/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.cocoon.caching.validity;
import java.io.Serializable;
/**
* Base class encapsulating the information about an external
* uncache event.
*
* @author Geoff Howard (ghoward@apache.org)
* @version $Id$
*/
public abstract class Event implements Serializable {
/**
* Used by EventValidity for equals(Object o) which
* is important for determining whether a received event
* should uncache a held Pipeline key.
*
* @param e Another Event to compare.
* @return true if
*/
public abstract boolean equals(Event e);
/**
* This hash code is the only way the system can locate
* matching Events when a new event notification is received.
*/
public abstract int hashCode();
public boolean equals(Object o) {
if (o instanceof Event) {
return equals((Event)o);
}
return false;
}
}