| /* |
| * 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 com.sun.org.apache.xerces.internal.util; |
| |
| //java imports |
| import java.util.Iterator ; |
| import java.util.NoSuchElementException; |
| |
| //xerces imports |
| import com.sun.org.apache.xerces.internal.util.XMLAttributesImpl ; |
| |
| /** |
| * |
| * @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 |