net.sourceforge.phpeclipse.ui/src/net/sourceforge/phpeclipse/xml/ui/internal/text/XMLAnnotationIterator.java

   1 /*
   2  * Copyright (c) 2002-2004 Widespace, OU and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Common Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/cpl-v10.html
   7  *
   8  * Contributors:
   9  *     Igor Malinin - initial contribution
  10  *
  11  * $Id: XMLAnnotationIterator.java,v 1.2 2006-10-21 23:14:13 pombredanne Exp $
  12  */
  13 package net.sourceforge.phpeclipse.xml.ui.internal.text;
  14
  15 import java.util.Iterator;
  16
  17 import org.eclipse.jface.text.source.Annotation;
  18 import org.eclipse.jface.text.source.IAnnotationModel;
  19
  20 /**
  21  * @author Igor Malinin
  22  */
  23 public class XMLAnnotationIterator implements Iterator {
  24         private boolean skipIrrelevants;
  25
  26         private Iterator iterator;
  27
  28         private Annotation next;
  29
  30         public XMLAnnotationIterator(IAnnotationModel model, boolean skipIrrelevants) {
  31                 this.skipIrrelevants = skipIrrelevants;
  32
  33                 iterator = model.getAnnotationIterator();
  34                 skip();
  35         }
  36
  37         private void skip() {
  38                 while (iterator.hasNext()) {
  39                         Annotation next = (Annotation) iterator.next();
  40                         if (next instanceof XMLAnnotation) {
  41                                 if (skipIrrelevants) {
  42                                         if (!next.isMarkedDeleted()) {
  43                                                 this.next = next;
  44                                                 return;
  45                                         }
  46                                 } else {
  47                                         this.next = next;
  48                                         return;
  49                                 }
  50                         }
  51                 }
  52
  53                 this.next = null;
  54         }
  55
  56         /*
  57          * @see java.util.Iterator#hasNext()
  58          */
  59         public boolean hasNext() {
  60                 return (next != null);
  61         }
  62
  63         /*
  64          * @see java.util.Iterator#next()
  65          */
  66         public Object next() {
  67                 try {
  68                         return next;
  69                 } finally {
  70                         skip();
  71                 }
  72         }
  73
  74         /*
  75          * @see java.util.Iterator#remove()
  76          */
  77         public void remove() {
  78                 throw new UnsupportedOperationException();
  79         }
  80 }