ru.biosoft.util
Class FileBuffer

java.lang.Object
  ru.biosoft.util.FileBuffer

Direct Known Subclasses:

ConservativeFastFileBuffer, FastFileBuffer, SoftFileBuffer

public abstract class FileBuffer

extends java.lang.Object

RandomAccessBuffer provides buffered reading/writing of random access file Class provides fast access for extracting of sequential data.

Constructor Summary

FileBuffer()

Method Summary

abstract void	close() Closes the buffer.
abstract byte	read(int pos) Reads one byte from requested position.
abstract void	write(int pos, byte bt) Writes one byte to the requested position in the buffer.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FileBuffer

public FileBuffer()

Method Detail

read

public abstract byte read(int pos)
                   throws java.io.IOException

Reads one byte from requested position.

Parameters:

pos - position of requested byte

Returns:

requested byte

Throws:

java.io.IOException - If any I/O errors

write

public abstract void write(int pos,
                           byte bt)
                    throws java.io.IOException

Writes one byte to the requested position in the buffer.

Parameters:

pos - position of requested byte

bt - stored byte

Throws:

java.io.IOException - If any I/O errors

close

public abstract void close()
                    throws java.io.IOException

Closes the buffer.

Throws:

java.io.IOException - if an I/O error occurs.