DFHDBAT executable module

Entry points

AENTRY

Called by

DFHERM, IMS database resource adapter (DRA).

Description

This program provides a mapping between the external architectures of CICS (the resource manager interface (RMI)) and of DBCTL (the database resource adapter (DRA)). Both are independently defined and different. DFHDBAT is part of the support for the CICS-DBCTL interface and runs in an application program environment.

DFHDBAT is invoked by a DFHRMCAL request through the CICS RMI. The RMI supplies DFHDBAT with a parameter list from which DFHDBAT constructs the DRA INIT, DRA TERM, and DRA THREAD parameter lists. It must also transform the DRA parameter list back, after a DL/I call, to the format expected by CICS. Thus, DFHDBAT is also referred to as the CICS-DBCTL adapter-transformer.

DFHDBAT is defined as a threadsafe program.