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: * The Original Software is NetBeans. The Initial Developer of the Original
27: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
28: * Microsystems, Inc. All Rights Reserved.
29: *
30: * If you wish your version of this file to be governed by only the CDDL
31: * or only the GPL Version 2, indicate your decision by adding
32: * "[Contributor] elects to include this software in this distribution
33: * under the [CDDL or GPL Version 2] license." If you do not indicate a
34: * single choice of license, a recipient has the option to distribute
35: * your version of this file under either the CDDL, the GPL Version 2 or
36: * to extend the choice of license to its licensees as provided above.
37: * However, if you add GPL Version 2 code and therefore, elected the GPL
38: * Version 2 license, then the option applies only if the new code is
39: * made subject to such option by the copyright holder.
40: */
41:
42: package threaddemo.util;
43:
44: /**
45: * Exception thrown when changes to an original model are about to
46: * be clobbered by modifications to a derived model, in lieu of
47: * clobbering them.
48: * @author Jesse Glick
49: * @see TwoWaySupport
50: */
51: public final class ClobberException extends RuntimeException {
52:
53: private final TwoWaySupport s;
54:
55: private final Object oldValue, derivedDelta;
56:
57: ClobberException(TwoWaySupport s, Object oldValue,
58: Object derivedDelta) {
59: assert s != null;
60: this .s = s;
61: this .oldValue = oldValue;
62: assert derivedDelta != null;
63: this .derivedDelta = derivedDelta;
64: }
65:
66: /**
67: * Get the associated two-way support.
68: * @return the support
69: */
70: public TwoWaySupport getTwoWaySupport() {
71: return s;
72: }
73:
74: /**
75: * Get the old value of the derived model before the attempted clobber.
76: * @return the old value, or null if it was never calculated
77: */
78: public Object getOldValue() {
79: return oldValue;
80: }
81:
82: /**
83: * Get the attempted change to the derived model.
84: * @return the derived delta
85: */
86: public Object getDerivedDelta() {
87: return derivedDelta;
88: }
89:
90: }
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