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// Copyright (c) 2004-2008 MySQL AB, 2008-2009 Sun Microsystems, Inc.
//
// MySQL Connector/NET is licensed under the terms of the GPLv2
// <http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>, like most
// MySQL Connectors. There are special exceptions to the terms and
// conditions of the GPLv2 as it is applied to this software, see the
// FLOSS License Exception
// <http://www.mysql.com/about/legal/licensing/foss-exception.html>.
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published
// by the Free Software Foundation; version 2 of the License.
//
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
using System;
using System.Data;
using MySql.Data.MySqlClient;
namespace MySql.Data.Types
{
/// <summary>
/// Summary description for MySqlUInt64.
/// </summary>
internal struct MySqlBit : IMySqlValue
{
private ulong mValue;
private bool isNull;
private bool readAsString;
public MySqlBit(bool isnull)
{
mValue = 0;
isNull = isnull;
readAsString = false;
}
public bool ReadAsString
{
get { return readAsString; }
set { readAsString = value; }
}
public bool IsNull
{
get { return isNull; }
}
MySqlDbType IMySqlValue.MySqlDbType
{
get { return MySqlDbType.Bit; }
}
DbType IMySqlValue.DbType
{
get { return DbType.UInt64; }
}
object IMySqlValue.Value
{
get
{
return mValue;
}
}
Type IMySqlValue.SystemType
{
get
{
return typeof(UInt64);
}
}
string IMySqlValue.MySqlTypeName
{
get { return "BIT"; }
}
public void WriteValue(MySqlPacket packet, bool binary, object value, int length)
{
ulong v = (value is UInt64) ? (UInt64)value : Convert.ToUInt64(value);
if (binary)
packet.WriteInteger((long)v, 8);
else
packet.WriteStringNoNull(v.ToString());
}
public IMySqlValue ReadValue(MySqlPacket packet, long length, bool isNull)
{
this.isNull = isNull;
if (isNull)
return this;
if (length == -1)
length = packet.ReadFieldLength();
if (ReadAsString)
mValue = UInt64.Parse(packet.ReadString(length));
else
mValue = (UInt64)packet.ReadBitValue((int)length);
return this;
}
public void SkipValue(MySqlPacket packet)
{
int len = (int)packet.ReadFieldLength();
packet.Position += len;
}
public static void SetDSInfo(DataTable dsTable)
{
// we use name indexing because this method will only be called
// when GetSchema is called for the DataSourceInformation
// collection and then it wil be cached.
DataRow row = dsTable.NewRow();
row["TypeName"] = "BIT";
row["ProviderDbType"] = MySqlDbType.Bit;
row["ColumnSize"] = 64;
row["CreateFormat"] = "BIT";
row["CreateParameters"] = DBNull.Value; ;
row["DataType"] = typeof(UInt64).ToString();
row["IsAutoincrementable"] = false;
row["IsBestMatch"] = true;
row["IsCaseSensitive"] = false;
row["IsFixedLength"] = false;
row["IsFixedPrecisionScale"] = true;
row["IsLong"] = false;
row["IsNullable"] = true;
row["IsSearchable"] = true;
row["IsSearchableWithLike"] = false;
row["IsUnsigned"] = false;
row["MaximumScale"] = 0;
row["MinimumScale"] = 0;
row["IsConcurrencyType"] = DBNull.Value;
row["IsLiteralSupported"] = false;
row["LiteralPrefix"] = DBNull.Value;
row["LiteralSuffix"] = DBNull.Value;
row["NativeDataType"] = DBNull.Value;
dsTable.Rows.Add(row);
}
}
}
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