net.sourceforge.phpeclipse.xml.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 1.1 2004-09-02 18:28:03 jsurfer 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 /**
  22  * @author Igor Malinin
  23  */
  24 public class XMLAnnotationIterator implements Iterator {
  25         private boolean skipIrrelevants;
  26
  27         private Iterator iterator;
  28         private Annotation next;
  29
  30         public XMLAnnotationIterator(
  31                 IAnnotationModel model, boolean skipIrrelevants
  32         ) {
  33                 this.skipIrrelevants = skipIrrelevants;
  34
  35                 iterator = model.getAnnotationIterator();
  36                 skip();
  37         }
  38
  39         private void skip() {
  40                 while (iterator.hasNext()) {
  41                         Annotation next = (Annotation) iterator.next();
  42                         if (next instanceof XMLAnnotation) {
  43                                 if (skipIrrelevants) {
  44                                         if (!next.isMarkedDeleted()) {
  45                                                 this.next = next;
  46                                                 return;
  47                                         }
  48                                 } else {
  49                                         this.next = next;
  50                                         return;
  51                                 }
  52                         }
  53                 }
  54
  55                 this.next = null;
  56         }
  57
  58         /*
  59          * @see java.util.Iterator#hasNext()
  60          */
  61         public boolean hasNext() {
  62                 return (next != null);
  63         }
  64
  65         /*
  66          * @see java.util.Iterator#next()
  67          */
  68         public Object next() {
  69                 try {
  70                         return next;
  71                 } finally {
  72                         skip();
  73                 }
  74         }
  75
  76         /*
  77          * @see java.util.Iterator#remove()
  78          */
  79         public void remove() {
  80                 throw new UnsupportedOperationException();
  81         }
  82 }