[Chapter 23] 23.19 java.beans.PropertyVetoException (JDK 1.1)

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| Chapter 23 The java.beans Package |

## 23.19 java.beans.PropertyVetoException (JDK 1.1)

###

The `PropertyVetoException` signals that a `VetoableChangeListener` that received a `PropertyChangeEvent` for a "constrained" property of a bean has vetoed that proposed change.

When this exception is received, the property in question should revert back to its original value, and any `VetoableChangeListener` objects that have already been notified of the property change must be re-notified to indicate that the property has reverted to its old value. The `VetoableChangeSupport` class handles this re-notification automatically and re-throws the `PropertyVetoException` to notify its caller that the change was rejected.

    public class PropertyVetoException extends Exception {
        // Public Constructor
                public PropertyVetoException(String mess, PropertyChangeEvent evt);
        // Public Instance Methods
                public PropertyChangeEvent getPropertyChangeEvent();
    }

### Hierarchy:

Object->Throwable(Serializable)->Exception->PropertyVetoException

### Thrown By:

VetoableChangeListener.vetoableChange(), VetoableChangeSupport.fireVetoableChange()

java.beans.PropertyEditorSupport (JDK 1.1) |  | java.beans.SimpleBeanInfo (JDK 1.1)