eclipse/runtime/org.argeo.eclipse.ui/src/main/java/org/argeo/eclipse/ui/TreeParent.java

   1 /*
   2  * Copyright (C) 2010 Mathieu Baudier <mbaudier@argeo.org>
   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 org.argeo.eclipse.ui;
  18
  19 import java.util.ArrayList;
  20 import java.util.List;
  21
  22 public class TreeParent extends TreeObject {
  23         private List<Object> children;
  24
  25         private boolean loaded;
  26
  27         public TreeParent(String name) {
  28                 super(name);
  29                 children = new ArrayList<Object>();
  30                 loaded = false;
  31         }
  32
  33         public synchronized void addChild(Object child) {
  34                 loaded = true;
  35                 children.add(child);
  36                 if (child instanceof TreeParent)
  37                         ((TreeParent) child).setParent(this);
  38         }
  39
  40         public synchronized void removeChild(Object child) {
  41                 children.remove(child);
  42                 if (child instanceof TreeParent)
  43                         ((TreeParent) child).setParent(null);
  44         }
  45
  46         public synchronized void clearChildren() {
  47                 loaded = false;
  48                 children.clear();
  49         }
  50
  51         public synchronized Object[] getChildren() {
  52                 return children.toArray(new Object[children.size()]);
  53         }
  54
  55         public synchronized boolean hasChildren() {
  56                 return children.size() > 0;
  57         }
  58
  59         public Object getChildByName(String name) {
  60                 for (Object child : children) {
  61                         if (child.toString().equals(name))
  62                                 return child;
  63                 }
  64                 return null;
  65         }
  66
  67         public synchronized Boolean isLoaded() {
  68                 return loaded;
  69         }
  70 }