opencard.core.terminal
Class CardTerminalIOBlender

java.lang.Object
  opencard.core.terminal.CardTerminalIOBlender

public abstract class CardTerminalIOBlender
extends java.lang.Object

A CardTerminalIOBlender processes (blends) user input for a CardTerminal. You can set a CardTerminalIOBlender through the CardTerminalIOControl parameter of CardTerminal.keyboardInput().

Version:

$Id: CardTerminalIOBlender.java,v 1.2 1999/11/03 12:37:16 damke Exp $

Author:

Dirk Huseman (hud@zurich.ibm.com)

See Also:

CardTerminalIOControl, CardTerminal

Field Summary

protected CardTerminalIOControl

ioControl A reference to our containing CardTerminalIOControl object.

Constructor Summary

CardTerminalIOBlender(CardTerminalIOControl ioControl)
The constructor.

Method Summary

abstract int	input(int character) Process a single character of user input.
abstract java.lang.String	result() Return the end product.

Methods inherited from class java.lang.Object

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

Field Detail

ioControl

protected CardTerminalIOControl ioControl

A reference to our containing CardTerminalIOControl object.

Constructor Detail

CardTerminalIOBlender

public CardTerminalIOBlender(CardTerminalIOControl ioControl)

The constructor.

Parameters:

ioControl - Control structure to be used by this I/O blender.

Method Detail

input

public abstract int input(int character)

Process a single character of user input.

Parameters:

character - The input character from the card reader.

Returns:

-1 if the end of input has been reached; 0 else.

result

public abstract java.lang.String result()

Return the end product.

Returns:

The resulting string.