/*
* The Apache Software License, Version 1.1
*
*
* Copyright (c) 2003 The Apache Software Foundation.  All rights 
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer. 
*
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in
*    the documentation and/or other materials provided with the
*    distribution.
*
* 3. The end-user documentation included with the redistribution,
*    if any, must include the following acknowledgment:  
*       "This product includes software developed by the
*        Apache Software Foundation (http://www.apache.org/)."
*    Alternately, this acknowledgment may appear in the software itself,
*    if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" must 
*    not be used to endorse or promote products derived from this
*    software without prior written permission. For written 
*    permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache 
*    XMLBeans", nor may "Apache" appear in their name, without prior 
*    written permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation and was
* originally based on software copyright (c) 2000-2003 BEA Systems 
* Inc., <http://www.bea.com/>. For more information on the Apache Software
* Foundation, please see <http://www.apache.org/>.
*/

package org.apache.xmlbeans.impl.common;

import weblogic.xml.stream.XMLName;

public class XmlNameImpl implements XMLName {

  private String namespaceUri=null;
  private String localName=null;
  private String prefix=null;
  private int hash = 0;

  public XmlNameImpl () {}
  public XmlNameImpl (String localName) {
    this.localName = localName;
  }
  public XmlNameImpl (String namespaceUri,String localName) {
    setNamespaceUri(namespaceUri);
    this.localName = localName;
  }
  public XmlNameImpl (String namespaceUri,
               String localName,
               String prefix) {
    setNamespaceUri(namespaceUri);
    this.localName = localName;
    this.prefix = prefix;
  }

  public String getNamespaceUri() { return namespaceUri; }
  public String getLocalName() { return localName; }
  public String getPrefix() { return prefix; }

  public void setNamespaceUri(String namespaceUri) {
    hash = 0;
    if (namespaceUri != null && namespaceUri.equals("")) return;
    this.namespaceUri = namespaceUri; 
  }
  public void setLocalName(String localName) { 
    this.localName = localName; 
    hash = 0;
  }
  public void setPrefix(String prefix) { this.prefix = prefix; }

  public String getQualifiedName() {
    if (prefix != null && prefix.length() > 0)
      return prefix + ":" + localName;
    else
      return localName;
  }
  public String toString() {
    if (getNamespaceUri() != null)
      return "['"+getNamespaceUri()+"']:"+getQualifiedName();
    else 
      return getQualifiedName();
  }

  public final int hashCode() {
    int tmp_hash = hash;
    if (tmp_hash == 0) {
      tmp_hash = 17;
      if (namespaceUri != null) {
	tmp_hash = 37*tmp_hash + namespaceUri.hashCode();
      }
      if (localName != null) {
	tmp_hash = 37*tmp_hash + localName.hashCode();
      }
      hash = tmp_hash;
    }
    return tmp_hash;
  }

  public final boolean equals(Object obj) {
    if (obj == this) return true;

    if (obj instanceof XMLName) {
      final XMLName name= (XMLName) obj;

      final String lname = localName;
      if (!(lname==null ? name.getLocalName()==null : 
	    lname.equals(name.getLocalName())))
	return false;

      final String uri = namespaceUri;
      return (uri==null ? name.getNamespaceUri()==null :
	      uri.equals(name.getNamespaceUri()));
	
    }
    return false;
  }


}