public interface

BeanContextChild

java.beans.beancontext.BeanContextChild
Known Indirect Subclasses

Class Overview

JavaBeans wishing to be nested within, and obtain a reference to their execution environment, or context, as defined by the BeanContext sub-interface shall implement this interface.

Conformant BeanContexts shall as a side effect of adding a BeanContextChild object shall pass a reference to itself via the setBeanContext() method of this interface.

Note that a BeanContextChild may refuse a change in state by throwing PropertyVetoedException in response.

In order for persistence mechanisms to function properly on BeanContextChild instances across a broad variety of scenarios, implementing classes of this interface are required to define as transient, any or all fields, or instance variables, that may contain, or represent, references to the nesting BeanContext instance or other resources obtained from the BeanContext via any unspecified mechanisms.

See Also

Summary

Public Methods
abstract void addPropertyChangeListener(String name, PropertyChangeListener pcl)
Adds a PropertyChangeListener to this BeanContextChild in order to receive a PropertyChangeEvent whenever the specified property has changed.
abstract void addVetoableChangeListener(String name, VetoableChangeListener vcl)
Adds a VetoableChangeListener to this BeanContextChild to receive events whenever the specified property changes.
abstract BeanContext getBeanContext()
Gets the BeanContext associated with this BeanContextChild.
abstract void removePropertyChangeListener(String name, PropertyChangeListener pcl)
Removes a PropertyChangeListener from this BeanContextChild so that it no longer receives PropertyChangeEvents when the specified property is changed.
abstract void removeVetoableChangeListener(String name, VetoableChangeListener vcl)
Removes a VetoableChangeListener from this BeanContextChild so that it no longer receives events when the specified property changes.
abstract void setBeanContext(BeanContext bc)

Objects that implement this interface, shall fire a java.beans.PropertyChangeEvent, with parameters: propertyName "beanContext", oldValue (the previous nesting BeanContext instance, or null), newValue (the current nesting BeanContext instance, or null).

Public Methods

public abstract void addPropertyChangeListener (String name, PropertyChangeListener pcl)

Adds a PropertyChangeListener to this BeanContextChild in order to receive a PropertyChangeEvent whenever the specified property has changed.

Parameters
name the name of the property to listen on
pcl the PropertyChangeListener to add

public abstract void addVetoableChangeListener (String name, VetoableChangeListener vcl)

Adds a VetoableChangeListener to this BeanContextChild to receive events whenever the specified property changes.

Parameters
name the name of the property to listen on
vcl the VetoableChangeListener to add

public abstract BeanContext getBeanContext ()

Gets the BeanContext associated with this BeanContextChild.

Returns
  • the BeanContext associated with this BeanContextChild.

public abstract void removePropertyChangeListener (String name, PropertyChangeListener pcl)

Removes a PropertyChangeListener from this BeanContextChild so that it no longer receives PropertyChangeEvents when the specified property is changed.

Parameters
name the name of the property that was listened on
pcl the PropertyChangeListener to remove

public abstract void removeVetoableChangeListener (String name, VetoableChangeListener vcl)

Removes a VetoableChangeListener from this BeanContextChild so that it no longer receives events when the specified property changes.

Parameters
name the name of the property that was listened on.
vcl the VetoableChangeListener to remove.

public abstract void setBeanContext (BeanContext bc)

Objects that implement this interface, shall fire a java.beans.PropertyChangeEvent, with parameters: propertyName "beanContext", oldValue (the previous nesting BeanContext instance, or null), newValue (the current nesting BeanContext instance, or null).

A change in the value of the nesting BeanContext property of this BeanContextChild may be vetoed by throwing the appropriate exception.

Parameters
bc The BeanContext with which to associate this BeanContextChild.
Throws
if the addition of the specified BeanContext is refused.
PropertyVetoException