OW_TempFileEnumerationImplBase.hpp

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#ifndef OW_TEMP_FILE_ENUMERATION_IMPL_BASE_HPP_INCLUDE_GUARD_
#define OW_TEMP_FILE_ENUMERATION_IMPL_BASE_HPP_INCLUDE_GUARD_
#include "OW_config.h"
#include "OW_IntrusiveCountableBase.hpp"
#include "OW_TempFileStream.hpp"

// The classes and functions defined in this file are not meant for general
// use, they are internal implementation details.  They may change at any time.

namespace OW_NAMESPACE
{

class OW_COMMON_API TempFileEnumerationImplBase : public IntrusiveCountableBase
{

public:
   TempFileEnumerationImplBase();
   TempFileEnumerationImplBase(String const& filename);
   virtual ~TempFileEnumerationImplBase();
   bool hasMoreElements() const;
   size_t numberOfElements() const;
   void clear();
   String releaseFile();
   bool usingTempFile() const;
private:
   // Prevent copying or assignment
   TempFileEnumerationImplBase( const TempFileEnumerationImplBase& );
   TempFileEnumerationImplBase& operator=( const TempFileEnumerationImplBase& );
   size_t readSize(String const& filename);

protected:
   void throwIfEmpty() const;

protected:
   size_t m_size;
   TempFileStream m_Data;
};

} // end namespace OW_NAMESPACE

#endif

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