| package org.apache.commons.jcs.engine; |
| |
| import java.io.IOException; |
| |
| /* |
| * 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. |
| */ |
| |
| import org.apache.commons.jcs.engine.behavior.ICache; |
| import org.apache.commons.jcs.engine.behavior.ICacheElement; |
| import org.apache.commons.jcs.engine.behavior.ICacheListener; |
| |
| /** |
| * Used for Cache-to-Cache messaging purposes. These are used in the balking |
| * facades in the lateral and remote caches. |
| */ |
| public class CacheAdaptor<K, V> |
| implements ICacheListener<K, V> |
| { |
| /** The cache we are adapting. */ |
| private final ICache<K, V> cache; |
| |
| /** The unique id of this listener. */ |
| private long listenerId = 0; |
| |
| /** |
| * Sets the listenerId attribute of the CacheAdaptor object |
| * <p> |
| * @param id |
| * The new listenerId value |
| * @throws IOException |
| */ |
| @Override |
| public void setListenerId( long id ) |
| throws IOException |
| { |
| this.listenerId = id; |
| } |
| |
| /** |
| * Gets the listenerId attribute of the CacheAdaptor object |
| * <p> |
| * @return The listenerId value |
| * @throws IOException |
| */ |
| @Override |
| public long getListenerId() |
| throws IOException |
| { |
| return this.listenerId; |
| } |
| |
| /** |
| * Constructor for the CacheAdaptor object |
| * <p> |
| * @param cache |
| */ |
| public CacheAdaptor( ICache<K, V> cache ) |
| { |
| this.cache = cache; |
| } |
| |
| /** |
| * Puts an item into the cache. |
| * <p> |
| * @param item |
| * @throws IOException |
| */ |
| @Override |
| public void handlePut( ICacheElement<K, V> item ) |
| throws IOException |
| { |
| try |
| { |
| cache.update( item ); |
| } |
| catch ( IOException e ) |
| { |
| // swallow |
| } |
| } |
| |
| /** |
| * Removes an item. |
| * <p> |
| * @param cacheName |
| * @param key |
| * @throws IOException |
| */ |
| @Override |
| public void handleRemove( String cacheName, K key ) |
| throws IOException |
| { |
| cache.remove( key ); |
| } |
| |
| /** |
| * Clears the region. |
| * <p> |
| * @param cacheName |
| * @throws IOException |
| */ |
| @Override |
| public void handleRemoveAll( String cacheName ) |
| throws IOException |
| { |
| cache.removeAll(); |
| } |
| |
| /** |
| * Shutdown call. |
| * <p> |
| * @param cacheName |
| * @throws IOException |
| */ |
| @Override |
| public void handleDispose( String cacheName ) |
| throws IOException |
| { |
| cache.dispose(); |
| } |
| } |