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Java(TM) 2 Platform, Standard Edition, v1.2.2 API Specification: Class BeanContextMembershipEvent - JDK 5 Documentation v1.2.2, Java 2 SDK 英文文档

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java.beans.beancontext
Class BeanContextMembershipEvent

java.lang.Object
  |
  +--java.util.EventObject
        |
        +--java.beans.beancontext.BeanContextEvent
              |
              +--java.beans.beancontext.BeanContextMembershipEvent

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public class BeanContextMembershipEvent

extends BeanContextEvent

Compliant BeanContexts fire events on this interface when state maintained by the BeanContext, for some or all of its "children", changes, to all BeanContextListeners that register themselves with a particular BeanContext.

Since:

1.2

See Also:

BeanContext, BeanContextEvent, java.beans.beancontext.BeanContextListener, Serialized Form

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Field Summary
protected  Collection	children

 

Fields inherited from class java.beans.beancontext.BeanContextEvent

propagatedFrom

 

Fields inherited from class java.util.EventObject

source

 

Constructor Summary

BeanContextMembershipEvent(BeanContext bc, Collection changes)           Contruct a BeanContextMembershipEvent

BeanContextMembershipEvent(BeanContext bc, Object[] changes)           Contruct a BeanContextMembershipEvent

 

Method Summary
boolean	contains(Object child)
Iterator	iterator()
int	size()           how many children are effected by the notification
Object[]	toArray()

 

Methods inherited from class java.beans.beancontext.BeanContextEvent

getBeanContext, getPropagatedFrom, isPropagated, setPropagatedFrom

 

Methods inherited from class java.util.EventObject

getSource, toString

 

Methods inherited from class java.lang.Object

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

 

Field Detail

children

protected Collection children

Constructor Detail

BeanContextMembershipEvent

public BeanContextMembershipEvent(BeanContext bc,
                                  Collection changes)

Contruct a BeanContextMembershipEvent

Parameters:

bc - The BeanContext source

changes - The Children effected

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BeanContextMembershipEvent

public BeanContextMembershipEvent(BeanContext bc,
                                  Object[] changes)

Contruct a BeanContextMembershipEvent

Parameters:

bc - The BeanContext source

changes - The Children effected

Method Detail

size

public int size()

how many children are effected by the notification

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contains

public boolean contains(Object child)

Returns:

is the child specified effected by the event?

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toArray

public Object[] toArray()

Returns:

the array of children effected

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iterator

public Iterator iterator()

Returns:

the array of children effected

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