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Overview
Comment: | More work on docs. |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | virtualTables |
Files: | files | file ages | folders |
SHA1: |
f31a811fbb122f520e4a73277958c772 |
User & Date: | mistachkin 2013-06-25 06:40:08.878 |
Context
2013-06-25
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06:58 | Document the SQLiteMemory class. check-in: 3b2c842774 user: mistachkin tags: virtualTables | |
06:40 | More work on docs. check-in: f31a811fbb user: mistachkin tags: virtualTables | |
04:17 | Add SQLiteNativeModule class. Revise table/cursor error handling methods of the SQLiteModule class to add the static variants of them. Rename the old CreateNativeModuleImpl method to GetNativeModuleImpl. Add new CreateNativeModuleImpl method that returns the default ISQLiteNativeModule implementation. More work on docs. check-in: c6554ef4c6 user: mistachkin tags: virtualTables | |
Changes
Changes to Doc/buildChm.tcl.
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78 79 80 81 82 83 84 85 | if {[string length $xmlDocFile] == 0 || ![file exists $xmlDocFile]} then { puts stdout "Cannot find XML doc file: $xmlDocFile" exit 1 } set data [readFile $xmlDocFile] set pattern { cref="([A-Z]):System\.Data\.SQLite\.} | > > | > > > | 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 | if {[string length $xmlDocFile] == 0 || ![file exists $xmlDocFile]} then { puts stdout "Cannot find XML doc file: $xmlDocFile" exit 1 } set data [readFile $xmlDocFile] set count 0 set pattern { cref="([A-Z]):System\.Data\.SQLite\.} incr count [regsub -all -- $pattern $data { cref="\1:system.Data.SQLite.} data] set pattern { name="([A-Z]):System\.Data\.SQLite\.} incr count [regsub -all -- $pattern $data { name="\1:system.Data.SQLite.} data] if {$count > 0} then { writeFile $xmlDocFile $data } else { puts stdout "*WARNING* File \"$xmlDocFile\" does not match: $pattern" } |
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Changes to System.Data.SQLite/SQLiteModule.cs.
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283 284 285 286 287 288 289 290 291 292 293 294 295 296 | #endregion } #endregion /////////////////////////////////////////////////////////////////////////// #region SQLiteValue Helper Class public sealed class SQLiteValue : ISQLiteNativeHandle { #region Private Data /// <summary> /// The native value handle. /// </summary> private IntPtr pValue; | > > > > | 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 | #endregion } #endregion /////////////////////////////////////////////////////////////////////////// #region SQLiteValue Helper Class /// <summary> /// This class represents a value from the SQLite core library that can be /// passed to the sqlite3_value_*() and associated functions. /// </summary> public sealed class SQLiteValue : ISQLiteNativeHandle { #region Private Data /// <summary> /// The native value handle. /// </summary> private IntPtr pValue; |
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1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 | /// <summary> /// This interface represents a virtual table implementation written in /// native code. /// </summary> public interface ISQLiteNativeModule { /// <summary> /// This method is called to create a new instance of a virtual table /// in response to a CREATE VIRTUAL TABLE statement. The db parameter /// is a pointer to the SQLite database connection that is executing /// the CREATE VIRTUAL TABLE statement. The pAux argument is the copy /// of the client data pointer that was the fourth argument to the /// sqlite3_create_module() or sqlite3_create_module_v2() call that /// registered the virtual table module. The argv parameter is an | > | 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 | /// <summary> /// This interface represents a virtual table implementation written in /// native code. /// </summary> public interface ISQLiteNativeModule { /// <summary> /// <para> /// This method is called to create a new instance of a virtual table /// in response to a CREATE VIRTUAL TABLE statement. The db parameter /// is a pointer to the SQLite database connection that is executing /// the CREATE VIRTUAL TABLE statement. The pAux argument is the copy /// of the client data pointer that was the fourth argument to the /// sqlite3_create_module() or sqlite3_create_module_v2() call that /// registered the virtual table module. The argv parameter is an |
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1616 1617 1618 1619 1620 1621 1622 | /// database, or "temp" for TEMP database, or the name given at the /// end of the ATTACH statement for attached databases. The third /// element of the array, argv[2], is the name of the new virtual /// table, as specified following the TABLE keyword in the CREATE /// VIRTUAL TABLE statement. If present, the fourth and subsequent /// strings in the argv[] array report the arguments to the module name /// in the CREATE VIRTUAL TABLE statement. | > | > | > | > > > | > | 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 | /// database, or "temp" for TEMP database, or the name given at the /// end of the ATTACH statement for attached databases. The third /// element of the array, argv[2], is the name of the new virtual /// table, as specified following the TABLE keyword in the CREATE /// VIRTUAL TABLE statement. If present, the fourth and subsequent /// strings in the argv[] array report the arguments to the module name /// in the CREATE VIRTUAL TABLE statement. /// </para> /// <para> /// The job of this method is to construct the new virtual table object /// (an sqlite3_vtab object) and return a pointer to it in *ppVTab. /// </para> /// <para> /// As part of the task of creating a new sqlite3_vtab structure, this /// method must invoke sqlite3_declare_vtab() to tell the SQLite core /// about the columns and datatypes in the virtual table. The /// sqlite3_declare_vtab() API has the following prototype: /// </para> /// <para> /// <code> /// int sqlite3_declare_vtab(sqlite3 *db, const char *zCreateTable) /// </code> /// </para> /// <para> /// The first argument to sqlite3_declare_vtab() must be the same /// database connection pointer as the first parameter to this method. /// The second argument to sqlite3_declare_vtab() must a /// zero-terminated UTF-8 string that contains a well-formed CREATE /// TABLE statement that defines the columns in the virtual table and /// their data types. The name of the table in this CREATE TABLE /// statement is ignored, as are all constraints. Only the column names /// and datatypes matter. The CREATE TABLE statement string need not to /// be held in persistent memory. The string can be deallocated and/or /// reused as soon as the sqlite3_declare_vtab() routine returns. /// </para> /// </summary> /// <param name="pDb"> /// The native database connection handle. /// </param> /// <param name="pAux"> /// The original native pointer value that was provided to the /// sqlite3_create_module(), sqlite3_create_module_v2() or |
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1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 | ref IntPtr pVtab, ref IntPtr pError ); /////////////////////////////////////////////////////////////////////// /// <summary> /// The xConnect method is very similar to xCreate. It has the same /// parameters and constructs a new sqlite3_vtab structure just like /// xCreate. And it must also call sqlite3_declare_vtab() like xCreate. | > > | > | > | > | > | > | > | 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 | ref IntPtr pVtab, ref IntPtr pError ); /////////////////////////////////////////////////////////////////////// /// <summary> /// <para> /// The xConnect method is very similar to xCreate. It has the same /// parameters and constructs a new sqlite3_vtab structure just like /// xCreate. And it must also call sqlite3_declare_vtab() like xCreate. /// </para> /// <para> /// The difference is that xConnect is called to establish a new /// connection to an existing virtual table whereas xCreate is called /// to create a new virtual table from scratch. /// </para> /// <para> /// The xCreate and xConnect methods are only different when the /// virtual table has some kind of backing store that must be /// initialized the first time the virtual table is created. The /// xCreate method creates and initializes the backing store. The /// xConnect method just connects to an existing backing store. /// </para> /// <para> /// As an example, consider a virtual table implementation that /// provides read-only access to existing comma-separated-value (CSV) /// files on disk. There is no backing store that needs to be created /// or initialized for such a virtual table (since the CSV files /// already exist on disk) so the xCreate and xConnect methods will be /// identical for that module. /// </para> /// <para> /// Another example is a virtual table that implements a full-text /// index. The xCreate method must create and initialize data /// structures to hold the dictionary and posting lists for that index. /// The xConnect method, on the other hand, only has to locate and use /// an existing dictionary and posting lists that were created by a /// prior xCreate call. /// </para> /// <para> /// The xConnect method must return SQLITE_OK if it is successful in /// creating the new virtual table, or SQLITE_ERROR if it is not /// successful. If not successful, the sqlite3_vtab structure must not /// be allocated. An error message may optionally be returned in *pzErr /// if unsuccessful. Space to hold the error message string must be /// allocated using an SQLite memory allocation function like /// sqlite3_malloc() or sqlite3_mprintf() as the SQLite core will /// attempt to free the space using sqlite3_free() after the error has /// been reported up to the application. /// </para> /// <para> /// The xConnect method is required for every virtual table /// implementation, though the xCreate and xConnect pointers of the /// sqlite3_module object may point to the same function the virtual /// table does not need to initialize backing store. /// </para> /// </summary> /// <param name="pDb"> /// The native database connection handle. /// </param> /// <param name="pAux"> /// The original native pointer value that was provided to the /// sqlite3_create_module(), sqlite3_create_module_v2() or |
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1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 | ref IntPtr pVtab, ref IntPtr pError ); /////////////////////////////////////////////////////////////////////// /// <summary> /// SQLite uses the xBestIndex method of a virtual table module to /// determine the best way to access the virtual table. The xBestIndex /// method has a prototype like this: | > > | | > | > | | 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 | ref IntPtr pVtab, ref IntPtr pError ); /////////////////////////////////////////////////////////////////////// /// <summary> /// <para> /// SQLite uses the xBestIndex method of a virtual table module to /// determine the best way to access the virtual table. The xBestIndex /// method has a prototype like this: /// </para> /// <code> /// int (*xBestIndex)(sqlite3_vtab *pVTab, sqlite3_index_info*); /// </code> /// <para> /// The SQLite core communicates with the xBestIndex method by filling /// in certain fields of the sqlite3_index_info structure and passing a /// pointer to that structure into xBestIndex as the second parameter. /// The xBestIndex method fills out other fields of this structure /// which forms the reply. The sqlite3_index_info structure looks like /// this: /// </para> /// <code> /// struct sqlite3_index_info { /// /* Inputs */ /// const int nConstraint; /* Number of entries in aConstraint */ /// const struct sqlite3_index_constraint { /// int iColumn; /* Column on left-hand side of /// * constraint */ /// unsigned char op; /* Constraint operator */ |
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1804 1805 1806 1807 1808 1809 1810 | /// char *idxStr; /* String, possibly obtained from /// * sqlite3_malloc() */ /// int needToFreeIdxStr; /* Free idxStr using sqlite3_free() if /// * true */ /// int orderByConsumed; /* True if output is already ordered */ /// double estimatedCost; /* Estimated cost of using this index */ /// }; | > | > | > | > | > | > | > | > | > | > | > | > | > | > | > | > | > | > | > | > | > | > | > | > | > | > | > | > | > | > | > | > > > | > | > > > | > | > > > | > | > | > | > | > > > | > | > > > | > | > | > | > | 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 2103 2104 2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181 2182 2183 2184 2185 2186 2187 2188 2189 2190 2191 2192 2193 2194 2195 2196 2197 2198 2199 2200 2201 2202 2203 2204 2205 2206 2207 2208 2209 2210 2211 2212 2213 2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 | /// char *idxStr; /* String, possibly obtained from /// * sqlite3_malloc() */ /// int needToFreeIdxStr; /* Free idxStr using sqlite3_free() if /// * true */ /// int orderByConsumed; /* True if output is already ordered */ /// double estimatedCost; /* Estimated cost of using this index */ /// }; /// </code> /// <para> /// In addition, there are some defined constants: /// </para> /// <code> /// #define SQLITE_INDEX_CONSTRAINT_EQ 2 /// #define SQLITE_INDEX_CONSTRAINT_GT 4 /// #define SQLITE_INDEX_CONSTRAINT_LE 8 /// #define SQLITE_INDEX_CONSTRAINT_LT 16 /// #define SQLITE_INDEX_CONSTRAINT_GE 32 /// #define SQLITE_INDEX_CONSTRAINT_MATCH 64 /// </code> /// <para> /// The SQLite core calls the xBestIndex method when it is compiling a /// query that involves a virtual table. In other words, SQLite calls /// this method when it is running sqlite3_prepare() or the equivalent. /// By calling this method, the SQLite core is saying to the virtual /// table that it needs to access some subset of the rows in the /// virtual table and it wants to know the most efficient way to do /// that access. The xBestIndex method replies with information that /// the SQLite core can then use to conduct an efficient search of the /// virtual table. /// </para> /// <para> /// While compiling a single SQL query, the SQLite core might call /// xBestIndex multiple times with different settings in /// sqlite3_index_info. The SQLite core will then select the /// combination that appears to give the best performance. /// </para> /// <para> /// Before calling this method, the SQLite core initializes an instance /// of the sqlite3_index_info structure with information about the /// query that it is currently trying to process. This information /// derives mainly from the WHERE clause and ORDER BY or GROUP BY /// clauses of the query, but also from any ON or USING clauses if the /// query is a join. The information that the SQLite core provides to /// the xBestIndex method is held in the part of the structure that is /// marked as "Inputs". The "Outputs" section is initialized to zero. /// </para> /// <para> /// The information in the sqlite3_index_info structure is ephemeral /// and may be overwritten or deallocated as soon as the xBestIndex /// method returns. If the xBestIndex method needs to remember any part /// of the sqlite3_index_info structure, it should make a copy. Care /// must be take to store the copy in a place where it will be /// deallocated, such as in the idxStr field with needToFreeIdxStr set /// to 1. /// </para> /// <para> /// Note that xBestIndex will always be called before xFilter, since /// the idxNum and idxStr outputs from xBestIndex are required inputs /// to xFilter. However, there is no guarantee that xFilter will be /// called following a successful xBestIndex. /// </para> /// <para> /// The xBestIndex method is required for every virtual table /// implementation. /// </para> /// <para> /// 2.3.1 Inputs /// </para> /// <para> /// The main thing that the SQLite core is trying to communicate to the /// virtual table is the constraints that are available to limit the /// number of rows that need to be searched. The aConstraint[] array /// contains one entry for each constraint. There will be exactly /// nConstraint entries in that array. /// </para> /// <para> /// Each constraint will correspond to a term in the WHERE clause or in /// a USING or ON clause that is of the form /// </para> /// <code> /// column OP EXPR /// </code> /// <para> /// Where "column" is a column in the virtual table, OP is an operator /// like "=" or "<", and EXPR is an arbitrary expression. So, for /// example, if the WHERE clause contained a term like this: /// </para> /// <code> /// a = 5 /// </code> /// <para> /// Then one of the constraints would be on the "a" column with /// operator "=" and an expression of "5". Constraints need not have a /// literal representation of the WHERE clause. The query optimizer /// might