01: /*
02: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
03: *
04: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
05: *
06: * The contents of this file are subject to the terms of either the GNU
07: * General Public License Version 2 only ("GPL") or the Common
08: * Development and Distribution License("CDDL") (collectively, the
09: * "License"). You may not use this file except in compliance with the
10: * License. You can obtain a copy of the License at
11: * http://www.netbeans.org/cddl-gplv2.html
12: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
13: * specific language governing permissions and limitations under the
14: * License. When distributing the software, include this License Header
15: * Notice in each file and include the License file at
16: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
17: * particular file as subject to the "Classpath" exception as provided
18: * by Sun in the GPL Version 2 section of the License file that
19: * accompanied this code. If applicable, add the following below the
20: * License Header, with the fields enclosed by brackets [] replaced by
21: * your own identifying information:
22: * "Portions Copyrighted [year] [name of copyright owner]"
23: *
24: * Contributor(s):
25: *
26: * Portions Copyrighted 2007 Sun Microsystems, Inc.
27: */
28: package org.netbeans.modules.editor.bracesmatching;
29:
30: import javax.swing.text.Document;
31: import org.netbeans.spi.editor.bracesmatching.MatcherContext;
32:
33: /**
34: *
35: * @author Vita Stejskal
36: */
37: public abstract class SpiAccessor {
38:
39: private static SpiAccessor ACCESSOR = null;
40:
41: public static synchronized void register(SpiAccessor accessor) {
42: assert ACCESSOR == null : "Can't register two SPI package accessors!"; //NOI18N
43: ACCESSOR = accessor;
44: }
45:
46: public static synchronized SpiAccessor get() {
47: try {
48: Class clazz = Class.forName(MatcherContext.class.getName());
49: } catch (ClassNotFoundException e) {
50: // ignore
51: }
52:
53: assert ACCESSOR != null : "There is no SPI package accessor available!"; //NOI18N
54: return ACCESSOR;
55: }
56:
57: protected SpiAccessor() {
58: }
59:
60: public abstract MatcherContext createCaretContext(
61: Document document, int offset, boolean backward,
62: int lookahead);
63: }
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