Examples of net.sf.ehcache.event.CacheEventListener

net.sf.ehcache.event.CacheEventListener
Allows implementers to register callback methods that will be executed when a cache event occurs. The events include:
1. put Element
2. update Element
3. remove Element
4. evict Element
5. an Element expires, either because timeToLive or timeToIdle has been reached.
6. removeAll, which causes all elements to be cleared from the cache
Callbacks to these methods are synchronous and unsynchronized. It is the responsibility of the implementer to safely handle the potential performance and thread safety issues depending on what their listener is doing.
Cache also has putQuiet and removeQuiet methods which do not notify listeners. @author Greg Luck @version $Id: CacheEventListener.java 744 2008-08-16 20:10:49Z gregluck $ @see CacheManagerEventListener @since 1.2

        return;
    }
    
    public void addEventListener(final JetspeedCacheEventListener listener, final boolean local)
    {
        CacheEventListener cacheEventListener = new CacheEventListener()
        {
           public void notifyElementEvicted(Ehcache cache, Element element)
           {
               listener.notifyElementEvicted(EhCacheImpl.this, local, element.getKey(), element.getObjectValue());
           }

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        ehcache.getCacheEventNotificationService().registerListener(cacheEventListener);
    }
    
    public void removeEventListener(JetspeedCacheEventListener listener, boolean local)
    {
        CacheEventListener cacheEventListener = this.cacheEventListenersMap.remove(listener);
        
        if (cacheEventListener != null)
            ehcache.getCacheEventNotificationService().unregisterListener(cacheEventListener);
    }

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                                                 RegisteredEventListeners registeredEventListeners) {
        List cacheEventListenerConfigurations = cacheConfiguration.getCacheEventListenerConfigurations();
        for (Object cacheEventListenerConfiguration : cacheEventListenerConfigurations) {
            CacheConfiguration.CacheEventListenerFactoryConfiguration factoryConfiguration =
                    (CacheConfiguration.CacheEventListenerFactoryConfiguration) cacheEventListenerConfiguration;
            CacheEventListener cacheEventListener = createCacheEventListener(factoryConfiguration);
            registeredEventListeners.registerListener(cacheEventListener);
        }
    }

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     * @param factoryConfiguration
     */
    private static CacheEventListener createCacheEventListener(
            CacheConfiguration.CacheEventListenerFactoryConfiguration factoryConfiguration) {
        String className = null;
        CacheEventListener cacheEventListener = null;
        if (factoryConfiguration != null) {
            className = factoryConfiguration.getFullyQualifiedClassPath();
        }
        if (className == null) {
            LOG.fine("CacheEventListener factory not configured. Skipping...");

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     * @return true if a <code>CacheReplicator</code> is found in the listeners
     */
    protected boolean isDistributed(Ehcache cache) {
        Set listeners = cache.getCacheEventNotificationService().getCacheEventListeners();
        for (Iterator iterator = listeners.iterator(); iterator.hasNext();) {
            CacheEventListener cacheEventListener = (CacheEventListener) iterator.next();
            if (cacheEventListener instanceof CacheReplicator) {
                return true;
            }
        }
        return false;

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            copy.registeredEventListeners = new RegisteredEventListeners(copy);
        } else {
            copy.registeredEventListeners = new RegisteredEventListeners(copy);
            Set cacheEventListeners = registeredEventListeners.getCacheEventListeners();
            for (Object cacheEventListener1 : cacheEventListeners) {
                CacheEventListener cacheEventListener = (CacheEventListener) cacheEventListener1;
                CacheEventListener cacheEventListenerClone = (CacheEventListener) cacheEventListener.clone();
                copy.registeredEventListeners.registerListener(cacheEventListenerClone);
            }
        }

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        return;
    }
    
    public void addEventListener(final JetspeedCacheEventListener listener, final boolean local)
    {
        CacheEventListener cacheEventListener = new CacheEventListener()
        {
           public void notifyElementEvicted(Ehcache cache, Element element)
           {
               listener.notifyElementEvicted(EhCacheImpl.this, local, element.getKey(), element.getObjectValue());
           }

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        ehcache.getCacheEventNotificationService().registerListener(cacheEventListener);
    }
    
    public void removeEventListener(JetspeedCacheEventListener listener, boolean local)
    {
        CacheEventListener cacheEventListener = (CacheEventListener)this.cacheEventListenersMap.remove(listener);
        
        if (cacheEventListener != null)
            ehcache.getCacheEventNotificationService().unregisterListener(cacheEventListener);
    }

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        /**
         * Always resolves to the same delegate object, no need for thread-sync checks
         */
        private CacheEventListener getDelegate() {
            CacheEventListener d = this.delegate;
            if (d == null) {
                //Need a local reference here to avoid locking around cacheEventListeners reference changes
                final Map<String, CacheEventListener> cel = cacheEventListeners;
                if (cel == null) {
                    //either pre-init or post-destroy, return noop logger
                    return NOOP_CACHE_EVENT_LISTENER;
                }
                
                final CacheEventListener cacheEventListener = cel.get(beanName);
                if (cacheEventListener == null) {
                    //If no listener is found just use the noop listener
                    LOGGER.warn("No CacheEventListener bean found for name '" + beanName + "', using NOOP CacheEventListener instead.");
                    d = NOOP_CACHE_EVENT_LISTENER;
                }

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            copy.registeredEventListeners = new RegisteredEventListeners(copy);
        } else {
            copy.registeredEventListeners = new RegisteredEventListeners(copy);
            Set cacheEventListeners = registeredEventListeners.getCacheEventListeners();
            for (Object cacheEventListener1 : cacheEventListeners) {
                CacheEventListener cacheEventListener = (CacheEventListener) cacheEventListener1;
                CacheEventListener cacheEventListenerClone = (CacheEventListener) cacheEventListener.clone();
                copy.registeredEventListeners.registerListener(cacheEventListenerClone);
            }
        }

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