001 /**
002 *
003 * Copyright 2004 Protique Ltd
004 *
005 * Licensed under the Apache License, Version 2.0 (the "License");
006 * you may not use this file except in compliance with the License.
007 * 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 **/
018 package org.activemq.service;
019
020 /**
021 * Represents the redelivery policy which is used when a rollback() occurs
022 * (either JMS or XA). Various options are possible which this policy tries to capture
023 * the main variants.
024 * If enabled, a typical redelivery policy could be to use a back-off timeout period.
025 *
026 * @version $Revision: 1.1.1.1 $
027 */
028 public class RedeliveryPolicy {
029 private int maximumRetryCount = 5;
030 private boolean backOffMode = false;
031 private long initialRedeliveryTimeout = 1000L;
032 private double backOffIncreaseRate = 2.0;
033
034 /**
035 * Returns whether or not we use a back-off timeout (increasing the timeout
036 * by the {@link #getBackOffIncreaseRate()} each time).
037 */
038 public boolean isBackOffMode() {
039 return backOffMode;
040 }
041
042 public void setBackOffMode(boolean backOffMode) {
043 this.backOffMode = backOffMode;
044 }
045
046 /**
047 * Returns the initial redelivery timeout
048 */
049 public long getInitialRedeliveryTimeout() {
050 return initialRedeliveryTimeout;
051 }
052
053 public void setInitialRedeliveryTimeout(long initialRedeliveryTimeout) {
054 this.initialRedeliveryTimeout = initialRedeliveryTimeout;
055 }
056
057 /**
058 * Returns the maximum retry count on a single message before its forwarded
059 * to a Dead Letter Queue
060 */
061 public int getMaximumRetryCount() {
062 return maximumRetryCount;
063 }
064
065 public void setMaximumRetryCount(int maximumRetryCount) {
066 this.maximumRetryCount = maximumRetryCount;
067 }
068
069 public double getBackOffIncreaseRate() {
070 return backOffIncreaseRate;
071 }
072
073 public void setBackOffIncreaseRate(double backOffIncreaseRate) {
074 this.backOffIncreaseRate = backOffIncreaseRate;
075 }
076 }