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ActiveMQ example source code file (Cache.java)

This example ActiveMQ source code file (Cache.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - ActiveMQ tags/keywords

cache, cache, object, object

The ActiveMQ Cache.java source code

/**
 * 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.activemq.memory;

/**
 * Defines the interface used to cache messages.
 * 
 * 
 */
public interface Cache {

    /**
     * Gets an object that was previously <code>put into this object.
     * 
     * @param msgid
     * @return null if the object was not previously put or if the object has
     *         expired out of the cache.
     */
    Object get(Object key);

    /**
     * Puts an object into the cache.
     * 
     * @param messageID
     * @param message
     */
    Object put(Object key, Object value);

    /**
     * Removes an object from the cache.
     * 
     * @param messageID
     * @return the object associated with the key if it was still in the cache.
     */
    Object remove(Object key);

    /**
     * Lets a cache know it will not be used any further and that it can release
     * acquired resources
     */
    void close();

    /**
     * How big is the cache right now?
     * 
     * @return
     */
    int size();

}

Other ActiveMQ examples (source code examples)

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