Examples of com.volantis.cache.impl.notification.RemovalListenerList

Package com.volantis.cache.impl.notification

Examples of com.volantis.cache.impl.notification.RemovalListenerList

com.volantis.cache.impl.notification.RemovalListenerList
A list of {@link RemovalListener}.
This class is optimized to make event dispatching as fast as possible at the expense of adding and removing listeners.

Adding and removing listeners take a copy of the array of listeners and add or remove the appropriate listener. They do this while synchronized on the instance to ensure that concurrent calls work properly. Dispatching an event takes a reference to the existing array while synchronized on this and then iterates over the array unsynchronized. This is safe to do because the existing array is never modified.

        });


        // =====================================================================
        //   Test Expectations
        // =====================================================================
        RemovalListenerList list = new RemovalListenerList();
        list.addListener(listenerMock1);
        list.addListener(listenerMock2);


        list.dispatchRemovedEntryEvent(entryMock);
    }

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    public void testAddTwice() throws Exception {


        // =====================================================================
        //   Test Expectations
        // =====================================================================
        RemovalListenerList list = new RemovalListenerList();
        list.addListener(listenerMock1);
        try {
            list.addListener(listenerMock1);
            fail("Did not detect attempt to add same listener twice");
        } catch (IllegalStateException expected) {
            assertEquals("Listener " + listenerMock1 +
                    " has already been added", expected.getMessage());
        }

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        });


        // =====================================================================
        //   Test Expectations
        // =====================================================================
        RemovalListenerList list = new RemovalListenerList();
        list.addListener(listenerMock1);
        list.addListener(listenerMock2);
        list.addListener(listenerMock3);


        // Make sure that they have been added properly.
        list.dispatchRemovedEntryEvent(entryMock);


        // Remove the middle one and make sure that the content are correct.
        list.removeListener(listenerMock2);
        list.dispatchRemovedEntryEvent(entryMock);


        // Remove the last one and make sure that the content are correct.
        list.removeListener(listenerMock3);
        list.dispatchRemovedEntryEvent(entryMock);


        // Remove the remaining one and make sure that the content are correct.
        list.removeListener(listenerMock1);
        list.dispatchRemovedEntryEvent(entryMock);
    }

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    public void testRemoveUnknown() throws Exception {


        // =====================================================================
        //   Test Expectations
        // =====================================================================
        RemovalListenerList list = new RemovalListenerList();
        try {
            list.removeListener(listenerMock1);
            fail("Did not detect attempt to remove unknow listener");
        } catch (IllegalStateException expected) {
            assertEquals("Listener " + listenerMock1 +
                    " is not in the list", expected.getMessage());
        }

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        });


        // =====================================================================
        //   Test Expectations
        // =====================================================================
        final RemovalListenerList list = new RemovalListenerList();
        RemovalListener listener = new RemovalListener() {
            public void entryRemoved(CacheEntry entry) {
                list.removeListener(listenerMock1);
                list.removeListener(this);
                list.removeListener(listenerMock2);
            }
        };
        list.addListener(listenerMock1);
        list.addListener(listener);
        list.addListener(listenerMock2);


        list.dispatchRemovedEntryEvent(entryMock);
    }

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                    "Max count must be > 0 but is " + maxCount);
        }
        this.maxCount = maxCount;
        this.clock = clock;
        entries = new CacheEntryList();
        removalListeners = new RemovalListenerList();


        purgeExcessEntriesAction = new PurgeExcessEntriesAction(this);
        gatherer = new StatisticsGatherer(clock);
    }

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Related Classes of com.volantis.cache.impl.notification.RemovalListenerList

com.volantis.cache.impl.group.GroupImpl

com.volantis.cache.notification.RemovalListener

com.volantis.cache.notification.RemovalListenerListTestCase

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