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    {
022    
023        public static final int SELECTED_NODE_CHANGED = 1;
024        public static final int NODE_EXPANDED = 2;
025        public static final int NODE_COLLAPSED = 4;
026    
027        private int m_nEventType;
028        private transient ITreeStateModel m_objTreeStateModel = null;
029        private transient Object m_objNodeUID = null;
030    
031        /**
032         * Constructor for TreeStateEvent.
033         */
034        public TreeStateEvent(int nEventType, Object objNodeUID,
035                ITreeStateModel objTreeStateModel)
036        {
037            super();
038            m_nEventType = nEventType;
039            m_objNodeUID = objNodeUID;
040            m_objTreeStateModel = objTreeStateModel;
041        }
042    
043        /**
044         * Returns the EventType.
045         * 
046         * @return int
047         */
048        public int getEventType()
049        {
050            return m_nEventType;
051        }
052    
053        public boolean isEvent(int nEventType)
054        {
055            return (getEventType() & nEventType) > 0;
056        }
057    
058        public Object getNodeUID()
059        {
060            return m_objNodeUID;
061        }
062    
063        public ITreeStateModel getTreeStateModel()
064        {
065            return m_objTreeStateModel;
066        }
067    }