BUSBOY::RandomAccessFile Class Reference

File that allows arbitrary movement of the file pointer. More...

#include <RandomAccessFile.h>

Inheritance diagram for BUSBOY::RandomAccessFile:

Public Member Functions
virtual size_t	read (char *buf, size_t num)=0
	Read up to the next num bytes into buf, returns the number of bytes read. More...
virtual size_t	getLocation ()=0
	Returns the absolute location of the file pointer, in bytes. More...
virtual void	setLocation (size_t loc)=0
	Set absolute location from file start. More...
virtual void	setLocationFromEnd (size_t loc)=0
	Set location in bytes back from end of file. More...
virtual void	skipForward (size_t num)=0
	Skip num bytes forward from current location. More...
virtual void	skipBackward (size_t num)=0
	Skip num bytes backward from current location. More...
virtual size_t	getFileSize ()=0
virtual void	close ()=0
virtual bool	isClosed () const =0

Detailed Description

File that allows arbitrary movement of the file pointer.

Implementations will most likely be local disk files

Member Function Documentation

virtual void BUSBOY::RandomAccessFile::close ( )

pure virtual

Implemented in BUSBOY::ExternalRandomAccessFile.

virtual size_t BUSBOY::RandomAccessFile::getFileSize ( )

pure virtual

Implemented in BUSBOY::ExternalRandomAccessFile.

virtual size_t BUSBOY::RandomAccessFile::getLocation ( )

pure virtual

Returns the absolute location of the file pointer, in bytes.

Implemented in BUSBOY::ExternalRandomAccessFile.

virtual bool BUSBOY::RandomAccessFile::isClosed ( ) const

pure virtual

Implemented in BUSBOY::ExternalRandomAccessFile.

virtual size_t BUSBOY::RandomAccessFile::read ( char *  buf, size_t  num  )

pure virtual

Read up to the next num bytes into buf, returns the number of bytes read.

Implemented in BUSBOY::ExternalRandomAccessFile.

virtual void BUSBOY::RandomAccessFile::setLocation ( size_t  loc )

pure virtual

Set absolute location from file start.

Implemented in BUSBOY::ExternalRandomAccessFile.

virtual void BUSBOY::RandomAccessFile::setLocationFromEnd ( size_t  loc )

pure virtual

Set location in bytes back from end of file.

Implemented in BUSBOY::ExternalRandomAccessFile.

virtual void BUSBOY::RandomAccessFile::skipBackward ( size_t  num )

pure virtual

Skip num bytes backward from current location.

Implemented in BUSBOY::ExternalRandomAccessFile.

virtual void BUSBOY::RandomAccessFile::skipForward ( size_t  num )

pure virtual

Skip num bytes forward from current location.

Implemented in BUSBOY::ExternalRandomAccessFile.

---

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

• src/cpp/api/dataset/RandomAccessFile.h