com.gwtplatform.dispatch.shared.AbstractUpdateResult Maven / Gradle / Ivy
/**
* Copyright 2010 ArcBees Inc.
*
* Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.gwtplatform.dispatch.shared;
/**
* Provides support for simple update response which contain both the old value
* and new value.
*
* @author David Peterson
*
* @param The value type.
*/
public abstract class AbstractUpdateResult implements Result {
private T newValue;
private T oldValue;
public AbstractUpdateResult(T oldValue, T newValue) {
this.oldValue = oldValue;
this.newValue = newValue;
}
/**
* For serialization support only. Subclasses should provide an package-local
* (aka default) empty constructor.
*/
protected AbstractUpdateResult() {
}
/**
* The new/current value.
*
* @return The new value.
*/
public T getNew() {
return newValue;
}
/**
* The previous value.
*
* @return The old value.
*/
public T getOld() {
return oldValue;
}
}