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 */
017 package org.apache.activemq.broker.region.policy;
018
019 import org.apache.activemq.broker.Broker;
020 import org.apache.activemq.broker.region.Subscription;
021 import org.apache.activemq.broker.region.cursors.PendingMessageCursor;
022
023 /**
024 * Abstraction to allow different policies for holding messages awaiting
025 * dispatch to active clients
026 *
027 *
028 */
029 public interface PendingSubscriberMessageStoragePolicy {
030
031 /**
032 * Retrieve the configured pending message storage cursor;
033 * @param broker
034 *
035 * @param name
036 * @param maxBatchSize
037 * @return the Pending Message cursor
038 */
039 PendingMessageCursor getSubscriberPendingMessageCursor(Broker broker,String name,int maxBatchSize,Subscription subs);
040 }