OrQueryExp


1   /*
2    * @(#)OrQueryExp.java  4.17 03/12/19
3    * 
4    * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
5    * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
6    */
7   
8   package javax.management;
9   
10  
11  
12  /**
13   * This class is used by the query-building mechanism to represent
14   * disjunctions of relational expressions.
15   * @serial include
16   *
17   * @since 1.5
18   */
19  class OrQueryExp extends QueryEval   implements QueryExp   {
20  
21      /* Serial version */
22      private static final long serialVersionUID = 2962973084421716523L;
23  
24      /** 
25       * @serial The left query expression
26       */
27      private QueryExp   exp1;
28  
29      /** 
30       * @serial The right query expression
31       */
32      private QueryExp   exp2;
33  
34      
35      /**
36       * Basic Constructor.
37       */    
38      public OrQueryExp() {
39      }
40      
41      /**
42       * Creates a new OrQueryExp with the specified ValueExps 
43       */
44      public OrQueryExp(QueryExp   q1, QueryExp   q2) {
45      exp1 = q1;
46      exp2 = q2;
47      }
48  
49  
50      /**
51       * Returns the left query expression.
52       */    
53      public QueryExp   getLeftExp() {
54      return exp1;
55      }
56  
57      /**
58       * Returns the right query expression.
59       */    
60      public QueryExp   getRightExp() {
61      return exp2;
62      }
63        
64      /**
65       * Applies the OrQueryExp on a MBean.
66       *
67       * @param name The name of the MBean on which the OrQueryExp will be applied.
68       *
69       * @return  True if the query was successfully applied to the MBean, false otherwise.
70       *
71       *
72       * @exception BadStringOperationException The string passed to the method is invalid. 
73       * @exception BadBinaryOpValueExpException The expression passed to the method is invalid.
74       * @exception BadAttributeValueExpException The attribute value passed to the method is invalid.
75       */    
76      public boolean apply(ObjectName   name) throws BadStringOperationException  ,
77      BadBinaryOpValueExpException  , BadAttributeValueExpException  , 
78      InvalidApplicationException   {
79      return exp1.apply(name) || exp2.apply(name);
80      }
81      
82      /**
83       * Returns a string representation of this AndQueryExp
84       */    
85      public String   toString() {
86      return "(" + exp1 + ") or (" + exp2 + ")";
87      }
88  }
89
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