make transformations to the WHERE clause in order to extract /// as many constraints as it can. So, for example, if the WHERE clause /// contained something like this: /// </para> /// <code> /// x BETWEEN 10 AND 100 AND 999>y /// </code> /// <para> /// The query optimizer might translate this into three separate /// constraints: /// </para> /// <code> /// x >= 10 /// x <= 100 /// y < 999 /// </code> /// <para> /// For each constraint, the aConstraint[].iColumn field indicates /// which column appears on the left-hand side of the constraint. The /// first column of the virtual table is column 0. The rowid of the /// virtual table is column -1. The aConstraint[].op field indicates /// which operator is used. The SQLITE_INDEX_CONSTRAINT_* constants map /// integer constants into operator values. Columns occur in the order /// they were defined by the call to sqlite3_declare_vtab() in the /// xCreate or xConnect method. Hidden columns are counted when /// determining the column index. /// </para> /// <para> /// The aConstraint[] array contains information about all constraints /// that apply to the virtual table. But some of the constraints might /// not be usable because of the way tables are ordered in a join. The /// xBestIndex method must therefore only consider constraints that /// have an aConstraint[].usable flag which is true. /// </para> /// <para> /// In addition to WHERE clause constraints, the SQLite core also tells /// the xBestIndex method about the ORDER BY clause. (In an aggregate /// query, the SQLite core might put in GROUP BY clause information in /// place of the ORDER BY clause information, but this fact should not /// make any difference to the xBestIndex method.) If all terms of the /// ORDER BY clause are columns in the virtual table, then nOrderBy /// will be the number of terms in the ORDER BY clause and the /// aOrderBy[] array will identify the column for each term in the /// order by clause and whether or not that column is ASC or DESC. /// </para> /// <para> /// 2.3.2 Outputs /// </para> /// <para> /// Given all of the information above, the job of the xBestIndex /// method it to figure out the best way to search the virtual table. /// </para> /// <para> /// The xBestIndex method fills the idxNum and idxStr fields with /// information that communicates an indexing strategy to the xFilter /// method. The information in idxNum and idxStr is arbitrary as far as /// the SQLite core is concerned. The SQLite core just copies the /// information through to the xFilter method. Any desired meaning can /// be assigned to idxNum and idxStr as long as xBestIndex and xFilter /// agree on what that meaning is. /// </para> /// <para> /// The idxStr value may be a string obtained from an SQLite memory /// allocation function such as sqlite3_mprintf(). If this is the case, /// then the needToFreeIdxStr flag must be set to true so that the /// SQLite core will know to call sqlite3_free() on that string when it /// has finished with it, and thus avoid a memory leak. /// </para> /// <para> /// If the virtual table will output rows in the order specified by the /// ORDER BY clause, then the orderByConsumed flag may be set to true. /// If the output is not automatically in the correct order then /// orderByConsumed must be left in its default false setting. This /// will indicate to the SQLite core that it will need to do a separate /// sorting pass over the data after it comes out of the virtual table. /// </para> /// <para> /// The estimatedCost field should be set to the estimated number of /// disk access operations required to execute this query against the /// virtual table. The SQLite core will often call xBestIndex multiple /// times with different constraints, obtain multiple cost estimates, /// then choose the query plan that gives the lowest estimate. /// </para> /// <para> /// The aConstraintUsage[] array contains one element for each of the /// nConstraint constraints in the inputs section of the /// sqlite3_index_info structure. The aConstraintUsage[] array is used /// by xBestIndex to tell the core how it is using the constraints. /// </para> /// <para> /// The xBestIndex method may set aConstraintUsage[].argvIndex entries /// to values greater than one. Exactly one entry should be set to 1, /// another to 2, another to 3, and so forth up to as many or as few as /// the xBestIndex method wants. The EXPR of the corresponding /// constraints will then be passed in as the argv[] parameters to /// xFilter. /// </para> /// <para> /// For example, if the aConstraint[3].argvIndex is set to 1, then when /// xFilter is called, the argv[0] passed to xFilter will have the EXPR /// value of the aConstraint[3] constraint. /// </para> /// <para> /// By default, the SQLite core double checks all constraints on each /// row of the virtual table that it receives. If such a check is /// redundant, the xBestFilter method can suppress that double-check by /// setting aConstraintUsage[].omit. /// </para> /// </summary> /// <param name="pVtab"> /// The native pointer to the sqlite3_vtab derived structure. /// </param> /// <param name="pIndex"> /// The native pointer to the sqlite3_index_info structure. /// </param> /// <returns> /// A standard SQLite return code. /// </returns> SQLiteErrorCode xBestIndex( IntPtr pVtab, IntPtr pIndex ); /////////////////////////////////////////////////////////////////////// /// <summary> /// <para> /// This method releases a connection to a virtual table. Only the /// sqlite3_vtab object is destroyed. The virtual table is not /// destroyed and any backing store associated with the virtual table /// persists. This method undoes the work of xConnect. /// </para> /// <para> /// This method is a destructor for a connection to the virtual table. /// Contrast this method with xDestroy. The xDestroy is a destructor /// for the entire virtual table. /// </para> /// <para> /// The xDisconnect method is required for every virtual table /// implementation, though it is acceptable for the xDisconnect and /// xDestroy methods to be the same function if that makes sense for /// the particular virtual table. /// </para> /// </summary> /// <param name="pVtab"> /// The native pointer to the sqlite3_vtab derived structure. /// </param> /// <returns> /// A standard SQLite return code. /// </returns> SQLiteErrorCode xDisconnect( IntPtr pVtab ); /////////////////////////////////////////////////////////////////////// /// <summary> /// <para> /// This method releases a connection to a virtual table, just like the /// xDisconnect method, and it also destroys the underlying table /// implementation. This method undoes the work of xCreate. /// </para> /// <para> /// The xDisconnect method is called whenever a database connection /// that uses a virtual table is closed. The xDestroy method is only /// called when a DROP TABLE statement is executed against the virtual /// table. /// </para> /// <para> /// The xDestroy method is required for every virtual table /// implementation, though it is acceptable for the xDisconnect and /// xDestroy methods to be the same function if that makes sense for /// the particular virtual table. /// </para> /// </summary> /// <param name="pVtab"> /// The native pointer to the sqlite3_vtab derived structure. /// </param> /// <returns> /// A standard SQLite return code. /// </returns> SQLiteErrorCode xDestroy( IntPtr pVtab ); /////////////////////////////////////////////////////////////////////// /// <summary> /// <para> /// The xOpen method creates a new cursor used for accessing (read /// and/or writing) a virtual table. A successful invocation of this /// method will allocate the memory for the sqlite3_vtab_cursor (or a /// subclass), initialize the new object, and make *ppCursor point to /// the new object. The successful call then returns SQLITE_OK. /// </para> /// <para> /// For every successful call to this method, the SQLite core will /// later invoke the xClose method to destroy the allocated cursor. /// </para> /// <para> /// The xOpen method need not initialize the pVtab field of the /// sqlite3_vtab_cursor structure. The SQLite core will take care of /// that chore automatically. /// </para> /// <para> /// A virtual table implementation must be able to support an arbitrary /// number of simultaneously open cursors. /// </para> /// <para> /// When initially opened, the cursor is in an undefined state. The /// SQLite core will invoke the xFilter method on the cursor prior to /// any attempt to position or read from the cursor. /// </para> /// <para> /// The xOpen method is required for every virtual table /// implementation. /// </para> /// </summary> /// <param name="pVtab"> /// The native pointer to the sqlite3_vtab derived structure. /// </param> /// <param name="pCursor"> /// Upon success, this parameter must be modified to point to the newly /// created native sqlite3_vtab_cursor derived structure. /// </param> /// <returns> /// A standard SQLite return code. /// </returns> SQLiteErrorCode xOpen( IntPtr pVtab, ref IntPtr pCursor ); /////////////////////////////////////////////////////////////////////// /// <summary> /// <para> /// The xClose method closes a cursor previously opened by xOpen. The /// SQLite core will always call xClose once for each cursor opened /// using xOpen. /// </para> /// <para> /// This method must release all resources allocated by the /// corresponding xOpen call. The routine will not be called again even /// if it returns an error. The SQLite core will not use the /// sqlite3_vtab_cursor again after it has been closed. /// </para> /// <para> /// The xClose method is required for every virtual table /// implementation. /// </para> /// </summary> /// <param name="pCursor"> /// The native pointer to the sqlite3_vtab_cursor derived structure. /// </param> /// <returns> /// A standard SQLite return code. /// </returns> SQLiteErrorCode xClose( IntPtr pCursor ); /////////////////////////////////////////////////////////////////////// /// <summary> /// <para> /// This method begins a search of a virtual table. The first argument /// is a cursor opened by xOpen. The next two argument define a /// particular search index previously chosen by xBestIndex. The /// specific meanings of idxNum and idxStr are unimportant as long as /// xFilter and xBestIndex agree on what that meaning is. /// </para> /// <para> /// The xBestIndex function may have requested the values of certain /// expressions using the aConstraintUsage[].argvIndex values of the /// sqlite3_index_info structure. Those values are passed to xFilter /// using the argc and argv parameters. /// </para> /// <para> /// If the virtual table contains one or more rows that match the /// search criteria, then the cursor must be left point at the first /// row. Subsequent calls to xEof must return false (zero). If there /// are no rows match, then the cursor must be left in a state that /// will cause the xEof to return true (non-zero). The SQLite engine /// will use the xColumn and xRowid methods to access that row content. /// The xNext method will be used to advance to the next row. /// </para> /// <para> /// This method must return SQLITE_OK if successful, or an sqlite error /// code if an error occurs. /// </para> /// <para> /// The xFilter method is required for every virtual table /// implementation. /// </para> /// </summary> /// <param name="pCursor"> /// The native pointer to the sqlite3_vtab_cursor derived structure. /// </param> /// <param name="idxNum"> /// Number used to help identify the selected index. /// </param> |
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2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 | int argc, IntPtr[] argv ); /////////////////////////////////////////////////////////////////////// /// <summary> /// The xNext method advances a virtual table cursor to the next row of /// a result set initiated by xFilter. If the cursor is already /// pointing at the last row when this routine is called, then the /// cursor no longer points to valid data and a subsequent call to the /// xEof method must return true (non-zero). If the cursor is /// successfully advanced to another row of content, then subsequent /// calls to xEof must return false (zero). | > > | > | > > > | > > > | | | | | | | | | | | > | > | > | > | 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296 2297 2298 2299 2300 2301 2302 2303 2304 2305 2306 2307 2308 2309 2310 2311 2312 2313 2314 2315 2316 2317 2318 2319 2320 2321 2322 2323 2324 2325 2326 2327 2328 2329 2330 2331 2332 2333 2334 2335 2336 2337 2338 2339 2340 2341 2342 | int argc, IntPtr[] argv ); /////////////////////////////////////////////////////////////////////// /// <summary> /// <para> /// The xNext method advances a virtual table cursor to the next row of /// a result set initiated by xFilter. If the cursor is already /// pointing at the last row when this routine is called, then the /// cursor no longer points to valid data and a subsequent call to the /// xEof method must return true (non-zero). If the cursor is /// successfully advanced to another row of content, then subsequent /// calls to xEof must return false (zero). /// </para> /// <para> /// This method must return SQLITE_OK if successful, or an sqlite error /// code if an error occurs. /// </para> /// <para> /// The xNext method is required for every virtual table /// implementation. /// </para> /// </summary> /// <param name="pCursor"> /// The native pointer to the sqlite3_vtab_cursor derived structure. /// </param> /// <returns> /// A standard SQLite return code. /// </returns> SQLiteErrorCode xNext( IntPtr pCursor ); /////////////////////////////////////////////////////////////////////// /// <summary> /// <para> /// The xEof method must return false (zero) if the specified cursor /// currently points to a valid row of data, or true (non-zero) /// otherwise. This method is called by the SQL engine immediately /// after each xFilter and xNext invocation. /// </para> /// <para> /// The xEof method is required for every virtual table implementation. /// </para> /// </summary> /// <param name="pCursor"> /// The native pointer to the sqlite3_vtab_cursor derived structure. /// </param> /// <returns> /// Non-zero if no more rows are available; zero otherwise. /// </returns> int xEof( IntPtr pCursor ); /////////////////////////////////////////////////////////////////////// /// <summary> /// <para> /// The SQLite core invokes this method in order to find the value for /// the N-th column of the current row. N is zero-based so the first /// column is numbered 0. The xColumn method may return its result back /// to SQLite using one of the following interface: /// </para> /// <code> /// sqlite3_result_blob() /// sqlite3_result_double() /// sqlite3_result_int() /// sqlite3_result_int64() /// sqlite3_result_null() /// sqlite3_result_text() /// sqlite3_result_text16() /// sqlite3_result_text16le() /// sqlite3_result_text16be() /// sqlite3_result_zeroblob() /// </code> /// <para> /// If the xColumn method implementation calls none of the functions /// above, then the value of the column defaults to an SQL NULL. /// </para> /// <para> /// To raise an error, the xColumn method should use one of the /// result_text() methods to set the error message text, then return an /// appropriate error code. The xColumn method must return SQLITE_OK on /// success. /// </para> /// <para> /// The xColumn method is required for every virtual table /// implementation. /// </para> /// </summary> /// <param name="pCursor"> /// The native pointer to the sqlite3_vtab_cursor derived structure. /// </param> /// <param name="pContext"> /// The native pointer to the sqlite3_context structure to be used /// for returning the specified column value to the SQLite core |
