using System;
using System.Collections.Generic;
using System.Text;
using System.ComponentModel;
using System.Data;
using System.Data.Common;
namespace SQLite.Designer.Design
{
internal class PrimaryKey : Index, ICloneable
{
private bool _autoincrement;
internal PrimaryKey(DbConnection cnn, Table table, DataRow row)
: base(cnn, table, row)
{
if (String.IsNullOrEmpty(_name) == false && _name.StartsWith("sqlite_", StringComparison.OrdinalIgnoreCase))
_name = null;
}
protected PrimaryKey(PrimaryKey source)
: base(source)
{
_autoincrement = source._autoincrement;
}
public override IndexTypeEnum IndexType
{
get
{
return IndexTypeEnum.PrimaryKey;
}
}
protected override string NamePrefix
{
get
{
return "PK";
}
}
protected override string NewName
{
get
{
return Table.Name;
}
}
[Browsable(false)]
public override bool Unique
{
get
{
return true;
}
set
{
base.Unique = true;
}
}
[DefaultValue(ConflictEnum.Abort)]
[DisplayName("On Conflict")]
public ConflictEnum Conflict
{
get { return _conflict; }
set { _conflict = value; }
}
[DefaultValue(false)]
public bool AutoIncrement
{
get
{
if (Columns.Count > 1) return false;
if (Columns.Count == 1 && Columns[0].SortMode != ColumnSortMode.Ascending) return false;
return _autoincrement;
}
set { _autoincrement = value; }
}
#region ICloneable Members
object ICloneable.Clone()
{
return new PrimaryKey(this);
}
#endregion
}
}