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/*
* $Id$
*
* This file is part of the OpenLink Software Virtuoso Open-Source (VOS)
* project.
*
* Copyright (C) 1998-2012 OpenLink Software
*
* This project 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; only version 2 of the License, dated June 1991.
*
* 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
*
*/
package virtuoso.jdbc2;
import java.sql.*;
/**
* The VirtuosoNullParameter class is designed for Prepared and Callable
* statements for which some parameters are NULL, to keep track of the SQL
* type when executing the query.
*
* @version 1.0 (JDBC API 1.2 implementation)
* @see virtuoso.jdbc.VirtuosoConnection#prepareStatement
*/
public class VirtuosoNullParameter
{
// The Virtuoso types of the parameter
private int type;
/**
* Constructs a new VirtuosoNullParameter.
*
* @param type The Virtuoso types of the parameter.
*/
VirtuosoNullParameter(int type) throws VirtuosoException
{
this(type, false);
}
/**
* Constructs a new VirtuosoNullParameter from a Generic Type.
*
* @param type The Type of the parameter.
* @param isSql True if the Type is a SQL Type.
*/
VirtuosoNullParameter(int type, boolean isSql) throws VirtuosoException
{
if(isSql == false) this.type = type;
else this.type = this.fromSQLType(type);
}
private int fromSQLType(int type) throws VirtuosoException
{
switch (type)
{
case Types.NULL:
return VirtuosoTypes.DV_DB_NULL;
case Types.VARCHAR:
return VirtuosoTypes.DV_STRING;
case Types.LONGVARCHAR:
return VirtuosoTypes.DV_STRING;
case Types.BIT:
case Types.TINYINT:
case Types.SMALLINT:
return VirtuosoTypes.DV_SHORT_INT;
case Types.INTEGER:
return VirtuosoTypes.DV_LONG_INT;
case Types.REAL:
return VirtuosoTypes.DV_SINGLE_FLOAT;
case Types.DOUBLE:
return VirtuosoTypes.DV_DOUBLE_FLOAT;
case Types.CHAR:
return VirtuosoTypes.DV_CHARACTER;
case Types.ARRAY:
return VirtuosoTypes.DV_LIST_OF_POINTER;
case Types.OTHER:
return VirtuosoTypes.DV_OBJECT_REFERENCE;
case Types.BLOB:
case Types.CLOB:
return VirtuosoTypes.DV_BLOB;
case Types.BINARY:
case Types.VARBINARY:
return VirtuosoTypes.DV_BIN;
case Types.LONGVARBINARY:
return VirtuosoTypes.DV_LONG_BIN;
case Types.BIGINT:
case Types.NUMERIC:
case Types.DECIMAL:
return VirtuosoTypes.DV_NUMERIC;
case Types.TIMESTAMP:
return VirtuosoTypes.DV_TIMESTAMP;
case Types.DATE:
return VirtuosoTypes.DV_DATETIME;
case Types.TIME:
return VirtuosoTypes.DV_TIME;
default:
//System.out.println("SQL Types not defined.");
throw new VirtuosoException("SQL Type " + type + " not defined.", VirtuosoException.BADTAG);
}
}
}
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