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Java > Open Source Codes > org > eclipse > jdt > internal > ui > filters > LibraryFilter


1 /*******************************************************************************
2  * Copyright (c) 2000, 2006 IBM Corporation and others.
3  * All rights reserved. This program and the accompanying materials
4  * are made available under the terms of the Eclipse Public License v1.0
5  * which accompanies this distribution, and is available at
6  * http://www.eclipse.org/legal/epl-v10.html
7  *
8  * Contributors:
9  * IBM Corporation - initial API and implementation
10  *******************************************************************************/
11 package org.eclipse.jdt.internal.ui.filters;
12
13 import org.eclipse.core.resources.IProject;
14 import org.eclipse.core.resources.IResource;
15
16 import org.eclipse.jface.viewers.Viewer;
17 import org.eclipse.jface.viewers.ViewerFilter;
18
19 import org.eclipse.jdt.core.IPackageFragmentRoot;
20
21 import org.eclipse.jdt.internal.ui.packageview.ClassPathContainer;
22
23
24 /**
25  * The LibraryFilter is a filter used to determine whether
26  * a Java library is shown
27  */
28 public class LibraryFilter extends ViewerFilter {
29     
30     /* (non-Javadoc)
31      * Method declared on ViewerFilter.
32      */
33     public boolean select(Viewer viewer, Object JavaDoc parentElement, Object JavaDoc element) {
34         if (element instanceof IPackageFragmentRoot) {
35             IPackageFragmentRoot root= (IPackageFragmentRoot)element;
36             if (root.isArchive()) {
37                 // don't filter out JARs contained in the project itself
38 IResource resource= root.getResource();
39                 if (resource != null) {
40                     IProject jarProject= resource.getProject();
41                     IProject container= root.getJavaProject().getProject();
42                     return container.equals(jarProject);
43                 }
44                 return false;
45             }
46         } else if (element instanceof ClassPathContainer.RequiredProjectWrapper) {
47             return false;
48         }
49         return true;
50     }
51 }
52
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