Examples of java.beans.VetoableChangeSupport.fireVetoableChange()

java.beans.VetoableChangeSupport.fireVetoableChange()
Report a vetoable property update to any registered listeners. If anyone vetos the change, then fire a new event reverting everyone to the old value and then rethrow the PropertyVetoException.
No event is fired if old and new are equal and non-null. @param propertyName The programmatic name of the propertythat is about to change.. @param oldValue The old value of the property. @param newValue The new value of the property. @exception PropertyVetoException if the recipient wishes the propertychange to be rolled back.

        VetoableChangeSupport support = new VetoableChangeSupport(source);


        VetoableChangeListener proxy = EventHandler.create(
                VetoableChangeListener.class, source, "setText");
        support.addVetoableChangeListener(proxy);
        support.fireVetoableChange("label", 1, 1);


        assertEquals("text.default", source.getText());
    }


    /*

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        VetoableChangeSupport support = new VetoableChangeSupport(source);


        VetoableChangeListener proxy = EventHandler.create(
                VetoableChangeListener.class, source, "setText");
        support.addVetoableChangeListener("label", proxy);
        support.fireVetoableChange("label", 1, 2);
        assertEquals("called", source.getText());
    }


    /*
     * Propertyname is null register listener for one property - "label"

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        VetoableChangeSupport support = new VetoableChangeSupport(source);


        VetoableChangeListener proxy = EventHandler.create(
                VetoableChangeListener.class, source, "setText");
        support.addVetoableChangeListener("label", proxy);
        support.fireVetoableChange(null, 1, 2);


        assertEquals("text.default", source.getText());
    }


    /*

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        VetoableChangeSupport support = new VetoableChangeSupport(source);


        VetoableChangeListener proxy = EventHandler.create(
                VetoableChangeListener.class, source, "setText");
        support.addVetoableChangeListener("label", proxy);
        support.fireVetoableChange("label_invalid", 1, 2);


        assertEquals("text.default", source.getText());
    }


    /*

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        VetoableChangeSupport support = new VetoableChangeSupport(source);


        VetoableChangeListener proxy = EventHandler.create(
                VetoableChangeListener.class, source, "setText");
        support.addVetoableChangeListener("label", proxy);
        support.fireVetoableChange("label", 1, 1);


        assertEquals("text.default", source.getText());
    }


    public void testFireVetoableChangeStringintint_listener_Invalid_property()

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        VetoableChangeSupport support = new VetoableChangeSupport(source);


        VetoableChangeListener proxy = EventHandler.create(
                VetoableChangeListener.class, source, "setText");
        support.addVetoableChangeListener("label_invalid", proxy);
        support.fireVetoableChange("label", 1, 2);


        assertEquals("text.default", source.getText());
    }


    /*

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        VetoableChangeSupport support = new VetoableChangeSupport(source);


        VetoableChangeListener proxy = EventHandler.create(
                VetoableChangeListener.class, source, "setText");
        support.addVetoableChangeListener(proxy);
        support.fireVetoableChange("label", "Label: old", "Label: new");
        assertEquals("called", source.getText());
    }


    /*
     * property name is null. register listener for all

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        VetoableChangeSupport support = new VetoableChangeSupport(source);


        VetoableChangeListener proxy = EventHandler.create(
                VetoableChangeListener.class, source, "setText");
        support.addVetoableChangeListener(proxy);
        support.fireVetoableChange(null, "Label: old", "Label: new");
        assertEquals("called", source.getText());
    }


    /*
     * property name is invalid. register listener for all

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        VetoableChangeSupport support = new VetoableChangeSupport(source);


        VetoableChangeListener proxy = EventHandler.create(
                VetoableChangeListener.class, source, "setText");
        support.addVetoableChangeListener(proxy);
        support.fireVetoableChange("label_invalid", "Label: old", "Label: new");
        assertEquals("called", source.getText());
    }


    /*
     * oldValue=NewValue. register listener for all

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        VetoableChangeSupport support = new VetoableChangeSupport(source);


        VetoableChangeListener proxy = EventHandler.create(
                VetoableChangeListener.class, source, "setText");
        support.addVetoableChangeListener(proxy);
        support.fireVetoableChange("label", "Label: old", "Label: old");
        assertEquals("text.default", source.getText());
    }


    /*
     * oldValue=NewValue=null. register listener for all

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