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Java™ Platform Standard Ed. 6 |
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java.lang.Object java.util.EventObject java.beans.beancontext.BeanContextEvent java.beans.beancontext.BeanContextMembershipEvent
public class BeanContextMembershipEvent
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.
BeanContext
,
BeanContextEvent
,
BeanContextMembershipListener
,
Serialized FormField Summary | |
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protected Collection |
children
The list of children affected by this event notification. |
Fields inherited from class java.beans.beancontext.BeanContextEvent |
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propagatedFrom |
Fields inherited from class java.util.EventObject |
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source |
Constructor Summary | |
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BeanContextMembershipEvent(BeanContext bc,
Collection changes)
Contruct a BeanContextMembershipEvent |
|
BeanContextMembershipEvent(BeanContext bc,
Object[] changes)
Contruct a BeanContextMembershipEvent |
Method Summary | |
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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 |
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getBeanContext, getPropagatedFrom, isPropagated, setPropagatedFrom |
Methods inherited from class java.util.EventObject |
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getSource, toString |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
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protected Collection children
Constructor Detail |
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public BeanContextMembershipEvent(BeanContext bc, Collection changes)
bc
- The BeanContext sourcechanges
- The Children affected
NullPointerException
- if changes
is null
public BeanContextMembershipEvent(BeanContext bc, Object[] changes)
bc
- The BeanContext sourcechanges
- The Children effected
NullPointerException
- if changes associated with this
event are null.Method Detail |
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public int size()
public boolean contains(Object child)
true
if affected, false
if notpublic Object[] toArray()
public Iterator iterator()
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Java™ Platform Standard Ed. 6 |
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