XMLCore


1   /*******************************************************************************
2    * Copyright (c) 2000, 2004 IBM Corporation 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    *     IBM Corporation - initial API and implementation
10   *******************************************************************************/
11  package org.eclipse.ant.internal.ui.editor.outline;
12  
13  import java.util.ArrayList  ;
14  import java.util.Iterator  ;
15  import java.util.List  ;
16  
17  /**
18   * XMLCore.java
19   */
20  public class XMLCore {
21      
22      private static XMLCore inst;
23      
24      public static XMLCore getDefault() {
25          if (inst == null) {
26              inst= new XMLCore();
27          }
28              
29          return inst;
30      }
31      
32      private List   fModelChangeListeners= new ArrayList  ();
33      
34      private XMLCore() { }
35  
36      public void addDocumentModelListener(IDocumentModelListener listener) {
37          synchronized (fModelChangeListeners) {
38              fModelChangeListeners.add(listener);
39          }
40      }
41      
42      public void removeDocumentModelListener(IDocumentModelListener listener) {
43          synchronized (fModelChangeListeners) {
44              fModelChangeListeners.remove(listener);
45          }
46      }
47      
48      public void notifyDocumentModelListeners(DocumentModelChangeEvent event) {
49          Iterator   i;
50          synchronized (fModelChangeListeners) {
51              i= new ArrayList  (fModelChangeListeners).iterator();
52          }
53          while (i.hasNext()) {
54              ((IDocumentModelListener)i.next()).documentModelChanged(event);
55          }
56      }
57  }
58
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