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}