Examples of java.beans.PropertyChangeListenerProxy

java.beans.PropertyChangeListenerProxy
A class which extends the EventListenerProxy specifically for adding a named PropertyChangeListener. Instances of this class can be added as PropertyChangeListener to an object.
If the object has a getPropertyChangeListeners() method then the array returned could be a mixture of PropertyChangeListener and PropertyChangeListenerProxy objects. @see java.util.EventListenerProxy @since 1.4

    public void testHasListener_AllRegistered() {
        Object src = new Object();
        PropertyChangeSupport sup = new PropertyChangeSupport(src);
        PropertyChangeListener l1 = new MockPropertyChangeListener();
        PropertyChangeListener l2 = new MockPropertyChangeListener();
        PropertyChangeListener l3 = new PropertyChangeListenerProxy("myProp",
                l2);


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

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    public void testHasListener_PropertyRegistered() {
        Object src = new Object();
        PropertyChangeSupport sup = new PropertyChangeSupport(src);
        PropertyChangeListener l1 = new MockPropertyChangeListener();
        PropertyChangeListener l2 = new MockPropertyChangeListener();
        PropertyChangeListener l3 = new PropertyChangeListenerProxy("myProp",
                l2);


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

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

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

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

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

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

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

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        MockPropertyChangeListener l1 = new MockPropertyChangeListener(src2,
                "myProp", oldValue, newValue);
        MockPropertyChangeListener l2 = new MockPropertyChangeListener(src2,
                "myProp", oldValue, newValue);
        PropertyChangeListener l3 = new PropertyChangeListenerProxy("myProp",
                l2);
        MockPropertyChangeListener l4 = new MockPropertyChangeListener(src2,
                "myProp", oldValue, newValue);
        sup.addPropertyChangeListener(l1);
        sup.addPropertyChangeListener(l3);

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        MockPropertyChangeListener l1 = new MockPropertyChangeListener(src2,
                "myProp", oldValue, newValue);
        MockPropertyChangeListener l2 = new MockPropertyChangeListener(src2,
                "myProp", oldValue, newValue);
        PropertyChangeListener l3 = new PropertyChangeListenerProxy("myProp",
                l2);
        MockPropertyChangeListener l4 = new MockPropertyChangeListener(src2,
                "myProp", oldValue, newValue);
        sup.addPropertyChangeListener(l1);
        sup.addPropertyChangeListener(l3);

View Full Code Here

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