org.apache.commons.workflow.util
Class ScopeSupport

java.lang.Object
  org.apache.commons.workflow.util.ScopeSupport

public class ScopeSupport
extends Object

ScopeSupport is a convenience class for managing the firing of ScopeEvents to registered ScopeListeners.

Version:

$Revision: 155475 $ $Date: 2005-02-26 13:31:11 +0000 (Sat, 26 Feb 2005) $

Author:

Craig R. McClanahan

Field Summary

protected ScopeListener[]	listeners The set of registered ScopeListener event listeners.
protected Scope	scope The Scope for whom we will fire events.

Constructor Summary

ScopeSupport(Scope scope)
Construct a new ScopeSupport object associated with the specified Scope.

Method Summary

void	addScopeListener(ScopeListener listener) Add a listener that is notified each time beans are added, replaced, or removed in this scope.
void	fireBeanAdded(String key, Object value) Fire a beanAdded() event to all registered listeners.
void	fireBeanRemoved(String key, Object value) Fire a beanRemoved() event to all registered listeners.
void	fireBeanReplaced(String key, Object value) Fire a beanReplaced() event to all registered listeners.
void	fireScopeCleared() Fire a scopeCleared() event to all registered listeners.
void	removeScopeListener(ScopeListener listener) Remove a listener that is notified each time beans are added, replaced, or removed in this scope.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

listeners

protected ScopeListener[] listeners

The set of registered ScopeListener event listeners.

scope

protected Scope scope

The Scope for whom we will fire events.

Constructor Detail

ScopeSupport

public ScopeSupport(Scope scope)

Construct a new ScopeSupport object associated with the specified Scope.

Parameters:

scope - Scope for whom we will fire events

Method Detail

addScopeListener

public void addScopeListener(ScopeListener listener)

Add a listener that is notified each time beans are added, replaced, or removed in this scope.

Parameters:

listener - The ScopeListener to be added

removeScopeListener

public void removeScopeListener(ScopeListener listener)

Remove a listener that is notified each time beans are added, replaced, or removed in this scope.

Parameters:

listener - The ScopeListener to be removed

fireBeanAdded

public void fireBeanAdded(String key,
                          Object value)

Fire a beanAdded() event to all registered listeners.

Parameters:

key - Key of the bean that was added

value - Value of the bean that was added

fireBeanRemoved

public void fireBeanRemoved(String key,
                            Object value)

Fire a beanRemoved() event to all registered listeners.

Parameters:

key - Key of the bean that was removed

value - Value of the bean that was removed

fireBeanReplaced

public void fireBeanReplaced(String key,
                             Object value)

Fire a beanReplaced() event to all registered listeners.

Parameters:

key - Key of the bean that was replaced

value - Old value of the bean that was replaced

fireScopeCleared

public void fireScopeCleared()

Fire a scopeCleared() event to all registered listeners.