/*******************************************************************************
 * Copyright (c) 2012, 2013 Association for Decentralized Information Management in
 * Industry THTH ry.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     VTT Technical Research Centre of Finland - initial API and implementation
 *******************************************************************************/
package org.simantics.g3d.scenegraph.base;


public interface NodeListener {

	/**
	 * Event occurring when a node's property is changed
	 * @param node
	 * @param child
	 * @param rel
	 */
	public void propertyChanged(INode node, String id);
	
	/**
	 * Event occurring when a new node is added to the scene-graph
	 * @param node
	 * @param child
	 * @param rel
	 */
	public <T extends INode> void nodeAdded(ParentNode<T> node, INode child, String rel);
	
	/**
	 * Event occurring when a node is removed from the scene-graph
	 * @param nodeThe node, which contained the removed node.
	 * @param child The removed node.
	 * @param rel 
	 */
	public <T extends INode> void nodeRemoved(ParentNode<T> node, INode child, String rel);
}