opencard.opt.iso.fs
Class CardRandomAccess

java.lang.Object
  opencard.opt.iso.fs.CardRandomAccess

Direct Known Subclasses:

CardRandomByteAccess, CardRandomRecordAccess

public abstract class CardRandomAccess
extends java.lang.Object

Superclass for both CardRandomAccess classes.

Version:

$Id: CardRandomAccess.java,v 1.2 1999/11/03 12:37:18 damke Exp $

Author:

Peter Trommler (trp@zurich.ibm.com)

See Also:

CardRandomRecordAccess, CardRandomByteAccess

Field Summary

protected CardFile	file
protected int	filePointer
protected FileAccessCardService	fileSystem
protected boolean	open
protected boolean	writeAccess

Constructor Summary

CardRandomAccess(CardFile scFile, java.lang.String accessMode)
Instantiate a CardRandomAccess object.

Method Summary

void	close() Close the file.
protected void	finalize() Free up all resources at garbage collection time.
void	open() (Re-)open the file.

Methods inherited from class java.lang.Object

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

Field Detail

file

protected CardFile file

fileSystem

protected FileAccessCardService fileSystem

filePointer

protected int filePointer

writeAccess

protected boolean writeAccess

open

protected boolean open

Constructor Detail

CardRandomAccess

public CardRandomAccess(CardFile scFile,
                        java.lang.String accessMode)
                 throws CardTerminalException,
                        java.io.IOException

Instantiate a CardRandomAccess object.

Parameters:

scFile - The CardFile object that represents the file on the smart card.

accessMode - Specifies whether the card is accessed for read "r" or read and write "rw".

Throws:

CardTerminalException - Thrown when the smart card has been removed.

java.io.IOException

Method Detail

close

public void close()
           throws java.io.IOException,
                  CardTerminalException

Close the file.

Throws:

java.io.IOException - Thrown if an I/O error has occurred.

CardTerminalException - Thrown when the smart card has been removed.

open

public void open()
          throws java.io.IOException,
                 CardTerminalException

(Re-)open the file.

Throws:

java.io.IOException - Thrown if an I/O error has occured.

CardTerminalException - Thrown when the smart card has been removed.

finalize

protected void finalize()
                 throws java.io.IOException

Free up all resources at garbage collection time.

Overrides:

finalize in class java.lang.Object

Throws:

java.io.IOException - An I/O error occurred.