1 chuck 1.1.2.7 //%2003////////////////////////////////////////////////////////////////////////
2 //
3 // Copyright (c) 2000, 2001, 2002 BMC Software, Hewlett-Packard Development
4 // Company, L. P., IBM Corp., The Open Group, Tivoli Systems.
5 // Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L. P.;
6 // IBM Corp.; EMC Corporation, The Open Group.
7 //
8 // Permission is hereby granted, free of charge, to any person obtaining a copy
9 // of this software and associated documentation files (the "Software"), to
10 // deal in the Software without restriction, including without limitation the
11 // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
12 // sell copies of the Software, and to permit persons to whom the Software is
13 // furnished to do so, subject to the following conditions:
14 //
15 // THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN
16 // ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED
17 // "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
18 // LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
19 // PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
20 // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
21 // ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
22 chuck 1.1.2.7 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23 //
24 //==============================================================================
25 //
26 // Authors: David Rosckes (rosckes@us.ibm.com)
27 // Bert Rivero (hurivero@us.ibm.com)
28 // Chuck Carmack (carmack@us.ibm.com)
29 // Brian Lucier (lucier@us.ibm.com)
30 //
31 // Modified By:
32 //
33 //%/////////////////////////////////////////////////////////////////////////////
34
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35 humberto 1.1.2.1 #ifndef Pegasus_CQLPredicateRep_h
36 #define Pegasus_CQLPredicateRep_h
37
38 #include <Pegasus/Common/Config.h>
39 #include <Pegasus/CQL/CQLSimplePredicate.h>
40 #include <Pegasus/CQL/CQLScope.h>
41 #include <Pegasus/CQL/Linkage.h>
42
43
44 PEGASUS_NAMESPACE_BEGIN
45
46 class PEGASUS_CQL_LINKAGE QueryContext;
47 class PEGASUS_CQL_LINKAGE CQLFactory;
48
49 /**
50 This object is populated by Bison.
51
52 Valid operations for each type of CQLValue are in accordance with the DMTF
53 CQL Specification.
54
55 The CQLPredicate is considered "terminal" if it does not contain any
56 humberto 1.1.2.1 CQLPredicate objects.
57 A 'terminal' predicate can be evaluated to TRUE/FALSE by examining the
58 CQLExpressions and operator.
59 Valid operators are:
60 <, >, =, <=, >=, <>, IS NULL, IS NOT NULL, ISA, LIKE
61
62 CQLExpressions:
63 For an expression, CQLExpression::getValue is called and will return a
64 CQLValue.
65 The appropriate operator is then invoked on CQLValue and that operator
66 function will
67 enforce the type restrictions as documented in the DMTF CQL
68 Specification.
69 That operator then determines whether the predicate is TRUE / FALSE.
70
71
72 CQLPredicates:
73 The CQLPredicate is non-terminal if it contains only CQLPredicate
74 objects.
75 A non-terminal CQLPredicate is evaluated by in turn evaluating the
76 contained CQLPredicates and
77 humberto 1.1.2.1 boolean operator.
78 Valid operators are:
79 AND, OR
80
81 For the evaluate method on each CQLPredicate. the CQLPredicate is evaluated
82 to TRUE/FALSE and
83 the result of the evaluation is then applied to the appropriate boolean
84 operator.
85
86 The result of the evaluation is and then inverted if the _invert member
87 variable is set to TRUE
88 and then returned to the caller.
89
90 */
91 class PEGASUS_CQL_LINKAGE CQLPredicateRep
92 {
93 public:
94 CQLPredicateRep(){}
95
96 CQLPredicateRep(const CQLSimplePredicate & inSimplePredicate, Boolean inVerted = false);
97
98 humberto 1.1.2.1 CQLPredicateRep(const CQLPredicate & inPredicate, Boolean inVerted = false);
99
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101 humberto 1.1.2.1
102 ~CQLPredicateRep(){}
103 /**
104 CQLExpressions:
105 For an expression, CQLExpression::getValue is called and will return a
106 CQLValue.
107 The appropriate operator is then invoked on CQLValue and that operator
108 function will
109 enforce the type restrictions as documented in the DMTF CQL
110 Specification.
111 That operator then determines whether the predicate is TRUE / FALSE.
112
113
114 CQLPredicates:
115 The CQLPredicate is non-terminal if it contains only CQLPredicate
116 objects.
117 A non-terminal CQLPredicate is evaluated by in turn evaluating the
118 contained CQLPredicates and
119 boolean operator.
120 Valid operators are:
121 AND, OR
122 humberto 1.1.2.1
123 For the evaluate method on each CQLPredicate. the CQLPredicate is
124 evaluated to TRUE/FALSE and
125 the result of the evaluation is then applied to the appropriate boolean
126 operator.
127
128 The result of the evaluation is and then inverted if the _invert member
129 variable is set to TRUE
130 and then returned to the caller.
131
132 */
133 Boolean evaluate(CIMInstance CI, QueryContext& QueryCtx);
134
135 Boolean isTerminal();
136
137 Boolean getInverted();
138
139 void setInverted();
140
141 /** Appends a predicate to the predicate array. This method should only
142 be called by Bison.
143 humberto 1.1.2.1 */
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