Apache CXF example source code file (RetransmissionQueue.java)

This example Apache CXF source code file (RetransmissionQueue.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Apache CXF tags/keywords

default_base_retransmission_interval, default_base_retransmission_interval, default_exponential_backoff, default_exponential_backoff, retransmissionqueue, retransmissionqueue, string, string

The Apache CXF RetransmissionQueue.java source code

/**
 * 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);
    
    
}