/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.openide.explorer.view;


/** Base class for all models that work over nodes and are swing thread safe.
*
* @author Jaroslav Tulach
*/
interface NodeModel extends java.util.EventListener {
    /** Notification of children addded event. Modifies the list of nodes
    * and fires info to all listeners.
    */
    abstract void added(VisualizerEvent.Added ev);

    /** Notification that children has been removed. Modifies the list of nodes
    * and fires info to all listeners.
    */
    abstract void removed(VisualizerEvent.Removed ev);

    /** Notification that children has been reordered. Modifies the list of nodes
    * and fires info to all listeners.
    */
    abstract void reordered(VisualizerEvent.Reordered ev);

    /** Update a visualizer (change of name, icon, description, etc.)
    */
    abstract void update(VisualizerNode v);

    /** Notification about large change in the sub tree
     */
    abstract void structuralChange(VisualizerNode v);
}
