/*
 * Copyright Terracotta, 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 org.ehcache.impl.internal.loaderwriter.writebehind.operations;

import org.ehcache.spi.loaderwriter.CacheLoaderWriter;

Implements the delete operation for write behind
Author:Geert Bevin, Tim wu
/** * Implements the delete operation for write behind * * @author Geert Bevin * @author Tim wu * */
public class DeleteOperation<K, V> implements SingleOperation<K, V> { private final K key; private final long creationTime;
Create a new delete operation for a particular entry
/** * Create a new delete operation for a particular entry * */
public DeleteOperation(K key) { this(key, System.nanoTime()); }
Create a new delete operation for a particular entry and creation time
/** * Create a new delete operation for a particular entry and creation time * */
public DeleteOperation(K key, long creationTime) { this.key = key; this.creationTime = creationTime; } public void performOperation(CacheLoaderWriter<K, V> cacheLoaderWriter) throws Exception { cacheLoaderWriter.delete(key); } @Override public K getKey() { return this.key; } @Override public long getCreationTime() { return creationTime; } @Override public int hashCode() { return getKey().hashCode(); } @Override public boolean equals(Object other) { if (other instanceof DeleteOperation) { return getCreationTime() == ((DeleteOperation<?, ?>) other).getCreationTime() && getKey().equals(((DeleteOperation<?, ?>) other).getKey()); } else { return false; } } }