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 binary
31 * relations.
32 * @serial include
33 *
34 * @since 1.5
35 */
36 class BetweenQueryExp extends QueryEval implements QueryExp {
37
38 /* Serial version */
39 private static final long serialVersionUID = -2933597532866307444L;
40
41 /**
42 * @serial The checked value
43 */
44 private ValueExp exp1;
45
46 /**
47 * @serial The lower bound value
48 */
49 private ValueExp exp2;
50
51 /**
52 * @serial The upper bound value
53 */
54 private ValueExp exp3;
55
56
57 /**
58 * Basic Constructor.
59 */
60 public BetweenQueryExp() {
61 }
62
63 /**
64 * Creates a new BetweenQueryExp with v1 checked value, v2 lower bound
65 * and v3 upper bound values.
66 */
67 public BetweenQueryExp(ValueExp v1, ValueExp v2, ValueExp v3) {
68 exp1 = v1;
69 exp2 = v2;
70 exp3 = v3;
71 }
72
73
74 /**
75 * Returns the checked value of the query.
76 */
77 public ValueExp getCheckedValue() {
78 return exp1;
79 }
80
81 /**
82 * Returns the lower bound value of the query.
83 */
84 public ValueExp getLowerBound() {
85 return exp2;
86 }
87
88 /**
89 * Returns the upper bound value of the query.
90 */
91 public ValueExp getUpperBound() {
92 return exp3;
93 }
94
95 /**
96 * Applies the BetweenQueryExp on an MBean.
97 *
98 * @param name The name of the MBean on which the BetweenQueryExp will be applied.
99 *
100 * @return True if the query was successfully applied to the MBean, false otherwise.
101 *
102 * @exception BadStringOperationException
103 * @exception BadBinaryOpValueExpException
104 * @exception BadAttributeValueExpException
105 * @exception InvalidApplicationException
106 */
107 public boolean apply(ObjectName name) throws BadStringOperationException, BadBinaryOpValueExpException,
108 BadAttributeValueExpException, InvalidApplicationException {
109 ValueExp val1 = exp1.apply(name);
110 ValueExp val2 = exp2.apply(name);
111 ValueExp val3 = exp3.apply(name);
112 boolean numeric = val1 instanceof NumericValueExp;
113
114 if (numeric) {
115 if (((NumericValueExp)val1).isLong()) {
116 long lval1 = ((NumericValueExp)val1).longValue();
117 long lval2 = ((NumericValueExp)val2).longValue();
118 long lval3 = ((NumericValueExp)val3).longValue();
119 return lval2 <= lval1 && lval1 <= lval3;
120 } else {
121 double dval1 = ((NumericValueExp)val1).doubleValue();
122 double dval2 = ((NumericValueExp)val2).doubleValue();
123 double dval3 = ((NumericValueExp)val3).doubleValue();
124 return dval2 <= dval1 && dval1 <= dval3;
125 }
126
127 } else {
128 String sval1 = ((StringValueExp)val1).getValue();
129 String sval2 = ((StringValueExp)val2).getValue();
130 String sval3 = ((StringValueExp)val3).getValue();
131 return sval2.compareTo(sval1) <= 0 && sval1.compareTo(sval3) <= 0;
132 }
133 }
134
135 /**
136 * Returns the string representing the object.
137 */
138 @Override
139 public String toString() {
140 return "(" + exp1 + ") between (" + exp2 + ") and (" + exp3 + ")";
141 }
142
143 @Override
144 String toQueryString() {
145 return exp1 + " between " + exp2 + " and " + exp3;
146 }
147 }
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