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

        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", true, true);
        l1.assertNotCalled();
        l2.assertNotCalled();

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


        sup.firePropertyChange("myProp", true, true);
        l1.assertNotCalled();
        l2.assertNotCalled();
        l4.assertNotCalled();

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


        sup.firePropertyChange(null, false, true);
        l1.assertCalled();

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


        sup.firePropertyChange(null, false, true);
        l1.assertCalled();
        l2.assertNotCalled();

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


        sup.firePropertyChange(null, false, true);
        l1.assertCalled();
        l2.assertNotCalled();
        l4.assertNotCalled();

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     * listener has been registered.
     */
    public void testFirePropertyChange_Boolean_NullListener() {
        PropertyChangeSupport sup = new PropertyChangeSupport(new Object());


        sup.addPropertyChangeListener(null);
        sup.firePropertyChange("myProp", true, false);
    }


    /*
     * Test the method firePropertyChange(String, int, int) with normal

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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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        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();
        l2.assertCalled();

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                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();
        l2.assertCalled();
        l4.assertCalled();

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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.intValue(), newValue
                .intValue());

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