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2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 | IntPtr pContext, int index ); /////////////////////////////////////////////////////////////////////// /// <summary> /// A successful invocation of this method will cause *pRowid to be /// filled with the rowid of row that the virtual table cursor pCur is /// currently pointing at. This method returns SQLITE_OK on success. It /// returns an appropriate error code on failure. | > > | > > > | > | > | > | > | > | > | > | > | > | > | > | > | > | > | > | > | > | > | > | 2354 2355 2356 2357 2358 2359 2360 2361 2362 2363 2364 2365 2366 2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 2377 2378 2379 2380 2381 2382 2383 2384 2385 2386 2387 2388 2389 2390 2391 2392 2393 2394 2395 2396 2397 2398 2399 2400 2401 2402 2403 2404 2405 2406 2407 2408 2409 2410 2411 2412 2413 2414 2415 2416 2417 2418 2419 2420 2421 2422 2423 2424 2425 2426 2427 2428 2429 2430 2431 2432 2433 2434 2435 2436 2437 2438 2439 2440 2441 2442 2443 2444 2445 2446 2447 2448 2449 2450 2451 2452 2453 2454 2455 2456 2457 2458 2459 2460 2461 2462 2463 2464 2465 2466 2467 2468 2469 2470 2471 2472 2473 2474 2475 2476 2477 2478 2479 2480 2481 2482 2483 2484 2485 2486 2487 2488 2489 2490 2491 2492 2493 2494 2495 2496 2497 2498 2499 2500 2501 2502 2503 2504 2505 2506 2507 2508 | IntPtr pContext, int index ); /////////////////////////////////////////////////////////////////////// /// <summary> /// <para> /// A successful invocation of this method will cause *pRowid to be /// filled with the rowid of row that the virtual table cursor pCur is /// currently pointing at. This method returns SQLITE_OK on success. It /// returns an appropriate error code on failure. /// </para> /// <para> /// The xRowid method is required for every virtual table /// implementation. /// </para> /// </summary> /// <param name="pCursor"> /// The native pointer to the sqlite3_vtab_cursor derived structure. /// </param> /// <param name="rowId"> /// Upon success, this parameter must be modified to contain the unique /// integer row identifier for the current row for the specified cursor. /// </param> /// <returns> /// A standard SQLite return code. /// </returns> SQLiteErrorCode xRowId( IntPtr pCursor, ref long rowId ); /////////////////////////////////////////////////////////////////////// /// <summary> /// <para> /// All changes to a virtual table are made using the xUpdate method. /// This one method can be used to insert, delete, or update. /// </para> /// <para> /// The argc parameter specifies the number of entries in the argv /// array. The value of argc will be 1 for a pure delete operation or /// N+2 for an insert or replace or update where N is the number of /// columns in the table. In the previous sentence, N includes any /// hidden columns. /// </para> /// <para> /// Every argv entry will have a non-NULL value in C but may contain /// the SQL value NULL. In other words, it is always true that /// argv[i]!=0 for i between 0 and argc-1. However, it might be the /// case that sqlite3_value_type(argv[i])==SQLITE_NULL. /// </para> /// <para> /// The argv[0] parameter is the rowid of a row in the virtual table /// to be deleted. If argv[0] is an SQL NULL, then no deletion occurs. /// </para> /// <para> /// The argv[1] parameter is the rowid of a new row to be inserted into /// the virtual table. If argv[1] is an SQL NULL, then the /// implementation must choose a rowid for the newly inserted row. /// Subsequent argv[] entries contain values of the columns of the /// virtual table, in the order that the columns were declared. The /// number of columns will match the table declaration that the /// xConnect or xCreate method made using the sqlite3_declare_vtab() /// call. All hidden columns are included. /// </para> /// <para> /// When doing an insert without a rowid (argc>1, argv[1] is an SQL /// NULL), the implementation must set *pRowid to the rowid of the /// newly inserted row; this will become the value returned by the /// sqlite3_last_insert_rowid() function. Setting this value in all the /// other cases is a harmless no-op; the SQLite engine ignores the /// *pRowid return value if argc==1 or argv[1] is not an SQL NULL. /// </para> /// <para> /// Each call to xUpdate will fall into one of cases shown below. Note /// that references to argv[i] mean the SQL value held within the /// argv[i] object, not the argv[i] object itself. /// </para> /// <code> /// argc = 1 /// </code> /// <para> /// The single row with rowid equal to argv[0] is deleted. No /// insert occurs. /// </para> /// <code> /// argc > 1 /// argv[0] = NULL /// </code> /// <para> /// A new row is inserted with a rowid argv[1] and column /// values in argv[2] and following. If argv[1] is an SQL NULL, /// the a new unique rowid is generated automatically. /// </para> /// <code> /// argc > 1 /// argv[0] ? NULL /// argv[0] = argv[1] /// </code> /// <para> /// The row with rowid argv[0] is updated with new values in /// argv[2] and following parameters. /// </para> /// <code> /// argc > 1 /// argv[0] ? NULL /// argv[0] ? argv[1] /// </code> /// <para> /// The row with rowid argv[0] is updated with rowid argv[1] /// and new values in argv[2] and following parameters. This /// will occur when an SQL statement updates a rowid, as in /// the statement: /// </para> /// <code> /// UPDATE table SET rowid=rowid+1 WHERE ...; /// </code> /// <para> /// The xUpdate method must return SQLITE_OK if and only if it is /// successful. If a failure occurs, the xUpdate must return an /// appropriate error code. On a failure, the pVTab->zErrMsg element /// may optionally be replaced with error message text stored in memory /// allocated from SQLite using functions such as sqlite3_mprintf() or /// sqlite3_malloc(). /// </para> /// <para> /// If the xUpdate method violates some constraint of the virtual table /// (including, but not limited to, attempting to store a value of the /// wrong datatype, attempting to store a value that is too large or /// too small, or attempting to change a read-only value) then the /// xUpdate must fail with an appropriate error code. /// </para> /// <para> /// There might be one or more sqlite3_vtab_cursor objects open and in /// use on the virtual table instance and perhaps even on the row of /// the virtual table when the xUpdate method is invoked. The /// implementation of xUpdate must be prepared for attempts to delete /// or modify rows of the table out from other existing cursors. If the /// virtual table cannot accommodate such changes, the xUpdate method /// must return an error code. /// </para> /// <para> /// The xUpdate method is optional. If the xUpdate pointer in the /// sqlite3_module for a virtual table is a NULL pointer, then the /// virtual table is read-only. /// </para> /// </summary> /// <param name="pVtab"> /// The native pointer to the sqlite3_vtab derived structure. /// </param> /// <param name="argc"> /// The number of new or modified column values contained in /// <paramref name="argv" />. |
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2406 2407 2408 2409 2410 2411 2412 2413 2414 | IntPtr[] argv, ref long rowId ); /////////////////////////////////////////////////////////////////////// /// <summary> /// This method begins a transaction on a virtual table. This is method /// is optional. The xBegin pointer of sqlite3_module may be NULL. | > > | > > > | > > > | > > > | > > > | > | 2524 2525 2526 2527 2528 2529 2530 2531 2532 2533 2534 2535 2536 2537 2538 2539 2540 2541 2542 2543 2544 2545 2546 2547 2548 2549 2550 2551 2552 2553 2554 2555 2556 2557 2558 2559 2560 2561 2562 2563 2564 2565 2566 2567 2568 2569 2570 2571 2572 2573 2574 2575 2576 2577 2578 2579 2580 2581 2582 2583 2584 2585 2586 2587 2588 2589 2590 2591 2592 2593 2594 2595 2596 2597 2598 2599 2600 2601 2602 2603 2604 2605 2606 2607 2608 2609 2610 2611 2612 2613 2614 2615 2616 2617 2618 2619 2620 2621 2622 2623 2624 2625 2626 2627 2628 2629 2630 2631 2632 2633 2634 2635 2636 2637 2638 2639 2640 2641 2642 2643 2644 2645 | IntPtr[] argv, ref long rowId ); /////////////////////////////////////////////////////////////////////// /// <summary> /// <para> /// This method begins a transaction on a virtual table. This is method /// is optional. The xBegin pointer of sqlite3_module may be NULL. /// </para> /// <para> /// This method is always followed by one call to either the xCommit or /// xRollback method. Virtual table transactions do not nest, so the /// xBegin method will not be invoked more than once on a single /// virtual table without an intervening call to either xCommit or /// xRollback. Multiple calls to other methods can and likely will /// occur in between the xBegin and the corresponding xCommit or /// xRollback. /// </para> /// </summary> /// <param name="pVtab"> /// The native pointer to the sqlite3_vtab derived structure. /// </param> /// <returns> /// A standard SQLite return code. /// </returns> SQLiteErrorCode xBegin( IntPtr pVtab ); /////////////////////////////////////////////////////////////////////// /// <summary> /// <para> /// This method signals the start of a two-phase commit on a virtual /// table. This is method is optional. The xSync pointer of /// sqlite3_module may be NULL. /// </para> /// <para> /// This method is only invoked after call to the xBegin method and /// prior to an xCommit or xRollback. In order to implement two-phase /// commit, the xSync method on all virtual tables is invoked prior to /// invoking the xCommit method on any virtual table. If any of the /// xSync methods fail, the entire transaction is rolled back. /// </para> /// </summary> /// <param name="pVtab"> /// The native pointer to the sqlite3_vtab derived structure. /// </param> /// <returns> /// A standard SQLite return code. /// </returns> SQLiteErrorCode xSync( IntPtr pVtab ); /////////////////////////////////////////////////////////////////////// /// <summary> /// <para> /// This method causes a virtual table transaction to commit. This is /// method is optional. The xCommit pointer of sqlite3_module may be /// NULL. /// </para> /// <para> /// A call to this method always follows a prior call to xBegin and /// xSync. /// </para> /// </summary> /// <param name="pVtab"> /// The native pointer to the sqlite3_vtab derived structure. /// </param> /// <returns> /// A standard SQLite return code. /// </returns> SQLiteErrorCode xCommit( IntPtr pVtab ); /////////////////////////////////////////////////////////////////////// /// <summary> /// <para> /// This method causes a virtual table transaction to rollback. This is /// method is optional. The xRollback pointer of sqlite3_module may be /// NULL. /// </para> /// <para> /// A call to this method always follows a prior call to xBegin. /// </para> /// </summary> /// <param name="pVtab"> /// The native pointer to the sqlite3_vtab derived structure. /// </param> /// <returns> /// A standard SQLite return code. /// </returns> SQLiteErrorCode xRollback( IntPtr pVtab ); /////////////////////////////////////////////////////////////////////// /// <summary> /// <para> /// This method provides notification that the virtual table /// implementation that the virtual table will be given a new name. If /// this method returns SQLITE_OK then SQLite renames the table. If /// this method returns an error code then the renaming is prevented. /// </para> /// <para> /// The xRename method is required for every virtual table /// implementation. /// </para> /// </summary> /// <param name="pVtab"> /// The native pointer to the sqlite3_vtab derived structure. /// </param> /// <param name="nArg"> /// The number of arguments to the function being sought. /// </param> |
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2532 2533 2534 2535 2536 2537 2538 2539 2540 2541 2542 | ref SQLiteCallback callback, ref IntPtr pClientData ); /////////////////////////////////////////////////////////////////////// /// <summary> /// This method provides notification that the virtual table /// implementation that the virtual table will be given a new name. If /// this method returns SQLITE_OK then SQLite renames the table. If /// this method returns an error code then the renaming is prevented. | > > | > > > | > | > > > | > | > > > | > | > | 2665 2666 2667 2668 2669 2670 2671 2672 2673 2674 2675 2676 2677 2678 2679 2680 2681 2682 2683 2684 2685 2686 2687 2688 2689 2690 2691 2692 2693 2694 2695 2696 2697 2698 2699 2700 2701 2702 2703 2704 2705 2706 2707 2708 2709 2710 2711 2712 2713 2714 2715 2716 2717 2718 2719 2720 2721 2722 2723 2724 2725 2726 2727 2728 2729 2730 2731 2732 2733 2734 2735 2736 2737 2738 2739 2740 2741 2742 2743 2744 2745 2746 2747 2748 2749 2750 2751 2752 2753 2754 2755 2756 2757 2758 2759 2760 2761 2762 2763 2764 2765 2766 2767 2768 2769 2770 2771 2772 2773 2774 2775 2776 2777 2778 2779 2780 2781 2782 2783 2784 2785 2786 2787 2788 2789 2790 2791 2792 2793 2794 2795 2796 2797 2798 2799 2800 2801 2802 2803 2804 2805 2806 2807 2808 2809 | ref SQLiteCallback callback, ref IntPtr pClientData ); /////////////////////////////////////////////////////////////////////// /// <summary> /// <para> /// This method provides notification that the virtual table /// implementation that the virtual table will be given a new name. If /// this method returns SQLITE_OK then SQLite renames the table. If /// this method returns an error code then the renaming is prevented. /// </para> /// <para> /// The xRename method is required for every virtual table /// implementation. /// </para> /// </summary> /// <param name="pVtab"> /// The native pointer to the sqlite3_vtab derived structure. /// </param> /// <param name="zNew"> /// The native pointer to the UTF-8 encoded string containing the new /// name for the virtual table. /// </param> /// <returns> /// A standard SQLite return code. /// </returns> SQLiteErrorCode xRename( IntPtr pVtab, IntPtr zNew ); /////////////////////////////////////////////////////////////////////// /// <summary> /// <para> /// These methods provide the virtual table implementation an /// opportunity to implement nested transactions. They are always /// optional and will only be called in SQLite version 3.7.7 and later. /// </para> /// <para> /// When xSavepoint(X,N) is invoked, that is a signal to the virtual /// table X that it should save its current state as savepoint N. A /// subsequent call to xRollbackTo(X,R) means that the state of the /// virtual table should return to what it was when xSavepoint(X,R) was /// last called. The call to xRollbackTo(X,R) will invalidate all /// savepoints with N>R; none of the invalided savepoints will be /// rolled back or released without first being reinitialized by a call /// to xSavepoint(). A call to xRelease(X,M) invalidates all savepoints /// where N>=M. /// </para> /// <para> /// None of the xSavepoint(), xRelease(), or xRollbackTo() methods will /// ever be called except in between calls to xBegin() and either /// xCommit() or xRollback(). /// </para> /// </summary> /// <param name="pVtab"> /// The native pointer to the sqlite3_vtab derived structure. /// </param> /// <param name="iSavepoint"> /// This is an integer identifier under which the the current state of /// the virtual table should be saved. /// </param> /// <returns> /// A standard SQLite return code. /// </returns> SQLiteErrorCode xSavepoint( IntPtr pVtab, int iSavepoint ); /////////////////////////////////////////////////////////////////////// /// <summary> /// <para> /// These methods provide the virtual table implementation an /// opportunity to implement nested transactions. They are always /// optional and will only be called in SQLite version 3.7.7 and later. /// </para> /// <para> /// When xSavepoint(X,N) is invoked, that is a signal to the virtual /// table X that it should save its current state as savepoint N. A /// subsequent call to xRollbackTo(X,R) means that the state of the /// virtual table should return to what it was when xSavepoint(X,R) was /// last called. The call to xRollbackTo(X,R) will invalidate all /// savepoints with N>R; none of the invalided savepoints will be /// rolled back or released without first being reinitialized by a call /// to xSavepoint(). A call to xRelease(X,M) invalidates all savepoints /// where N>=M. /// </para> /// <para> /// None of the xSavepoint(), xRelease(), or xRollbackTo() methods will /// ever be called except in between calls to xBegin() and either /// xCommit() or xRollback(). /// </para> /// </summary> /// <param name="pVtab"> /// The native pointer to the sqlite3_vtab derived structure. /// </param> /// <param name="iSavepoint"> /// This is an integer used to indicate that any saved states with an /// identifier greater than or equal to this should be deleted by the /// virtual table. /// </param> /// <returns> /// A standard SQLite return code. /// </returns> SQLiteErrorCode xRelease( IntPtr pVtab, int iSavepoint ); /////////////////////////////////////////////////////////////////////// /// <summary> /// <para> /// These methods provide the virtual table implementation an /// opportunity to implement nested transactions. They are always /// optional and will only be called in SQLite version 3.7.7 and later. /// </para> /// <para> /// When xSavepoint(X,N) is invoked, that is a signal to the virtual /// table X that it should save its current state as savepoint N. A /// subsequent call to xRollbackTo(X,R) means that the state of the /// virtual table should return to what it was when xSavepoint(X,R) was /// last called. The call to xRollbackTo(X,R) will invalidate all /// savepoints with N>R; none of the invalided savepoints will be /// rolled back or released without first being reinitialized by a call /// to xSavepoint(). A call to xRelease(X,M) invalidates all savepoints /// where N>=M. /// </para> /// <para> /// None of the xSavepoint(), xRelease(), or xRollbackTo() methods will /// ever be called except in between calls to xBegin() and either /// xCommit() or xRollback(). /// </para> /// </summary> /// <param name="pVtab"> /// The native pointer to the sqlite3_vtab derived structure. /// </param> /// <param name="iSavepoint"> /// This is an integer identifier used to specify a specific saved /// state for the virtual table for it to restore itself back to, which |
