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Java Platform 1.2
Beta 4

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Class java.beans.beancontext.BeanContextMembershipEvent

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

Direct Known Subclasses:

BeanContextAddedEvent, BeanContextRemovedEvent

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

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

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

contains

public boolean contains(Object child)

Returns:

is the child specified effected by the event?

toArray

public Object[] toArray()

Returns:

the array of children effected

iterator

public Iterator iterator()

Returns:

the array of children effected