Class BeanContextMembershipEvent
- java.lang.Object
-
- java.util.EventObject
-
- java.beans.beancontext.BeanContextEvent
-
- java.beans.beancontext.BeanContextMembershipEvent
- All Implemented Interfaces:
- Serializable
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 the BeanContext's addBeanContextMembershipListener(BeanContextMembershipListener bcml)
method.
- Since:
- 1.2
- See Also:
-
BeanContext,BeanContextEvent,BeanContextMembershipListener, Serialized Form
Fields
| Modifier and Type | Field and Description |
|---|---|
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 Constructors
| Constructor and Description |
|---|
BeanContextMembershipEvent(BeanContext bc,
Collection changes) Contruct a BeanContextMembershipEvent |
BeanContextMembershipEvent(BeanContext bc,
Object[] changes) Contruct a BeanContextMembershipEvent |
Methods
| Modifier and Type | Method and Description |
|---|---|
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 Fields
children
protected Collection children
The list of children affected by this event notification.
Constructors
BeanContextMembershipEvent
public BeanContextMembershipEvent(BeanContext bc,
Collection changes) Contruct a BeanContextMembershipEvent
- Parameters:
-
bc- The BeanContext source -
changes- The Children affected - Throws:
-
NullPointerException- ifchangesisnull
BeanContextMembershipEvent
public BeanContextMembershipEvent(BeanContext bc,
Object[] changes) Contruct a BeanContextMembershipEvent
- Parameters:
-
bc- The BeanContext source -
changes- The Children effected - Throws:
-
NullPointerException- if changes associated with this event are null.
Methods
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?
- Parameters:
-
child- the object to check for being affected - Returns:
-
trueif affected,falseif 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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Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
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https://docs.oracle.com/javase/8/docs/api/java/beans/beancontext/BeanContextMembershipEvent.html