content: /*
   *  This file is part of AndroidIDE.
   *
   *  AndroidIDE is free software: you can redistribute it and/or modify
   *  it under the terms of the GNU General Public License as published by
   *  the Free Software Foundation, either version 3 of the License, or
   *  (at your option) any later version.
   *
   *  AndroidIDE is distributed in the hope that it will be useful,
   *  but WITHOUT ANY WARRANTY; without even the implied warranty of
   *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   *  GNU General Public License for more details.
   *
   *  You should have received a copy of the GNU General Public License
   *   along with AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
   */
  
  /*
   * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
   * particular file as subject to the "Classpath" exception as provided
   * by Oracle in the LICENSE file that accompanied this code.
   *
   * This code is distributed in the hope that it will be useful, but WITHOUT
   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
   * version 2 for more details (a copy is included in the LICENSE file that
   * accompanied this code).
   *
   * You should have received a copy of the GNU General Public License version
   * 2 along with this work; if not, write to the Free Software Foundation,
   * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   *
   * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
   * or visit www.oracle.com if you need additional information or have any
   * questions.
   */
  
  package jaxp.sun.org.apache.xerces.internal.util;
  
  //java imports
  import java.util.Iterator ;
  import java.util.NoSuchElementException;
  
  //xerces imports
  
  
  /**
   *
   * @author  Neeraj Bajaj, Sun Microsystems
   */
  
  /**
   * Its better to extend the functionality of existing XMLAttributesImpl and also make it of type Iterator.
   * We can directly  give an object of type iterator from StartElement event. We should also have
   * Attribute object of type javax.xml.stream.Attribute internally. It would avoid the need of creating
   * new javax.xml.stream.Attribute object at the later stage.
   *
   * Should we change XMLAttributes interface to implement Iteraotr ? I think its better avoid touching XNI as
   * much as possible. - NB.
   */
  
  public class XMLAttributesIteratorImpl extends XMLAttributesImpl implements Iterator {
  
      //pointer to current position.
      protected int fCurrent = 0 ;
  
      protected XMLAttributesImpl.Attribute fLastReturnedItem ;
  
      /** Creates a new instance of XMLAttributesIteratorImpl */
      public XMLAttributesIteratorImpl() {
      }
  
      public boolean hasNext() {
          return fCurrent < getLength() ? true : false ;
      }//hasNext()
  
      public Object next() {
          if(hasNext()){
              // should this be of type javax.xml.stream.Attribute ?
              return fLastReturnedItem = fAttributes[fCurrent++] ;
          }
          else{
              throw new NoSuchElementException() ;
          }
      }//next
  
      public void remove() {
          //make sure that only last returned item can be removed.
          if(fLastReturnedItem == fAttributes[fCurrent - 1]){
              //remove the attribute at current index and lower the current position by 1.
              removeAttributeAt(fCurrent--) ;
          }
          else {
              //either the next method has been called yet, or the remove method has already been called
              //after the last call to the next method.
              throw new IllegalStateException();
          }
      }//remove
  
      public void removeAllAttributes() {
          super.removeAllAttributes() ;
          fCurrent = 0 ;
      }
      /** xxx: should we be doing this way ? Attribute event defines so many functions which doesn't make any sense
       *for Attribute.
       *
       */
      /*
      class AttributeImpl extends com.sun.org.apache.xerces.internal.util.XMLAttributesImpl.Attribute implements javax.xml.stream.events.Attribute{
  
      }
       */
  
  } //XMLAttributesIteratorImpl
  