001/**
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.activemq.broker.region.policy;
018
019import org.apache.activemq.broker.Broker;
020import org.apache.activemq.broker.region.DurableTopicSubscription;
021import org.apache.activemq.broker.region.Subscription;
022import org.apache.activemq.broker.region.cursors.AbstractPendingMessageCursor;
023import org.apache.activemq.broker.region.cursors.PendingMessageCursor;
024import org.apache.activemq.broker.region.cursors.VMPendingMessageCursor;
025
026/**
027 * Creates a VMPendingMessageCursor *
028 * 
029 * @org.apache.xbean.XBean element="vmDurableCursor" description="Pending
030 *                         messages held in the JVM"
031 * 
032 */
033public class VMPendingDurableSubscriberMessageStoragePolicy implements PendingDurableSubscriberMessageStoragePolicy {
034
035    /**
036     * Retrieve the configured pending message storage cursor;
037     * @param broker 
038     * @param clientId
039     * @param name
040     * @param maxBatchSize
041     * @param sub 
042     * @return the Pending Message cursor
043     */
044    public PendingMessageCursor getSubscriberPendingMessageCursor(Broker broker,String clientId, String name,int maxBatchSize, DurableTopicSubscription sub) {
045        return new VMPendingMessageCursor(AbstractPendingMessageCursor.isPrioritizedMessageSubscriber(broker, sub));
046    }
047}