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version 1.1, 2004/09/07 18:26:54
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version 1.1.2.2, 2004/09/17 14:52:11
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#ifndef Pegasus_CQLTermRep_h |
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#define Pegasus_CQLTermRep_h |
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#include <Pegasus/Common/Config.h> |
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#include <Pegasus/CQL/CQLValue.h> |
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#include <Pegasus/CQL/Linkage.h> |
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#include <Pegasus/CQL/CQLFactor.h> |
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PEGASUS_NAMESPACE_BEGIN |
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class PEGASUS_CQL_LINKAGE CQLFactory; |
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class PEGASUS_CQL_LINKAGE QueryContext; |
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/** The CQLTerm class encapsulates each CQL term in a CQL expression. |
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This class contains an array of CQLFactor objects and an array of CQLOperator |
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objects. |
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*/ |
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// |
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/** |
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The CQLTerm class encapsulates a generic CQL term to make it |
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easier to break into pieces (factors) and process the term. |
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A CQL term is made up of factors and operators. |
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For example, 'A * B' is a CQLTerm, where 'A' and 'B' are factors, and '*' |
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is an operator on a factor. |
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There must be exactly one more factor than there are operators. |
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*/ |
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class PEGASUS_CQL_LINKAGE CQLTermRep |
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{ |
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public: |
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CQLTermRep(); |
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/** constructor takes one CQLFactor object. |
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*/ |
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CQLTermRep(CQLFactor theFactor); |
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CQLTermRep(const CQLTermRep& rep); |
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~CQLTermRep(); |
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/** the getValue method evaluates the CQL term and returns the value. |
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Any property that need to be resolved into a value is taken from the |
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CIMInstance. |
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*/ |
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CQLValue resolveValue(CIMInstance CI, QueryContext& QueryCtx); |
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/** The appendOperation is used by Bison. |
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It is invoked 0 or more times for the CQLTerm, and |
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when invoked will always pass in an integer that is the Factor operation |
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type and a CQLFactor object. |
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*/ |
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void appendOperation(FactorOpType inFactorOpType, CQLFactor inFactor); |
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String toString(); |
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Boolean isSimple(); |
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Boolean isSimpleValue(); |
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Array<CQLFactor> getFactors(); |
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Array<FactorOpType> getOperators(); |
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void applyScopes(Array<CQLScope> inScope); |
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friend class CQLFactory; |
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private: |
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Array<FactorOpType> _FactorOperators; |
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Array<CQLFactor> _Factors; |
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}; |
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PEGASUS_NAMESPACE_END |
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#endif |
Return to
CQLTermRep.h
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