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Overview
Comment: | Add classes to contain the per-connection type callbacks and mappings. |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | customDataTypes |
Files: | files | file ages | folders |
SHA1: |
6a75a30b623e0df3818fb93ed576eb96 |
User & Date: | mistachkin 2016-06-19 02:22:27.750 |
Context
2016-06-19
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02:59 | Add the new connection flags. check-in: ff93dd1274 user: mistachkin tags: customDataTypes | |
02:22 | Add classes to contain the per-connection type callbacks and mappings. check-in: 6a75a30b62 user: mistachkin tags: customDataTypes | |
01:45 | Add 'userData' parameter to callbacks. check-in: f9b89a33af user: mistachkin tags: customDataTypes | |
Changes
Changes to System.Data.SQLite/SQLiteConnection.cs.
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499 500 501 502 503 504 505 506 507 508 509 510 511 512 | int index, object userData, out bool complete ); ///////////////////////////////////////////////////////////////////////////////////////////////// /// <summary> /// Event data for connection event handlers. /// </summary> public class ConnectionEventArgs : EventArgs { /// <summary> /// The type of event being raised. | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 | int index, object userData, out bool complete ); ///////////////////////////////////////////////////////////////////////////////////////////////// /// <summary> /// This class represents the custom data type handling callbacks /// for a single type name. /// </summary> public sealed class SQLiteTypeCallbacks { #region Private Data /// <summary> /// Provides the underlying storage for the /// <see cref="TypeName" /> property. /// </summary> private string typeName; /// <summary> /// Provides the underlying storage for the /// <see cref="BindValueCallback" /> property. /// </summary> private SQLiteBindValueCallback bindValueCallback; /// <summary> /// Provides the underlying storage for the /// <see cref="ReadValueCallback" /> property. /// </summary> private SQLiteReadValueCallback readValueCallback; /// <summary> /// Provides the underlying storage for the /// <see cref="BindValueUserData" /> property. /// </summary> private object bindValueUserData; /// <summary> /// Provides the underlying storage for the /// <see cref="ReadValueUserData" /> property. /// </summary> private object readValueUserData; #endregion ///////////////////////////////////////////////////////////////////////// #region Private Constructors /// <summary> /// Constructs an instance of this class. /// </summary> /// <param name="typeName"> /// The database type name that the callbacks contained in this class /// will apply to. This parameter may not be null. /// </param> /// <param name="bindValueCallback"> /// The custom paramater binding callback. This parameter may be null. /// </param> /// <param name="readValueCallback"> /// The custom data reader value callback. This parameter may be null. /// </param> /// <param name="bindValueUserData"> /// The extra data to pass into the parameter binding callback. This /// parameter may be null. /// </param> /// <param name="readValueUserData"> /// The extra data to pass into the data reader value callback. This /// parameter may be null. /// </param> internal SQLiteTypeCallbacks( string typeName, SQLiteBindValueCallback bindValueCallback, SQLiteReadValueCallback readValueCallback, object bindValueUserData, object readValueUserData ) { this.typeName = typeName; this.bindValueCallback = bindValueCallback; this.readValueCallback = readValueCallback; this.bindValueUserData = bindValueUserData; this.readValueUserData = readValueUserData; } #endregion ///////////////////////////////////////////////////////////////////////// #region Public Properties /// <summary> /// The database type name that the callbacks contained in this class /// will apply to. This value may not be null. /// </summary> public string TypeName { get { return typeName; } } ///////////////////////////////////////////////////////////////////////// /// <summary> /// The custom paramater binding callback. This value may be null. /// </summary> public SQLiteBindValueCallback BindValueCallback { get { return bindValueCallback; } } ///////////////////////////////////////////////////////////////////////// /// <summary> /// The custom data reader value callback. This value may be null. /// </summary> public SQLiteReadValueCallback ReadValueCallback { get { return readValueCallback; } } ///////////////////////////////////////////////////////////////////////// /// <summary> /// The extra data to pass into the parameter binding callback. This /// value may be null. /// </summary> public object BindValueUserData { get { return bindValueCallback; } } ///////////////////////////////////////////////////////////////////////// /// <summary> /// The extra data to pass into the data reader value callback. This /// value may be null. /// </summary> public object ReadValueUserData { get { return readValueUserData; } } #endregion } ///////////////////////////////////////////////////////////////////////////////////////////////// /// <summary> /// This class represents the mappings between database type names /// and their associated custom data type handling callbacks. /// </summary> internal sealed class SQLiteTypeCallbacksMap : Dictionary<string, SQLiteTypeCallbacks> { /// <summary> /// Constructs an (empty) instance of this class. /// </summary> public SQLiteTypeCallbacksMap() : base(new TypeNameStringComparer()) { // do nothing. } } ///////////////////////////////////////////////////////////////////////////////////////////////// /// <summary> /// Event data for connection event handlers. /// </summary> public class ConnectionEventArgs : EventArgs { /// <summary> /// The type of event being raised. |