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4035 4036 4037 4038 4039 4040 4041 | /// </param> /// <param name="pVtab"> /// See the <see cref="ISQLiteNativeModule.xConnect" /> method. /// </param> /// <param name="pError"> /// See the <see cref="ISQLiteNativeModule.xConnect" /> method. /// </param> | | > > | 4183 4184 4185 4186 4187 4188 4189 4190 4191 4192 4193 4194 4195 4196 4197 4198 4199 | /// </param> /// <param name="pVtab"> /// See the <see cref="ISQLiteNativeModule.xConnect" /> method. /// </param> /// <param name="pError"> /// See the <see cref="ISQLiteNativeModule.xConnect" /> method. /// </param> /// <returns> /// See the <see cref="ISQLiteNativeModule.xConnect" /> method. /// </returns> public SQLiteErrorCode xConnect( IntPtr pDb, IntPtr pAux, int argc, IntPtr[] argv, ref IntPtr pVtab, ref IntPtr pError |
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4693 4694 4695 4696 4697 4698 4699 | #endregion } #endregion /////////////////////////////////////////////////////////////////////// #region Private Constants | > > > > | > > > > > > > > > > > | > > > > > > > | < > > | | < < < > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | | 4843 4844 4845 4846 4847 4848 4849 4850 4851 4852 4853 4854 4855 4856 4857 4858 4859 4860 4861 4862 4863 4864 4865 4866 4867 4868 4869 4870 4871 4872 4873 4874 4875 4876 4877 4878 4879 4880 4881 4882 4883 4884 4885 4886 4887 4888 4889 4890 4891 4892 4893 4894 4895 4896 4897 4898 4899 4900 4901 4902 4903 4904 4905 4906 4907 4908 4909 4910 4911 4912 4913 4914 4915 4916 4917 4918 4919 4920 4921 4922 4923 4924 4925 4926 4927 4928 4929 4930 4931 4932 4933 4934 4935 4936 4937 4938 4939 4940 4941 4942 4943 4944 4945 4946 4947 4948 4949 4950 4951 4952 4953 4954 4955 4956 4957 4958 4959 4960 | #endregion } #endregion /////////////////////////////////////////////////////////////////////// #region Private Constants /// <summary> /// The default estimated cost for use with the /// <see cref="ISQLiteManagedModule.BestIndex" /> method. /// </summary> private static readonly double DefaultEstimatedCost = double.MaxValue; /////////////////////////////////////////////////////////////////////// /// <summary> /// The default version of the native sqlite3_module structure in use. /// </summary> private static readonly int DefaultModuleVersion = 2; #endregion /////////////////////////////////////////////////////////////////////// #region Private Data /// <summary> /// This field is used to store the native sqlite3_module structure /// associated with this object instance. /// </summary> private UnsafeNativeMethods.sqlite3_module nativeModule; /////////////////////////////////////////////////////////////////////// /// <summary> /// This field is used to store the virtual table instances associated /// with this module. The native pointer to the sqlite3_vtab derived /// structure is used to key into this collection. /// </summary> private Dictionary<IntPtr, SQLiteVirtualTable> tables; /////////////////////////////////////////////////////////////////////// /// <summary> /// This field is used to store the virtual table cursor instances /// associated with this module. The native pointer to the /// sqlite3_vtab_cursor derived structure is used to key into this /// collection. /// </summary> private Dictionary<IntPtr, SQLiteVirtualTableCursor> cursors; #endregion /////////////////////////////////////////////////////////////////////// #region Public Constructors /// <summary> /// Constructs an instance of this class. /// </summary> /// <param name="name"> /// The name of the module. /// </param> public SQLiteModule(string name) { if (name == null) throw new ArgumentNullException("name"); this.name = name; this.tables = new Dictionary<IntPtr, SQLiteVirtualTable>(); this.cursors = new Dictionary<IntPtr, SQLiteVirtualTableCursor>(); } #endregion /////////////////////////////////////////////////////////////////////// #region Internal Methods /// <summary> /// Creates and returns the native sqlite_module structure using the /// configured (or default) <see cref="ISQLiteNativeModule" /> /// interface implementation. /// </summary> /// <returns> /// The native sqlite_module structure using the configured (or /// default) <see cref="ISQLiteNativeModule" /> interface /// implementation. /// </returns> internal UnsafeNativeMethods.sqlite3_module CreateNativeModule() { return CreateNativeModule(GetNativeModuleImpl()); } #endregion /////////////////////////////////////////////////////////////////////// #region Private Methods /// <summary> /// Creates and returns the native sqlite_module structure using the /// specified <see cref="ISQLiteNativeModule" /> interface /// implementation. /// </summary> /// <param name="module"> /// The <see cref="ISQLiteNativeModule" /> interface implementation to /// use. /// </param> /// <returns> /// The native sqlite_module structure using the specified /// <see cref="ISQLiteNativeModule" /> interface implementation. /// </returns> private UnsafeNativeMethods.sqlite3_module CreateNativeModule( ISQLiteNativeModule module ) { nativeModule = new UnsafeNativeMethods.sqlite3_module(); nativeModule.iVersion = DefaultModuleVersion; if (module != null) { nativeModule.xCreate = new UnsafeNativeMethods.xCreate( module.xCreate); nativeModule.xConnect = new UnsafeNativeMethods.xConnect( |
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4871 4872 4873 4874 4875 4876 4877 4878 4879 | } #endregion /////////////////////////////////////////////////////////////////////// #region Protected Members #region Module Helper Methods protected virtual ISQLiteNativeModule GetNativeModuleImpl() { | > > > > > > > > > > > > > > > | > > > > > > > > > > > > > > > > > > > > > > > > | 5082 5083 5084 5085 5086 5087 5088 5089 5090 5091 5092 5093 5094 5095 5096 5097 5098 5099 5100 5101 5102 5103 5104 5105 5106 5107 5108 5109 5110 5111 5112 5113 5114 5115 5116 5117 5118 5119 5120 5121 5122 5123 5124 5125 5126 5127 5128 5129 5130 5131 5132 5133 5134 5135 5136 5137 5138 5139 5140 5141 5142 5143 5144 5145 5146 5147 5148 5149 5150 5151 5152 5153 5154 5155 5156 5157 5158 5159 5160 | } #endregion /////////////////////////////////////////////////////////////////////// #region Protected Members #region Module Helper Methods /// <summary> /// Gets and returns the <see cref="ISQLiteNativeModule" /> interface /// implementation to be used when creating the native sqlite3_module /// structure. Derived classes may override this method to supply an /// alternate implementation for the <see cref="ISQLiteNativeModule" /> /// interface. /// </summary> /// <returns> /// The <see cref="ISQLiteNativeModule" /> interface implementation to /// be used when populating the native sqlite3_module structure. If /// the returned value is null, the private methods provided by the /// <see cref="SQLiteModule" /> class and relating to the /// <see cref="ISQLiteNativeModule" /> interface will be used to /// create the necessary delegates. /// </returns> protected virtual ISQLiteNativeModule GetNativeModuleImpl() { return null; /* NOTE: Use the built-in default delegates. */ } /////////////////////////////////////////////////////////////////////// /// <summary> /// Creates and returns the <see cref="ISQLiteNativeModule" /> /// interface implementation corresponding to the current /// <see cref="SQLiteModule" /> object instance. /// </summary> /// <returns> /// The <see cref="ISQLiteNativeModule" /> interface implementation /// corresponding to the current <see cref="SQLiteModule" /> object /// instance. /// </returns> protected virtual ISQLiteNativeModule CreateNativeModuleImpl() { return new SQLiteNativeModule(this); } #endregion /////////////////////////////////////////////////////////////////////// #region Native Table Helper Methods /// <summary> /// Allocates a native sqlite3_vtab derived structure and returns a /// native pointer to it. /// </summary> /// <returns> /// A native pointer to a native sqlite3_vtab derived structure. /// </returns> protected virtual IntPtr AllocateTable() { int size = Marshal.SizeOf(typeof( UnsafeNativeMethods.sqlite3_vtab)); return SQLiteMemory.Allocate(size); } /////////////////////////////////////////////////////////////////////// /// <summary> /// Zeros out the fields of a native sqlite3_vtab derived structure. /// </summary> /// <param name="pVtab"> /// The native pointer to the native sqlite3_vtab derived structure to /// zero. /// </param> protected virtual void ZeroTable( IntPtr pVtab ) { if (pVtab == IntPtr.Zero) return; |
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4919 4920 4921 4922 4923 4924 4925 4926 4927 4928 4929 4930 4931 4932 4933 4934 4935 4936 4937 4938 4939 4940 4941 4942 4943 4944 4945 4946 4947 4948 4949 4950 4951 4952 4953 4954 4955 4956 4957 4958 4959 4960 4961 4962 4963 4964 4965 4966 4967 4968 4969 4970 4971 4972 4973 4974 4975 4976 4977 4978 4979 4980 4981 4982 4983 4984 4985 4986 4987 4988 4989 | offset += sizeof(int); SQLiteMarshal.WriteIntPtr(pVtab, offset, IntPtr.Zero); } /////////////////////////////////////////////////////////////////////// protected virtual void FreeTable( IntPtr pVtab ) { SetTableError(pVtab, null); SQLiteMemory.Free(pVtab); } #endregion /////////////////////////////////////////////////////////////////////// #region Native Cursor Helper Methods protected virtual IntPtr AllocateCursor() { int size = Marshal.SizeOf(typeof( UnsafeNativeMethods.sqlite3_vtab_cursor)); return SQLiteMemory.Allocate(size); } /////////////////////////////////////////////////////////////////////// protected virtual void FreeCursor( IntPtr pCursor ) { SQLiteMemory.Free(pCursor); } #endregion /////////////////////////////////////////////////////////////////////// #region Static Table Lookup Methods private static IntPtr TableFromCursor( SQLiteModule module, IntPtr pCursor ) { if (pCursor == IntPtr.Zero) return IntPtr.Zero; return Marshal.ReadIntPtr(pCursor); } #endregion /////////////////////////////////////////////////////////////////////// #region Table Lookup Methods protected virtual IntPtr TableFromCursor( IntPtr pCursor ) { return TableFromCursor(this, pCursor); } /////////////////////////////////////////////////////////////////////// protected virtual SQLiteVirtualTable TableFromIntPtr( IntPtr pVtab ) { if (pVtab == IntPtr.Zero) { SetTableError(pVtab, "invalid native table"); | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 5169 5170 5171 5172 5173 5174 5175 5176 5177 5178 5179 5180 5181 5182 5183 5184 5185 5186 5187 5188 5189 5190 5191 5192 5193 5194 5195 5196 5197 5198 5199 5200 5201 5202 5203 5204 5205 5206 5207 5208 5209 5210 5211 5212 5213 5214 5215 5216 5217 5218 5219 5220 5221 5222 5223 5224 5225 5226 5227 5228 5229 5230 5231 5232 5233 5234 5235 5236 5237 5238 5239 5240 5241 5242 5243 5244 5245 5246 5247 5248 5249 5250 5251 5252 5253 5254 5255 5256 5257 5258 5259 5260 5261 5262 5263 5264 5265 5266 5267 5268 5269 5270 5271 5272 5273 5274 5275 5276 5277 5278 5279 5280 5281 5282 5283 5284 5285 5286 5287 5288 5289 5290 5291 5292 5293 5294 5295 5296 5297 5298 5299 5300 5301 5302 5303 | offset += sizeof(int); SQLiteMarshal.WriteIntPtr(pVtab, offset, IntPtr.Zero); } /////////////////////////////////////////////////////////////////////// /// <summary> /// Frees a native sqlite3_vtab structure using the provided native /// pointer to it. /// </summary> /// <param name="pVtab"> /// A native pointer to a native sqlite3_vtab derived structure. /// </param> protected virtual void FreeTable( IntPtr pVtab ) { SetTableError(pVtab, null); SQLiteMemory.Free(pVtab); } #endregion /////////////////////////////////////////////////////////////////////// #region Native Cursor Helper Methods /// <summary> /// Allocates a native sqlite3_vtab_cursor derived structure and /// returns a native pointer to it. /// </summary> /// <returns> /// A native pointer to a native sqlite3_vtab_cursor derived structure. /// </returns> protected virtual IntPtr AllocateCursor() { int size = Marshal.SizeOf(typeof( UnsafeNativeMethods.sqlite3_vtab_cursor)); return SQLiteMemory.Allocate(size); } /////////////////////////////////////////////////////////////////////// /// <summary> /// Frees a native sqlite3_vtab_cursor structure using the provided /// native pointer to it. /// </summary> /// <param name="pCursor"> /// A native pointer to a native sqlite3_vtab_cursor derived structure. /// </param> protected virtual void FreeCursor( IntPtr pCursor ) { SQLiteMemory.Free(pCursor); } #endregion /////////////////////////////////////////////////////////////////////// #region Static Table Lookup Methods /// <summary> /// Reads and returns the native pointer to the sqlite3_vtab derived /// structure based on the native pointer to the sqlite3_vtab_cursor /// derived structure. /// </summary> /// <param name="module"> /// The <see cref="SQLiteModule" /> object instance to be used. /// </param> /// <param name="pCursor"> /// The native pointer to the sqlite3_vtab_cursor derived structure /// from which to read the native pointer to the sqlite3_vtab derived /// structure. /// </param> /// <returns> /// The native pointer to the sqlite3_vtab derived structure -OR- /// <see cref="IntPtr.Zero"/> if it cannot be determined. /// </returns> private static IntPtr TableFromCursor( SQLiteModule module, IntPtr pCursor ) { if (pCursor == IntPtr.Zero) return IntPtr.Zero; return Marshal.ReadIntPtr(pCursor); } #endregion /////////////////////////////////////////////////////////////////////// #region Table Lookup Methods /// <summary> /// Reads and returns the native pointer to the sqlite3_vtab derived /// structure based on the native pointer to the sqlite3_vtab_cursor /// derived structure. /// </summary> /// <param name="pCursor"> /// The native pointer to the sqlite3_vtab_cursor derived structure /// from which to read the native pointer to the sqlite3_vtab derived /// structure. /// </param> /// <returns> /// The native pointer to the sqlite3_vtab derived structure -OR- /// <see cref="IntPtr.Zero"/> if it cannot be determined. /// </returns> protected virtual IntPtr TableFromCursor( IntPtr pCursor ) { return TableFromCursor(this, pCursor); } /////////////////////////////////////////////////////////////////////// /// <summary> /// Looks up and returns the <see cref="SQLiteVirtualTable" /> object /// instance based on the native pointer to the sqlite3_vtab derived /// structure. /// </summary> /// <param name="pVtab"> /// The native pointer to the sqlite3_vtab derived structure. /// </param> /// <returns> /// The <see cref="SQLiteVirtualTable" /> object instance or null if /// the corresponding one cannot be found. /// </returns> protected virtual SQLiteVirtualTable TableFromIntPtr( IntPtr pVtab ) { if (pVtab == IntPtr.Zero) { SetTableError(pVtab, "invalid native table"); |
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5003 5004 5005 5006 5007 5008 5009 5010 5011 5012 5013 5014 5015 5016 | "managed table for {0} not found", pVtab)); return null; } /////////////////////////////////////////////////////////////////////// protected virtual IntPtr TableToIntPtr( SQLiteVirtualTable table ) { if ((table == null) || (tables == null)) return IntPtr.Zero; | > > > > > > > > > > > > > | 5317 5318 5319 5320 5321 5322 5323 5324 5325 5326 5327 5328 5329 5330 5331 5332 5333 5334 5335 5336 5337 5338 5339 5340 5341 5342 5343 | "managed table for {0} not found", pVtab)); return null; } /////////////////////////////////////////////////////////////////////// /// <summary> /// Allocates and returns a native pointer to a sqlite3_vtab derived /// structure and creates an association between it and the specified /// <see cref="SQLiteVirtualTable" /> object instance. /// </summary> /// <param name="table"> /// The <see cref="SQLiteVirtualTable" /> object instance to be used /// when creating the association. /// </param> /// <returns> /// The native pointer to a sqlite3_vtab derived structure or /// <see cref="IntPtr.Zero"/> if the method fails for any reason. /// </returns> protected virtual IntPtr TableToIntPtr( SQLiteVirtualTable table ) { if ((table == null) || (tables == null)) return IntPtr.Zero; |
