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Summary: Inherited Fields | Ctors | Methods | Inherited Methods | [Expand All]

Since: API Level 3

public class

PropertyChangeEvent

extends EventObject

java.lang.Object
↳	java.util.EventObject
	↳	java.beans.PropertyChangeEvent

Known Direct Subclasses

IndexedPropertyChangeEvent

Class Overview

An event that indicates that a constraint or a boundary of a property has changed.

Summary

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Inherited Fields

From class java.util.EventObject

Public Constructors
	PropertyChangeEvent(Object source, String propertyName, Object oldValue, Object newValue) The constructor used to create a new `PropertyChangeEvent`.

Public Methods
Object	getNewValue() Returns the new value that the property now has.
Object	getOldValue() Returns the old value that the property had.
Object	getPropagationId() Returns the propagationId object.
String	getPropertyName() Returns the name of the property that has changed.
void	setPropagationId(Object propagationId) Sets the propagationId object.

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Inherited Methods

From class java.util.EventObject

From class java.lang.Object

Object	clone() Creates and returns a copy of this `Object`.
boolean	equals(Object o) Compares this instance with the specified object and indicates if they are equal.
void	finalize() Invoked when the garbage collector has detected that this instance is no longer reachable.
final Class<?>	getClass() Returns the unique instance of `Class` that represents this object's class.
int	hashCode() Returns an integer hash code for this object.
final void	notify() Causes a thread which is waiting on this object's monitor (by means of calling one of the `wait()` methods) to be woken up.
final void	notifyAll() Causes all threads which are waiting on this object's monitor (by means of calling one of the `wait()` methods) to be woken up.
String	toString() Returns a string containing a concise, human-readable description of this object.
final void	wait() Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object.
final void	wait(long millis, int nanos) Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object or until the specified timeout expires.
final void	wait(long millis) Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object or until the specified timeout expires.

Public Constructors

public PropertyChangeEvent (Object source, String propertyName, Object oldValue, Object newValue)

Since: API Level 3

The constructor used to create a new PropertyChangeEvent.

Parameters

source	the changed bean.
propertyName	the changed property, or `null` to indicate an unspecified set of the properties has changed.
oldValue	the previous value of the property, or `null` if the `propertyName` is `null` or the previous value is unknown.
newValue	the new value of the property, or `null` if the `propertyName` is `null` or the new value is unknown.

Public Methods

public Object getNewValue ()

Since: API Level 3

Returns the new value that the property now has. If the new value is unknown this method returns null.

Returns

the old property value or null.

public Object getOldValue ()

Since: API Level 3

Returns the old value that the property had. If the old value is unknown this method returns null.

Returns

the old property value or null.

public Object getPropagationId ()

Since: API Level 3

Returns the propagationId object. This is reserved for future use. Beans 1.0 demands that a listener receiving this property and then sending its own PropertyChangeEvent sets the received propagationId on the new PropertyChangeEvent's propagationId field.

Returns

the propagationId object.

public String getPropertyName ()

Since: API Level 3

Returns the name of the property that has changed. If an unspecified set of properties has changed it returns null.

Returns

the name of the property that has changed, or null.

public void setPropagationId (Object propagationId)

Since: API Level 3

Sets the propagationId object.

Results

Interfaces

Classes

PropertyChangeEvent

Class Overview

Summary

Public Constructors

public PropertyChangeEvent (Object source, String propertyName, Object oldValue, Object newValue)

Parameters

Public Methods

public Object getNewValue ()

Returns

public Object getOldValue ()

Returns

public Object getPropagationId ()

Returns

public String getPropertyName ()

Returns

public void setPropagationId (Object propagationId)

See Also