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.Queue;
021import org.apache.activemq.broker.region.cursors.PendingMessageCursor;
022
023/**
024 * Abstraction to allow different policies for holding messages awaiting
025 * dispatch on a Queue
026 * 
027 * 
028 */
029public interface PendingQueueMessageStoragePolicy {
030
031    /**
032     * Retrieve the configured pending message storage cursor;
033     * @param broker 
034     * 
035     * @param queue
036     * @return the cursor
037     */
038    PendingMessageCursor getQueuePendingMessageCursor(Broker broker,Queue queue);
039}