/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2008, Red Hat Middleware LLC or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat Middleware LLC.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* 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 Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.hibernate.envers.entities;
import java.io.Serializable;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Types;
import org.hibernate.envers.RevisionType;
import org.hibernate.HibernateException;
import org.hibernate.usertype.UserType;
/**
* A hibernate type for the {@link RevisionType} enum.
* @author Adam Warski (adam at warski dot org)
*/
public class RevisionTypeType implements UserType, Serializable {
private static final long serialVersionUID = -1053201518229282688L;
private static final int[] SQL_TYPES = { Types.TINYINT };
public int[] sqlTypes() {
return SQL_TYPES;
}
public Class returnedClass() {
return RevisionType.class;
}
public RevisionType nullSafeGet(ResultSet resultSet, String[] names, Object owner) throws HibernateException, SQLException {
byte representation = (byte) resultSet.getInt(names[0]);
RevisionType result = null;
if (!resultSet.wasNull()) {
result = RevisionType.fromRepresentation(representation);
}
return result;
}
public void nullSafeSet(PreparedStatement preparedStatement, Object value, int index) throws HibernateException, SQLException {
if (null == value) {
preparedStatement.setNull(index, Types.TINYINT);
} else {
preparedStatement.setInt(index, ((RevisionType) value).getRepresentation());
}
}
public Object deepCopy(Object value) throws HibernateException{
return value;
}
public boolean isMutable() {
return false;
}
public Object assemble(Serializable cached, Object owner) throws HibernateException {
return cached;
}
public Serializable disassemble(Object value) throws HibernateException {
return (Serializable)value;
}
public Object replace(Object original, Object target, Object owner) throws HibernateException {
return original;
}
public int hashCode(Object x) throws HibernateException {
return x.hashCode();
}
public boolean equals(Object x, Object y) throws HibernateException {
//noinspection ObjectEquality
if (x == y) {
return true;
}
if (null == x || null == y) {
return false;
}
return x.equals(y);
}
}