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_CQLFunction_h
 36           #define Pegasus_CQLFunction_h
 37           
 38           #include <Pegasus/Common/Config.h>
 39           #include <Pegasus/CQL/CQLValue.h>
 40           #include <Pegasus/CQL/Linkage.h>
 41           //#include <Pegasus/CQL/CQLExpression.h>
 42           #include <Pegasus/CQL/CQLPredicate.h>
 43 chuck 1.2 
 44           #ifdef PEGASUS_USE_EXPERIMENTAL_INTERFACES
 45           
 46           PEGASUS_NAMESPACE_BEGIN
 47           
 48           class PEGASUS_CQL_LINKAGE CQLFactory;
 49           class PEGASUS_CQL_LINKAGE CQLFunctionRep;
 50           //class PEGASUS_CQL_LINKAGE CQLPredicate;
 51           
 52            /** The Enum is private, the definition is public.
 53                 */
 54           enum  FunctionOpType
 55           {

 56 lucier 1.3   UNKNOWN,

 57 chuck  1.2   DATETIMETOMICROSECOND,
 58              STRINGTOUINT,
 59              STRINGTOSINT,
 60              STRINGTOREAL,
 61              STRINGTONUMERIC,
 62              UPPERCASE,
 63              NUMERICTOSTRING,
 64              REFERENCETOSTRING,
 65              CLASSNAME,
 66              NAMESPACENAME,
 67              NAMESPACETYPE,
 68              HOSTPORT,
 69              MODELPATH,
 70              CLASSPATH,
 71              OBJECTPATH,
 72              INSTANCETOREFERENCE,
 73              CURRENTDATETIME,
 74              DATETIME,
 75              MICROSECONDTOTIMESTAMP,
 76              MICROSECONDTOINTERVAL
 77            };
 78 chuck  1.2 /**
 79               CQLFunction objects are populated by the
 80               Bison code.
 81            
 82               Supported functions are in accordance with the
 83               DMTF CQL Specification.
 84               TODO:  THIS LIST IS SUBJECT TO CHANGE
 85             
 86                classname( <expr> )
 87                classname( )
 88                count(*)
 89                count( distinct * )
 90                count( distinct <expr> )
 91                something for createarray
 92                something for datetime
 93                something for hostname
 94                max( <expr> )
 95                mean( <expr> )
 96                median( <expr> )
 97                min( <expr> )
 98                something for modelpath
 99 chuck  1.2     something for namespacename
100                something for namespacepath
101                something for objectpath
102                something for scheme
103                sum( <expr> )
104                something for userinfo
105                uppercase( <expr> )
106            
107              */
108            
109            
110            class PEGASUS_CQL_LINKAGE CQLFunction
111            {
112              public:
113               
114                CQLFunction();
115                
116                CQLFunction(const CQLFunction& inFunc);
117            
118            //    CQLFunction(FunctionOpType inFunctionOpType, Array<CQLExpression> inParms);
119                
120 chuck  1.2     CQLFunction(CQLIdentifier inOpType, Array<CQLPredicate> inParms);
121            
122                ~CQLFunction();
123                /** 
124                   The getValue method validates the parms versus FunctionOpType.
125                           (A) resolves prarameter  types
126                           (B) number of parms
127                    and then actually executes the function.
128                    Returns a CQLValue object that has already been resolved.
129                  */
130                CQLValue resolveValue(const CIMInstance& CI, const QueryContext& queryCtx);
131                
132               Array<CQLPredicate> getParms()const;
133               
134               FunctionOpType getFunctionType()const;
135            
136               String toString()const;
137            
138               void applyContext(QueryContext& inContext);
139            
140               CQLFunction& operator=(const CQLFunction& rhs);
141 chuck  1.2    

142 humberto 1.4 
143              //   Boolean operator==(const CQLFunction& func)const;

144 chuck    1.2    

145 humberto 1.4   // Boolean operator!=(const CQLFunction& func)const;

146 chuck    1.2    
147                 friend class CQLFactory;
148              
149                private:
150              
151                CQLFunctionRep *_rep;
152              
153              };
154              
155              PEGASUS_NAMESPACE_END
156              #endif
157              #endif