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 import java.util.Set; 018 019 /** 020 * @author ceco 021 */ 022 023 public 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 }