Broker help/TOC

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Title RPC Broker Developer's Guide

RPC Broker V. 1.1 Developer's Guide

Overview

Introduction

The RPC Broker is a client/server system within VA's Veterans Health Information Systems and Technology Architecture (VISTA) environment. It enables client applications to communicate and exchange data with M Servers.

This manual describes the development features of the RPC Broker. The emphasis is on using the RPC Broker in conjunction with Borland's Delphi software. However, the RPC Broker supports other development environments.

This manual provides a complete reference for development with the RPC Broker. For an overview of development with the RPC Broker component, see the "RPC Broker V. 1.1 Getting Started with the Broker Development Kit" manual.

This document is intended for the VISTA development community and Information Resource Management (IRM) staff. A wider audience of technical personnel engaged in operating and maintaining the Department of Veterans Affairs (VA) software might also find it useful as a reference.

Broker Overview

For the latest RPC Broker product information, please refer to the RPC Broker Home Page on the web at: http://vista.med.va.gov/broker/index.html.

About this Version of the RPC Broker This version of the Broker provides programmers with the capability to develop new VISTA client/server software using the Broker Delphi component (i.e., TRPCBroker) in the 32-bit environment.

Orientation

• • Patches **

This version of the RPC Broker includes the following patches (listed in sequence order):

	Seq #	Patch	Subject	Release Date
1	XWB*1.1*1	Some Small Fixes	02/18/98
2	XWB*1.1*2	Encryption, Data Collection, Agent	07/27/98
3	XWB*1.1*3	Security Log Problem (XWBSEC Routine)	01/06/99
4	XWB*1.1*5	RUM Support	03/31/99
5	XWB*1.1*7	Broker Listener/Available Slots	06/04/99
6	XWB*1.1*4	Updated BDK and Kernel Login Fixes	06/24/99
7	XWB*1.1*6	Eliminate Orphaned Server Jobs	09/09/99
8	XWB*1.1*8	GUI Multi-Division Support	12/10/99
9	XWB*1.1*9	Caché License Fix	01/24/00
10	XWB*1.1*11	Delphi V. 5 Support	01/24/00
11	XWB*1.1*15	Broker Command Error Fix	04/12/00
12	XWB*1.1*10	RPC Availability	08/04/00
13	XWB*1.1*12	Server to Server RPC's	08/04/00
14	XWB*1.1*18	XWB2HL7 Routine Fix	10/17/00
15	XWB*1.1*14	Release Source Code for BDK	10/17/00
16	XWB*1.1*20	RDV Proper Setup of DUZ	05/10/01
17	XWB*1.1*22	Name and Null Subscript Error	10/03/01
18	XWB*1.1*24	Correct Problem with Reading Registry	11/09/01
		(Updated BDK, Delphi 4 and 5 versions only)
19	XWB*1.1*16	Read/Write Errors	02/06/02
20	XWB*1.1*27	Remote Data Request Processing	03/15/02
21	XWB*1.1*13	Silent Logon, Bug Fixes, & Delphi V. 6	(Current)
			Support (Updated BDK)

To develop VISTA applications in a 32-bit environment you must have Delphi V. 2.0 or greater. This version of the TRPCBroker component does not allow you to develop applications in Delphi V. 1.0. However, the Broker routines on the M server will continue to support VISTA applications previously developed in the 16-bit environment.

The default installation of the Broker creates a separate Broker Development Kit (BDK) directory (i.e., BDK32) that contains the required Broker files for development.

The Office of Information (OI) will support the Broker Development Kit running in the currently offered version of Delphi and the immediately previous version of Delphi. This level of support became effective 6/12/2000.

Sites may continue to use outdated versions of the RPC Broker Development Kit but do so with the understanding that support will not be available and that continued use of outdated versions will not afford features that may be essential to effective client/server operations in the VISTA environment. An archive of old (no longer supported) Broker Development Kits will be maintained at: http://vista.med.va.gov/broker/archives/index.html