Examples of UpdateListenerHub

org.apache.tapestry5.services.UpdateListenerHub
Manages a set of {@link org.apache.tapestry5.services.UpdateListener}s. Periodically (say, every request during development, or every minute or so during production), request processing is locked down so that only a single thread is active, and the active thread invokes {@link #fireCheckForUpdates()}. Various services that are dependent on external resource files (such as classes or template files) can check to see if any file they've used has changed. If so, the service can invalidate its internal cache, or notify other services (typically via {@link org.apache.tapestry5.services.InvalidationListener} that they should do the same.
Note that this interface has moved from module tapestry-core to tapestry-ioc, but has kept the same package (for backwards compatibility reasons).
A weak reference to the listener is kept; this ensures that registering as a listener will not prevent a listener instance from being reclaimed by the garbage collector (this is useful as proxies created by {@link ObjectLocator#proxy(Class,Class)} may register as listeners, but still be ephemeral).
Starting in Tapestry 5.3, this services does nothing in production mode. @since 5.1.0.0

Examples of org.apache.tapestry5.services.UpdateListenerHub

            createSynthComponentClass("Updated");
        }


        // Detect the change and clear out the internal caches


        UpdateListenerHub hub = registry.getService("UpdateListenerHub", UpdateListenerHub.class);


        hub.fireCheckForUpdates();


        // This will be the new version of the class


        named = (Named) createComponent(SYNTH_COMPONENT_CLASSNAME);

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Examples of org.apache.tapestry5.services.UpdateListenerHub

            createSynthComponentClass("Updated");
        }


        // Detect the change and clear out the internal caches


        UpdateListenerHub hub = registry.getService("UpdateListenerHub", UpdateListenerHub.class);


        hub.fireCheckForUpdates();


        // This will be the new version of the class


        named = (Named) createComponent(SYNTH_COMPONENT_CLASSNAME);

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Examples of org.apache.tapestry5.services.UpdateListenerHub

            createSynthComponentClass("Updated");
        }


        // Detect the change and clear out the internal caches


        UpdateListenerHub hub = registry.getService("UpdateListenerHub", UpdateListenerHub.class);


        hub.fireCheckForUpdates();


        // This will be the new version of the class


        named = (Named) createComponent(SYNTH_COMPONENT_CLASSNAME);

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Examples of org.apache.tapestry5.services.UpdateListenerHub

    @Test
    public void add_listener_and_invoke() throws Exception
    {
        UpdateListener listener = newMock(UpdateListener.class);


        UpdateListenerHub hub = new UpdateListenerHubImpl();


        listener.checkForUpdates();


        replay();


        hub.addUpdateListener(listener);


        hub.fireCheckForUpdates();


        verify();
    }

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Examples of org.apache.tapestry5.services.UpdateListenerHub

            }
        };


        WeakReference<UpdateListener> ref = new WeakReference<UpdateListener>(listener);


        UpdateListenerHub hub = new UpdateListenerHubImpl();


        hub.addUpdateListener(listener);


        listener = null;


        while (ref.get() != null)
        {
            System.gc();
        }


        hub.fireCheckForUpdates();
    }

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Examples of org.apache.tapestry5.services.UpdateListenerHub

            createSynthComponentClass("Updated");
        }


        // Detect the change and clear out the internal caches


        UpdateListenerHub hub = registry.getService("UpdateListenerHub", UpdateListenerHub.class);


        hub.fireCheckForUpdates();


        // This will be the new version of the class


        named = (Named) createComponent(SYNTH_COMPONENT_CLASSNAME);

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Examples of org.apache.tapestry5.services.UpdateListenerHub

    @Test
    public void add_listener_and_invoke() throws Exception
    {
        UpdateListener listener = newMock(UpdateListener.class);


        UpdateListenerHub hub = new UpdateListenerHubImpl();


        listener.checkForUpdates();


        replay();


        hub.addUpdateListener(listener);


        hub.fireCheckForUpdates();


        verify();
    }

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Examples of org.apache.tapestry5.services.UpdateListenerHub

            // Keep re-writing the file until we see the DTM change.
        }


        // Detect the change and clear out the internal caches


        UpdateListenerHub hub = registry.getService("UpdateListenerHub", UpdateListenerHub.class);


        hub.fireCheckForUpdates();


        // This will be the new version of the class


        named = (Named) createComponent(SYNTH_COMPONENT_CLASSNAME);

View Full Code Here

Examples of org.apache.tapestry5.services.UpdateListenerHub

            // Keep re-writing the file until we see the DTM change.
        }


        // Detect the change and clear out the internal caches


        UpdateListenerHub hub = registry.getService("UpdateListenerHub", UpdateListenerHub.class);


        hub.fireCheckForUpdates();


        // This will be the new version of the class


        named = (Named) createComponent(SYNTH_COMPONENT_CLASSNAME);

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