OW_WQLIFC.hpp

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00030 
00035 #ifndef OW_WQLIFC_HPP_
00036 #define OW_WQLIFC_HPP_
00037 #include "OW_config.h"
00038 #include "OW_CIMFwd.hpp"
00039 #include "OW_SharedLibraryReference.hpp"
00040 #include "OW_CIMOMHandleIFC.hpp"
00041 #include "OW_IntrusiveReference.hpp"
00042 #include "OW_ServiceIFC.hpp"
00043 
00044 // The classes and functions defined in this file are not meant for general
00045 // use, they are internal implementation details.  They may change at any time.
00046 
00047 namespace OW_NAMESPACE
00048 {
00049 
00050 // this class is part of the wqlcommon library, which is not in libopenwbem
00051 class WQLSelectStatement;
00052 // TODO: FIX THIS! This class in libopenwbem cannot depend on anything outside of libopenwbem.
00053 // Either move this class out of libopenwbem or else move WQLSelectStatement into libopenwbem
00054 class OW_COMMON_API WQLIFC : public ServiceIFC
00055 {
00056 public:
00057    virtual ~WQLIFC();
00058    virtual void evaluate(const String& nameSpace,
00059       CIMInstanceResultHandlerIFC& result,
00060       const String& query, const String& queryLanguage,
00061             const CIMOMHandleIFCRef& hdl) = 0;
00062    virtual WQLSelectStatement createSelectStatement(const String& query) = 0;
00063    virtual bool supportsQueryLanguage(const String& lang) = 0;
00064 };
00065 
00066 #if !defined(OW_STATIC_SERVICES)
00067 #define OW_WQLFACTORY(derived,wqlname) \
00068 extern "C" OW_EXPORT const char* \
00069 getOWVersion() \
00070 { \
00071    return OW_VERSION; \
00072 } \
00073 extern "C" OW_EXPORT OW_NAMESPACE::WQLIFC* \
00074 createWQL() \
00075 { \
00076    return new derived; \
00077 }
00078 #else
00079 #define OW_WQLFACTORY(derived,wqlname) \
00080 extern "C" OW_NAMESPACE::WQLIFC* \
00081 createWQL_##wqlname() \
00082 { \
00083    return new derived; \
00084 }
00085 #endif /* !defined(OW_STATIC_SERVICES) */
00086 
00087 } // end namespace OW_NAMESPACE
00088 
00089 #endif

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