/*
* $Id$
*
* Copyright 2006, The jCoderZ.org Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
* * Neither the name of the jCoderZ.org Project nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.jcoderz.commons.util;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Types;
import org.hibernate.HibernateException;
/**
*
* This class is used by the Hibernate binding for long based
* strong types.
*
* @author Andreas Mandel
*/
public abstract class LongUserTypeBase
extends UserTypeBase
{
private static final long serialVersionUID = 1L;
private static final int SQL_TYPE = Types.INTEGER;
private static final int[] SQL_TYPES = {SQL_TYPE};
/**
* {@inheritDoc}
*/
public Object nullSafeGet (ResultSet resultSet, String[] types,
Object owner)
throws HibernateException, SQLException
{
final int value = resultSet.getInt(types[0]);
final Object result;
if (resultSet.wasNull())
{
result = null;
}
else
{
result = fromLong(value);
}
return result;
}
/**
* Implement this method for the particular StrongType.
*
* @param value the long representation of the mapped class
* @return the instance of the mapped class
*/
public abstract Object fromLong (long value);
/**
* Implement this method for the particular StrongType.
*
* @param value the StrongType to be converted into its
* numeric representation.
* @return the long representation of the value given.
*/
public abstract long toLong (Object value);
/**
* {@inheritDoc}
*/
public void nullSafeSet (PreparedStatement statement, Object value,
int index)
throws HibernateException, SQLException
{
if (value != null)
{
statement.setLong(index, toLong(value));
}
else
{
statement.setNull(index, SQL_TYPE);
}
}
/**
* {@inheritDoc}
*/
public int[] sqlTypes ()
{
return (int[]) SQL_TYPES.clone();
}
}