1 /*
2 * Copyright 1999-2003 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Sun designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Sun in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22 * CA 95054 USA or visit www.sun.com if you need additional information or
23 * have any questions.
24 */
25
26 package javax.management;
27
28
29 /**
30 * This class is used by the query-building mechanism to represent negations
31 * of relational expressions.
32 * @serial include
33 *
34 * @since 1.5
35 */
36 class NotQueryExp extends QueryEval implements QueryExp {
37
38
39 /* Serial version */
40 private static final long serialVersionUID = 5269643775896723397L;
41
42 /**
43 * @serial The negated {@link QueryExp}
44 */
45 private QueryExp exp;
46
47
48 /**
49 * Basic Constructor.
50 */
51 public NotQueryExp() {
52 }
53
54 /**
55 * Creates a new NotQueryExp for negating the specified QueryExp.
56 */
57 public NotQueryExp(QueryExp q) {
58 exp = q;
59 }
60
61
62 /**
63 * Returns the negated query expression of the query.
64 */
65 public QueryExp getNegatedExp() {
66 return exp;
67 }
68
69 /**
70 * Applies the NotQueryExp on a MBean.
71 *
72 * @param name The name of the MBean on which the NotQueryExp will be applied.
73 *
74 * @return True if the query was successfully applied to the MBean, false otherwise.
75 *
76 * @exception BadStringOperationException
77 * @exception BadBinaryOpValueExpException
78 * @exception BadAttributeValueExpException
79 * @exception InvalidApplicationException
80 */
81 public boolean apply(ObjectName name) throws BadStringOperationException, BadBinaryOpValueExpException,
82 BadAttributeValueExpException, InvalidApplicationException {
83 return exp.apply(name) == false;
84 }
85
86 /**
87 * Returns the string representing the object.
88 */
89 @Override
90 public String toString() {
91 return "not (" + exp + ")";
92 }
93
94 String toQueryString() {
95 return "not (" + Query.toString(exp) + ")";
96 }
97
98 }
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