/// <summary>
/// Build the PreparedStatement
/// </summary>
/// <param name="session"></param>
/// <param name="sqlStatement"></param>
public void BuildPreparedStatement(ISqlMapSession session, string sqlStatement)
{
RequestScope request = new RequestScope( _dataExchangeFactory, session, _statement);
PreparedStatementFactory factory = new PreparedStatementFactory( session, request, _statement, sqlStatement);
_preparedStatement = factory.Prepare();
}
/// <summary>
/// Build the PreparedStatement
/// </summary>
/// <param name="session"></param>
/// <param name="commandText"></param>
/// <param name="request"></param>
public PreparedStatement BuildPreparedStatement(ISqlMapSession session, RequestScope request, string commandText)
{
if ( _preparedStatement == null )
{
lock(_synRoot)
{
if (_preparedStatement==null)
{
PreparedStatementFactory factory = new PreparedStatementFactory( session, request, _statement, commandText);
_preparedStatement = factory.Prepare();
}
}
}
return _preparedStatement;
}
/// <summary>
/// Create a list of IDataParameter for the statement and build the sql string.
/// </summary>
public PreparedStatement Prepare()
{
_preparedStatement = new PreparedStatement();
_parameterPrefix = _session.DataSource.DbProvider.ParameterPrefix;
_preparedStatement.PreparedSql = _commandText;
if (_statement.CommandType == CommandType.Text)
{
if (_request.ParameterMap != null)
{
CreateParametersForTextCommand();
EvaluateParameterMap();
}
}
else if (_statement.CommandType == CommandType.StoredProcedure) // StoredProcedure
{
if (_request.ParameterMap == null) // No parameterMap --> error
{
throw new DataMapperException("A procedure statement tag must have a parameterMap attribute, which is not the case for the procedure '"+_statement.Id+".");
}
else // use the parameterMap
{
if (_session.DataSource.DbProvider.UseDeriveParameters)
{
DiscoverParameter(_session);
}
else
{
CreateParametersForProcedureCommand();
}
}
#region Fix for Odbc
// Although executing a parameterized stored procedure using the ODBC .NET Provider
// is slightly different from executing the same procedure using the SQL or
// the OLE DB Provider, there is one important difference
// -- the stored procedure must be called using the ODBC CALL syntax rather than
// the name of the stored procedure.
// For additional information on this CALL syntax,
// see the page entitled "Procedure Calls" in the ODBC Programmer's Reference
// in the MSDN Library.
//http://support.microsoft.com/default.aspx?scid=kb;EN-US;Q309486
if ( _session.DataSource.DbProvider.IsObdc == true )
{
StringBuilder commandTextBuilder = new StringBuilder("{ call ");
commandTextBuilder.Append( _commandText );
if (_preparedStatement.DbParameters.Length >0)
{
commandTextBuilder.Append(" (");
int supIndex = _preparedStatement.DbParameters.Length-1;
for(int i=0;i<supIndex;i++)
{
commandTextBuilder.Append("?,");
}
commandTextBuilder.Append("?) }");
}
_preparedStatement.PreparedSql = commandTextBuilder.ToString();
}
#endregion
}
if (_logger.IsDebugEnabled)
{
_logger.Debug("Statement Id: [" + _statement.Id + "] Prepared SQL: [" + _preparedStatement.PreparedSql + "]");
}
return _preparedStatement;
}
/// <summary>
/// Create a list of IDataParameter for the statement and build the sql string.
/// </summary>
public PreparedStatement Prepare()
{
_preparedStatement = new PreparedStatement();
_parameterPrefix = _session.DataSource.DbProvider.ParameterPrefix;
_preparedStatement.PreparedSql = _commandText;
if (_statement.CommandType == CommandType.Text)
{
if (_request.ParameterMap != null)
{
CreateParametersForTextCommand();
EvaluateParameterMap();
}
}
else if (_statement.CommandType == CommandType.StoredProcedure) // StoredProcedure
{
if (_request.ParameterMap == null) // No parameterMap --> error
{
throw new DataMapperException("A procedure statement tag must have a parameterMap attribute, which is not the case for the procedure '" + _statement.Id + ".");
}
else // use the parameterMap
{
if (_session.DataSource.DbProvider.UseDeriveParameters)
{
DiscoverParameter(_session);
}
else
{
CreateParametersForProcedureCommand();
}
}
#region Fix for Odbc
// Although executing a parameterized stored procedure using the ODBC .NET Provider
// is slightly different from executing the same procedure using the SQL or
// the OLE DB Provider, there is one important difference
// -- the stored procedure must be called using the ODBC CALL syntax rather than
// the name of the stored procedure.
// For additional information on this CALL syntax,
// see the page entitled "Procedure Calls" in the ODBC Programmer's Reference
// in the MSDN Library.
//http://support.microsoft.com/default.aspx?scid=kb;EN-US;Q309486
if (_session.DataSource.DbProvider.IsObdc == true)
{
StringBuilder commandTextBuilder = new StringBuilder("{ call ");
commandTextBuilder.Append(_commandText);
if (_preparedStatement.DbParameters.Length > 0)
{
commandTextBuilder.Append(" (");
int supIndex = _preparedStatement.DbParameters.Length - 1;
for (int i = 0; i < supIndex; i++)
{
commandTextBuilder.Append("?,");
}
commandTextBuilder.Append("?) }");
}
_preparedStatement.PreparedSql = commandTextBuilder.ToString();
}
#endregion
}
if (_logger.IsDebugEnabled)
{
_logger.Debug("Statement Id: [" + _statement.Id + "] Prepared SQL: [" + _preparedStatement.PreparedSql + "]");
}
return(_preparedStatement);
}
