Examples of com.hp.hpl.jena.graph.GraphEventManager

com.hp.hpl.jena.graph.GraphEventManager
The component of a graph responsible for managing events and listeners. The interface extends GraphListener because most of the notificiations are the same; the special case to note is that an event manager expects to be handed iterator events as lists, not as iterators.

    { return g.isEmpty(); }


    public void testEventRegister()
    {
        Graph g = getGraph();
        GraphEventManager gem = g.getEventManager();
        assertSame( gem, gem.register( new RecordingListener() ) );
    }

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    public void testTwoListeners()
    {
        RecordingListener L1 = new RecordingListener();
        RecordingListener L2 = new RecordingListener();
        Graph g = getGraph();
        GraphEventManager gem = g.getEventManager();
        gem.register( L1 ).register( L2 );
        g.add( SPO );
        L2.assertHas( new Object[] {"add", g, SPO} );
        L1.assertHas( new Object[] {"add", g, SPO} );
    }

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    }


    public void testUnregisterWorks()
    {
        Graph g = getGraph();
        GraphEventManager gem = g.getEventManager();
        gem.register( L ).unregister( L );
        g.add( SPO );
        L.assertHas( new Object[] {} );
    }

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    { return g.isEmpty(); }


    public void testEventRegister()
    {
        Graph g = getGraph();
        GraphEventManager gem = g.getEventManager();
        assertSame( gem, gem.register( new RecordingListener() ) );
    }

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    public void testTwoListeners()
    {
        RecordingListener L1 = new RecordingListener();
        RecordingListener L2 = new RecordingListener();
        Graph g = getGraph();
        GraphEventManager gem = g.getEventManager();
        gem.register( L1 ).register( L2 );
        g.add( SPO );
        L2.assertHas( new Object[] {"add", g, SPO} );
        L1.assertHas( new Object[] {"add", g, SPO} );
    }

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    }


    public void testUnregisterWorks()
    {
        Graph g = getGraph();
        GraphEventManager gem = g.getEventManager();
        gem.register( L ).unregister( L );
        g.add( SPO );
        L.assertHas( new Object[] {} );
    }

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Related Classes of com.hp.hpl.jena.graph.GraphEventManager

com.hp.hpl.jena.graph.test.AbstractTestGraph

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