/*

 * reserved comment block

 * DO NOT REMOVE OR ALTER!

 */

/*

 * 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.

 */

package com.sun.org.apache.xml.internal.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;

}