001    // Copyright 2004, 2005 The Apache Software Foundation
002    //
003    // Licensed under the Apache License, Version 2.0 (the "License");
004    // you may not use this file except in compliance with the License.
005    // You may obtain a copy of the License at
006    //
007    //     http://www.apache.org/licenses/LICENSE-2.0
008    //
009    // Unless required by applicable law or agreed to in writing, software
010    // distributed under the License is distributed on an "AS IS" BASIS,
011    // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012    // See the License for the specific language governing permissions and
013    // limitations under the License.
014    
015    package org.apache.tapestry.contrib.tree.model;
016    
017    /**
018     * @author ceco
019     */
020    public class TreeStateEvent {
021            public static final int SELECTED_NODE_CHANGED   = 1;
022            public static final int NODE_EXPANDED                   = 2;
023            public static final int NODE_COLLAPSED                  = 4;
024            
025            private int m_nEventType;
026            private transient ITreeStateModel m_objTreeStateModel = null;
027            private transient Object m_objNodeUID = null;
028    
029            /**
030             * Constructor for TreeStateEvent.
031             */
032            public TreeStateEvent(int nEventType, Object objNodeUID, ITreeStateModel objTreeStateModel) {
033                    super();
034                    m_nEventType = nEventType;
035                    m_objNodeUID = objNodeUID;
036                    m_objTreeStateModel = objTreeStateModel;
037            }
038    
039            /**
040             * Returns the EventType.
041             * @return int
042             */
043            public int getEventType() {
044                    return m_nEventType;
045            }
046    
047        public boolean isEvent(int nEventType){
048                    return (getEventType() & nEventType) > 0;
049            }
050    
051            public Object getNodeUID() {
052                    return m_objNodeUID;
053            }
054    
055            public ITreeStateModel getTreeStateModel() {
056                    return m_objTreeStateModel;
057            }
058    }