CWA 14923-9:2004

J/eXtensions for Financial Sevices (J/XFS) for the Java Platform - Part 9: Depository Device Class Interface - Programmer's Reference

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Valid from 02.03.2016
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CWA 14923-9:2004
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This document describes the depository device class 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 depository devices the basic Device Control structure is extended with various properties and methods specific to this device which are described on the following pages.
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