Inheritance diagram for BUSBOY::ExternalDatasetContext:

Public Member Functions
	ExternalDatasetContext (bool output, const CExternalDatasetCallbacks &callbacks, ExternalDatasetSerializer *serializer)

DataFile *	findDataFile (const DataKey &key) const
	Tries to find a file corresponding to the given key. More...

bool	isOutput () const
	default is false More...

bool	isQueryOnly () const
	Indicates that no file keys are pushed into the dataset Default is false. More...

void	addDataFile (const DataKey &key, DataFile *file)
	Create a new output file for writing. More...

std::string	getDataFileName (const DataKey &key) const
	Tries to get the name of the data file. More...

RandomAccessFile *	readFileAsRandomAccess (const DataKey &key) const
	Access input file as a read-only random access file Default is to throw exception. More...

WritableRandomAccessFile *	writeFileAsRandomAccess (const DataKey &key) const
	Access output file as a writable random access file Default is to throw exception. More...

	~ExternalDatasetContext ()

Public Member Functions inherited from BUSBOY::DatasetContext
	DatasetContext ()

Constructor & Destructor Documentation

BUSBOY::ExternalDatasetContext::ExternalDatasetContext	(	bool	output,
		const CExternalDatasetCallbacks &	callbacks,
		ExternalDatasetSerializer *	serializer
	)

BUSBOY::ExternalDatasetContext::~ExternalDatasetContext ( )

Member Function Documentation

void BUSBOY::ExternalDatasetContext::addDataFile	(	const DataKey &	key,
		DataFile *	file
	)

virtual

Create a new output file for writing.

Default is to throw exception

DataFile * BUSBOY::ExternalDatasetContext::findDataFile ( const DataKey & key ) const

virtual

Tries to find a file corresponding to the given key.

Default behavior is no file found.

std::string BUSBOY::ExternalDatasetContext::getDataFileName ( const DataKey & key ) const

virtual

Tries to get the name of the data file.

Default is name not available.

bool BUSBOY::ExternalDatasetContext::isOutput ( ) const

virtual

default is false

bool BUSBOY::ExternalDatasetContext::isQueryOnly ( ) const

virtual

Indicates that no file keys are pushed into the dataset Default is false.

RandomAccessFile * BUSBOY::ExternalDatasetContext::readFileAsRandomAccess ( const DataKey & key ) const

virtual

Access input file as a read-only random access file Default is to throw exception.

WritableRandomAccessFile * BUSBOY::ExternalDatasetContext::writeFileAsRandomAccess ( const DataKey & key ) const

virtual

Access output file as a writable random access file Default is to throw exception.

The documentation for this class was generated from the following files: