About walkDirection

I need to set the walkDirection of a model, but only until the model reaches a given location on the map. Reached this position, the model has to stop.

How do you suggest to do?

Just check if the model is at that location? This is how MonkeyZone does it: http://code.google.com/p/monkeyzone/source/browse/trunk/src/com/jme3/monkeyzone/controls/AutonomousCharacterControl.java