Examples of java.beans.PropertyChangeSupport.addPropertyChangeListener()

java.beans.PropertyChangeSupport.addPropertyChangeListener()
Add a PropertyChangeListener to the listener list. The listener is registered for all properties. The same listener object may be added more than once, and will be called as many times as it is added. If listener is null, no exception is thrown and no action is taken. @param listener The PropertyChangeListener to be added

                l2);
        PropertyChangeListener l4 = new MockPropertyChangeListener();


        sup.addPropertyChangeListener(l1);
        sup.addPropertyChangeListener(l3);
        sup.addPropertyChangeListener("myProp3", l4);


        assertEquals(0, sup.getPropertyChangeListeners("myProp").length);
    }


    /*

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    public void testGetPropertyChangeListener_String_Null() {
        Object src = new Object();
        PropertyChangeSupport sup = new PropertyChangeSupport(src);


        sup.getPropertyChangeListeners(null);
        sup.addPropertyChangeListener("myProp",
                new MockPropertyChangeListener());
        sup.getPropertyChangeListeners(null);
    }


    /*

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        PropertyChangeListener l2 = new MockPropertyChangeListener();
        PropertyChangeListener l3 = new PropertyChangeListenerProxy("myProp",
                l2);


        assertFalse(sup.hasListeners("myProp"));
        sup.addPropertyChangeListener(l1);
        assertTrue(sup.hasListeners("myProp"));
        sup.removePropertyChangeListener(l1);
        assertFalse(sup.hasListeners("myProp"));
        sup.addPropertyChangeListener(l3);
        assertTrue(sup.hasListeners("myProp"));

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        assertFalse(sup.hasListeners("myProp"));
        sup.addPropertyChangeListener(l1);
        assertTrue(sup.hasListeners("myProp"));
        sup.removePropertyChangeListener(l1);
        assertFalse(sup.hasListeners("myProp"));
        sup.addPropertyChangeListener(l3);
        assertTrue(sup.hasListeners("myProp"));
    }


    /*
     * Test the method hasListeners(String) when there is one listener for the

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        PropertyChangeListener l2 = new MockPropertyChangeListener();
        PropertyChangeListener l3 = new PropertyChangeListenerProxy("myProp",
                l2);


        assertFalse(sup.hasListeners("myProp"));
        sup.addPropertyChangeListener("myProP", l1);
        assertFalse(sup.hasListeners("myProp"));
        sup.addPropertyChangeListener("myProp", l2);
        assertTrue(sup.hasListeners("myProp"));
        sup.removePropertyChangeListener("myProp", l2);
        assertFalse(sup.hasListeners("myProp"));

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                l2);


        assertFalse(sup.hasListeners("myProp"));
        sup.addPropertyChangeListener("myProP", l1);
        assertFalse(sup.hasListeners("myProp"));
        sup.addPropertyChangeListener("myProp", l2);
        assertTrue(sup.hasListeners("myProp"));
        sup.removePropertyChangeListener("myProp", l2);
        assertFalse(sup.hasListeners("myProp"));
        // The following assertion fails on RI. See HARMONY-2526
        sup.addPropertyChangeListener("myProp", l3);

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        sup.addPropertyChangeListener("myProp", l2);
        assertTrue(sup.hasListeners("myProp"));
        sup.removePropertyChangeListener("myProp", l2);
        assertFalse(sup.hasListeners("myProp"));
        // The following assertion fails on RI. See HARMONY-2526
        sup.addPropertyChangeListener("myProp", l3);
        assertTrue(sup.hasListeners("myProp"));
    }


    /*
     * Test the method hasListeners(String) when there is no listeners.

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        PropertyChangeSupport sup = new PropertyChangeSupport(src);
        PropertyChangeListener l1 = new MockPropertyChangeListener();


        assertFalse(sup.hasListeners(null));


        sup.addPropertyChangeListener("myProP", l1);
        sup.hasListeners(null);
    }


    public void testFireIndexedPropertyChange() {
        final Object src = new Object();

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    }


    public void testFireIndexedPropertyChange() {
        final Object src = new Object();
        PropertyChangeSupport pcs = new PropertyChangeSupport(src);
        pcs.addPropertyChangeListener(new PropertyChangeListener() {
            public void propertyChange(PropertyChangeEvent evt) {
                assertEquals(src, evt.getSource());
                assertEquals(0, ((IndexedPropertyChangeEvent)evt).getIndex());
                assertEquals("one", evt.getOldValue());
                assertEquals("two", evt.getNewValue());

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                "myProp", oldValue, newValue);
        PropertyChangeListener l3 = new PropertyChangeListenerProxy("myProp",
                l2);
        MockPropertyChangeListener l4 = new MockPropertyChangeListener(src,
                "myProp", oldValue, newValue);
        sup.addPropertyChangeListener(l1);
        sup.addPropertyChangeListener(l3);
        sup.addPropertyChangeListener("myProp", l4);


        sup.firePropertyChange("myProp", oldValue, newValue);
        l1.assertCalled();

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