| /******************************************************************************* |
| * Copyright (c) 2007, 2008 Oracle. 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: |
| * Oracle - initial API and implementation |
| ******************************************************************************/ |
| package org.eclipse.jpt.utility.model.listener; |
| |
| import org.eclipse.jpt.utility.model.event.TreeChangeEvent; |
| |
| /** |
| * A "tree change" event gets fired whenever a model changes a "bound" |
| * tree. You can register a TreeChangeListener with a source |
| * model so as to be notified of any bound tree updates. |
| * |
| * Provisional API: This interface is part of an interim API that is still |
| * under development and expected to change significantly before reaching |
| * stability. It is available at this early stage to solicit feedback from |
| * pioneering adopters on the understanding that any code that uses this API |
| * will almost certainly be broken (repeatedly) as the API evolves. |
| */ |
| public interface TreeChangeListener extends ChangeListener { |
| |
| /** |
| * This method gets called when a node is added to a bound tree. |
| * |
| * @param event A TreeChangeEvent describing the event source, |
| * the tree that changed, and the path to the node that was added. |
| */ |
| void nodeAdded(TreeChangeEvent event); |
| |
| /** |
| * This method gets called when a node is removed from a bound tree. |
| * |
| * @param event A TreeChangeEvent describing the event source, |
| * the tree that changed, and the path to the node that was removed. |
| */ |
| void nodeRemoved(TreeChangeEvent event); |
| |
| /** |
| * This method gets called when a bound tree is cleared. |
| * |
| * @param event A TreeChangeEvent describing the event source, |
| * the tree that changed, and an empty path. |
| */ |
| void treeCleared(TreeChangeEvent event); |
| |
| /** |
| * This method gets called when a portion of a bound tree is changed in |
| * a manner that is not easily characterized by the other methods in this |
| * interface. |
| * |
| * @param event A TreeChangeEvent describing the event source, |
| * the tree that changed, and the path to the branch of the |
| * tree that changed. |
| */ |
| void treeChanged(TreeChangeEvent event); |
| |
| } |