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
015package org.apache.tapestry.contrib.tree.model;
016
017import java.util.Set;
018
019/**
020 * @author ceco
021 */
022
023public interface ITreeStateModel {
024        Set getExpandSelection();
025        /*
026         * Return the selected node unique key
027         */
028        Object getSelectedNode();       
029        public void setSelectedNode(Object objUniqueKey);
030
031        void expand(Object objUniqueKey);
032        void expandPath(Object objUniqueKey);
033        void collapse(Object objUniqueKey);
034        void collapsePath(Object objUniqueKey);
035
036        boolean isUniqueKeyExpanded(Object objUniqueKey);
037        
038        void resetState();
039}