Examples of CopyOnWriteArraySet

EDU.oswego.cs.dl.util.concurrent.CopyOnWriteArraySet
s.oswego.edu/dl/classes/EDU/oswego/cs/dl/util/concurrent/intro.html"> Introduction to this package. ] @see CopyOnWriteArrayList
edu.emory.mathcs.backport.java.util.concurrent.CopyOnWriteArraySet
A {@link java.util.Set} that uses an internal {@link CopyOnWriteArrayList}for all of its operations. Thus, it shares the same basic properties:
- It is best suited for applications in which set sizes generally stay small, read-only operations vastly outnumber mutative operations, and you need to prevent interference among threads during traversal.
- It is thread-safe.
- Mutative operations (add, set, remove, etc.) are expensive since they usually entail copying the entire underlying array.
- Iterators do not support the mutative remove operation.
- Traversal via iterators is fast and cannot encounter interference from other threads. Iterators rely on unchanging snapshots of the array at the time the iterators were constructed.
Sample Usage. The following code sketch uses a copy-on-write set to maintain a set of Handler objects that perform some action upon state updates.
```
 class Handler { void handle(); ... } class X { private final CopyOnWriteArraySet<Handler> handlers = new CopyOnWriteArraySet<Handler>(); public void addHandler(Handler h) { handlers.add(h); } private long internalState; private synchronized void changeState() { internalState = ...; } public void update() { changeState(); for (Handler handler : handlers) handler.handle(); } } 
```
This class is a member of the Java Collections Framework. @see CopyOnWriteArrayList @since 1.5 @author Doug Lea
java.util.concurrent.CopyOnWriteArraySet
A {@link java.util.Set} that uses an internal {@link CopyOnWriteArrayList}for all of its operations. Thus, it shares the same basic properties:
- It is best suited for applications in which set sizes generally stay small, read-only operations vastly outnumber mutative operations, and you need to prevent interference among threads during traversal.
- It is thread-safe.
- Mutative operations ( {@code add}, {@code set}, {@code remove}, etc.) are expensive since they usually entail copying the entire underlying array.
- Iterators do not support the mutative {@code remove} operation.
- Traversal via iterators is fast and cannot encounter interference from other threads. Iterators rely on unchanging snapshots of the array at the time the iterators were constructed.
Sample Usage. The following code sketch uses a copy-on-write set to maintain a set of Handler objects that perform some action upon state updates.
```
  {@code}class Handler  void handle(); ... } class X { private final CopyOnWriteArraySet handlers = new CopyOnWriteArraySet(); public void addHandler(Handler h) { handlers.add(h); } private long internalState; private synchronized void changeState() { internalState = ...; } public void update() { changeState(); for (Handler handler : handlers) handler.handle(); } }}
```
This class is a member of the Java Collections Framework. @see CopyOnWriteArrayList @since 1.5 @author Doug Lea @param < E> the type of elements held in this collection
js.util.concurrent.CopyOnWriteArraySet
@version 2013/10/11 10:30:48

Examples of EDU.oswego.cs.dl.util.concurrent.CopyOnWriteArraySet

    
    private void updateActiveProducers(ProducerInfo info) {
        Set set = (Set) activeProducers.get(info.getDestination());
        if (info.isStarted()) {
            if (set == null) {
                set = new CopyOnWriteArraySet();
                activeProducers.put(info.getDestination(), set);
            }
            set.add(info);
        }
        else {

View Full Code Here

Examples of EDU.oswego.cs.dl.util.concurrent.CopyOnWriteArraySet

        this.clientIds = new ConcurrentHashMap();
        this.consumerInfos = new ConcurrentHashMap();
        this.producerInfos = new ConcurrentHashMap();
        this.transportConnectors = new CopyOnWriteArrayList();
        this.networkConnectors = new CopyOnWriteArrayList();
        this.remoteClientIds = new CopyOnWriteArraySet();
        this.broker.addCapacityEventListener(this);


        // lets register ourselves with the context
        context.registerContainer(broker.getBrokerName(), this);
    }

