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ActiveMQ example source code file (ReferenceStoreAdapter.java)

This example ActiveMQ source code file (ReferenceStoreAdapter.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

amqtx, amqtx, io, ioexception, ioexception, map, map, persistenceadapter, persistenceadapter, referencestore, referencestoreadapter, set, topicreferencestore, util

The ActiveMQ ReferenceStoreAdapter.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.Map;
import java.util.Set;

import org.apache.activemq.command.ActiveMQQueue;
import org.apache.activemq.command.ActiveMQTopic;
import org.apache.activemq.command.SubscriptionInfo;
import org.apache.activemq.command.TransactionId;
import org.apache.activemq.store.amq.AMQTx;

/**
 * Adapter to the actual persistence mechanism used with ActiveMQ
 * 
 * 
 */
public interface ReferenceStoreAdapter extends PersistenceAdapter {

    /**
     * Factory method to create a new queue message store with the given
     * destination name
     * 
     * @param destination
     * @return the QueueReferenceStore
     * @throws IOException
     */
    ReferenceStore createQueueReferenceStore(ActiveMQQueue destination) throws IOException;

    /**
     * Factory method to create a new topic message store with the given
     * destination name
     * 
     * @param destination
     * @return the TopicRefererenceStore
     * @throws IOException
     */
    TopicReferenceStore createTopicReferenceStore(ActiveMQTopic destination) throws IOException;

    /**
     * @return Set of File ids in use
     * @throws IOException
     */
    Set<Integer> getReferenceFileIdsInUse() throws IOException;

    /**
     * If the store isn't valid, it can be recoverd at start-up
     * 
     * @return true if the reference store is in a consistent state
     */
    boolean isStoreValid();

    /**
     * called by recover to clear out message references
     * 
     * @throws IOException
     */
    void clearMessages() throws IOException;

    /**
     * recover any state
     * 
     * @throws IOException
     */
    void recoverState() throws IOException;

    /**
     * Save prepared transactions
     * 
     * @param map
     * @throws IOException
     */
    void savePreparedState(Map<TransactionId, AMQTx> map) throws IOException;

    /**
     * @return saved prepared transactions
     * @throws IOException
     */
    Map<TransactionId, AMQTx> retrievePreparedState() throws IOException;
    
    /**
     * @return the maxDataFileLength
     */
    long getMaxDataFileLength();
    
    /**
     * set the max data length of a reference data log - if used
     * @param maxDataFileLength
     */
    void setMaxDataFileLength(long maxDataFileLength);
    
    /**
     * Recover particular subscription. Used for recovery of durable consumers
     * @param info
     * @throws IOException
     */
    void recoverSubscription(SubscriptionInfo info) throws IOException;
}

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