org.extex.interpreter.observer.stop
Class StopObserverList

java.lang.Object
  org.extex.interpreter.observer.stop.StopObserverList

All Implemented Interfaces:

StopObserver

public final class StopObserverList
extends java.lang.Object
implements StopObserver

This class provides a type-safe list of observers for the start event.

Version:

$Revision: 4728 $

Author:

Gerd Neugebauer

Constructor Summary

StopObserverList()

Method Summary

void	add(StopObserver observer) Add an observer to the list.
static StopObserver	register(StopObserver list, StopObserver observer) Take a list and add an observer.
void	update(Interpreter interpreter) This method is meant to be invoked just before the engine is stopping.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

StopObserverList

public StopObserverList()

Method Detail

register

public static StopObserver register(StopObserver list,
                                    StopObserver observer)

Take a list and add an observer. If the list is null then a new one is created.

Parameters:

list - the input list or null

observer - the observer to add

Returns:

the input list or a new one with the observer added

add

public void add(StopObserver observer)

Add an observer to the list.

Parameters:

observer - the observer to add to the list

update

public void update(Interpreter interpreter)

This method is meant to be invoked just before the engine is stopping.

Specified by:

update in interface StopObserver

Parameters:

interpreter - the interpreter to be stopped

See Also:

StopObserver.update( org.extex.interpreter.Interpreter)