xml/dom-openapi/src/com/intellij/util/xml/tree/DomModelTreeStructure.java

   1 /*
   2  * Copyright 2000-2009 JetBrains s.r.o.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package com.intellij.util.xml.tree;
  18
  19 import com.intellij.ui.treeStructure.SimpleTreeStructure;
  20 import com.intellij.util.xml.DomElement;
  21
  22 public class DomModelTreeStructure extends SimpleTreeStructure {
  23   private final DomElement myDomElement;
  24   private AbstractDomElementNode myRootNode;
  25
  26   public DomModelTreeStructure(DomElement root) {
  27     myDomElement = root;
  28   }
  29
  30   protected AbstractDomElementNode createRoot(DomElement rootElement) {
  31     return new BaseDomElementNode(myDomElement);
  32   }
  33
  34   public AbstractDomElementNode getRootElement() {
  35     if (myRootNode == null) {
  36       myRootNode = createRoot(myDomElement);
  37     }
  38     return myRootNode;
  39   }
  40
  41
  42   public DomElement getRootDomElement() {
  43     return myDomElement;
  44   }
  45 }