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java.lang.Objectorg.apache.fop.events.CompositeEventListener
EventListener implementation forwards events to possibly multiple other EventListeners.
Constructor Summary | |
CompositeEventListener()
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Method Summary | |
void |
addEventListener(EventListener listener)
Adds an event listener to the broadcaster. |
boolean |
hasEventListeners()
Indicates whether any listeners have been registered with the broadcaster. |
void |
processEvent(Event event)
This method is called for each event that is generated. With the event's ID it is possible to react to certain events. Events can also simply be recorded and presented to a user. It is possible to throw an (unchecked) exception if the processing needs to be aborted because some special event occurred. This way the client can configure the behaviour of the observed application. |
void |
removeEventListener(EventListener listener)
Removes an event listener from the broadcaster. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
public CompositeEventListener()
Method Detail |
public void addEventListener(EventListener listener)
listener
- the listener to be addedpublic void removeEventListener(EventListener listener)
listener
- the listener to be removedpublic boolean hasEventListeners()
public void processEvent(Event event)
processEvent
in interface EventListener
event
- the event
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