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Java > Open Source Codes > com > caucho > jmx > query > InExp


1 /*
2  * Copyright (c) 1998-2003 Caucho Technology -- all rights reserved
3  *
4  * This file is part of Resin(R) Open Source
5  *
6  * Each copy or derived work must preserve the copyright notice and this
7  * notice unmodified.
8  *
9  * Resin Open Source is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * Resin Open Source is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17  * of NON-INFRINGEMENT. See the GNU General Public License for more
18  * details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with Resin Open Source; if not, write to the
22  * Free SoftwareFoundation, Inc.
23  * 59 Temple Place, Suite 330
24  * Boston, MA 02111-1307 USA
25  *
26  * @author Scott Ferguson
27  */
28
29 package com.caucho.jmx.query;
30
31 import javax.management.*;
32
33 /**
34  * Implementation of a less-than query
35  */
36 public class InExp extends AbstractExp implements QueryExp {
37   private ValueExp _test;
38   private ValueExp []_valueList;
39
40   /**
41    * Creates a new equal query.
42    */
43   public InExp(ValueExp test, ValueExp []valueList)
44   {
45     _test = test;
46     _valueList = valueList;
47   }
48
49   /**
50    * Evaluates the expression to a boolean.
51    *
52    * @param name the object to test.
53    *
54    * @return true if the query is a match.
55    */
56   public boolean apply(ObjectName name)
57     throws BadStringOperationException, BadBinaryOpValueExpException,
58        BadAttributeValueExpException, InvalidApplicationException
59   {
60     ValueExp test = _test.apply(name);
61
62     for (int i = 0; i < _valueList.length; i++) {
63       if (eq(test, _valueList[i].apply(name)))
64     return true;
65     }
66
67     return false;
68   }
69   
70   /**
71    * Returns the expression for the query.
72    */
73   public String toString()
74   {
75     return "in(" + _test + ", " + _valueList + ")";
76   }
77 }
78
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