/*
* 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;
/**
* Type of the revision.
* @author Adam Warski (adam at warski dot org)
*/
public enum RevisionType {
/**
* Indicates that the entity was added (persisted) at that revision.
*/
ADD((byte) 0),
/**
* Indicates that the entity was modified (one or more of its fields) at that revision.
*/
MOD((byte) 1),
/**
* Indicates that the entity was deleted (removed) at that revision.
*/
DEL((byte) 2);
private Byte representation;
RevisionType(byte representation) {
this.representation = representation;
}
public Byte getRepresentation() {
return representation;
}
public static RevisionType fromRepresentation(Object representation) {
if (representation == null || !(representation instanceof Byte)) {
return null;
}
switch ((Byte) representation) {
case 0: return ADD;
case 1: return MOD;
case 2: return DEL;
}
throw new IllegalArgumentException("Unknown representation: " + representation);
}
}