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ActiveMQ example source code file (ReferenceStore.java)

This example ActiveMQ source code file (ReferenceStore.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

io, ioexception, ioexception, lock, lock, messageid, messagestore, override, referencedata, referencedata, referencestore, string, string

The ActiveMQ ReferenceStore.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.store;

import java.io.IOException;
import java.util.concurrent.locks.Lock;

import org.apache.activemq.broker.ConnectionContext;
import org.apache.activemq.command.MessageId;

/**
 * Represents a message store which is used by the persistent implementations
 * 
 * 
 */
public interface ReferenceStore extends MessageStore {

    public class ReferenceData {
        long expiration;
        int fileId;
        int offset;

        public long getExpiration() {
            return expiration;
        }

        public void setExpiration(long expiration) {
            this.expiration = expiration;
        }

        public int getFileId() {
            return fileId;
        }

        public void setFileId(int file) {
            this.fileId = file;
        }

        public int getOffset() {
            return offset;
        }

        public void setOffset(int offset) {
            this.offset = offset;
        }

        @Override
        public String toString() {
            return "ReferenceData fileId=" + fileId + ", offset=" + offset + ", expiration=" + expiration;
        }
    }

    /**
     * Adds a message reference to the message store
     * @return true if reference was added, false if it is a duplicate and not added
     */
    boolean addMessageReference(ConnectionContext context, MessageId messageId, ReferenceData data) throws IOException;

    /**
     * Looks up a message using either the String messageID or the
     * messageNumber. Implementations are encouraged to fill in the missing key
     * if its easy to do so.
     */
    ReferenceData getMessageReference(MessageId identity) throws IOException;

    /**
     * @return true if it supports external batch control
     */
    boolean supportsExternalBatchControl();

    void setBatch(MessageId startAfter);
    
    Lock getStoreLock();
    
}

Other ActiveMQ examples (source code examples)

Here is a short list of links related to this ActiveMQ ReferenceStore.java source code file:

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