/* DomExtern.java -- 
   Copyright (C) 1999,2000,2001,2004 Free Software Foundation, Inc.

This file is part of GNU Classpath.

GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
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General Public License for more details.

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02110-1301 USA.

Linking this library statically or dynamically with other modules is
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permission to link this library with independent modules to produce an
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package gnu.xml.dom;

/**
 * <p> Abstract implemention of nodes describing external DTD-related
 * objects.  This facilitates reusing code for Entity, Notation, and
 * DocumentType (really, external subset) nodes.  Such support is not
 * part of the core DOM; it's for the "XML" feature.  </p>
 *
 * <p> Note that you are strongly advised to avoid using the DOM
 * features that take advantage of this class, since (as of L2) none
 * of them is defined fully enough to permit full use of the
 * XML feature they partially expose. </p>
 *
 * @author David Brownell 
 * @author <a href='mailto:dog@gnu.org'>Chris Burdess</a>
 */
public abstract class DomExtern
  extends DomNode
{
 
  private final String name;
  private final String publicId;
  private final String systemId;
  
  /**
   * Constructs a node associated with the specified document,
   * with the specified descriptive data.
   *
   * @param owner The document with which this object is associated
   * @param name Name of this object
   * @param publicId If non-null, provides the entity's PUBLIC identifier
   * @param systemId If non-null, provides the entity's SYSTEM identifier
   */
  // package private
  DomExtern(short nodeType,
            DomDocument owner,
            String name,
            String publicId,
            String systemId)
  {
    super(nodeType, owner);
    this.name = name;
    this.publicId = publicId;
    this.systemId = systemId;
  }

  /**
   * <b>DOM L1</b>
   * Returns the SYSTEM identifier associated with this object, if any.
   */
  public final String getSystemId()
  {
    return systemId;
  }

  /**
   * <b>DOM L1</b>
   * Returns the PUBLIC identifier associated with this object, if any.
   */
  public final String getPublicId()
  {
    return publicId;
  }
  
  /**
   * <b>DOM L1</b>
   * Returns the object's name.
   */
  public final String getNodeName()
  {
    return name;
  }

  public final String getLocalName()
  {
    return name;
  }
  
}