org.hibernate.envers.RevisionType Maven / Gradle / Ivy
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2008, 2013, Red Hat Inc. 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 Inc.
*
* 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;
}
default: {
throw new IllegalArgumentException( "Unknown representation: " + representation );
}
}
}
}