Coverage Report - org.apache.commons.configuration.tree.ViewNode
 
Classes in this File Line Coverage Branch Coverage Complexity
ViewNode
100%
23/23
100%
6/6
3
 
 1  
 /*
 2  
  * Licensed to the Apache Software Foundation (ASF) under one or more
 3  
  * contributor license agreements.  See the NOTICE file distributed with
 4  
  * this work for additional information regarding copyright ownership.
 5  
  * The ASF licenses this file to You under the Apache License, Version 2.0
 6  
  * (the "License"); you may not use this file except in compliance with
 7  
  * the License.  You may obtain a copy of the License at
 8  
  *
 9  
  *     http://www.apache.org/licenses/LICENSE-2.0
 10  
  *
 11  
  * Unless required by applicable law or agreed to in writing, software
 12  
  * distributed under the License is distributed on an "AS IS" BASIS,
 13  
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 14  
  * See the License for the specific language governing permissions and
 15  
  * limitations under the License.
 16  
  */
 17  
 package org.apache.commons.configuration.tree;
 18  
 
 19  
 import java.util.Iterator;
 20  
 
 21  
 /**
 22  
  * <p>
 23  
  * A specialized node implementation to be used in view configurations.
 24  
  * </p>
 25  
  * <p>
 26  
  * Some configurations provide a logical view on the nodes of other
 27  
  * configurations. These configurations construct their own hierarchy of nodes
 28  
  * based on the node trees of their source configurations. This special node
 29  
  * class can be used for this purpose. It allows child nodes and attributes to
 30  
  * be added without changing their parent node. So a node can belong to a
 31  
  * hierarchy of nodes of a source configuration, but be also contained in a view
 32  
  * configuration.
 33  
  * </p>
 34  
  *
 35  
  * @author <a
 36  
  * href="http://jakarta.apache.org/commons/configuration/team-list.html">Commons
 37  
  * Configuration team</a>
 38  
  * @version $Id: ViewNode.java 439648 2006-09-02 20:42:10Z oheger $
 39  
  * @since 1.3
 40  
  */
 41  337
 public class ViewNode extends DefaultConfigurationNode
 42  
 {
 43  
     /**
 44  
      * Adds an attribute to this view node. The new attribute's parent node will
 45  
      * be saved.
 46  
      *
 47  
      * @param attr the attribute node to be added
 48  
      */
 49  
     public void addAttribute(ConfigurationNode attr)
 50  
     {
 51  47
         ConfigurationNode parent = null;
 52  
 
 53  47
         if (attr != null)
 54  
         {
 55  46
             parent = attr.getParentNode();
 56  46
             super.addAttribute(attr);
 57  46
             attr.setParentNode(parent);
 58  
         }
 59  
         else
 60  
         {
 61  1
             throw new IllegalArgumentException("Attribute node must not be null!");
 62  
         }
 63  46
     }
 64  
 
 65  
     /**
 66  
      * Adds a child node to this view node. The new child's parent node will be
 67  
      * saved.
 68  
      *
 69  
      * @param child the child node to be added
 70  
      */
 71  
     public void addChild(ConfigurationNode child)
 72  
     {
 73  1555
         ConfigurationNode parent = null;
 74  
 
 75  1555
         if (child != null)
 76  
         {
 77  1554
             parent = child.getParentNode();
 78  1554
             super.addChild(child);
 79  1554
             child.setParentNode(parent);
 80  
         }
 81  
         else
 82  
         {
 83  1
             throw new IllegalArgumentException("Child node must not be null!");
 84  
         }
 85  1554
     }
 86  
 
 87  
     /**
 88  
      * Adds all attribute nodes of the given source node to this view node.
 89  
      *
 90  
      * @param source the source node
 91  
      */
 92  
     public void appendAttributes(ConfigurationNode source)
 93  
     {
 94  395
         if (source != null)
 95  
         {
 96  819
             for (Iterator it = source.getAttributes().iterator(); it.hasNext();)
 97  
             {
 98  31
                 addAttribute((ConfigurationNode) it.next());
 99  
             }
 100  
         }
 101  395
     }
 102  
 
 103  
     /**
 104  
      * Adds all child nodes of the given source node to this view node.
 105  
      *
 106  
      * @param source the source node
 107  
      */
 108  
     public void appendChildren(ConfigurationNode source)
 109  
     {
 110  72
         if (source != null)
 111  
         {
 112  576
             for (Iterator it = source.getChildren().iterator(); it.hasNext();)
 113  
             {
 114  434
                 addChild((ConfigurationNode) it.next());
 115  
             }
 116  
         }
 117  72
     }
 118  
 }