/*
* Copyright 2002-2005 the original author or authors.
*
* 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 org.springframework.aop.framework;
/**
* This interface can be implemented by cacheable objects or cache entries,
* to enable the freshness of objects to be checked.
*
* @author Rod Johnson
*/
public interface TimeStamped {
/**
* Return the timestamp for this object.
* @return long the timestamp for this object,
* as returned by System.currentTimeMillis()
*/
long getTimeStamp();
}