Class MVCObserver

Object
   |
   +--GrvObject
         |
         +--MVCObserver

Direct Known Subclasses:

MVCModel

class MVCObserver

extends GrvObject

This class acts as the abstract base class for each "observer class" (ala Observer design pattern).

 Subclasses of MVCObserver should define/override:
   (1) the update() method which accepts update events
       and takes one parameter which is the "observable"
       plus one optional adhoc parameter.

Constructor Detail

MVCObserver

MVCObserver()

Version: 2.0

Author: Bruce Wallace (PolyGlotInc.com)

konstructor

void konstructor()

subscribe

void subscribe( <MVCObservable> observable )

subscribe to (aka watch/monitor/observe) the given observable

Parameters:
observable - object to monitor

update

void update( <MVCObservable> observable, <Object> optAdhocObj )

override this method with your logic to respond to an update event from one of the Observables you are subscribed to.

Parameters:
observable - the generator of this update event
optAdhocObj - optional adhoc object passed by sender