blob: 0fb213dc3516155878730b3975cd69424f4c2d34 [file] [log] [blame]
package org.apache.jcs.engine.behavior;
/*
* Copyright 2001-2004 The Apache Software Foundation.
*
* 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.
*/
import java.io.IOException;
import org.apache.jcs.engine.behavior.ICacheListener;
/**
* Used to register interest in receiving cache changes. <br>
* <br>
* Note: server which implements this interface provides a local cache event
* notification service, whereas server which implements IRmiCacheWatch provides
* a remote cache event notification service.
*
*/
public interface ICacheObserver
{
/**
* Subscribes to the specified cache.
*
* @param cacheName the specified cache.
* @param obj object to notify for cache changes.
*/
public void addCacheListener( String cacheName, ICacheListener obj )
throws IOException;
//, CacheNotFoundException;
/**
* Subscribes to all caches.
*
* @param obj object to notify for all cache changes.
*/
public void addCacheListener( ICacheListener obj )
throws IOException;
/**
* Unsubscribes from the specified cache.
*
* @param obj existing subscriber.
*/
public void removeCacheListener( String cacheName, ICacheListener obj )
throws IOException;
/**
* Unsubscribes from all caches.
*
* @param obj existing subscriber.
*/
public void removeCacheListener( ICacheListener obj )
throws IOException;
}