HP NonStop transaction services/MP programming in the OSS environment

Course overview

This course provides application developers and system designers with the knowledge to program under the Pathway/Open System Services (OSS) environment. Topics include coding client/server programs, accessing Pathway applications, Enscribe and NonStop SQL/MP and NonStop SQL/MX databases, JDBC, available development tools, and debugging. The 5-day course is 50 percent lecture and 50 percent hands-on labs using HP servers.

Prerequisites

• Open System Services (OSS) for Guardian Developers (U4159S)
• Open System Services (OSS) on NonStop Servers for UNIX Application Developers (U4187S)
• Open System Services (OSS) Application Development and Porting on NonStop Servers (U5518S)
• Working knowledge of C and/or Java

Audience

• System designers
• Application developers
• Support personnel
• Developers who will be creating applications for, or porting applications to, a HP NonStop server

Ways to save

Course Objective

At the conclusion of this course you should be able to:

• Understand the components of a Pathway environment
• Configure, start, stop, and monitor the components of a Pathway system
• Generate Online Transaction Processing (OLTP) applications using Pathway requester-server concepts
• Code C and Java requesters using the Pathsend API
• Apply NonStop Transaction Management Facility (TMF) software to the OLTP application environment
• Code server programs using $RECEIVE message processing
• Debug requester and server programs using the Inspect and Visual Inspect tools
• Use development tools available in the OSS

Next steps

• Consider attending the other advanced learning courses in the HP NonStop Application Development curriculum

Benefits to you

• Become familiar with the Pathway environment and its components
• Gain skills needed in order to optimize HP NonStop Pathway applications so IT can effectively extend their business solutions
• Gain valuable hands-on experience using several OSS TS/MP development, compilation, and debugging tools
• Learn how to develop a Pathway application, saving time and increasing productivity

Course outline

Module 1 Introduction to Pathway

• Online Transaction Processing (OLTP) applications
• Requester-server approach
• Pathway and its role in OLTP
• Components of a Pathway system
• Starting and stopping a Pathway system
• Client/server options available in the Pathway environment
• What is Pathway/XM
• Lab: introduction to Pathway

• The OSS development environment
• Execution modes available
• Language compilers available
• Utilities such as make, nld, noft, pax, and tar
• Overview of debuggers
• Lab: OSS development tools

• The requester-server model
• The basic function of a server
• Use of $RECEIVE
• Basic structure of a server program
• Why servers should be context-free
• Concurrency issues and design considerations
• Application and system message handling
• Pathway API for Java
• Lab: server fundamentals

• Use of Inspect
• Debugging stand-alone programs
• Debugging a Pathway server
• Use of Visual Inspect
• Lab: debugging C programs with Inspect and Visual Inspect

• Compiler settings
• jdb commands
• HP NonStop extensions
• Lab: Java debugging

• Enscribe file types
• Procedures to create, access, and manage Enscribe files
• Error handling
• Enscribe API for Java
• Lab: Enscribe database access

• Use of host variables
• Embedded SQL statements
• Use of cursors
• Error handling
• Compilation for SQL/MP
• Compilation for SQL/MX
• Lab: NonStop SQL database access

• What is JDBC?
• JDBC API capabilities
• Loading a driver
• JDBC DriverManager
• Preparing statements and query execution
• Lab: use of JDBC

• Capabilities of a Pathsend requester
• Use of Pathsend APIs
• NOWAIT operations
• Error handling
• Design considerations
• Lab: C Pathsend requester

• TS/MP server class
• Data conversions for request/reply messages
• Sending a request
• Reading a reply
• Lab: JPathsend requester

• TMF overview
• TMF procedures
• JDBC transactions
• Pathway server pool configuration
• Application design considerations
• Lab: data integrity with TMF

• Meaning of “context sensitive”
• Context-free vs. context-sensitive servers
• Functional activity of a context-sensitive server
• Relevant Pathsend APIs for dialogs
• Dialog detection, receipt, servicing, and replying to messages
• Dialog control and TMF considerations
• Handling dialog termination
• Lab: context-sensitive servers

• Configuring global and object-specific parameters SIP server restrictions
• Cold start and cool start a Pathway system
• Start the Pathway objects individually
• Monitor and maintain a Pathway system
• Shut down a Pathway system
• Lab: Pathway configuration and operation

Onsite Delivery Equipment Requirements

Host requirement:

• HP NonStop server, using NonStop operating system release G06.20+
• Access to an HP NonStop server with NonStop Server for Java, NonStop SQL/MP and NonStop SQL/MX software components installed
• NonStop TS/MP software
• Printer for listings
• Host components for Visual Inspect
• User IDs with access to: both Guardian and OSS environments c89, make, nld, noft, pathcom

Desktop:

• One workstation or PC with network access per student
• At least 256MB of RAM
• Desktop software including:
  • Terminal emulator (e.g., OutsideView)
  • FTP client that works with OSS
  • A text editor
  • HP Visual Inspect client