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5041 5042 5043 5044 5045 5046 5047 5048 5049 5050 5051 5052 5053 5054 | return pVtab; } #endregion /////////////////////////////////////////////////////////////////////// #region Cursor Lookup Methods protected virtual SQLiteVirtualTableCursor CursorFromIntPtr( IntPtr pVtab, IntPtr pCursor ) { if (pCursor == IntPtr.Zero) { | > > > > > > > > > > > > > > > | 5368 5369 5370 5371 5372 5373 5374 5375 5376 5377 5378 5379 5380 5381 5382 5383 5384 5385 5386 5387 5388 5389 5390 5391 5392 5393 5394 5395 5396 | return pVtab; } #endregion /////////////////////////////////////////////////////////////////////// #region Cursor Lookup Methods /// <summary> /// Looks up and returns the <see cref="SQLiteVirtualTableCursor" /> /// object instance based on the native pointer to the /// sqlite3_vtab_cursor derived structure. /// </summary> /// <param name="pVtab"> /// The native pointer to the sqlite3_vtab derived structure. /// </param> /// <param name="pCursor"> /// The native pointer to the sqlite3_vtab_cursor derived structure. /// </param> /// <returns> /// The <see cref="SQLiteVirtualTableCursor" /> object instance or null /// if the corresponding one cannot be found. /// </returns> protected virtual SQLiteVirtualTableCursor CursorFromIntPtr( IntPtr pVtab, IntPtr pCursor ) { if (pCursor == IntPtr.Zero) { |
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5069 5070 5071 5072 5073 5074 5075 5076 5077 5078 5079 5080 5081 5082 | "managed cursor for {0} not found", pCursor)); return null; } /////////////////////////////////////////////////////////////////////// protected virtual IntPtr CursorToIntPtr( SQLiteVirtualTableCursor cursor ) { if ((cursor == null) || (cursors == null)) return IntPtr.Zero; | > > > > > > > > > > > > > | 5411 5412 5413 5414 5415 5416 5417 5418 5419 5420 5421 5422 5423 5424 5425 5426 5427 5428 5429 5430 5431 5432 5433 5434 5435 5436 5437 | "managed cursor for {0} not found", pCursor)); return null; } /////////////////////////////////////////////////////////////////////// /// <summary> /// Allocates and returns a native pointer to a sqlite3_vtab_cursor /// derived structure and creates an association between it and the /// specified <see cref="SQLiteVirtualTableCursor" /> object instance. /// </summary> /// <param name="cursor"> /// The <see cref="SQLiteVirtualTableCursor" /> object instance to be /// used when creating the association. /// </param> /// <returns> /// The native pointer to a sqlite3_vtab_cursor derived structure or /// <see cref="IntPtr.Zero"/> if the method fails for any reason. /// </returns> protected virtual IntPtr CursorToIntPtr( SQLiteVirtualTableCursor cursor ) { if ((cursor == null) || (cursors == null)) return IntPtr.Zero; |
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5106 5107 5108 5109 5110 5111 5112 5113 5114 5115 5116 5117 5118 5119 | return pCursor; } #endregion /////////////////////////////////////////////////////////////////////// #region Table Declaration Helper Methods protected virtual SQLiteErrorCode DeclareTable( SQLiteConnection connection, string sql, ref string error ) { if (connection == null) | > > > > > > > > > > > > > > > > > > > | 5461 5462 5463 5464 5465 5466 5467 5468 5469 5470 5471 5472 5473 5474 5475 5476 5477 5478 5479 5480 5481 5482 5483 5484 5485 5486 5487 5488 5489 5490 5491 5492 5493 | return pCursor; } #endregion /////////////////////////////////////////////////////////////////////// #region Table Declaration Helper Methods /// <summary> /// Attempts to declare the schema for the virtual table using the /// specified database connection. /// </summary> /// <param name="connection"> /// The <see cref="SQLiteConnection" /> object instance to use when /// declaring the schema of the virtual table. /// </param> /// <param name="sql"> /// The string containing the CREATE TABLE statement that completely /// describes the schema for the virtual table. /// </param> /// <param name="error"> /// Upon failure, this parameter must be modified to contain an error /// message. /// </param> /// <returns> /// A standard SQLite return code. /// </returns> protected virtual SQLiteErrorCode DeclareTable( SQLiteConnection connection, string sql, ref string error ) { if (connection == null) |
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5133 5134 5135 5136 5137 5138 5139 5140 5141 5142 5143 5144 5145 5146 5147 5148 5149 5150 5151 5152 5153 5154 5155 5156 5157 5158 5159 5160 5161 5162 5163 5164 5165 5166 5167 5168 5169 5170 5171 5172 5173 5174 5175 5176 5177 5178 | return sqliteBase.DeclareVirtualTable(this, sql, ref error); } #endregion /////////////////////////////////////////////////////////////////////// #region Error Handling Helper Methods protected virtual bool SetTableError( IntPtr pVtab, string error ) { return SetTableError(this, pVtab, LogErrors, error); } /////////////////////////////////////////////////////////////////////// protected virtual bool SetTableError( SQLiteVirtualTable table, string error ) { return SetTableError(this, table, LogErrors, error); } /////////////////////////////////////////////////////////////////////// protected virtual bool SetCursorError( SQLiteVirtualTableCursor cursor, string error ) { return SetCursorError(this, cursor, LogErrors, error); } #endregion /////////////////////////////////////////////////////////////////////// #region Static Error Handling Helper Methods private static bool SetTableError( SQLiteModule module, IntPtr pVtab, bool logErrors, string error ) { | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 5507 5508 5509 5510 5511 5512 5513 5514 5515 5516 5517 5518 5519 5520 5521 5522 5523 5524 5525 5526 5527 5528 5529 5530 5531 5532 5533 5534 5535 5536 5537 5538 5539 5540 5541 5542 5543 5544 5545 5546 5547 5548 5549 5550 5551 5552 5553 5554 5555 5556 5557 5558 5559 5560 5561 5562 5563 5564 5565 5566 5567 5568 5569 5570 5571 5572 5573 5574 5575 5576 5577 5578 5579 5580 5581 5582 5583 5584 5585 5586 5587 5588 5589 5590 5591 5592 5593 5594 5595 5596 5597 5598 5599 5600 5601 5602 5603 5604 5605 5606 5607 5608 5609 5610 5611 5612 5613 5614 5615 5616 5617 | return sqliteBase.DeclareVirtualTable(this, sql, ref error); } #endregion /////////////////////////////////////////////////////////////////////// #region Error Handling Helper Methods /// <summary> /// Arranges for the specified error message to be placed into the /// zErrMsg field of a sqlite3_vtab derived structure, freeing the /// existing error message, if any. /// </summary> /// <param name="pVtab"> /// The native pointer to the sqlite3_vtab derived structure. /// </param> /// <param name="error"> /// The error message. /// </param> /// <returns> /// Non-zero upon success. /// </returns> protected virtual bool SetTableError( IntPtr pVtab, string error ) { return SetTableError(this, pVtab, LogErrors, error); } /////////////////////////////////////////////////////////////////////// /// <summary> /// Arranges for the specified error message to be placed into the /// zErrMsg field of a sqlite3_vtab derived structure, freeing the /// existing error message, if any. /// </summary> /// <param name="table"> /// The <see cref="SQLiteVirtualTable" /> object instance used to /// lookup the native pointer to the sqlite3_vtab derived structure. /// </param> /// <param name="error"> /// The error message. /// </param> /// <returns> /// Non-zero upon success. /// </returns> protected virtual bool SetTableError( SQLiteVirtualTable table, string error ) { return SetTableError(this, table, LogErrors, error); } /////////////////////////////////////////////////////////////////////// /// <summary> /// Arranges for the specified error message to be placed into the /// zErrMsg field of a sqlite3_vtab derived structure, freeing the /// existing error message, if any. /// </summary> /// <param name="cursor"> /// The <see cref="SQLiteVirtualTableCursor" /> object instance used to /// lookup the native pointer to the sqlite3_vtab derived structure. /// </param> /// <param name="error"> /// The error message. /// </param> /// <returns> /// Non-zero upon success. /// </returns> protected virtual bool SetCursorError( SQLiteVirtualTableCursor cursor, string error ) { return SetCursorError(this, cursor, LogErrors, error); } #endregion /////////////////////////////////////////////////////////////////////// #region Static Error Handling Helper Methods /// <summary> /// Arranges for the specified error message to be placed into the /// zErrMsg field of a sqlite3_vtab derived structure, freeing the /// existing error message, if any. /// </summary> /// <param name="module"> /// The <see cref="SQLiteModule" /> object instance to be used. /// </param> /// <param name="pVtab"> /// The native pointer to the sqlite3_vtab derived structure. /// </param> /// <param name="logErrors"> /// Non-zero if this error message should also be logged using the /// <see cref="SQLiteLog" /> class. /// </param> /// <param name="error"> /// The error message. /// </param> /// <returns> /// Non-zero upon success. /// </returns> private static bool SetTableError( SQLiteModule module, IntPtr pVtab, bool logErrors, string error ) { |
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5223 5224 5225 5226 5227 5228 5229 5230 5231 5232 5233 5234 5235 5236 5237 5238 5239 5240 5241 5242 5243 5244 5245 5246 5247 5248 5249 5250 5251 5252 5253 5254 5255 5256 5257 5258 5259 5260 5261 5262 5263 5264 5265 5266 5267 5268 5269 5270 5271 5272 5273 5274 5275 5276 | } return success; } /////////////////////////////////////////////////////////////////////// private static bool SetTableError( SQLiteModule module, SQLiteVirtualTable table, bool logErrors, string error ) { if (table == null) return false; IntPtr pVtab = table.NativeHandle; if (pVtab == IntPtr.Zero) return false; return SetTableError(module, pVtab, logErrors, error); } /////////////////////////////////////////////////////////////////////// private static bool SetCursorError( SQLiteModule module, IntPtr pCursor, bool logErrors, string error ) { if (pCursor == IntPtr.Zero) return false; IntPtr pVtab = TableFromCursor(module, pCursor); if (pVtab == IntPtr.Zero) return false; return SetTableError(module, pVtab, logErrors, error); } /////////////////////////////////////////////////////////////////////// private static bool SetCursorError( SQLiteModule module, SQLiteVirtualTableCursor cursor, bool logErrors, string error ) { | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 5662 5663 5664 5665 5666 5667 5668 5669 5670 5671 5672 5673 5674 5675 5676 5677 5678 5679 5680 5681 5682 5683 5684 5685 5686 5687 5688 5689 5690 5691 5692 5693 5694 5695 5696 5697 5698 5699 5700 5701 5702 5703 5704 5705 5706 5707 5708 5709 5710 5711 5712 5713 5714 5715 5716 5717 5718 5719 5720 5721 5722 5723 5724 5725 5726 5727 5728 5729 5730 5731 5732 5733 5734 5735 5736 5737 5738 5739 5740 5741 5742 5743 5744 5745 5746 5747 5748 5749 5750 5751 5752 5753 5754 5755 5756 5757 5758 5759 5760 5761 5762 5763 5764 5765 5766 5767 5768 5769 5770 5771 5772 5773 5774 5775 5776 5777 5778 5779 5780 5781 5782 | } return success; } /////////////////////////////////////////////////////////////////////// /// <summary> /// Arranges for the specified error message to be placed into the /// zErrMsg field of a sqlite3_vtab derived structure, freeing the /// existing error message, if any. /// </summary> /// <param name="module"> /// The <see cref="SQLiteModule" /> object instance to be used. /// </param> /// <param name="table"> /// The <see cref="SQLiteVirtualTable" /> object instance used to /// lookup the native pointer to the sqlite3_vtab derived structure. /// </param> /// <param name="logErrors"> /// Non-zero if this error message should also be logged using the /// <see cref="SQLiteLog" /> class. /// </param> /// <param name="error"> /// The error message. /// </param> /// <returns> /// Non-zero upon success. /// </returns> private static bool SetTableError( SQLiteModule module, SQLiteVirtualTable table, bool logErrors, string error ) { if (table == null) return false; IntPtr pVtab = table.NativeHandle; if (pVtab == IntPtr.Zero) return false; return SetTableError(module, pVtab, logErrors, error); } /////////////////////////////////////////////////////////////////////// /// <summary> /// Arranges for the specified error message to be placed into the /// zErrMsg field of a sqlite3_vtab derived structure, freeing the /// existing error message, if any. /// </summary> /// <param name="module"> /// The <see cref="SQLiteModule" /> object instance to be used. /// </param> /// <param name="pCursor"> /// The native pointer to the sqlite3_vtab_cursor derived structure /// used to get the native pointer to the sqlite3_vtab derived /// structure. /// </param> /// <param name="logErrors"> /// Non-zero if this error message should also be logged using the /// <see cref="SQLiteLog" /> class. /// </param> /// <param name="error"> /// The error message. /// </param> /// <returns> /// Non-zero upon success. /// </returns> private static bool SetCursorError( SQLiteModule module, IntPtr pCursor, bool logErrors, string error ) { if (pCursor == IntPtr.Zero) return false; IntPtr pVtab = TableFromCursor(module, pCursor); if (pVtab == IntPtr.Zero) return false; return SetTableError(module, pVtab, logErrors, error); } /////////////////////////////////////////////////////////////////////// /// <summary> /// Arranges for the specified error message to be placed into the /// zErrMsg field of a sqlite3_vtab derived structure, freeing the /// existing error message, if any. /// </summary> /// <param name="module"> /// The <see cref="SQLiteModule" /> object instance to be used. /// </param> /// <param name="cursor"> /// The <see cref="SQLiteVirtualTableCursor" /> object instance used to /// lookup the native pointer to the sqlite3_vtab derived structure. /// </param> /// <param name="logErrors"> /// Non-zero if this error message should also be logged using the /// <see cref="SQLiteLog" /> class. /// </param> /// <param name="error"> /// The error message. /// </param> /// <returns> /// Non-zero upon success. /// </returns> private static bool SetCursorError( SQLiteModule module, SQLiteVirtualTableCursor cursor, bool logErrors, string error ) { |
︙ | ︙ | |||
5285 5286 5287 5288 5289 5290 5291 5292 5293 5294 5295 5296 5297 5298 5299 5300 5301 5302 5303 5304 5305 5306 5307 5308 5309 | return SetCursorError(module, pCursor, logErrors, error); } #endregion /////////////////////////////////////////////////////////////////////// #region Index Handling Helper Methods protected virtual bool SetEstimatedCost( SQLiteIndex index, double estimatedCost ) { if ((index == null) || (index.Outputs == null)) return false; index.Outputs.EstimatedCost = estimatedCost; return true; } /////////////////////////////////////////////////////////////////////// protected virtual bool SetEstimatedCost( SQLiteIndex index ) { | > > > > > > > > > > > > > > > > > > > > > > > | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 5791 5792 5793 5794 5795 5796 5797 5798 5799 5800 5801 5802 5803 5804 5805 5806 5807 5808 5809 5810 5811 5812 5813 5814 5815 5816 5817 5818 5819 5820 5821 5822 5823 5824 5825 5826 5827 5828 5829 5830 5831 5832 5833 5834 5835 5836 5837 5838 5839 5840 5841 5842 5843 5844 5845 5846 5847 5848 5849 5850 5851 5852 5853 5854 5855 5856 5857 5858 5859 5860 5861 5862 5863 5864 5865 5866 5867 5868 5869 5870 5871 5872 5873 5874 5875 5876 5877 5878 5879 5880 5881 5882 5883 5884 5885 5886 5887 5888 5889 5890 5891 5892 5893 5894 5895 5896 5897 5898 5899 5900 5901 5902 5903 5904 5905 5906 5907 5908 5909 | return SetCursorError(module, pCursor, logErrors, error); } #endregion /////////////////////////////////////////////////////////////////////// #region Index Handling Helper Methods /// <summary> /// Modifies the specified <see cref="SQLiteIndex" /> object instance /// to contain the specified estimated cost. /// </summary> /// <param name="index"> /// The <see cref="SQLiteIndex" /> object instance to modify. /// </param> /// <param name="estimatedCost"> /// The estimated cost value to use. /// </param> /// <returns> /// Non-zero upon success. /// </returns> protected virtual bool SetEstimatedCost( SQLiteIndex index, double estimatedCost ) { if ((index == null) || (index.Outputs == null)) return false; index.Outputs.EstimatedCost = estimatedCost; return true; } /////////////////////////////////////////////////////////////////////// /// <summary> /// Modifies the specified <see cref="SQLiteIndex" /> object instance /// to contain the default estimated cost. /// </summary> /// <param name="index"> /// The <see cref="SQLiteIndex" /> object instance to modify. /// </param> /// <returns> /// Non-zero upon success. /// </returns> protected virtual bool SetEstimatedCost( SQLiteIndex index ) { return SetEstimatedCost(index, DefaultEstimatedCost); } #endregion #endregion /////////////////////////////////////////////////////////////////////// #region Public Properties private bool logErrors; /// <summary> /// Returns or sets a boolean value indicating whether virtual table /// errors should be logged using the <see cref="SQLiteLog" /> class. /// </summary> public virtual bool LogErrors { get { CheckDisposed(); return logErrors; } set { CheckDisposed(); logErrors = value; } } /////////////////////////////////////////////////////////////////////// private bool logExceptions; /// <summary> /// Returns or sets a boolean value indicating whether exceptions /// caught in the /// <see cref="ISQLiteNativeModule.xDisconnect" /> method, /// <see cref="ISQLiteNativeModule.xDestroy" /> method, and the /// <see cref="Dispose()" /> method should be logged using the /// <see cref="SQLiteLog" /> class. /// </summary> public virtual bool LogExceptions { get { CheckDisposed(); return logExceptions; } set { CheckDisposed(); logExceptions = value; } } #endregion /////////////////////////////////////////////////////////////////////// #region ISQLiteNativeModule Members /// <summary> /// See the <see cref="ISQLiteNativeModule.xCreate" /> method. /// </summary> /// <param name="pDb"> /// See the <see cref="ISQLiteNativeModule.xCreate" /> method. /// </param> /// <param name="pAux"> /// See the <see cref="ISQLiteNativeModule.xCreate" /> method. /// </param> /// <param name="argc"> /// See the <see cref="ISQLiteNativeModule.xCreate" /> method. /// </param> /// <param name="argv"> /// See the <see cref="ISQLiteNativeModule.xCreate" /> method. /// </param> /// <param name="pVtab"> /// See the <see cref="ISQLiteNativeModule.xCreate" /> method. /// </param> /// <param name="pError"> /// See the <see cref="ISQLiteNativeModule.xCreate" /> method. /// </param> /// <returns> /// See the <see cref="ISQLiteNativeModule.xCreate" /> method. /// </returns> private SQLiteErrorCode xCreate( IntPtr pDb, IntPtr pAux, int argc, IntPtr[] argv, ref IntPtr pVtab, ref IntPtr pError |
