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.emory.mathcs.backport.java.util.concurrent.CopyOnWriteArraySet


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

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

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

    public void stop() throws Exception {
        this.subscriptionRecoveryPolicy.stop();
    }
    
    public Message[] browse(){
        final Set result=new CopyOnWriteArraySet();
        try{
            if(store!=null){
                store.recover(new MessageRecoveryListener(){
                    public void recoverMessage(Message message) throws Exception{
                        result.add(message);
                    }


                    public void recoverMessageReference(String messageReference) throws Exception{}


                    public void finished(){}
                });
                Message[] msgs=subscriptionRecoveryPolicy.browse(getActiveMQDestination());
                if(msgs!=null){
                    for(int i=0;i<msgs.length;i++){
                        result.add(msgs[i]);
                    }
                }
            }
        }catch(Throwable e){
            log.warn("Failed to browse Topic: "+getActiveMQDestination().getPhysicalName(),e);
        }
        return (Message[]) result.toArray(new Message[result.size()]);
    }

View Full Code Here

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

    private Set flowLinks;
    
    public DotViewFlowListener() {
        setFile("ServiceMixFlow.dot");
        flow = new ConcurrentHashMap();
        flowLinks = new CopyOnWriteArraySet();
    }

View Full Code Here

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

    private boolean displayComponents = true;
    
    public DotViewFlowListener() {
        setFile("ServiceMixFlow.dot");
        flow = new ConcurrentHashMap();
        flowLinks = new CopyOnWriteArraySet();
        usedComponents = new CopyOnWriteArraySet();
        componentsAsConsumer = new CopyOnWriteArraySet();
    }

View Full Code Here

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

    public void stop() throws Exception {
        this.subscriptionRecoveryPolicy.stop();
    }
    
    public Message[] browse(){
        final Set result=new CopyOnWriteArraySet();
        try{
            if(store!=null){
                store.recover(new MessageRecoveryListener(){
                    public void recoverMessage(Message message) throws Exception{
                        result.add(message);
                    }


                    public void recoverMessageReference(String messageReference) throws Exception{}


                    public void finished(){}
                });
                Message[] msgs=subscriptionRecoveryPolicy.browse(getActiveMQDestination());
                if(msgs!=null){
                    for(int i=0;i<msgs.length;i++){
                        result.add(msgs[i]);
                    }
                }
            }
        }catch(Throwable e){
            log.warn("Failed to browse Topic: "+getActiveMQDestination().getPhysicalName(),e);
        }
        return (Message[]) result.toArray(new Message[result.size()]);
    }

View Full Code Here

Examples of java.util.concurrent.CopyOnWriteArraySet

     */
    public void addViewUpdateListener(ViewUpdateListener viewUpdateListener) {


        synchronized(viewUpdateListenersSync) {
            if (viewUpdateListeners==null)
                viewUpdateListeners = new CopyOnWriteArraySet();
            viewUpdateListeners.add(viewUpdateListener);
        }
    }

View Full Code Here

Examples of java.util.concurrent.CopyOnWriteArraySet

   * In separate inner class to avoid runtime dependency on JDK 1.5.
   */
  private static abstract class JdkConcurrentCollectionFactory {


    private static Set createCopyOnWriteArraySet() {
      return new CopyOnWriteArraySet();
    }

View Full Code Here

Examples of java.util.concurrent.CopyOnWriteArraySet

   * In separate inner class to avoid runtime dependency on JDK 1.5.
   */
  private static abstract class JdkConcurrentCollectionFactory {


    private static Set createCopyOnWriteArraySet() {
      return new CopyOnWriteArraySet();
    }

View Full Code Here

Examples of java.util.concurrent.CopyOnWriteArraySet

        _delegate.addRoot(corrRoot);
        return corrRoot;
    }
    
    public Set<Join<?,?>> getCorrelatedJoins() {
        return _corrJoins == null ? Collections.emptySet() : new CopyOnWriteArraySet(_corrJoins);
    }

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.