AndQueryExp


1   /*
2    * @(#)AndQueryExp.java 4.19 04/02/10
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   * This class is used by the query building mechanism to represent conjunctions
13   * of relational expressions.
14   * @serial include
15   *
16   * @since 1.5
17   */
18  class AndQueryExp extends QueryEval   implements QueryExp   { 
19     
20      /* Serial version */
21      private static final long serialVersionUID = -1081892073854801359L;
22  
23      /** 
24       * @serial The first QueryExp of the conjunction 
25       */
26      private QueryExp   exp1;
27  
28      /** 
29       * @serial The second QueryExp of the conjunction 
30       */
31      private QueryExp   exp2;
32  
33  
34      /**
35       * Default constructor.
36       */
37      public AndQueryExp() { 
38      } 
39  
40      /**
41       * Creates a new AndQueryExp with q1 and q2 QueryExp.
42       */
43      public AndQueryExp(QueryExp   q1, QueryExp   q2) {
44      exp1 = q1;
45      exp2 = q2; 
46      } 
47  
48  
49      /**
50       * Returns the left query expression.
51       */
52      public QueryExp   getLeftExp()  { 
53      return exp1;
54      } 
55  
56      /**
57       * Returns the right query expression.
58       */
59      public QueryExp   getRightExp()  { 
60      return exp2;
61      } 
62  
63      /**
64       * Applies the AndQueryExp on a MBean.
65       *
66       * @param name The name of the MBean on which the AndQueryExp will be applied.
67       *
68       * @return  True if the query was successfully applied to the MBean, false otherwise.
69       *
70       *
71       * @exception BadStringOperationException The string passed to the method is invalid. 
72       * @exception BadBinaryOpValueExpException The expression passed to the method is invalid.
73       * @exception BadAttributeValueExpException The attribute value passed to the method is invalid.
74       * @exception InvalidApplicationException  An attempt has been made to apply a subquery expression to a 
75       * managed object or a qualified attribute expression to a managed object of the wrong class.
76       */
77      public boolean apply(ObjectName   name) throws BadStringOperationException  , BadBinaryOpValueExpException  ,
78      BadAttributeValueExpException  , 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 + ") and (" + exp2 + ")";
87     }
88     
89   }
90  
91
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