| /******************************************************************************* |
| * Copyright (c) 2000, 2005 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.ui.javaeditor; |
| |
| import java.util.Collections; |
| import java.util.Iterator; |
| |
| import org.eclipse.jface.text.source.Annotation; |
| import org.eclipse.jface.text.source.IAnnotationModel; |
| |
| |
| /** |
| * Filters problems based on their types. |
| */ |
| public class JavaAnnotationIterator implements Iterator { |
| |
| private Iterator fIterator; |
| private Annotation fNext; |
| private boolean fSkipIrrelevants; |
| private boolean fReturnAllAnnotations; |
| |
| /** |
| * Equivalent to <code>JavaAnnotationIterator(model, skipIrrelevants, false)</code>. |
| */ |
| public JavaAnnotationIterator(IAnnotationModel model, boolean skipIrrelevants) { |
| this(model, skipIrrelevants, false); |
| } |
| |
| /** |
| * Returns a new JavaAnnotationIterator. |
| * @param model the annotation model |
| * @param skipIrrelevants whether to skip irrelevant annotations |
| * @param returnAllAnnotations Whether to return non IJavaAnnotations as well |
| */ |
| public JavaAnnotationIterator(IAnnotationModel model, boolean skipIrrelevants, boolean returnAllAnnotations) { |
| fReturnAllAnnotations= returnAllAnnotations; |
| if (model != null) |
| fIterator= model.getAnnotationIterator(); |
| else |
| fIterator= Collections.EMPTY_LIST.iterator(); |
| fSkipIrrelevants= skipIrrelevants; |
| skip(); |
| } |
| |
| private void skip() { |
| while (fIterator.hasNext()) { |
| Annotation next= (Annotation) fIterator.next(); |
| if (next instanceof IJavaAnnotation) { |
| if (fSkipIrrelevants) { |
| if (!next.isMarkedDeleted()) { |
| fNext= next; |
| return; |
| } |
| } else { |
| fNext= next; |
| return; |
| } |
| } else if (fReturnAllAnnotations) { |
| fNext= next; |
| return; |
| } |
| } |
| fNext= null; |
| } |
| |
| /* |
| * @see Iterator#hasNext() |
| */ |
| public boolean hasNext() { |
| return fNext != null; |
| } |
| |
| /* |
| * @see Iterator#next() |
| */ |
| public Object next() { |
| try { |
| return fNext; |
| } finally { |
| skip(); |
| } |
| } |
| |
| /* |
| * @see Iterator#remove() |
| */ |
| public void remove() { |
| throw new UnsupportedOperationException(); |
| } |
| } |