OW_WQLImpl.hpp

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00001 /*******************************************************************************
00002 * Copyright (C) 2001-2004 Vintela, Inc. All rights reserved.
00003 *
00004 * Redistribution and use in source and binary forms, with or without
00005 * modification, are permitted provided that the following conditions are met:
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00007 *  - Redistributions of source code must retain the above copyright notice,
00008 *    this list of conditions and the following disclaimer.
00009 *
00010 *  - Redistributions in binary form must reproduce the above copyright notice,
00011 *    this list of conditions and the following disclaimer in the documentation
00012 *    and/or other materials provided with the distribution.
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00014 *  - Neither the name of Vintela, Inc. nor the names of its
00015 *    contributors may be used to endorse or promote products derived from this
00016 *    software without specific prior written permission.
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00018 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
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00030 
00035 #ifndef OW_WQLIMPL_HPP_
00036 #define OW_WQLIMPL_HPP_
00037 #include "OW_config.h"
00038 #include "OW_WQLIFC.hpp"
00039 #include "OW_Mutex.hpp"
00040 #include <cstdio>
00041 
00042 // The classes and functions defined in this file are not meant for general
00043 // use, they are internal implementation details.  They may change at any time.
00044 
00045 namespace OW_NAMESPACE
00046 {
00047 
00048 class stmt;
00049 class OW_WQL_API WQLImpl : public WQLIFC
00050 {
00051 public:
00052    virtual ~WQLImpl();
00053    
00054    String getName() const;
00055    virtual void init(const ServiceEnvironmentIFCRef& env);
00056    virtual void shutdown();
00057 
00058    virtual void evaluate(const String& nameSpace,
00059       CIMInstanceResultHandlerIFC& result,
00060       const String& query, const String& queryLanguage,
00061       const CIMOMHandleIFCRef& hdl);
00062    virtual WQLSelectStatement createSelectStatement(const String& query);
00063    virtual bool supportsQueryLanguage(const String& lang);
00064 
00065    static stmt* setStatement(stmt* statement)
00066    {
00067       s_statement = statement;
00068       return statement;
00069    }
00070 
00071    static const char* getParserInput()
00072    {
00073       return s_parserInput;
00074    }
00075 private:
00076    static Mutex s_classLock;
00077    static const char* s_parserInput;
00078    static stmt* s_statement;
00079 };
00080       
00081 } // end namespace OW_NAMESPACE
00082 
00083 extern int owwqldebug;
00084 extern "C" int owwqlparse();
00085 extern FILE* owwqlin;
00086 extern void WQLscanner_init();
00087 
00088 
00089 #endif

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