BeanContextMembershipEvent (Java Platform SE 6)
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java.beans.beancontext
Class BeanContextMembershipEvent
java.lang.Object
java.util.EventObject
java.beans.beancontext.BeanContextEvent
java.beans.beancontext.BeanContextMembershipEvent
All Implemented Interfaces: Serializable
public class BeanContextMembershipEventextends BeanContextEvent
A BeanContextMembershipEvent encapsulates
the list of children added to, or removed from,
the membership of a particular BeanContext.
An instance of this event is fired whenever a successful
add(), remove(), retainAll(), removeAll(), or clear() is
invoked on a given BeanContext instance.
Objects interested in receiving events of this type must
implement the BeanContextMembershipListener
interface, and must register their intent via the
BeanContext's
addBeanContextMembershipListener(BeanContextMembershipListener bcml)
method.
Since:
1.2
See Also:BeanContext,
BeanContextEvent,
BeanContextMembershipListener,
Serialized Form
Field Summary
protected Collection
children
The list of children affected by this
event notification.
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)
Is the child specified affected by the event?
Iterator
iterator()
Gets the array of children affected by this event.
int
size()
Gets the number of children affected by the notification.
Object[]
toArray()
Gets the array of children affected by this event.
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
The list of children affected by this
event notification.
Constructor Detail
BeanContextMembershipEvent
public BeanContextMembershipEvent(BeanContext bc,
Collection changes)
Contruct a BeanContextMembershipEvent
Parameters:bc - The BeanContext sourcechanges - The Children affected
Throws:
NullPointerException - if changes is null
BeanContextMembershipEvent
public BeanContextMembershipEvent(BeanContext bc,
Object[] changes)
Contruct a BeanContextMembershipEvent
Parameters:bc - The BeanContext sourcechanges - The Children effected
Throws:
NullPointerException - if changes associated with this
event are null.
Method Detail
size
public int size()
Gets the number of children affected by the notification.
Returns:the number of children affected by the notification
contains
public boolean contains(Object child)
Is the child specified affected by the event?
Returns:true if affected, false
if not
toArray
public Object[] toArray()
Gets the array of children affected by this event.
Returns:the array of children affected
iterator
public Iterator iterator()
Gets the array of children affected by this event.
Returns:the array of children effected
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Submit a bug or featureFor further API reference and developer documentation, see Java SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples. Copyright 2009 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.
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