1 /*
2 * Copyright 1999-2005 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 /**
31 * Represents strings that are arguments to relational constraints.
32 * A <CODE>StringValueExp</CODE> may be used anywhere a <CODE>ValueExp</CODE> is required.
33 *
34 * @since 1.5
35 */
36 public class StringValueExp implements ValueExp {
37
38 /* Serial version */
39 private static final long serialVersionUID = -3256390509806284044L;
40
41 /**
42 * @serial The string literal
43 */
44 private String val;
45
46 /**
47 * Basic constructor.
48 */
49 public StringValueExp() {
50 }
51
52 /**
53 * Creates a new <CODE>StringValueExp</CODE> representing the
54 * given string.
55 *
56 * @param val the string that will be the value of this expression
57 */
58 public StringValueExp(String val) {
59 this.val = val;
60 }
61
62 /**
63 * Returns the string represented by the
64 * <CODE>StringValueExp</CODE> instance.
65 *
66 * @return the string.
67 */
68 public String getValue() {
69 return val;
70 }
71
72 /**
73 * Returns the string representing the object.
74 */
75 public String toString() {
76 return "'" + val.replace("'", "''") + "'";
77 }
78
79
80 /**
81 * Sets the MBean server on which the query is to be performed.
82 *
83 * @param s The MBean server on which the query is to be performed.
84 */
85 /* There is no need for this method, because if a query is being
86 evaluated a StringValueExp can only appear inside a QueryExp,
87 and that QueryExp will itself have done setMBeanServer. */
88 public void setMBeanServer(MBeanServer s) { }
89
90 /**
91 * Applies the ValueExp on a MBean.
92 *
93 * @param name The name of the MBean on which the ValueExp will be applied.
94 *
95 * @return The <CODE>ValueExp</CODE>.
96 *
97 * @exception BadStringOperationException
98 * @exception BadBinaryOpValueExpException
99 * @exception BadAttributeValueExpException
100 * @exception InvalidApplicationException
101 */
102 public ValueExp apply(ObjectName name) throws BadStringOperationException, BadBinaryOpValueExpException,
103 BadAttributeValueExpException, InvalidApplicationException {
104 return this;
105 }
106 }
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