View Full Code Here

Examples of EDU.oswego.cs.dl.util.concurrent.CopyOnWriteArraySet

    protected void initializeOther(AbstractPacket other) {
        initializeBrokersVisited();
        other.id = this.id;
        other.receiptRequired = this.receiptRequired;
        other.memoryUsage = this.memoryUsage;
        CopyOnWriteArraySet set = this.brokersVisited;
        if (set != null && !set.isEmpty()){
            other.brokersVisited = new CopyOnWriteArraySet(set);
        }
    }

View Full Code Here

Examples of EDU.oswego.cs.dl.util.concurrent.CopyOnWriteArraySet

        }
    }
    
    synchronized void initializeBrokersVisited(){
        if (this.brokersVisited == null){
            this.brokersVisited = new CopyOnWriteArraySet();
        }
    }

View Full Code Here

Examples of EDU.oswego.cs.dl.util.concurrent.CopyOnWriteArraySet

        this.clientIds = new ConcurrentHashMap();
        this.consumerInfos = new ConcurrentHashMap();
        this.producerInfos = new ConcurrentHashMap();
        this.transportConnectors = new CopyOnWriteArrayList();
        this.networkConnectors = new CopyOnWriteArrayList();
        this.remoteClientIds = new CopyOnWriteArraySet();
        this.broker.addCapacityEventListener(this);


        // lets register ourselves with the context
        context.registerContainer(broker.getBrokerName(), this);
        //register ourselves for vm:// transports

View Full Code Here

Examples of EDU.oswego.cs.dl.util.concurrent.CopyOnWriteArraySet

    private void processTempDestinationAdvisory(TempDestinationAdvisoryEvent event) {
        String clientId = ActiveMQDestination.getClientId(event.getDestination());
        Set set = (Set) tempDestinations.get(clientId);
        if (event.isStarted()) {
            if (set == null) {
                set = new CopyOnWriteArraySet();
                tempDestinations.put(clientId, set);
            }
            set.add(event);
        }
        else {

View Full Code Here

Examples of EDU.oswego.cs.dl.util.concurrent.CopyOnWriteArraySet

    private void processTempDestinationAdvisory(TempDestinationAdvisoryEvent event) {
        String clientId = ActiveMQDestination.getClientId(event.getDestination());
        Set set = (Set) tempDestinations.get(clientId);
        if (event.isStarted()) {
            if (set == null) {
                set = new CopyOnWriteArraySet();
                tempDestinations.put(clientId, set);
            }
            set.add(event);
        }
        else {

View Full Code Here

Examples of EDU.oswego.cs.dl.util.concurrent.CopyOnWriteArraySet

/*      */   private final JBossNotificationBroadcasterSupport broadcaster;
/*      */   private MBeanNotificationInfo[] info;
/*      */ 
/*      */   public UnifiedLoaderRepositoryDCL()
/*      */   {
/*   88 */     this.classLoaders = new CopyOnWriteArraySet();
/*      */ 
/*   93 */     this.dynamicClassLoaders = new HashSet();
/*      */ 
/*   99 */     this.nonUCLClassLoader = new HashMap();
/*      */

View Full Code Here

Examples of EDU.oswego.cs.dl.util.concurrent.CopyOnWriteArraySet

/*      */   private final JBossNotificationBroadcasterSupport broadcaster;
/*      */   private MBeanNotificationInfo[] info;
/*      */ 
/*      */   public UnifiedLoaderRepository3()
/*      */   {
/*   96 */     this.classLoaders = new CopyOnWriteArraySet();
/*      */ 
/*  101 */     this.dynamicClassLoaders = new HashSet();
/*      */ 
/*  107 */     this.nonUCLClassLoader = new HashMap();
/*      */

View Full Code Here

Examples of edu.emory.mathcs.backport.java.util.concurrent.CopyOnWriteArraySet


    private void addRemotePacket(String containerName, ComponentPacket packet) {
        networkComponentKeyMap.put(packet.getComponentNameSpace(), containerName);
        Set set = (Set) networkNodeKeyMap.get(containerName);
        if (set == null) {
            set = new CopyOnWriteArraySet();
            networkNodeKeyMap.put(containerName, set);
        }
        ComponentConnector cc = new ComponentConnector(packet);
        log.info("Adding Remote Component: " + cc);
        broker.getRegistry().addRemoteComponentConnector(cc);

View Full Code Here

0 1 2 3 4 5

TOP

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.