︙ | ︙ | |||
5382 5383 5384 5385 5386 5387 5388 5389 5390 5391 5392 5393 5394 5395 | } return SQLiteErrorCode.Error; } /////////////////////////////////////////////////////////////////////// private SQLiteErrorCode xConnect( IntPtr pDb, IntPtr pAux, int argc, IntPtr[] argv, ref IntPtr pVtab, ref IntPtr pError | > > > > > > > > > > > > > > > > > > > > > > > > | 5947 5948 5949 5950 5951 5952 5953 5954 5955 5956 5957 5958 5959 5960 5961 5962 5963 5964 5965 5966 5967 5968 5969 5970 5971 5972 5973 5974 5975 5976 5977 5978 5979 5980 5981 5982 5983 5984 | } return SQLiteErrorCode.Error; } /////////////////////////////////////////////////////////////////////// /// <summary> /// See the <see cref="ISQLiteNativeModule.xConnect" /> method. /// </summary> /// <param name="pDb"> /// See the <see cref="ISQLiteNativeModule.xConnect" /> method. /// </param> /// <param name="pAux"> /// See the <see cref="ISQLiteNativeModule.xConnect" /> method. /// </param> /// <param name="argc"> /// See the <see cref="ISQLiteNativeModule.xConnect" /> method. /// </param> /// <param name="argv"> /// See the <see cref="ISQLiteNativeModule.xConnect" /> method. /// </param> /// <param name="pVtab"> /// See the <see cref="ISQLiteNativeModule.xConnect" /> method. /// </param> /// <param name="pError"> /// See the <see cref="ISQLiteNativeModule.xConnect" /> method. /// </param> /// <returns> /// See the <see cref="ISQLiteNativeModule.xConnect" /> method. /// </returns> private SQLiteErrorCode xConnect( IntPtr pDb, IntPtr pAux, int argc, IntPtr[] argv, ref IntPtr pVtab, ref IntPtr pError |
︙ | ︙ | |||
5433 5434 5435 5436 5437 5438 5439 5440 5441 5442 5443 5444 5445 5446 | } return SQLiteErrorCode.Error; } /////////////////////////////////////////////////////////////////////// private SQLiteErrorCode xBestIndex( IntPtr pVtab, IntPtr pIndex ) { try { | > > > > > > > > > > > > | 6022 6023 6024 6025 6026 6027 6028 6029 6030 6031 6032 6033 6034 6035 6036 6037 6038 6039 6040 6041 6042 6043 6044 6045 6046 6047 | } return SQLiteErrorCode.Error; } /////////////////////////////////////////////////////////////////////// /// <summary> /// See the <see cref="ISQLiteNativeModule.xBestIndex" /> method. /// </summary> /// <param name="pVtab"> /// See the <see cref="ISQLiteNativeModule.xBestIndex" /> method. /// </param> /// <param name="pIndex"> /// See the <see cref="ISQLiteNativeModule.xBestIndex" /> method. /// </param> /// <returns> /// See the <see cref="ISQLiteNativeModule.xBestIndex" /> method. /// </returns> private SQLiteErrorCode xBestIndex( IntPtr pVtab, IntPtr pIndex ) { try { |
︙ | ︙ | |||
5465 5466 5467 5468 5469 5470 5471 5472 5473 5474 5475 5476 5477 5478 | } return SQLiteErrorCode.Error; } /////////////////////////////////////////////////////////////////////// private SQLiteErrorCode xDisconnect( IntPtr pVtab ) { try { SQLiteVirtualTable table = TableFromIntPtr(pVtab); | > > > > > > > > > | 6066 6067 6068 6069 6070 6071 6072 6073 6074 6075 6076 6077 6078 6079 6080 6081 6082 6083 6084 6085 6086 6087 6088 | } return SQLiteErrorCode.Error; } /////////////////////////////////////////////////////////////////////// /// <summary> /// See the <see cref="ISQLiteNativeModule.xDisconnect" /> method. /// </summary> /// <param name="pVtab"> /// See the <see cref="ISQLiteNativeModule.xDisconnect" /> method. /// </param> /// <returns> /// See the <see cref="ISQLiteNativeModule.xDisconnect" /> method. /// </returns> private SQLiteErrorCode xDisconnect( IntPtr pVtab ) { try { SQLiteVirtualTable table = TableFromIntPtr(pVtab); |
︙ | ︙ | |||
5516 5517 5518 5519 5520 5521 5522 5523 5524 5525 5526 5527 5528 5529 | } return SQLiteErrorCode.Error; } /////////////////////////////////////////////////////////////////////// private SQLiteErrorCode xDestroy( IntPtr pVtab ) { try { SQLiteVirtualTable table = TableFromIntPtr(pVtab); | > > > > > > > > > | 6126 6127 6128 6129 6130 6131 6132 6133 6134 6135 6136 6137 6138 6139 6140 6141 6142 6143 6144 6145 6146 6147 6148 | } return SQLiteErrorCode.Error; } /////////////////////////////////////////////////////////////////////// /// <summary> /// See the <see cref="ISQLiteNativeModule.xDestroy" /> method. /// </summary> /// <param name="pVtab"> /// See the <see cref="ISQLiteNativeModule.xDestroy" /> method. /// </param> /// <returns> /// See the <see cref="ISQLiteNativeModule.xDestroy" /> method. /// </returns> private SQLiteErrorCode xDestroy( IntPtr pVtab ) { try { SQLiteVirtualTable table = TableFromIntPtr(pVtab); |
︙ | ︙ | |||
5567 5568 5569 5570 5571 5572 5573 5574 5575 5576 5577 5578 5579 5580 | } return SQLiteErrorCode.Error; } /////////////////////////////////////////////////////////////////////// private SQLiteErrorCode xOpen( IntPtr pVtab, ref IntPtr pCursor ) { try { | > > > > > > > > > > > > | 6186 6187 6188 6189 6190 6191 6192 6193 6194 6195 6196 6197 6198 6199 6200 6201 6202 6203 6204 6205 6206 6207 6208 6209 6210 6211 | } return SQLiteErrorCode.Error; } /////////////////////////////////////////////////////////////////////// /// <summary> /// See the <see cref="ISQLiteNativeModule.xOpen" /> method. /// </summary> /// <param name="pVtab"> /// See the <see cref="ISQLiteNativeModule.xOpen" /> method. /// </param> /// <param name="pCursor"> /// See the <see cref="ISQLiteNativeModule.xOpen" /> method. /// </param> /// <returns> /// See the <see cref="ISQLiteNativeModule.xOpen" /> method. /// </returns> private SQLiteErrorCode xOpen( IntPtr pVtab, ref IntPtr pCursor ) { try { |
︙ | ︙ | |||
5614 5615 5616 5617 5618 5619 5620 5621 5622 5623 5624 5625 5626 5627 | } return SQLiteErrorCode.Error; } /////////////////////////////////////////////////////////////////////// private SQLiteErrorCode xClose( IntPtr pCursor ) { IntPtr pVtab = IntPtr.Zero; try | > > > > > > > > > | 6245 6246 6247 6248 6249 6250 6251 6252 6253 6254 6255 6256 6257 6258 6259 6260 6261 6262 6263 6264 6265 6266 6267 | } return SQLiteErrorCode.Error; } /////////////////////////////////////////////////////////////////////// /// <summary> /// See the <see cref="ISQLiteNativeModule.xClose" /> method. /// </summary> /// <param name="pCursor"> /// See the <see cref="ISQLiteNativeModule.xClose" /> method. /// </param> /// <returns> /// See the <see cref="ISQLiteNativeModule.xClose" /> method. /// </returns> private SQLiteErrorCode xClose( IntPtr pCursor ) { IntPtr pVtab = IntPtr.Zero; try |
︙ | ︙ | |||
5652 5653 5654 5655 5656 5657 5658 5659 5660 5661 5662 5663 5664 5665 | } return SQLiteErrorCode.Error; } /////////////////////////////////////////////////////////////////////// private SQLiteErrorCode xFilter( IntPtr pCursor, int idxNum, IntPtr idxStr, int argc, IntPtr[] argv ) | > > > > > > > > > > > > > > > > > > > > > | 6292 6293 6294 6295 6296 6297 6298 6299 6300 6301 6302 6303 6304 6305 6306 6307 6308 6309 6310 6311 6312 6313 6314 6315 6316 6317 6318 6319 6320 6321 6322 6323 6324 6325 6326 | } return SQLiteErrorCode.Error; } /////////////////////////////////////////////////////////////////////// /// <summary> /// See the <see cref="ISQLiteNativeModule.xFilter" /> method. /// </summary> /// <param name="pCursor"> /// See the <see cref="ISQLiteNativeModule.xFilter" /> method. /// </param> /// <param name="idxNum"> /// See the <see cref="ISQLiteNativeModule.xFilter" /> method. /// </param> /// <param name="idxStr"> /// See the <see cref="ISQLiteNativeModule.xFilter" /> method. /// </param> /// <param name="argc"> /// See the <see cref="ISQLiteNativeModule.xFilter" /> method. /// </param> /// <param name="argv"> /// See the <see cref="ISQLiteNativeModule.xFilter" /> method. /// </param> /// <returns> /// See the <see cref="ISQLiteNativeModule.xFilter" /> method. /// </returns> private SQLiteErrorCode xFilter( IntPtr pCursor, int idxNum, IntPtr idxStr, int argc, IntPtr[] argv ) |
︙ | ︙ | |||
5690 5691 5692 5693 5694 5695 5696 5697 5698 5699 5700 5701 5702 5703 | } return SQLiteErrorCode.Error; } /////////////////////////////////////////////////////////////////////// private SQLiteErrorCode xNext( IntPtr pCursor ) { IntPtr pVtab = IntPtr.Zero; try | > > > > > > > > > | 6351 6352 6353 6354 6355 6356 6357 6358 6359 6360 6361 6362 6363 6364 6365 6366 6367 6368 6369 6370 6371 6372 6373 | } return SQLiteErrorCode.Error; } /////////////////////////////////////////////////////////////////////// /// <summary> /// See the <see cref="ISQLiteNativeModule.xNext" /> method. /// </summary> /// <param name="pCursor"> /// See the <see cref="ISQLiteNativeModule.xNext" /> method. /// </param> /// <returns> /// See the <see cref="ISQLiteNativeModule.xNext" /> method. /// </returns> private SQLiteErrorCode xNext( IntPtr pCursor ) { IntPtr pVtab = IntPtr.Zero; try |
︙ | ︙ | |||
5719 5720 5721 5722 5723 5724 5725 5726 5727 5728 5729 5730 5731 5732 | } return SQLiteErrorCode.Error; } /////////////////////////////////////////////////////////////////////// private int xEof( IntPtr pCursor ) { IntPtr pVtab = IntPtr.Zero; try | > > > > > > > > > | 6389 6390 6391 6392 6393 6394 6395 6396 6397 6398 6399 6400 6401 6402 6403 6404 6405 6406 6407 6408 6409 6410 6411 | } return SQLiteErrorCode.Error; } /////////////////////////////////////////////////////////////////////// /// <summary> /// See the <see cref="ISQLiteNativeModule.xEof" /> method. /// </summary> /// <param name="pCursor"> /// See the <see cref="ISQLiteNativeModule.xEof" /> method. /// </param> /// <returns> /// See the <see cref="ISQLiteNativeModule.xEof" /> method. /// </returns> private int xEof( IntPtr pCursor ) { IntPtr pVtab = IntPtr.Zero; try |
︙ | ︙ | |||
5745 5746 5747 5748 5749 5750 5751 5752 5753 5754 5755 5756 5757 5758 | } return 1; } /////////////////////////////////////////////////////////////////////// private SQLiteErrorCode xColumn( IntPtr pCursor, IntPtr pContext, int index ) { IntPtr pVtab = IntPtr.Zero; | > > > > > > > > > > > > > > > | 6424 6425 6426 6427 6428 6429 6430 6431 6432 6433 6434 6435 6436 6437 6438 6439 6440 6441 6442 6443 6444 6445 6446 6447 6448 6449 6450 6451 6452 | } return 1; } /////////////////////////////////////////////////////////////////////// /// <summary> /// See the <see cref="ISQLiteNativeModule.xColumn" /> method. /// </summary> /// <param name="pCursor"> /// See the <see cref="ISQLiteNativeModule.xColumn" /> method. /// </param> /// <param name="pContext"> /// See the <see cref="ISQLiteNativeModule.xColumn" /> method. /// </param> /// <param name="index"> /// See the <see cref="ISQLiteNativeModule.xColumn" /> method. /// </param> /// <returns> /// See the <see cref="ISQLiteNativeModule.xColumn" /> method. /// </returns> private SQLiteErrorCode xColumn( IntPtr pCursor, IntPtr pContext, int index ) { IntPtr pVtab = IntPtr.Zero; |
︙ | ︙ | |||
5777 5778 5779 5780 5781 5782 5783 5784 5785 5786 5787 5788 5789 5790 | } return SQLiteErrorCode.Error; } /////////////////////////////////////////////////////////////////////// private SQLiteErrorCode xRowId( IntPtr pCursor, ref long rowId ) { IntPtr pVtab = IntPtr.Zero; | > > > > > > > > > > > > | 6471 6472 6473 6474 6475 6476 6477 6478 6479 6480 6481 6482 6483 6484 6485 6486 6487 6488 6489 6490 6491 6492 6493 6494 6495 6496 | } return SQLiteErrorCode.Error; } /////////////////////////////////////////////////////////////////////// /// <summary> /// See the <see cref="ISQLiteNativeModule.xRowId" /> method. /// </summary> /// <param name="pCursor"> /// See the <see cref="ISQLiteNativeModule.xRowId" /> method. /// </param> /// <param name="rowId"> /// See the <see cref="ISQLiteNativeModule.xRowId" /> method. /// </param> /// <returns> /// See the <see cref="ISQLiteNativeModule.xRowId" /> method. /// </returns> private SQLiteErrorCode xRowId( IntPtr pCursor, ref long rowId ) { IntPtr pVtab = IntPtr.Zero; |
︙ | ︙ | |||
5804 5805 5806 5807 5808 5809 5810 5811 5812 5813 5814 5815 5816 5817 | } return SQLiteErrorCode.Error; } /////////////////////////////////////////////////////////////////////// private SQLiteErrorCode xUpdate( IntPtr pVtab, int argc, IntPtr[] argv, ref long rowId ) { | > > > > > > > > > > > > > > > > > > | 6510 6511 6512 6513 6514 6515 6516 6517 6518 6519 6520 6521 6522 6523 6524 6525 6526 6527 6528 6529 6530 6531 6532 6533 6534 6535 6536 6537 6538 6539 6540 6541 | } return SQLiteErrorCode.Error; } /////////////////////////////////////////////////////////////////////// /// <summary> /// See the <see cref="ISQLiteNativeModule.xUpdate" /> method. /// </summary> /// <param name="pVtab"> /// See the <see cref="ISQLiteNativeModule.xUpdate" /> method. /// </param> /// <param name="argc"> /// See the <see cref="ISQLiteNativeModule.xUpdate" /> method. /// </param> /// <param name="argv"> /// See the <see cref="ISQLiteNativeModule.xUpdate" /> method. /// </param> /// <param name="rowId"> /// See the <see cref="ISQLiteNativeModule.xUpdate" /> method. /// </param> /// <returns> /// See the <see cref="ISQLiteNativeModule.xUpdate" /> method. /// </returns> private SQLiteErrorCode xUpdate( IntPtr pVtab, int argc, IntPtr[] argv, ref long rowId ) { |
︙ | ︙ | |||
5832 5833 5834 5835 5836 5837 5838 5839 5840 5841 5842 5843 5844 5845 | } return SQLiteErrorCode.Error; } /////////////////////////////////////////////////////////////////////// private SQLiteErrorCode xBegin( IntPtr pVtab ) { try { SQLiteVirtualTable table = TableFromIntPtr(pVtab); | > > > > > > > > > | 6556 6557 6558 6559 6560 6561 6562 6563 6564 6565 6566 6567 6568 6569 6570 6571 6572 6573 6574 6575 6576 6577 6578 | } return SQLiteErrorCode.Error; } /////////////////////////////////////////////////////////////////////// /// <summary> /// See the <see cref="ISQLiteNativeModule.xBegin" /> method. /// </summary> /// <param name="pVtab"> /// See the <see cref="ISQLiteNativeModule.xBegin" /> method. /// </param> /// <returns> /// See the <see cref="ISQLiteNativeModule.xBegin" /> method. /// </returns> private SQLiteErrorCode xBegin( IntPtr pVtab ) { try { SQLiteVirtualTable table = TableFromIntPtr(pVtab); |
︙ | ︙ | |||
5853 5854 5855 5856 5857 5858 5859 5860 5861 5862 5863 5864 5865 5866 | } return SQLiteErrorCode.Error; } /////////////////////////////////////////////////////////////////////// private SQLiteErrorCode xSync( IntPtr pVtab ) { try { SQLiteVirtualTable table = TableFromIntPtr(pVtab); | > > > > > > > > > | 6586 6587 6588 6589 6590 6591 6592 6593 6594 6595 6596 6597 6598 6599 6600 6601 6602 6603 6604 6605 6606 6607 6608 | } return SQLiteErrorCode.Error; } /////////////////////////////////////////////////////////////////////// /// <summary> /// See the <see cref="ISQLiteNativeModule.xSync" /> method. /// </summary> /// <param name="pVtab"> /// See the <see cref="ISQLiteNativeModule.xSync" /> method. /// </param> /// <returns> /// See the <see cref="ISQLiteNativeModule.xSync" /> method. /// </returns> private SQLiteErrorCode xSync( IntPtr pVtab ) { try { SQLiteVirtualTable table = TableFromIntPtr(pVtab); |
︙ | ︙ | |||
