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ActiveMQ example source code file (TopicSubContainer.java)

This example ActiveMQ source code file (TopicSubContainer.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 - ActiveMQ tags/keywords

consumermessageref, consumermessageref, iterator, mapcontainer, mapcontainer, storeentry, storeentry, topicsubcontainer, topicsubcontainer, util

The ActiveMQ TopicSubContainer.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.activemq.store.kahadaptor;

import java.util.Iterator;

import org.apache.activemq.command.MessageId;
import org.apache.activemq.kaha.MapContainer;
import org.apache.activemq.kaha.StoreEntry;

/**
 * Holds information for the subscriber
 * 
 * 
 */
public class TopicSubContainer {
    private transient MapContainer mapContainer;
    private transient StoreEntry batchEntry;

    public TopicSubContainer(MapContainer container) {
        this.mapContainer = container;
    }

    /**
     * @return the batchEntry
     */
    public StoreEntry getBatchEntry() {
        return this.batchEntry;
    }

    /**
     * @param id
     * @param batchEntry the batchEntry to set
     */
    public void setBatchEntry(String id, StoreEntry batchEntry) {
        this.batchEntry = batchEntry;
    }

    public void reset() {
        batchEntry = null;
    }

    public boolean isEmpty() {
        return mapContainer.isEmpty();
    }

    public StoreEntry add(ConsumerMessageRef ref) {
        return mapContainer.place(ref.getMessageId(),ref);
    }

    public ConsumerMessageRef remove(MessageId id) {
        ConsumerMessageRef result = null;
        StoreEntry entry = mapContainer.getEntry(id);
        if (entry != null) {
            result = (ConsumerMessageRef) mapContainer.getValue(entry);
            mapContainer.remove(entry);
            if (batchEntry != null && batchEntry.equals(entry)) {
                reset();
            }
        }
        if(mapContainer.isEmpty()) {
            reset();
        }
        return result;
    }
    
    
    public ConsumerMessageRef get(StoreEntry entry) {
        return (ConsumerMessageRef)mapContainer.getValue(entry);
    }

    public StoreEntry getEntry() {
        return mapContainer.getFirst();
    }

    public StoreEntry refreshEntry(StoreEntry entry) {
        return mapContainer.refresh(entry);
    }

    public StoreEntry getNextEntry(StoreEntry entry) {
        return mapContainer.getNext(entry);
    }

    public Iterator iterator() {
        return mapContainer.values().iterator();
    }

    public int size() {
        return mapContainer.size();
    }

    public void clear() {
        reset();
        mapContainer.clear();
    }
}

Other ActiveMQ examples (source code examples)

Here is a short list of links related to this ActiveMQ TopicSubContainer.java source code file:

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