Oracle Application Server 10.1.3.4, User Manual

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Introduction 1-1
1
Introduction
Oracle Application Server Adapter for IMS/DB (OracleAS Adapter for IMS/DB)
provides connectivity and runs interactions on an Information Management System -
Data Base (IMS/DB) system. This section provides an overview of the features and
architecture of OracleAS Adapter for IMS/DB.
This section contains the following topics:
■
OracleAS Adapter for IMS/DB Overview
■
OracleAS Adapter for IMS/DB Architecture
OracleAS Adapter for IMS/DB Overview
IMS/DB (Information Management System - Data Base) is a high-performance
hierarchical database. The data access API to IMS/DB is called DL/I, which is a
function by which the IMS/DB database can be traversed and operated on. Working
with DL/I requires the caller to run under the control of IMS/DB. APIs are also
available to enable access to IMS/DB from CICS and IMS/TM transactions.
OracleAS Adapter for IMS/DB includes the following feature:
■
Captures and maintains a metadata schema for IMS/DB by importing various IMS
definition files such as a PSB file, DBD files, and COBOL copybooks. These are
transformed into mapping definition for Oracle Connect for IMS/DB on the z/OS
computer.
■
Uses an enterprise application integration (EAI) model. Users of a requesting
application can model the interactions that they want implemented, specifying
what each interaction does, when it occurs, and the inputs and outputs expected
for each interaction. Moreover, the OracleAS Adapter for IMS/DB maps data
structures, facilitating access to IMS/DB data from within Oracle Application
Server.
■
Implements interactions as parameterized SQL with the parameters forming the
input record, and with the output (in cases where there is an output) aggregated
into an XML document forming the output record.
■
Includes the options to access IMS/DB data managed by CICS, IMS/TM, or
directly.
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Does support global transactions under CICS and can fully participate in a
distributed transaction.