mcs/class/System.XML/System.Xml/XmlNamedNodeMap.cs

   1 //
   2 // System.Xml.XmlNamedNodeMap
   3 //
   4 // Author:
   5 //   Jason Diamond (jason@injektilo.org)
   6 //   Duncan Mak  (duncan@ximian.com)
   7 //
   8 // (C) 2002 Jason Diamond  http://injektilo.org/
   9 //
  10
  11 using System;
  12 using System.Collections;
  13
  14 namespace System.Xml
  15 {
  16         public class XmlNamedNodeMap : IEnumerable
  17         {
  18                 XmlNode parent;
  19                 ArrayList nodeList;
  20                 bool readOnly = false;
  21
  22                 internal XmlNamedNodeMap (XmlNode parent)
  23                 {
  24                         this.parent = parent;
  25                         nodeList = new ArrayList ();
  26                 }
  27
  28                 public virtual int Count {
  29                         get { return nodeList.Count; }
  30                 }
  31
  32                 public virtual IEnumerator GetEnumerator ()
  33                 {
  34                         return nodeList.GetEnumerator ();
  35                 }
  36
  37                 public virtual XmlNode GetNamedItem (string name)
  38                 {
  39                         foreach (XmlNode node in nodeList) {
  40                                 if (node.Name == name)
  41                                         return node;
  42                         }
  43                         return null;
  44                 }
  45
  46                 public virtual XmlNode GetNamedItem (string localName, string namespaceURI)
  47                 {
  48                         foreach (XmlNode node in nodeList) {
  49                                 if ((node.LocalName == localName)
  50                                     && (node.NamespaceURI == namespaceURI))
  51                                         return node;
  52                         }
  53
  54                         return null;
  55                 }
  56
  57                 public virtual XmlNode Item (int index)
  58                 {
  59                         if (index < 0 || index > nodeList.Count)
  60                                 return null;
  61                         else
  62                                 return (XmlNode) nodeList [index];
  63                 }
  64
  65                 public virtual XmlNode RemoveNamedItem (string name)
  66                 {
  67                         foreach (XmlNode node in nodeList)
  68                                 if (node.Name == name) {
  69                                         nodeList.Remove (node);
  70                                         return node;
  71                                 }
  72
  73                         return null;
  74                 }
  75
  76                 public virtual XmlNode RemoveNamedItem (string localName, string namespaceURI)
  77                 {
  78                         foreach (XmlNode node in nodeList)
  79                                 if ((node.LocalName == localName)
  80                                     && (node.NamespaceURI == namespaceURI)) {
  81                                         nodeList.Remove (node);
  82                                         return node;
  83                                 }
  84
  85                         return null;
  86                 }
  87
  88                 public virtual XmlNode SetNamedItem (XmlNode node)
  89                 {
  90                         if (readOnly || (node.OwnerDocument != parent.OwnerDocument))
  91                                 throw new ArgumentException ("Cannot add to NodeMap.");
  92
  93                         foreach (XmlNode x in nodeList)
  94                                 if (x.Name == node.Name) {
  95                                         nodeList.Remove (x);
  96                                         nodeList.Add (node);
  97                                         return x;
  98                                 }
  99
 100                         nodeList.Add (node);
 101                         return null;
 102                 }
 103
 104                 internal ArrayList Nodes { get { return nodeList; } }
 105         }
 106 }