Package org.web3d.browser

Interface NodeObserver

public interface NodeObserver

Interface for classes that wish to know about when nodes are added or removed during the course of an event cycle, and work as a dynamic interface with the event model.

A single observer instance may be registered for more than one node type ID.

Version:

$Revision: 1.1 $

Author:

Justin Couch

Method Summary

Modifier and Type	Method	Description
void	clear()	Force clearing all currently managed nodes from this observer now.
void	nodesAdded(int nodeType, VRMLNodeType[] nodes, int numNodes)	Notification that nodes of the require type have been added.
void	nodesRemoved(int nodeType, VRMLNodeType[] nodes, int numNodes)	Notification that nodes of the require type have been removed.
void	shutdown()	Shutdown the node manager now.

Method Details

nodesAdded

void nodesAdded(int nodeType,
 VRMLNodeType[] nodes,
 int numNodes)

Notification that nodes of the require type have been added. The node representations will either be the real node, or if the parent of a proto, the proto instance they came from.

Parameters:

nodeType - The node type id that this notification refers to

nodes - The node instances that have just been added.

numNodes - size of nodes array

nodesRemoved

void nodesRemoved(int nodeType,
 VRMLNodeType[] nodes,
 int numNodes)

Notification that nodes of the require type have been removed. The node representations will either be the real node, or if the parent of a proto, the proto instance they came from.

Parameters:

nodeType - The node type id that this notification refers to

nodes - The node instances that have just been removed.

numNodes - The number of node instances that have just been removed

clear

void clear()

Force clearing all currently managed nodes from this observer now. This is used to indicate that a new world is about to be loaded and everything should be cleaned out now.

shutdown

void shutdown()

Shutdown the node manager now. If this is using any external resources it should remove those now as the entire application is about to die