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ActiveMQ example source code file (MessageBuffer.java)

This example ActiveMQ source code file (MessageBuffer.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

messagebuffer, messagebuffer, messagequeue, messagequeue

The ActiveMQ MessageBuffer.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,
 * See the License for the specific language governing permissions and
 * limitations under the License.

package org.apache.activemq.memory.buffer;

 * Represents a collection of MessageQueue instances which are all bound by the
 * same memory buffer to fix the amount of RAM used to some uppper bound.
public interface MessageBuffer {

    int getSize();

     * Creates a new message queue instance
    MessageQueue createMessageQueue();

     * After a message queue has changed we may need to perform some evictions
     * @param delta
     * @param queueSize
    void onSizeChanged(MessageQueue queue, int delta, int queueSize);

    void clear();


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