5874 5875 5876 5877 5878 5879 5880 5881 5882 5883 5884 5885 5886 5887 | } return SQLiteErrorCode.Error; } /////////////////////////////////////////////////////////////////////// private SQLiteErrorCode xCommit( IntPtr pVtab ) { try { SQLiteVirtualTable table = TableFromIntPtr(pVtab); | > > > > > > > > > | 6616 6617 6618 6619 6620 6621 6622 6623 6624 6625 6626 6627 6628 6629 6630 6631 6632 6633 6634 6635 6636 6637 6638 | } return SQLiteErrorCode.Error; } /////////////////////////////////////////////////////////////////////// /// <summary> /// See the <see cref="ISQLiteNativeModule.xCommit" /> method. /// </summary> /// <param name="pVtab"> /// See the <see cref="ISQLiteNativeModule.xCommit" /> method. /// </param> /// <returns> /// See the <see cref="ISQLiteNativeModule.xCommit" /> method. /// </returns> private SQLiteErrorCode xCommit( IntPtr pVtab ) { try { SQLiteVirtualTable table = TableFromIntPtr(pVtab); |
︙ | ︙ | |||
5895 5896 5897 5898 5899 5900 5901 5902 5903 5904 5905 5906 5907 5908 | } return SQLiteErrorCode.Error; } /////////////////////////////////////////////////////////////////////// private SQLiteErrorCode xRollback( IntPtr pVtab ) { try { SQLiteVirtualTable table = TableFromIntPtr(pVtab); | > > > > > > > > > | 6646 6647 6648 6649 6650 6651 6652 6653 6654 6655 6656 6657 6658 6659 6660 6661 6662 6663 6664 6665 6666 6667 6668 | } return SQLiteErrorCode.Error; } /////////////////////////////////////////////////////////////////////// /// <summary> /// See the <see cref="ISQLiteNativeModule.xRollback" /> method. /// </summary> /// <param name="pVtab"> /// See the <see cref="ISQLiteNativeModule.xRollback" /> method. /// </param> /// <returns> /// See the <see cref="ISQLiteNativeModule.xRollback" /> method. /// </returns> private SQLiteErrorCode xRollback( IntPtr pVtab ) { try { SQLiteVirtualTable table = TableFromIntPtr(pVtab); |
︙ | ︙ | |||
5916 5917 5918 5919 5920 5921 5922 5923 5924 5925 5926 5927 5928 5929 | } return SQLiteErrorCode.Error; } /////////////////////////////////////////////////////////////////////// private int xFindFunction( IntPtr pVtab, int nArg, IntPtr zName, ref SQLiteCallback callback, ref IntPtr pClientData ) | > > > > > > > > > > > > > > > > > > > > > | 6676 6677 6678 6679 6680 6681 6682 6683 6684 6685 6686 6687 6688 6689 6690 6691 6692 6693 6694 6695 6696 6697 6698 6699 6700 6701 6702 6703 6704 6705 6706 6707 6708 6709 6710 | } return SQLiteErrorCode.Error; } /////////////////////////////////////////////////////////////////////// /// <summary> /// See the <see cref="ISQLiteNativeModule.xFindFunction" /> method. /// </summary> /// <param name="pVtab"> /// See the <see cref="ISQLiteNativeModule.xFindFunction" /> method. /// </param> /// <param name="nArg"> /// See the <see cref="ISQLiteNativeModule.xFindFunction" /> method. /// </param> /// <param name="zName"> /// See the <see cref="ISQLiteNativeModule.xFindFunction" /> method. /// </param> /// <param name="callback"> /// See the <see cref="ISQLiteNativeModule.xFindFunction" /> method. /// </param> /// <param name="pClientData"> /// See the <see cref="ISQLiteNativeModule.xFindFunction" /> method. /// </param> /// <returns> /// See the <see cref="ISQLiteNativeModule.xFindFunction" /> method. /// </returns> private int xFindFunction( IntPtr pVtab, int nArg, IntPtr zName, ref SQLiteCallback callback, ref IntPtr pClientData ) |
︙ | ︙ | |||
5959 5960 5961 5962 5963 5964 5965 5966 5967 5968 5969 5970 5971 5972 | } return 0; } /////////////////////////////////////////////////////////////////////// private SQLiteErrorCode xRename( IntPtr pVtab, IntPtr zNew ) { try { | > > > > > > > > > > > > | 6740 6741 6742 6743 6744 6745 6746 6747 6748 6749 6750 6751 6752 6753 6754 6755 6756 6757 6758 6759 6760 6761 6762 6763 6764 6765 | } return 0; } /////////////////////////////////////////////////////////////////////// /// <summary> /// See the <see cref="ISQLiteNativeModule.xRename" /> method. /// </summary> /// <param name="pVtab"> /// See the <see cref="ISQLiteNativeModule.xRename" /> method. /// </param> /// <param name="zNew"> /// See the <see cref="ISQLiteNativeModule.xRename" /> method. /// </param> /// <returns> /// See the <see cref="ISQLiteNativeModule.xRename" /> method. /// </returns> private SQLiteErrorCode xRename( IntPtr pVtab, IntPtr zNew ) { try { |
︙ | ︙ | |||
5984 5985 5986 5987 5988 5989 5990 5991 5992 5993 5994 5995 5996 5997 | } return SQLiteErrorCode.Error; } /////////////////////////////////////////////////////////////////////// private SQLiteErrorCode xSavepoint( IntPtr pVtab, int iSavepoint ) { try { | > > > > > > > > > > > > | 6777 6778 6779 6780 6781 6782 6783 6784 6785 6786 6787 6788 6789 6790 6791 6792 6793 6794 6795 6796 6797 6798 6799 6800 6801 6802 | } return SQLiteErrorCode.Error; } /////////////////////////////////////////////////////////////////////// /// <summary> /// See the <see cref="ISQLiteNativeModule.xSavepoint" /> method. /// </summary> /// <param name="pVtab"> /// See the <see cref="ISQLiteNativeModule.xSavepoint" /> method. /// </param> /// <param name="iSavepoint"> /// See the <see cref="ISQLiteNativeModule.xSavepoint" /> method. /// </param> /// <returns> /// See the <see cref="ISQLiteNativeModule.xSavepoint" /> method. /// </returns> private SQLiteErrorCode xSavepoint( IntPtr pVtab, int iSavepoint ) { try { |
︙ | ︙ | |||
6006 6007 6008 6009 6010 6011 6012 6013 6014 6015 6016 6017 6018 6019 | } return SQLiteErrorCode.Error; } /////////////////////////////////////////////////////////////////////// private SQLiteErrorCode xRelease( IntPtr pVtab, int iSavepoint ) { try { | > > > > > > > > > > > > | 6811 6812 6813 6814 6815 6816 6817 6818 6819 6820 6821 6822 6823 6824 6825 6826 6827 6828 6829 6830 6831 6832 6833 6834 6835 6836 | } return SQLiteErrorCode.Error; } /////////////////////////////////////////////////////////////////////// /// <summary> /// See the <see cref="ISQLiteNativeModule.xRelease" /> method. /// </summary> /// <param name="pVtab"> /// See the <see cref="ISQLiteNativeModule.xRelease" /> method. /// </param> /// <param name="iSavepoint"> /// See the <see cref="ISQLiteNativeModule.xRelease" /> method. /// </param> /// <returns> /// See the <see cref="ISQLiteNativeModule.xRelease" /> method. /// </returns> private SQLiteErrorCode xRelease( IntPtr pVtab, int iSavepoint ) { try { |
︙ | ︙ | |||
6028 6029 6030 6031 6032 6033 6034 6035 6036 6037 6038 6039 6040 6041 | } return SQLiteErrorCode.Error; } /////////////////////////////////////////////////////////////////////// private SQLiteErrorCode xRollbackTo( IntPtr pVtab, int iSavepoint ) { try { | > > > > > > > > > > > > | 6845 6846 6847 6848 6849 6850 6851 6852 6853 6854 6855 6856 6857 6858 6859 6860 6861 6862 6863 6864 6865 6866 6867 6868 6869 6870 | } return SQLiteErrorCode.Error; } /////////////////////////////////////////////////////////////////////// /// <summary> /// See the <see cref="ISQLiteNativeModule.xRollbackTo" /> method. /// </summary> /// <param name="pVtab"> /// See the <see cref="ISQLiteNativeModule.xRollbackTo" /> method. /// </param> /// <param name="iSavepoint"> /// See the <see cref="ISQLiteNativeModule.xRollbackTo" /> method. /// </param> /// <returns> /// See the <see cref="ISQLiteNativeModule.xRollbackTo" /> method. /// </returns> private SQLiteErrorCode xRollbackTo( IntPtr pVtab, int iSavepoint ) { try { |
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6053 6054 6055 6056 6057 6058 6059 6060 6061 6062 6063 6064 6065 6066 6067 6068 6069 6070 6071 6072 6073 6074 6075 6076 6077 6078 6079 6080 6081 6082 6083 6084 6085 6086 6087 6088 6089 6090 6091 6092 6093 6094 6095 6096 6097 6098 6099 6100 6101 6102 6103 6104 6105 6106 6107 6108 6109 6110 6111 6112 6113 6114 6115 6116 6117 6118 6119 6120 6121 6122 6123 6124 6125 6126 6127 6128 6129 6130 6131 6132 6133 6134 6135 6136 6137 6138 6139 6140 6141 6142 6143 6144 6145 6146 6147 6148 6149 6150 6151 6152 6153 6154 6155 6156 6157 6158 6159 6160 6161 6162 6163 6164 6165 6166 6167 6168 6169 6170 6171 6172 6173 6174 6175 6176 6177 6178 6179 6180 6181 6182 6183 6184 6185 6186 6187 6188 6189 6190 6191 6192 6193 6194 6195 6196 6197 6198 6199 6200 6201 6202 6203 6204 6205 6206 6207 6208 6209 6210 6211 6212 6213 6214 6215 6216 6217 6218 6219 6220 6221 6222 6223 6224 6225 6226 6227 6228 6229 6230 6231 6232 6233 6234 6235 6236 6237 6238 6239 6240 6241 6242 6243 6244 6245 6246 6247 6248 6249 6250 6251 6252 6253 6254 6255 6256 6257 6258 6259 6260 6261 6262 6263 6264 6265 6266 | } #endregion /////////////////////////////////////////////////////////////////////// #region ISQLiteManagedModule Members private bool declared; public virtual bool Declared { get { CheckDisposed(); return declared; } internal set { declared = value; } } /////////////////////////////////////////////////////////////////////// private string name; public virtual string Name { get { CheckDisposed(); return name; } } /////////////////////////////////////////////////////////////////////// public abstract SQLiteErrorCode Create( SQLiteConnection connection, IntPtr pClientData, string[] arguments, ref SQLiteVirtualTable table, ref string error ); /////////////////////////////////////////////////////////////////////// public abstract SQLiteErrorCode Connect( SQLiteConnection connection, IntPtr pClientData, string[] arguments, ref SQLiteVirtualTable table, ref string error ); /////////////////////////////////////////////////////////////////////// public abstract SQLiteErrorCode BestIndex( SQLiteVirtualTable table, SQLiteIndex index ); /////////////////////////////////////////////////////////////////////// public abstract SQLiteErrorCode Disconnect( SQLiteVirtualTable table ); /////////////////////////////////////////////////////////////////////// public abstract SQLiteErrorCode Destroy( SQLiteVirtualTable table ); /////////////////////////////////////////////////////////////////////// public abstract SQLiteErrorCode Open( SQLiteVirtualTable table, ref SQLiteVirtualTableCursor cursor ); /////////////////////////////////////////////////////////////////////// public abstract SQLiteErrorCode Close( SQLiteVirtualTableCursor cursor ); /////////////////////////////////////////////////////////////////////// public abstract SQLiteErrorCode Filter( SQLiteVirtualTableCursor cursor, int indexNumber, string indexString, SQLiteValue[] values ); /////////////////////////////////////////////////////////////////////// public abstract SQLiteErrorCode Next( SQLiteVirtualTableCursor cursor ); /////////////////////////////////////////////////////////////////////// public abstract bool Eof( SQLiteVirtualTableCursor cursor ); /////////////////////////////////////////////////////////////////////// public abstract SQLiteErrorCode Column( SQLiteVirtualTableCursor cursor, SQLiteContext context, int index ); /////////////////////////////////////////////////////////////////////// public abstract SQLiteErrorCode RowId( SQLiteVirtualTableCursor cursor, ref long rowId ); /////////////////////////////////////////////////////////////////////// public abstract SQLiteErrorCode Update( SQLiteVirtualTable table, SQLiteValue[] values, ref long rowId ); /////////////////////////////////////////////////////////////////////// public abstract SQLiteErrorCode Begin( SQLiteVirtualTable table ); /////////////////////////////////////////////////////////////////////// public abstract SQLiteErrorCode Sync( SQLiteVirtualTable table ); /////////////////////////////////////////////////////////////////////// public abstract SQLiteErrorCode Commit( SQLiteVirtualTable table ); /////////////////////////////////////////////////////////////////////// public abstract SQLiteErrorCode Rollback( SQLiteVirtualTable table ); /////////////////////////////////////////////////////////////////////// public abstract bool FindFunction( SQLiteVirtualTable table, int argumentCount, string name, ref SQLiteFunction function, ref IntPtr pClientData ); /////////////////////////////////////////////////////////////////////// public abstract SQLiteErrorCode Rename( SQLiteVirtualTable table, string newName ); /////////////////////////////////////////////////////////////////////// public abstract SQLiteErrorCode Savepoint( SQLiteVirtualTable table, int savepoint ); /////////////////////////////////////////////////////////////////////// public abstract SQLiteErrorCode Release( SQLiteVirtualTable table, int savepoint ); /////////////////////////////////////////////////////////////////////// public abstract SQLiteErrorCode RollbackTo( SQLiteVirtualTable table, int savepoint ); #endregion /////////////////////////////////////////////////////////////////////// #region IDisposable Members public void Dispose() { Dispose(true); GC.SuppressFinalize(this); } #endregion /////////////////////////////////////////////////////////////////////// #region IDisposable "Pattern" Members private bool disposed; private void CheckDisposed() /* throw */ { #if THROW_ON_DISPOSED if (disposed) { throw new ObjectDisposedException( typeof(SQLiteModule).Name); } #endif } /////////////////////////////////////////////////////////////////////// protected virtual void Dispose(bool disposing) { if (!disposed) { //if (disposing) //{ // //////////////////////////////////// | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 6882 6883 6884 6885 6886 6887 6888 6889 6890 6891 6892 6893 6894 6895 6896 6897 6898 6899 6900 6901 6902 6903 6904 6905 6906 6907 6908 6909 6910 6911 6912 6913 6914 6915 6916 6917 6918 6919 6920 6921 6922 6923 6924 6925 6926 6927 6928 6929 6930 6931 6932 6933 6934 6935 6936 6937 6938 6939 6940 6941 6942 6943 6944 6945 6946 6947 6948 6949 6950 6951 6952 6953 6954 6955 6956 6957 6958 6959 6960 6961 6962 6963 6964 6965 6966 6967 6968 6969 6970 6971 6972 6973 6974 6975 6976 6977 6978 6979 6980 6981 6982 6983 6984 6985 6986 6987 6988 6989 6990 6991 6992 6993 6994 6995 6996 6997 6998 6999 7000 7001 7002 7003 7004 7005 7006 7007 7008 7009 7010 7011 7012 7013 7014 7015 7016 7017 7018 7019 7020 7021 7022 7023 7024 7025 7026 7027 7028 7029 7030 7031 7032 7033 7034 7035 7036 7037 7038 7039 7040 7041 7042 7043 7044 7045 7046 7047 7048 7049 7050 7051 7052 7053 7054 7055 7056 7057 7058 7059 7060 7061 7062 7063 7064 7065 7066 7067 7068 7069 7070 7071 7072 7073 7074 7075 7076 7077 7078 7079 7080 7081 7082 7083 7084 7085 7086 7087 7088 7089 7090 7091 7092 7093 7094 7095 7096 7097 7098 7099 7100 7101 7102 7103 7104 7105 7106 7107 7108 7109 7110 7111 7112 7113 7114 7115 7116 7117 7118 7119 7120 7121 7122 7123 7124 7125 7126 7127 7128 7129 7130 7131 7132 7133 7134 7135 7136 7137 7138 7139 7140 7141 7142 7143 7144 7145 7146 7147 7148 7149 7150 7151 7152 7153 7154 7155 7156 7157 7158 7159 7160 7161 7162 7163 7164 7165 7166 7167 7168 7169 7170 7171 7172 7173 7174 7175 7176 7177 7178 7179 7180 7181 7182 7183 7184 7185 7186 7187 7188 7189 7190 7191 7192 7193 7194 7195 7196 7197 7198 7199 7200 7201 7202 7203 7204 7205 7206 7207 7208 7209 7210 7211 7212 7213 7214 7215 7216 7217 7218 7219 7220 7221 7222 7223 7224 7225 7226 7227 7228 7229 7230 7231 7232 7233 7234 7235 7236 7237 7238 7239 7240 7241 7242 7243 7244 7245 7246 7247 7248 7249 7250 7251 7252 7253 7254 7255 7256 7257 7258 7259 7260 7261 7262 7263 7264 7265 7266 7267 7268 7269 7270 7271 7272 7273 7274 7275 7276 7277 7278 7279 7280 7281 7282 7283 7284 7285 7286 7287 7288 7289 7290 7291 7292 7293 7294 7295 7296 7297 7298 7299 7300 7301 7302 7303 7304 7305 7306 7307 7308 7309 7310 7311 7312 7313 7314 7315 7316 7317 7318 7319 7320 7321 7322 7323 7324 7325 7326 7327 7328 7329 7330 7331 7332 7333 7334 7335 7336 7337 7338 7339 7340 7341 7342 7343 7344 7345 7346 7347 7348 7349 7350 7351 7352 7353 7354 7355 7356 7357 7358 7359 7360 7361 7362 7363 7364 7365 7366 7367 7368 7369 7370 7371 7372 7373 7374 7375 7376 7377 7378 7379 7380 7381 7382 7383 7384 7385 7386 7387 7388 7389 7390 7391 7392 7393 7394 7395 7396 7397 7398 7399 7400 7401 7402 7403 7404 7405 7406 7407 7408 7409 7410 7411 7412 7413 7414 7415 7416 7417 7418 7419 7420 7421 7422 7423 7424 7425 7426 7427 7428 7429 7430 7431 7432 7433 7434 7435 7436 7437 7438 7439 7440 7441 7442 7443 7444 7445 7446 7447 7448 7449 7450 7451 7452 7453 7454 7455 7456 7457 7458 7459 7460 7461 7462 7463 7464 7465 7466 7467 7468 7469 7470 7471 7472 7473 7474 | } #endregion /////////////////////////////////////////////////////////////////////// #region ISQLiteManagedModule Members private bool declared; /// <summary> /// Returns non-zero if the schema for the virtual table has been /// declared. /// </summary> public virtual bool Declared { get { CheckDisposed(); return declared; } internal set { declared = value; } } /////////////////////////////////////////////////////////////////////// private string name; /// <summary> /// Returns the name of the module as it was registered with the SQLite /// core library. /// </summary> public virtual string Name { get { CheckDisposed(); return name; } } /////////////////////////////////////////////////////////////////////// /// <summary> /// This method is called in response to the /// <see cref="ISQLiteNativeModule.xCreate" /> method. /// </summary> /// <param name="connection"> /// The <see cref="SQLiteConnection" /> object instance associated with /// the virtual table. /// </param> /// <param name="pClientData"> /// The