nextapp.echo.app.update.PropertyUpdate Maven / Gradle / Ivy
/*
* This file is part of the Echo Web Application Framework (hereinafter "Echo").
* Copyright (C) 2002-2009 NextApp, Inc.
*
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*/
package nextapp.echo.app.update;
import java.io.Serializable;
/**
* A description of an update to a property of an object.
*/
public class PropertyUpdate
implements Serializable {
/** Serial Version UID. */
private static final long serialVersionUID = 20070101L;
private Object newValue;
private Object oldValue;
/**
* Creates a new ProeprtyUpdate.
*
* @param oldValue the previous value of the property
* @param newValue the new value of the property
*/
PropertyUpdate(Object oldValue, Object newValue) {
super();
this.oldValue = oldValue;
this.newValue = newValue;
}
/**
* Returns the new value of the property.
*
* @return the new value
*/
public Object getNewValue() {
return newValue;
}
/**
* Returns the previous value of the property.
*
* @return the previous value
*/
public Object getOldValue() {
return oldValue;
}
/**
* Display a debug representation.
*
* @see java.lang.Object#toString()
*/
public String toString() {
return oldValue + "->" + newValue;
}
}