BeanContextMembershipEvent (Java Platform SE 6) (original) (raw)
java.beans.beancontext
Class BeanContextMembershipEvent
java.lang.Object
java.util.EventObject
java.beans.beancontext.BeanContextEvent
java.beans.beancontext.BeanContextMembershipEvent
All Implemented Interfaces:
public class BeanContextMembershipEvent
extends 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 theBeanContext'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](../../../java/beans/beancontext/BeanContextMembershipEvent.html#BeanContextMembershipEvent%28java.beans.beancontext.BeanContext, java.util.Collection%29)(BeanContext bc,Collection changes) Contruct a BeanContextMembershipEvent |
| [BeanContextMembershipEvent](../../../java/beans/beancontext/BeanContextMembershipEvent.html#BeanContextMembershipEvent%28java.beans.beancontext.BeanContext, java.lang.Object[]%29)(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](../../../java/lang/Object.html#wait%28long, int%29) |
| 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 source
changes - The Children affected
Throws:
[NullPointerException](../../../java/lang/NullPointerException.html "class in java.lang") - if changes is null
BeanContextMembershipEvent
public BeanContextMembershipEvent(BeanContext bc, Object[] changes)
Contruct a BeanContextMembershipEvent
Parameters:
bc - The BeanContext source
changes - The Children effected
Throws:
[NullPointerException](../../../java/lang/NullPointerException.html "class in java.lang") - 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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For 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.
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