1 karl 1.8 //%2006////////////////////////////////////////////////////////////////////////
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2 chuck 1.2 //
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3 karl 1.5 // 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.;
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6 chuck 1.2 // IBM Corp.; EMC Corporation, The Open Group.
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7 karl 1.5 // Copyright (c) 2004 BMC Software; Hewlett-Packard Development Company, L.P.;
8 // IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group.
9 // Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.;
10 // EMC Corporation; VERITAS Software Corporation; The Open Group.
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11 karl 1.8 // Copyright (c) 2006 Hewlett-Packard Development Company, L.P.; IBM Corp.;
12 // EMC Corporation; Symantec Corporation; The Open Group.
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13 chuck 1.2 //
14 // Permission is hereby granted, free of charge, to any person obtaining a copy
15 // of this software and associated documentation files (the "Software"), to
16 // deal in the Software without restriction, including without limitation the
17 // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
18 // sell copies of the Software, and to permit persons to whom the Software is
19 // furnished to do so, subject to the following conditions:
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20 karl 1.8 //
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21 chuck 1.2 // THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN
22 // ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED
23 // "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
24 // LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
25 // PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
26 // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
27 // ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
29 //
30 //==============================================================================
31 //
32 //%/////////////////////////////////////////////////////////////////////////////
33
34 #ifndef Pegasus_CQLPredicateRep_h
35 #define Pegasus_CQLPredicateRep_h
36
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37 david.dillard 1.6 #include <Pegasus/CQL/Linkage.h>
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38 chuck 1.2 #include <Pegasus/CQL/CQLSimplePredicate.h>
39
40
41 PEGASUS_NAMESPACE_BEGIN
42
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43 mike 1.9 class QueryContext;
44 class CQLFactory;
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45 chuck 1.2
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46 david.dillard 1.6 /**
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47 chuck 1.2 This object is populated by Bison.
48
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49 karl 1.10 Valid operations for each type of CQLValue are in accordance with the
50 DMTF CQL Specification.
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51 david.dillard 1.6
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52 chuck 1.2 The CQLPredicate is considered "terminal" if it does not contain any
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53 karl 1.10 CQLPredicate objects.
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54 chuck 1.2 A 'terminal' predicate can be evaluated to TRUE/FALSE by examining the
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55 karl 1.10 CQLExpressions and operator.
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56 chuck 1.2 Valid operators are:
57 <, >, =, <=, >=, <>, IS NULL, IS NOT NULL, ISA, LIKE
58
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59 david.dillard 1.6 CQLExpressions:
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60 chuck 1.2 For an expression, CQLExpression::getValue is called and will return a
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61 karl 1.10 CQLValue.
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62 chuck 1.2 The appropriate operator is then invoked on CQLValue and that operator
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63 karl 1.10 function will
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64 chuck 1.2 enforce the type restrictions as documented in the DMTF CQL
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65 karl 1.10 Specification.
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66 chuck 1.2 That operator then determines whether the predicate is TRUE / FALSE.
67
68
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69 david.dillard 1.6 CQLPredicates:
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70 chuck 1.2 The CQLPredicate is non-terminal if it contains only CQLPredicate
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71 karl 1.10 objects.
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72 chuck 1.2 A non-terminal CQLPredicate is evaluated by in turn evaluating the
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73 karl 1.10 contained CQLPredicates and boolean operator.
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74 chuck 1.2 Valid operators are:
75 AND, OR
76
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77 karl 1.10 For the evaluate method on each CQLPredicate. the CQLPredicate is
78 evaluated to TRUE/FALSE and
79 the result of the evaluation is then applied to the appropriate
80 boolean operator.
81
82 The result of the evaluation is and then inverted if the _invert
83 member variable is set to TRUE and then returned to the caller.
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84 chuck 1.2
85 */
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86 mike 1.9 class CQLPredicateRep
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87 chuck 1.2 {
88 public:
89 CQLPredicateRep();
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90 david.dillard 1.6
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91 karl 1.10 CQLPredicateRep(const CQLSimplePredicate & inSimplePredicate,
92 Boolean inVerted = false);
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93 chuck 1.2
94 CQLPredicateRep(const CQLPredicate & inPredicate, Boolean inVerted = false);
95
96 CQLPredicateRep(const CQLPredicateRep* rep);
97
98 ~CQLPredicateRep(){}
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99 david.dillard 1.6 /**
100 CQLExpressions:
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101 karl 1.10 For an expression, CQLExpression::getValue is called and will return
102 a CQLValue.
103 The appropriate operator is then invoked on CQLValue and that
104 operator function will enforce the type restrictions as documented
105 in the DMTF CQL
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106 chuck 1.2 Specification.
107 That operator then determines whether the predicate is TRUE / FALSE.
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108 david.dillard 1.6
109
110 CQLPredicates:
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111 chuck 1.2 The CQLPredicate is non-terminal if it contains only CQLPredicate
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112 karl 1.10 objects.
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113 chuck 1.2 A non-terminal CQLPredicate is evaluated by in turn evaluating the
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114 karl 1.10 contained CQLPredicates and boolean operator.
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115 chuck 1.2 Valid operators are:
116 AND, OR
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117 david.dillard 1.6
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118 chuck 1.2 For the evaluate method on each CQLPredicate. the CQLPredicate is
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119 karl 1.10 evaluated to TRUE/FALSE and the result of the evaluation is then
120 applied to the appropriate boolean operator.
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121 david.dillard 1.6
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122 karl 1.10 The result of the evaluation is and then inverted if the _invert
123 member variable is set to TRUE and then returned to the caller.
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124 david.dillard 1.6
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125 chuck 1.2 */
126 Boolean evaluate(CIMInstance CI, QueryContext& QueryCtx);
127
128 Boolean getInverted()const;
129
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130 humberto 1.4 void setInverted(Boolean invert);
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131 chuck 1.2
132 /** Appends a predicate to the predicate array. This method should only
133 be called by Bison.
134 */
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135 humberto 1.3 void appendPredicate(const CQLPredicate& inPredicate);
136
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137 karl 1.10 void appendPredicate(const CQLPredicate& inPredicate,
138 BooleanOpType inBooleanOperator);
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139 chuck 1.2
140 Array<CQLPredicate> getPredicates()const;
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141 david.dillard 1.6
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142 chuck 1.2 CQLSimplePredicate getSimplePredicate()const;
143
144 Array<BooleanOpType> getOperators()const;
145
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146 vijay.eli 1.7 void applyContext(const QueryContext& queryContext);
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147 chuck 1.2
148 Boolean isSimple()const;
149
150 Boolean isSimpleValue()const;
151 String toString()const;
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152 humberto 1.3
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153 chuck 1.2 friend class CQLFactory;
154 private:
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155 david.dillard 1.6
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156 chuck 1.2 Array<CQLPredicate> _predicates;
157 CQLSimplePredicate _simplePredicate;
158 Array<BooleanOpType> _operators;
159
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160 humberto 1.3 Boolean _invert;
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161 chuck 1.2
162 };
163
164 PEGASUS_NAMESPACE_END
165
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166 david.dillard 1.6 #endif
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