JavaModelInfo


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.core;
12  
13  import org.eclipse.core.resources.IProject;
14  import org.eclipse.core.resources.ResourcesPlugin;
15  
16  /**
17   * Implementation of IJavaModel. A Java Model is specific to a
18   * workspace.
19   *
20   * @see org.eclipse.jdt.core.IJavaModel
21   */
22  public class JavaModelInfo extends OpenableElementInfo {
23  
24      /**
25       * A array with all the non-java projects contained by this model
26       */
27      Object  [] nonJavaResources;
28  
29  /**
30   * Compute the non-java resources contained in this java project.
31   */
32  private Object  [] computeNonJavaResources() {
33      IProject[] projects = ResourcesPlugin.getWorkspace().getRoot().getProjects();
34      int length = projects.length;
35      Object  [] resources = null;
36      int index = 0;
37      for (int i = 0; i < length; i++) {
38          IProject project = projects[i];
39          if (!JavaProject.hasJavaNature(project)) {
40              if (resources == null) {
41                  resources = new Object  [length];
42              }
43              resources[index++] = project;
44          }
45      }
46      if (index == 0) return NO_NON_JAVA_RESOURCES;
47      if (index < length) {
48          System.arraycopy(resources, 0, resources = new Object  [index], 0, index);
49      }
50      return resources;
51  }
52  
53  /**
54   * Returns an array of non-java resources contained in the receiver.
55   */
56  Object  [] getNonJavaResources() {
57  
58      if (this.nonJavaResources == null) {
59          this.nonJavaResources = computeNonJavaResources();
60      }
61      return this.nonJavaResources;
62  }
63  }
64
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