org.apache.cxf.ws.rm.RetransmissionQueue Maven / Gradle / Ivy
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.cxf.ws.rm;
import org.apache.cxf.message.Message;
public interface RetransmissionQueue {
String DEFAULT_BASE_RETRANSMISSION_INTERVAL = "3000";
int DEFAULT_EXPONENTIAL_BACKOFF = 2;
/**
* @param seq the sequence under consideration
* @return the number of unacknowledged messages for that sequence
*/
int countUnacknowledged(SourceSequence seq);
/**
* @return true if there are no unacknowledged messages in the queue
*/
boolean isEmpty();
/**
* Accepts a new context for posible future retransmission.
* @param ctx the message context.
*/
void addUnacknowledged(Message message);
/**
* Purge all candidates for the given sequence that have been acknowledged.
*
* @param seq the sequence object.
*/
void purgeAcknowledged(SourceSequence seq);
/**
* Initiate resends.
*
*/
void start();
/**
* Stops retransmission queue.
*/
void stop(SourceSequence seq);
}