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1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 | /// <summary> /// The per-connection mappings between type names and <see cref="DbType" /> /// values. These mappings override the corresponding global mappings. /// </summary> internal SQLiteDbTypeMap _typeNames; /// <summary> /// The base SQLite object to interop with /// </summary> internal SQLiteBase _sql; /// <summary> /// The database filename minus path and extension /// </summary> | > > > > > > | 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 | /// <summary> /// The per-connection mappings between type names and <see cref="DbType" /> /// values. These mappings override the corresponding global mappings. /// </summary> internal SQLiteDbTypeMap _typeNames; /// <summary> /// The per-connection mappings between type names and optional callbacks /// for parameter binding and value reading. /// </summary> private SQLiteTypeCallbacksMap _typeCallbacks; /// <summary> /// The base SQLite object to interop with /// </summary> internal SQLiteBase _sql; /// <summary> /// The database filename minus path and extension /// </summary> |
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1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 | } #endif _cachedSettings = new Dictionary<string, object>( new TypeNameStringComparer()); _typeNames = new SQLiteDbTypeMap(); _parseViaFramework = parseViaFramework; _flags = SQLiteConnectionFlags.None; _defaultDbType = null; _defaultTypeName = null; _vfsName = null; _connectionState = ConnectionState.Closed; _connectionString = null; | > | 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 | } #endif _cachedSettings = new Dictionary<string, object>( new TypeNameStringComparer()); _typeNames = new SQLiteDbTypeMap(); _typeCallbacks = new SQLiteTypeCallbacksMap(); _parseViaFramework = parseViaFramework; _flags = SQLiteConnectionFlags.None; _defaultDbType = null; _defaultTypeName = null; _vfsName = null; _connectionState = ConnectionState.Closed; _connectionString = null; |
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1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 | _typeNames.Add(new SQLiteDbTypeMapping(typeName, dataType, primary)); } return result; } #endregion /////////////////////////////////////////////////////////////////////////////////////////////// /// <summary> /// Attempts to bind the specified <see cref="SQLiteFunction" /> object /// instance to this connection. /// </summary> | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 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 | _typeNames.Add(new SQLiteDbTypeMapping(typeName, dataType, primary)); } return result; } #endregion /////////////////////////////////////////////////////////////////////////////////////////////// #region Per-Connection Type Callbacks /// <summary> /// Clears the per-connection type callbacks. /// </summary> /// <returns> /// The total number of per-connection type callbacks cleared. /// </returns> public int ClearTypeCallbacks() { CheckDisposed(); int result = -1; /* NO CALLBACKS */ if (_typeCallbacks != null) { result = _typeCallbacks.Count; _typeCallbacks.Clear(); } return result; } /////////////////////////////////////////////////////////////////////////////////////////////// /// <summary> /// Attempts to get the per-connection type callbacks for the specified /// database type name. /// </summary> /// <param name="typeName"> /// The database type name. /// </param> /// <param name="callbacks"> /// Upon success, this parameter will contain the object holding the /// callbacks for the database type name. Upon failure, this parameter /// will be null. /// </param> /// <returns> /// Non-zero upon success; otherwise, zero. /// </returns> public bool TryGetTypeCallbacks( string typeName, out SQLiteTypeCallbacks callbacks ) { if (typeName == null) throw new ArgumentNullException("typeName"); if (_typeCallbacks == null) { callbacks = null; return false; } return _typeCallbacks.TryGetValue(typeName, out callbacks); } /////////////////////////////////////////////////////////////////////////////////////////////// /// <summary> /// Sets, resets, or clears the per-connection type callbacks for the /// specified database type name. /// </summary> /// <param name="typeName"> /// The database type name. /// </param> /// <param name="callbacks"> /// The object holding the callbacks for the database type name. If /// this parameter is null, any callbacks for the database type name /// will be removed if they are present. /// </param> /// <returns> /// Non-zero if callbacks were set or removed; otherwise, zero. /// </returns> public bool SetTypeCallbacks( string typeName, SQLiteTypeCallbacks callbacks ) { if (typeName == null) throw new ArgumentNullException("typeName"); if (_typeCallbacks == null) return false; if (callbacks == null) return _typeCallbacks.Remove(typeName); _typeCallbacks[typeName] = callbacks; return true; } #endregion /////////////////////////////////////////////////////////////////////////////////////////////// /// <summary> /// Attempts to bind the specified <see cref="SQLiteFunction" /> object /// instance to this connection. /// </summary> |
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