/*******************************************************************************
* Copyright (c) 1998, 2015 Oracle and/or its affiliates. All rights reserved.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
* which accompanies this distribution.
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* Contributors:
* Oracle - initial API and implementation from Oracle TopLink
******************************************************************************/
package org.eclipse.persistence.annotations;
/**
* An enum that is used within the ChangeTracking annotation.
*
* @see org.eclipse.persistence.annotations.ChangeTracking
* @author Guy Pelletier
* @since Oracle TopLink 11.1.1.0.0
*/
public enum ChangeTrackingType {
/**
* An ATTRIBUTE change tracking type allows change tracking at the attribute
* level of an object. Objects with changed attributes will be processed in
* the commit process to include any changes in the results of the commit.
* Unchanged objects will be ignored.
*/
ATTRIBUTE,
/**
* An OBJECT change tracking policy allows an object to calculate for itself
* whether it has changed. Changed objects will be processed in the commit
* process to include any changes in the results of the commit.
* Unchanged objects will be ignored.
*/
OBJECT,
/**
* A DEFERRED change tracking policy defers all change detection to the
* UnitOfWork's change detection process. Essentially, the calculateChanges()
* method will run for all objects in a UnitOfWork.
* This is the default ObjectChangePolicy
*/
DEFERRED,
/**
* Will not set any change tracking policy, and the change tracking will be
* determined at runtime.
*/
AUTO
}