code: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements. See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership. The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the  "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  /*
   * $Id$
   */
  package org.apache.xml.utils;
  
  /**
   * This class holds information about the namespace info
   * of a node.  It is used to optimize namespace lookup in
   * a generic DOM.
   * @xsl.usage internal
   */
  public class NSInfo
  {
  
    /**
     * Constructor NSInfo
     *
     *
     * @param hasProcessedNS Flag indicating whether namespaces
     * have been processed for this node 
     * @param hasXMLNSAttrs Flag indicating whether this node
     * has XMLNS attributes. 
     */
    public NSInfo(boolean hasProcessedNS, boolean hasXMLNSAttrs)
    {
  
      m_hasProcessedNS = hasProcessedNS;
      m_hasXMLNSAttrs = hasXMLNSAttrs;
      m_namespace = null;
      m_ancestorHasXMLNSAttrs = ANCESTORXMLNSUNPROCESSED;
    }
  
    // Unused at the moment
  
    /**
     * Constructor NSInfo
     *
     *
     * @param hasProcessedNS Flag indicating whether namespaces
     * have been processed for this node 
     * @param hasXMLNSAttrs Flag indicating whether this node
     * has XMLNS attributes. 
     * @param ancestorHasXMLNSAttrs Flag indicating whether one of this node's
     * ancestor has XMLNS attributes.
     */
    public NSInfo(boolean hasProcessedNS, boolean hasXMLNSAttrs,
                  int ancestorHasXMLNSAttrs)
    {
  
      m_hasProcessedNS = hasProcessedNS;
      m_hasXMLNSAttrs = hasXMLNSAttrs;
      m_ancestorHasXMLNSAttrs = ancestorHasXMLNSAttrs;
      m_namespace = null;
    }
  
    /**
     * Constructor NSInfo
     *
     *
     * @param namespace The namespace URI 
     * @param hasXMLNSAttrs Flag indicating whether this node
     * has XMLNS attributes.
     */
    public NSInfo(String namespace, boolean hasXMLNSAttrs)
    {
  
      m_hasProcessedNS = true;
      m_hasXMLNSAttrs = hasXMLNSAttrs;
      m_namespace = namespace;
      m_ancestorHasXMLNSAttrs = ANCESTORXMLNSUNPROCESSED;
    }
  
    /** The namespace URI          */
    public String m_namespace;
  
    /** Flag indicating whether this node has an XMLNS attribute          */
    public boolean m_hasXMLNSAttrs;
  
    /** Flag indicating whether namespaces have been processed for this node */
    public boolean m_hasProcessedNS;
  
    /** Flag indicating whether one of this node's ancestor has an XMLNS attribute          */
    public int m_ancestorHasXMLNSAttrs;
  
    /** Constant for ancestors XMLNS atributes not processed          */
    public static final int ANCESTORXMLNSUNPROCESSED = 0;
  
    /** Constant indicating an ancestor has an XMLNS attribute           */
    public static final int ANCESTORHASXMLNS = 1;
  
    /** Constant indicating ancestors don't have an XMLNS attribute           */
    public static final int ANCESTORNOXMLNS = 2;
  }
  