Hibernate example source code file (RevisionTypeType.java)

This example Hibernate source code file (RevisionTypeType.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Hibernate tags/keywords

class, hibernateexception, hibernateexception, integer, io, jdbc, object, object, revisiontype, revisiontypetype, serializable, serializable, sessionimplementor, sql, sql_types, sqlexception, sqlexception

The Hibernate RevisionTypeType.java source code

/*
 * 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.HibernateException;
import org.hibernate.engine.spi.SessionImplementor;
import org.hibernate.envers.RevisionType;
import org.hibernate.type.IntegerType;
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, SessionImplementor session, Object owner) throws HibernateException, SQLException {
		Integer representationInt = IntegerType.INSTANCE.nullSafeGet( resultSet, names[0], session );
		return representationInt == null ?
				null :
				RevisionType.fromRepresentation( representationInt.byteValue() );
    }

    public void nullSafeSet(PreparedStatement preparedStatement, Object value, int index, SessionImplementor session) throws HibernateException, SQLException {
		IntegerType.INSTANCE.nullSafeSet(
				preparedStatement,
				( value == null ? null : ((RevisionType) value).getRepresentation().intValue() ),
				index,
				session
		);
    }

    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);
    }
}