CWA 14923-5:2004

J/eXtensions for Financial Sevices (J/XFS) for the Java Platform - Part 5: Cash Dispenser, Recycler and ATM Device Class Interface - Programmer's Reference CWA 14923-5:2004

Scope

This document describes the Cash Dispenser, Recycler and ATM device classes based on the
basic architecture of J/XFS which is similar to the JavaPOS architecture. It is event driven and
asynchronous.
Three basic levels are defined in JavaPOS. For J/XFS this model is extended by a
communication layer, which provides device communication that allows distribution of
applications and devices within a network. So we have the following layers in J/XFS :
• Application
• Device Control and Manager
• Device Communication
• Device Service
Application developers program against control objects and the Device Manager which reside
in the Device Control Layer. This is the usual interface between applications and J/XFS
Devices. Device Control Objects access the Device Manager to find an associated Device
Service. Device Service Objects provide the functionality to access the real device (i.e. like a
device driver).
During application startup the Device Manager is responsible for locating the desired Device
Service Object and attaching this to the requesting Device Control Object. Location and/or
routing information for the Device Manager reside in a central repository.
To support Cash Dispenser, Recycler and ATM’s the basic Device Control structure is
extended with various properties and methods specific to this device which are described on
the following pages.