native user-data pointer associated with this module, as it was /// provided to the SQLite core library when the native module instance /// was created. /// </param> /// <param name="arguments"> /// The module name, database name, virtual table name, and all other /// arguments passed to the CREATE VIRTUAL TABLE statement. /// </param> /// <param name="table"> /// Upon success, this parameter must be modified to contain the /// <see cref="SQLiteVirtualTable" /> object instance associated with /// the virtual table. /// </param> /// <param name="error"> /// Upon failure, this parameter must be modified to contain an error /// message. /// </param> /// <returns> /// A standard SQLite return code. /// </returns> public abstract SQLiteErrorCode Create( SQLiteConnection connection, IntPtr pClientData, string[] arguments, ref SQLiteVirtualTable table, ref string error ); /////////////////////////////////////////////////////////////////////// /// <summary> /// This method is called in response to the /// <see cref="ISQLiteNativeModule.xConnect" /> method. /// </summary> /// <param name="connection"> /// The <see cref="SQLiteConnection" /> object instance associated with /// the virtual table. /// </param> /// <param name="pClientData"> /// The native user-data pointer associated with this module, as it was /// provided to the SQLite core library when the native module instance /// was created. /// </param> /// <param name="arguments"> /// The module name, database name, virtual table name, and all other /// arguments passed to the CREATE VIRTUAL TABLE statement. /// </param> /// <param name="table"> /// Upon success, this parameter must be modified to contain the /// <see cref="SQLiteVirtualTable" /> object instance associated with /// the virtual table. /// </param> /// <param name="error"> /// Upon failure, this parameter must be modified to contain an error /// message. /// </param> /// <returns> /// A standard SQLite return code. /// </returns> public abstract SQLiteErrorCode Connect( SQLiteConnection connection, IntPtr pClientData, string[] arguments, ref SQLiteVirtualTable table, ref string error ); /////////////////////////////////////////////////////////////////////// /// <summary> /// This method is called in response to the /// <see cref="ISQLiteNativeModule.xBestIndex" /> method. /// </summary> /// <param name="table"> /// The <see cref="SQLiteVirtualTable" /> object instance associated /// with this virtual table. /// </param> /// <param name="index"> /// The <see cref="SQLiteIndex" /> object instance containing all the /// data for the inputs and outputs relating to index selection. /// </param> /// <returns> /// A standard SQLite return code. /// </returns> public abstract SQLiteErrorCode BestIndex( SQLiteVirtualTable table, SQLiteIndex index ); /////////////////////////////////////////////////////////////////////// /// <summary> /// This method is called in response to the /// <see cref="ISQLiteNativeModule.xDisconnect" /> method. /// </summary> /// <param name="table"> /// The <see cref="SQLiteVirtualTable" /> object instance associated /// with this virtual table. /// </param> /// <returns> /// A standard SQLite return code. /// </returns> public abstract SQLiteErrorCode Disconnect( SQLiteVirtualTable table ); /////////////////////////////////////////////////////////////////////// /// <summary> /// This method is called in response to the /// <see cref="ISQLiteNativeModule.xDestroy" /> method. /// </summary> /// <param name="table"> /// The <see cref="SQLiteVirtualTable" /> object instance associated /// with this virtual table. /// </param> /// <returns> /// A standard SQLite return code. /// </returns> public abstract SQLiteErrorCode Destroy( SQLiteVirtualTable table ); /////////////////////////////////////////////////////////////////////// /// <summary> /// This method is called in response to the /// <see cref="ISQLiteNativeModule.xOpen" /> method. /// </summary> /// <param name="table"> /// The <see cref="SQLiteVirtualTable" /> object instance associated /// with this virtual table. /// </param> /// <param name="cursor"> /// Upon success, this parameter must be modified to contain the /// <see cref="SQLiteVirtualTableCursor" /> object instance associated /// with the newly opened virtual table cursor. /// </param> /// <returns> /// A standard SQLite return code. /// </returns> public abstract SQLiteErrorCode Open( SQLiteVirtualTable table, ref SQLiteVirtualTableCursor cursor ); /////////////////////////////////////////////////////////////////////// /// <summary> /// This method is called in response to the /// <see cref="ISQLiteNativeModule.xClose" /> method. /// </summary> /// <param name="cursor"> /// The <see cref="SQLiteVirtualTableCursor" /> object instance /// associated with the previously opened virtual table cursor to be /// used. /// </param> /// <returns> /// A standard SQLite return code. /// </returns> public abstract SQLiteErrorCode Close( SQLiteVirtualTableCursor cursor ); /////////////////////////////////////////////////////////////////////// /// <summary> /// This method is called in response to the /// <see cref="ISQLiteNativeModule.xFilter" /> method. /// </summary> /// <param name="cursor"> /// The <see cref="SQLiteVirtualTableCursor" /> object instance /// associated with the previously opened virtual table cursor to be /// used. /// </param> /// <param name="indexNumber"> /// Number used to help identify the selected index. /// </param> /// <param name="indexString"> /// String used to help identify the selected index. /// </param> /// <param name="values"> /// The values corresponding to each column in the selected index. /// </param> /// <returns> /// A standard SQLite return code. /// </returns> public abstract SQLiteErrorCode Filter( SQLiteVirtualTableCursor cursor, int indexNumber, string indexString, SQLiteValue[] values ); /////////////////////////////////////////////////////////////////////// /// <summary> /// This method is called in response to the /// <see cref="ISQLiteNativeModule.xNext" /> method. /// </summary> /// <param name="cursor"> /// The <see cref="SQLiteVirtualTableCursor" /> object instance /// associated with the previously opened virtual table cursor to be /// used. /// </param> /// <returns> /// A standard SQLite return code. /// </returns> public abstract SQLiteErrorCode Next( SQLiteVirtualTableCursor cursor ); /////////////////////////////////////////////////////////////////////// /// <summary> /// This method is called in response to the /// <see cref="ISQLiteNativeModule.xEof" /> method. /// </summary> /// <param name="cursor"> /// The <see cref="SQLiteVirtualTableCursor" /> object instance /// associated with the previously opened virtual table cursor to be /// used. /// </param> /// <returns> /// Non-zero if no more rows are available; zero otherwise. /// </returns> public abstract bool Eof( SQLiteVirtualTableCursor cursor ); /////////////////////////////////////////////////////////////////////// /// <summary> /// This method is called in response to the /// <see cref="ISQLiteNativeModule.xColumn" /> method. /// </summary> /// <param name="cursor"> /// The <see cref="SQLiteVirtualTableCursor" /> object instance /// associated with the previously opened virtual table cursor to be /// used. /// </param> /// <param name="context"> /// The <see cref="SQLiteContext" /> object instance to be used for /// returning the specified column value to the SQLite core library. /// </param> /// <param name="index"> /// The zero-based index corresponding to the column containing the /// value to be returned. /// </param> /// <returns> /// A standard SQLite return code. /// </returns> public abstract SQLiteErrorCode Column( SQLiteVirtualTableCursor cursor, SQLiteContext context, int index ); /////////////////////////////////////////////////////////////////////// /// <summary> /// This method is called in response to the /// <see cref="ISQLiteNativeModule.xRowId" /> method. /// </summary> /// <param name="cursor"> /// The <see cref="SQLiteVirtualTableCursor" /> object instance /// associated with the previously opened virtual table cursor to be /// used. /// </param> /// <param name="rowId"> /// Upon success, this parameter must be modified to contain the unique /// integer row identifier for the current row for the specified cursor. /// </param> /// <returns> /// A standard SQLite return code. /// </returns> public abstract SQLiteErrorCode RowId( SQLiteVirtualTableCursor cursor, ref long rowId ); /////////////////////////////////////////////////////////////////////// /// <summary> /// This method is called in response to the /// <see cref="ISQLiteNativeModule.xUpdate" /> method. /// </summary> /// <param name="table"> /// The <see cref="SQLiteVirtualTable" /> object instance associated /// with this virtual table. /// </param> /// <param name="values"> /// The array of <see cref="SQLiteValue" /> object instances containing /// the new or modified column values, if any. /// </param> /// <param name="rowId"> /// Upon success, this parameter must be modified to contain the unique /// integer row identifier for the row that was inserted, if any. /// </param> /// <returns> /// A standard SQLite return code. /// </returns> public abstract SQLiteErrorCode Update( SQLiteVirtualTable table, SQLiteValue[] values, ref long rowId ); /////////////////////////////////////////////////////////////////////// /// <summary> /// This method is called in response to the /// <see cref="ISQLiteNativeModule.xBegin" /> method. /// </summary> /// <param name="table"> /// The <see cref="SQLiteVirtualTable" /> object instance associated /// with this virtual table. /// </param> /// <returns> /// A standard SQLite return code. /// </returns> public abstract SQLiteErrorCode Begin( SQLiteVirtualTable table ); /////////////////////////////////////////////////////////////////////// /// <summary> /// This method is called in response to the /// <see cref="ISQLiteNativeModule.xSync" /> method. /// </summary> /// <param name="table"> /// The <see cref="SQLiteVirtualTable" /> object instance associated /// with this virtual table. /// </param> /// <returns> /// A standard SQLite return code. /// </returns> public abstract SQLiteErrorCode Sync( SQLiteVirtualTable table ); /////////////////////////////////////////////////////////////////////// /// <summary> /// This method is called in response to the /// <see cref="ISQLiteNativeModule.xCommit" /> method. /// </summary> /// <param name="table"> /// The <see cref="SQLiteVirtualTable" /> object instance associated /// with this virtual table. /// </param> /// <returns> /// A standard SQLite return code. /// </returns> public abstract SQLiteErrorCode Commit( SQLiteVirtualTable table ); /////////////////////////////////////////////////////////////////////// /// <summary> /// This method is called in response to the /// <see cref="ISQLiteNativeModule.xRollback" /> method. /// </summary> /// <param name="table"> /// The <see cref="SQLiteVirtualTable" /> object instance associated /// with this virtual table. /// </param> /// <returns> /// A standard SQLite return code. /// </returns> public abstract SQLiteErrorCode Rollback( SQLiteVirtualTable table ); /////////////////////////////////////////////////////////////////////// /// <summary> /// This method is called in response to the /// <see cref="ISQLiteNativeModule.xFindFunction" /> method. /// </summary> /// <param name="table"> /// The <see cref="SQLiteVirtualTable" /> object instance associated /// with this virtual table. /// </param> /// <param name="argumentCount"> /// The number of arguments to the function being sought. /// </param> /// <param name="name"> /// The name of the function being sought. /// </param> /// <param name="function"> /// Upon success, this parameter must be modified to contain the /// <see cref="SQLiteFunction" /> object instance responsible for /// implementing the specified function. /// </param> /// <param name="pClientData"> /// Upon success, this parameter must be modified to contain the /// native user-data pointer associated with /// <paramref name="function" />. /// </param> /// <returns> /// Non-zero if the specified function was found; zero otherwise. /// </returns> public abstract bool FindFunction( SQLiteVirtualTable table, int argumentCount, string name, ref SQLiteFunction function, ref IntPtr pClientData ); /////////////////////////////////////////////////////////////////////// /// <summary> /// This method is called in response to the /// <see cref="ISQLiteNativeModule.xRename" /> method. /// </summary> /// <param name="table"> /// The <see cref="SQLiteVirtualTable" /> object instance associated /// with this virtual table. /// </param> /// <param name="newName"> /// The new name for the virtual table. /// </param> /// <returns> /// A standard SQLite return code. /// </returns> public abstract SQLiteErrorCode Rename( SQLiteVirtualTable table, string newName ); /////////////////////////////////////////////////////////////////////// /// <summary> /// This method is called in response to the /// <see cref="ISQLiteNativeModule.xSavepoint" /> method. /// </summary> /// <param name="table"> /// The <see cref="SQLiteVirtualTable" /> object instance associated /// with this virtual table. /// </param> /// <param name="savepoint"> /// This is an integer identifier under which the the current state of /// the virtual table should be saved. /// </param> /// <returns> /// A standard SQLite return code. /// </returns> public abstract SQLiteErrorCode Savepoint( SQLiteVirtualTable table, int savepoint ); /////////////////////////////////////////////////////////////////////// /// <summary> /// This method is called in response to the /// <see cref="ISQLiteNativeModule.xRelease" /> method. /// </summary> /// <param name="table"> /// The <see cref="SQLiteVirtualTable" /> object instance associated /// with this virtual table. /// </param> /// <param name="savepoint"> /// This is an integer used to indicate that any saved states with an /// identifier greater than or equal to this should be deleted by the /// virtual table. /// </param> /// <returns> /// A standard SQLite return code. /// </returns> public abstract SQLiteErrorCode Release( SQLiteVirtualTable table, int savepoint ); /////////////////////////////////////////////////////////////////////// /// <summary> /// This method is called in response to the /// <see cref="ISQLiteNativeModule.xRollbackTo" /> method. /// </summary> /// <param name="table"> /// The <see cref="SQLiteVirtualTable" /> object instance associated /// with this virtual table. /// </param> /// <param name="savepoint"> /// This is an integer identifier used to specify a specific saved /// state for the virtual table for it to restore itself back to, which /// should also have the effect of deleting all saved states with an /// integer identifier greater than this one. /// </param> /// <returns> /// A standard SQLite return code. /// </returns> public abstract SQLiteErrorCode RollbackTo( SQLiteVirtualTable table, int savepoint ); #endregion /////////////////////////////////////////////////////////////////////// #region IDisposable Members /// <summary> /// Disposes of this object instance. /// </summary> public void Dispose() { Dispose(true); GC.SuppressFinalize(this); } #endregion /////////////////////////////////////////////////////////////////////// #region IDisposable "Pattern" Members private bool disposed; /// <summary> /// Throws an <see cref="System.ObjectDisposedException"/> if this /// object instance has been disposed. /// </summary> private void CheckDisposed() /* throw */ { #if THROW_ON_DISPOSED if (disposed) { throw new ObjectDisposedException( typeof(SQLiteModule).Name); } #endif } /////////////////////////////////////////////////////////////////////// /// <summary> /// Disposes of this object instance. /// </summary> /// <param name="disposing"> /// Non-zero if this method is being called from the /// <see cref="Dispose()" /> method. Zero if this method is being /// called from the finalizer. /// </param> protected virtual void Dispose(bool disposing) { if (!disposed) { //if (disposing) //{ // //////////////////////////////////// |
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6299 6300 6301 6302 6303 6304 6305 6306 6307 6308 6309 6310 6311 6312 6313 | } } #endregion /////////////////////////////////////////////////////////////////////// #region Destructor ~SQLiteModule() { Dispose(false); } #endregion } #endregion } | > > > | 7507 7508 7509 7510 7511 7512 7513 7514 7515 7516 7517 7518 7519 7520 7521 7522 7523 7524 | } } #endregion /////////////////////////////////////////////////////////////////////// #region Destructor /// <summary> /// Finalizes this object instance. /// </summary> ~SQLiteModule() { Dispose(false); } #endregion } #endregion } |