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Java > Open Source Codes > org > netbeans > modules > xml > text > completion > ReloadActionPerformer


1 /*
2  * The contents of this file are subject to the terms of the Common Development
3  * and Distribution License (the License). You may not use this file except in
4  * compliance with the License.
5  *
6  * You can obtain a copy of the License at http://www.netbeans.org/cddl.html
7  * or http://www.netbeans.org/cddl.txt.
8  *
9  * When distributing Covered Code, include this CDDL Header Notice in each file
10  * and include the License file at http://www.netbeans.org/cddl.txt.
11  * If applicable, add the following below the CDDL Header, with the fields
12  * enclosed by brackets [] replaced by your own identifying information:
13  * "Portions Copyrighted [year] [name of copyright owner]"
14  *
15  * The Original Software is NetBeans. The Initial Developer of the Original
16  * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
17  * Microsystems, Inc. All Rights Reserved.
18  */
19
20 package org.netbeans.modules.xml.text.completion;
21
22 import javax.swing.text.Document JavaDoc;
23 import org.netbeans.modules.xml.core.actions.XMLUpdateDocumentAction;
24 import org.openide.cookies.EditorCookie;
25 import org.openide.nodes.Node;
26
27 /**
28  * Reset internal state after user have changed external one (entities).
29  * It resets grammar cache. It is registered at module layer and utilized
30  * by {@link XMLUpdateDocumentAction}.
31  *
32  * @author Petr Kuzel
33  */
34 public final class ReloadActionPerformer implements XMLUpdateDocumentAction.Performer {
35
36     public void perform(Node node) {
37         if (node == null) return;
38         EditorCookie editor = (EditorCookie) node.getCookie(EditorCookie.class);
39         if (editor == null) return;
40         Document JavaDoc doc = editor.getDocument();
41         if (doc == null) return;
42         GrammarManager cache = (GrammarManager)
43             doc.getProperty(XMLCompletionQuery.DOCUMENT_GRAMMAR_BINDING_PROP);
44         if (cache == null) return;
45         
46         cache.invalidateGrammar();
47     }
48 }
49
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