1 chuck 1.2 //%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 1.2 // 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           
 35           #ifndef Pegasus_CQLExpressionRep_h
 36           #define Pegasus_CQLExpressionRep_h
 37           
 38           #include <Pegasus/Common/Config.h>
 39           #include <Pegasus/CQL/CQLValue.h>
 40           #include <Pegasus/CQL/Linkage.h>
 41           #include <Pegasus/CQL/CQLTerm.h>
 42           
 43 chuck 1.2 PEGASUS_NAMESPACE_BEGIN
 44           
 45           class PEGASUS_CQL_LINKAGE CQLFactory;
 46           class PEGASUS_QUERYCOMMON_LINKAGE QueryContext;
 47           
 48           class PEGASUS_CQL_LINKAGE CQLExpressionRep
 49           {
 50             public:
 51             CQLExpressionRep(){}
 52           
 53             CQLExpressionRep(const CQLTerm& theTerm);
 54             CQLExpressionRep(const CQLExpressionRep* rep);
 55           
 56             ~CQLExpressionRep();
 57             
 58             CQLValue resolveValue(const CIMInstance& CI, const QueryContext& QueryCtx);
 59             
 60             void appendOperation(const TermOpType theTermOpType, const CQLTerm& theTerm);
 61             
 62             String toString()const;
 63             
 64 chuck 1.2   Boolean isSimple()const;
 65             
 66             Boolean isSimpleValue()const;
 67             
 68             Array<CQLTerm> getTerms()const;
 69             
 70             Array<TermOpType> getOperators()const;
 71             
 72             void applyContext(QueryContext& inContext,
 73           		    CQLChainedIdentifier& inCid);
 74             
 75             Boolean operator==(const CQLExpressionRep& rep)const;
 76             
 77             Boolean operator!=(const CQLExpressionRep& rep)const;
 78             
 79             friend class CQLFactory;
 80             
 81            private:
 82             
 83             /**  The _TermOperators member variable is an 
 84                  array of operators that are valid to operate on Terms in a CQL
 85 chuck 1.2        expression. 

 86 chuck 1.3        Valid operators include concatentation, add and subtract.

 87 chuck 1.2        
 88                  The array is ordered according to the operation from left to right.
 89             */
 90             Array<TermOpType> _TermOperators;
 91             
 92             /**  The _CQLTerms member variable is an 
 93                  array of operands that are valid in a CQL expression. 
 94                  
 95                  The array is ordered according to the operation from left to right.
 96             */
 97             Array<CQLTerm> _CQLTerms;
 98             
 99             Boolean _isSimple;
100           };
101           
102           PEGASUS_NAMESPACE_END
103           
104           
105           #endif /* CQLEXPRESSION_H_HEADER_INCLUDED_BEE5929F */