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Java 2 Platform SE v1.3.1: Class BeanContextEvent - JDK 5 Documentation v1.3.1, Java 2 SDK 英文文档

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java.beans.beancontext
Class BeanContextEvent

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

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

BeanContextMembershipEvent, BeanContextServiceAvailableEvent, BeanContextServiceRevokedEvent

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public abstract class BeanContextEvent

extends EventObject

BeanContextEvent is the abstract root event class for all events emitted from, and pertaining to the semantics of, a BeanContext. This class introduces a mechanism to allow the propagation of BeanContextEvent subclasses through a heirarchy of BeanContexts. The setPropagatedFrom() and getPropagatedFrom() methods allow a BeanContext to identify itself as the source of a propagated event.

Since:

1.2

See Also:

BeanContext, Serialized Form

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Field Summary
protected  BeanContext	propagatedFrom           The BeanContext from which this event was propagated

 

Fields inherited from class java.util.EventObject

source

 

Constructor Summary
protected	BeanContextEvent(BeanContext bc)           Contruct a BeanContextEvent

 

Method Summary
BeanContext	getBeanContext()           Gets the BeanContext associated with this event.
BeanContext	getPropagatedFrom()           Gets the BeanContext from which this event was propagated.
boolean	isPropagated()           Reports whether or not this event is propagated from some other BeanContext.
void	setPropagatedFrom(BeanContext bc)           Sets the BeanContext from which this event was propagated.

 

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

propagatedFrom

protected BeanContext propagatedFrom

The BeanContext from which this event was propagated

Constructor Detail

BeanContextEvent

protected BeanContextEvent(BeanContext bc)

Contruct a BeanContextEvent

Parameters:

bc - The BeanContext source

Method Detail

getBeanContext

public BeanContext getBeanContext()

Gets the BeanContext associated with this event.

Returns:

the BeanContext associated with this event.

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setPropagatedFrom

public void setPropagatedFrom(BeanContext bc)

Sets the BeanContext from which this event was propagated.

Parameters:

bc - the BeanContext from which this event was propagated

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getPropagatedFrom

public BeanContext getPropagatedFrom()

Gets the BeanContext from which this event was propagated.

Parameters:

bc - The BeanContext that last propagated this BeanContextEvent

Returns:

the BeanContext from which this event was propagated

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isPropagated

public boolean isPropagated()

Reports whether or not this event is propagated from some other BeanContext.

Returns:

true if propagated, false if not

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