1 chuck 1.1.2.12 //%2003////////////////////////////////////////////////////////////////////////
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2 chuck 1.1.2.11 //
3 // Copyright (c) 2000, 2001, 2002 BMC Software, Hewlett-Packard Development
4 // Company, L. P., IBM Corp., The Open Group, Tivoli Systems.
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5 chuck 1.1.2.13 // Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L. P.;
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6 chuck 1.1.2.11 // 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 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23 //
24 //==============================================================================
25 //
26 // Authors: David Rosckes (rosckes@us.ibm.com)
27 chuck 1.1.2.11 // 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 1.1.2.7 #ifndef Pegasus_CQLExpression_h
36 #define Pegasus_CQLExpression_h
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37 humberto 1.1.2.1
38 #include <Pegasus/Common/Config.h>
39 #include <Pegasus/CQL/CQLValue.h>
40 #include <Pegasus/CQL/Linkage.h>
41 #include <Pegasus/CQL/CQLTerm.h>
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42 humberto 1.1.2.7
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43 humberto 1.1.2.17 #ifdef PEGASUS_USE_EXPERIMENTAL_INTERFACES
44
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45 humberto 1.1.2.1 PEGASUS_NAMESPACE_BEGIN
46
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47 humberto 1.1.2.5 class PEGASUS_CQL_LINKAGE CQLFactory;
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48 humberto 1.1.2.7 class PEGASUS_CQL_LINKAGE CQLExpressionRep;
49 class PEGASUS_CQL_LINKAGE QueryContext;
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50 humberto 1.1.2.1
51 /** The enum is private, but the definition is public.
52 */
53 enum TermOpType {plus,minus};
54
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55 david 1.1.2.4 #ifndef PEGASUS_ARRAY_T
56 #define PEGASUS_ARRAY_T TermOpType
57 #include <Pegasus/Common/ArrayInter.h>
58 #undef PEGASUS_ARRAY_T
59 #endif
60
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61 humberto 1.1.2.1 /**
62 The CQLExpression class encapsulates a generic CQL expression to make it
63 easier to break into components and process the expression.
64
65 A CQL expression is made up of terms and operators.
66 For example, 'A + B' is a CQLExpression, where 'A' and 'B' are terms, and
67 '+' is an operator.
68
69 There must be exactly one more term than there are operators.
70 */
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71 humberto 1.1.2.7
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72 humberto 1.1.2.1 class PEGASUS_CQL_LINKAGE CQLExpression
73 {
74 public:
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75 humberto 1.1.2.9 CQLExpression();
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76 humberto 1.1.2.1 /** constructor takes one CQLTerm object.
77 */
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78 humberto 1.1.2.15 CQLExpression(const CQLTerm& theTerm);
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79 david 1.1.2.2 CQLExpression(const CQLExpression& inExpress);
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80 humberto 1.1.2.1 /** the getValue method evaluates the expression and returns the value.
81 Any property that need to be resolved into a value is taken from the
82 CIMInstance.
83 */
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84 humberto 1.1.2.7 ~CQLExpression();
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85 humberto 1.1.2.1
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86 david 1.1.2.16 CQLValue resolveValue(const CIMInstance& CI, const QueryContext& QueryCtx);
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87 humberto 1.1.2.1
88 /** The appendOperation is used by Bison.
89 It is invoked 0 or more times for the CQLExpression, and
90 when invoked will always pass in an integer that is the Term operation
91 type and a CQLTerm object.
92 */
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93 humberto 1.1.2.15 void appendOperation(const TermOpType theTermOpType, const CQLTerm& theTerm);
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94 humberto 1.1.2.1
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95 humberto 1.1.2.15 String toString()const;
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96 chuck 1.1.2.10
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97 humberto 1.1.2.15 Boolean isSimple()const;
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98 chuck 1.1.2.10
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99 humberto 1.1.2.15 Boolean isSimpleValue()const;
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100 chuck 1.1.2.10
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101 humberto 1.1.2.15 Array<CQLTerm> getTerms()const;
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102 chuck 1.1.2.10
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103 humberto 1.1.2.15 Array<TermOpType> getOperators()const;
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104 chuck 1.1.2.10
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105 david 1.1.2.14 void applyContext(QueryContext& inContext,
106 CQLChainedIdentifier inCid = CQLChainedIdentifier());
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107 chuck 1.1.2.10
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108 humberto 1.1.2.9 CQLExpression& operator=(const CQLExpression& rhs);
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109 chuck 1.1.2.10
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110 humberto 1.1.2.15 Boolean operator==(const CQLExpression& expr)const;
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111 chuck 1.1.2.10
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112 humberto 1.1.2.15 Boolean operator!=(const CQLExpression& expr)const;
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113 chuck 1.1.2.10
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114 humberto 1.1.2.5 friend class CQLFactory;
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115 david 1.1.2.2
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116 humberto 1.1.2.1 private:
117
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118 humberto 1.1.2.7 CQLExpressionRep *_rep;
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119 humberto 1.1.2.1 };
120
121 #ifndef PEGASUS_ARRAY_T
122 #define PEGASUS_ARRAY_T CQLExpression
123 #include <Pegasus/Common/ArrayInter.h>
124 #undef PEGASUS_ARRAY_T
125 #endif
126
127 PEGASUS_NAMESPACE_END
128
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129 humberto 1.1.2.17 #endif
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130 humberto 1.1.2.7 #endif
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