org.apache.beehive.controls.runtime.webcontext
Class ControlBeanContextChildSupport

Object
  ControlBeanContextChildSupport

All Implemented Interfaces:

BeanContextChild, BeanContextServiceRevokedListener, BeanContextServicesListener, Serializable, EventListener

Direct Known Subclasses:

ControlBeanContextSupport

public class ControlBeanContextChildSupport
extends Object
implements BeanContextChild, BeanContextServiceRevokedListener, BeanContextServicesListener, Serializable, EventListener

Implementation of the BeanContextChild api for Beehive controls.

See Also:

Serialized Form

ControlBeanContextChildSupport

public ControlBeanContextChildSupport()

Constructor.

ControlBeanContextChildSupport

public ControlBeanContextChildSupport(BeanContextChild bcc)

Constructor -- java bean implements BeanContextChild and delegates the interface to this implementation.

Parameters:

bcc -

setBeanContext

public void setBeanContext(BeanContext bc)
                    throws PropertyVetoException

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.

Specified by:

setBeanContext in interface BeanContextChild

Parameters:

bc - The BeanContext with which to associate this BeanContextChild.

Throws:

PropertyVetoException

getBeanContext

public BeanContext getBeanContext()

Gets the BeanContext associated with this BeanContextChild.

Specified by:

getBeanContext in interface BeanContextChild

Returns:

the BeanContext associated with this BeanContextChild.

addPropertyChangeListener

public void addPropertyChangeListener(String name,
                                      PropertyChangeListener pcl)

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

Specified by:

addPropertyChangeListener in interface BeanContextChild

Parameters:

name - the name of the property to listen on

pcl - the PropertyChangeListener to add

removePropertyChangeListener

public 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.

Specified by:

removePropertyChangeListener in interface BeanContextChild

Parameters:

name - the name of the property that was listened on

pcl - the PropertyChangeListener to remove

addVetoableChangeListener

public void addVetoableChangeListener(String name,
                                      VetoableChangeListener vcl)

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

Specified by:

addVetoableChangeListener in interface BeanContextChild

Parameters:

name - the name of the property to listen on

vcl - the VetoableChangeListener to add

removeVetoableChangeListener

public void removeVetoableChangeListener(String name,
                                         VetoableChangeListener vcl)

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

Specified by:

removeVetoableChangeListener in interface BeanContextChild

Parameters:

name - the name of the property that was listened on.

vcl - the VetoableChangeListener to remove.

serviceAvailable

public void serviceAvailable(BeanContextServiceAvailableEvent bcsae)

The service named has been registered. getService requests for this service may now be made.

Specified by:

serviceAvailable in interface BeanContextServicesListener

Parameters:

bcsae - the BeanContextServiceAvailableEvent

serviceRevoked

public void serviceRevoked(BeanContextServiceRevokedEvent bcsre)

The service named has been revoked. getService requests for this service will no longer be satisifed.

Specified by:

serviceRevoked in interface BeanContextServiceRevokedListener

Parameters:

bcsre - the BeanContextServiceRevokedEvent received by this listener.

getPeer

protected BeanContextChild getPeer()

Get the delegate for this child.

firePropertyChange

protected void firePropertyChange(String name,
                                  Object oldValue,
                                  Object newValue)

Fire a property change event.

Parameters:

name -

oldValue -

newValue -

releaseBeanContextResources

protected void releaseBeanContextResources()

Release any resources that may have been acumlated from the current bean context, invoked by setBeanContext BEFORE the context is changed.