1/*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the  "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
9 *
10 *     http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 */
18/*
19 * $Id: NSInfo.java 468655 2006-10-28 07:12:06Z minchau $
20 */
21package org.apache.xml.utils;
22
23/**
24 * This class holds information about the namespace info
25 * of a node.  It is used to optimize namespace lookup in
26 * a generic DOM.
27 * @xsl.usage internal
28 */
29public class NSInfo
30{
31
32  /**
33   * Constructor NSInfo
34   *
35   *
36   * @param hasProcessedNS Flag indicating whether namespaces
37   * have been processed for this node
38   * @param hasXMLNSAttrs Flag indicating whether this node
39   * has XMLNS attributes.
40   */
41  public NSInfo(boolean hasProcessedNS, boolean hasXMLNSAttrs)
42  {
43
44    m_hasProcessedNS = hasProcessedNS;
45    m_hasXMLNSAttrs = hasXMLNSAttrs;
46    m_namespace = null;
47    m_ancestorHasXMLNSAttrs = ANCESTORXMLNSUNPROCESSED;
48  }
49
50  // Unused at the moment
51
52  /**
53   * Constructor NSInfo
54   *
55   *
56   * @param hasProcessedNS Flag indicating whether namespaces
57   * have been processed for this node
58   * @param hasXMLNSAttrs Flag indicating whether this node
59   * has XMLNS attributes.
60   * @param ancestorHasXMLNSAttrs Flag indicating whether one of this node's
61   * ancestor has XMLNS attributes.
62   */
63  public NSInfo(boolean hasProcessedNS, boolean hasXMLNSAttrs,
64                int ancestorHasXMLNSAttrs)
65  {
66
67    m_hasProcessedNS = hasProcessedNS;
68    m_hasXMLNSAttrs = hasXMLNSAttrs;
69    m_ancestorHasXMLNSAttrs = ancestorHasXMLNSAttrs;
70    m_namespace = null;
71  }
72
73  /**
74   * Constructor NSInfo
75   *
76   *
77   * @param namespace The namespace URI
78   * @param hasXMLNSAttrs Flag indicating whether this node
79   * has XMLNS attributes.
80   */
81  public NSInfo(String namespace, boolean hasXMLNSAttrs)
82  {
83
84    m_hasProcessedNS = true;
85    m_hasXMLNSAttrs = hasXMLNSAttrs;
86    m_namespace = namespace;
87    m_ancestorHasXMLNSAttrs = ANCESTORXMLNSUNPROCESSED;
88  }
89
90  /** The namespace URI          */
91  public String m_namespace;
92
93  /** Flag indicating whether this node has an XMLNS attribute          */
94  public boolean m_hasXMLNSAttrs;
95
96  /** Flag indicating whether namespaces have been processed for this node */
97  public boolean m_hasProcessedNS;
98
99  /** Flag indicating whether one of this node's ancestor has an XMLNS attribute          */
100  public int m_ancestorHasXMLNSAttrs;
101
102  /** Constant for ancestors XMLNS atributes not processed          */
103  public static final int ANCESTORXMLNSUNPROCESSED = 0;
104
105  /** Constant indicating an ancestor has an XMLNS attribute           */
106  public static final int ANCESTORHASXMLNS = 1;
107
108  /** Constant indicating ancestors don't have an XMLNS attribute           */
109  public static final int ANCESTORNOXMLNS = 2;
110}
111