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               

 35 humberto 1.1.2.1 #ifndef Pegasus_CQLSimplePredicateRep_h 
 36                  #define Pegasus_CQLSimplePredicateRep_h
 37                  
 38                  #include <Pegasus/Common/Config.h>
 39                  #include <Pegasus/CQL/Linkage.h>
 40                  #include <Pegasus/CQL/CQLExpression.h>
 41                  
 42                  //#include <Pegasus/Common/CIMInstance.h>
 43                  //#include <Pegasus/CQL/QueryContext.h>
 44                  
 45                  PEGASUS_NAMESPACE_BEGIN
 46                  
 47                  class PEGASUS_CQL_LINKAGE CQLExpression;
 48                  class PEGASUS_CQL_LINKAGE CQLFactory;
 49                  class PEGASUS_CQL_LINKAGE QueryContext;
 50                  
 51                  class CQLSimplePredicateRep
 52                  {
 53                    public:

 54 humberto 1.1.2.5     CQLSimplePredicateRep();

 55 humberto 1.1.2.1 
 56                      CQLSimplePredicateRep(const CQLExpression& inExpression);
 57                  
 58                      CQLSimplePredicateRep(const CQLExpression& inExpression, ExpressionOpType inOperator);
 59                  

 60 chuck    1.1.2.6     CQLSimplePredicateRep(const CQLExpression& leftSideExpression,
 61                  			  const CQLExpression& rightSideExpression,
 62                  			  ExpressionOpType inOperator);
 63                  

 64 humberto 1.1.2.4     CQLSimplePredicateRep(const CQLSimplePredicateRep* rep);

 65 chuck    1.1.2.6 

 66 humberto 1.1.2.1     ~CQLSimplePredicateRep(){}
 67                  
 68                      /**  
 69                        CQLExpressions: 
 70                            For an expression, CQLExpression::getValue is called and will return a
 71                      CQLValue.
 72                            The appropriate operator is then invoked on CQLValue and that operator
 73                      function will
 74                            enforce the type restrictions as documented in the DMTF CQL
 75                      Specification.
 76                            That operator then determines whether the predicate is TRUE / FALSE.
 77                      
 78                      
 79                         CQLPredicates: 
 80                            The CQLPredicate is non-terminal if it contains only CQLPredicate
 81                      objects.
 82                            A non-terminal CQLPredicate is evaluated by in turn evaluating the
 83                      contained CQLPredicates and
 84                            boolean operator.
 85                           Valid operators are:
 86                                    AND, OR
 87 humberto 1.1.2.1     
 88                           For the evaluate method on each CQLPredicate. the CQLPredicate is
 89                      evaluated to TRUE/FALSE and 
 90                           the result of the evaluation is then applied to the appropriate boolean
 91                      operator. 
 92                      
 93                          The result of the evaluation is and then inverted if the _invert member
 94                      variable is set to TRUE
 95                          and then returned to the caller.
 96                      
 97                        */
 98                      Boolean evaluate(CIMInstance CI, QueryContext& QueryCtx);
 99                  

100 humberto 1.1.2.8     CQLExpression getLeftExpression()const;

101 humberto 1.1.2.1 

102 humberto 1.1.2.8     CQLExpression getRightExpression()const;

103 humberto 1.1.2.1 

104 humberto 1.1.2.8     enum ExpressionOpType getOperation()const;

105 humberto 1.1.2.1 

106 chuck    1.1.2.6     void applyContext(QueryContext& queryContext);
107                  

108 humberto 1.1.2.8     String toString()const;

109 chuck    1.1.2.6 

110 humberto 1.1.2.8     Boolean isSimple()const;

111 chuck    1.1.2.6 

112 humberto 1.1.2.8     Boolean isSimpleValue()const;

113 humberto 1.1.2.2 

114 humberto 1.1.2.9     void setOperation(ExpressionOpType op);
115                  

116 humberto 1.1.2.1     friend class CQLFactory;
117                    private:
118                      CQLExpression _leftSide;
119                  
120                      CQLExpression _rightSide;
121                  
122                      ExpressionOpType _operator;

123 humberto 1.1.2.5     Boolean _isSimple;

124 humberto 1.1.2.1 };
125                  PEGASUS_NAMESPACE_END
126                  
127                  #endif