Pathmaker Reference Manual

Requester Definition Screen
Pathmaker Screens
067869 Tandem Computers Incorporated 1–97
Requester Definition
Screen
Use the Requester Definition screen to create, modify, delete, copy, or generate a
requester.
A requester is an application module that interacts with you. It is equivalent to a
SCREEN COBOL program unit. A requester:
Contains presentation logic for a single logical screen.
Manages terminal context associated with that screen.
Communicates with services.
Contains navigation logic.
Creating a requester essentially involves three phases:
1. Define the requester's name, title, type, and other general information, and assign
actions to its function keys.
You can write the requester help text as soon as you define the requester.
2. Use the Requester Context and the Screen Painter screens to build and modify the
requester's screen. Use the Record Instance Detail screen for database (DB)
requesters.
The order in which you do these steps might vary depending on the type of
requester you are building and whether you choose to complete the DDL
description of your database before or after the screen-building phase.
3. Complete the requester by:
Specifying incoming parameters on the Requester Definition screen.
Specifying outgoing parameters on the Function Key Assignment screen.
Generating the SCREEN COBOL code.
There are no prerequisites for adding a requester without a reference object. If you
want to add a reference object to the Single Reference Object field, however, you must
first specify it in DDL as either RECORD or DEF. If you are using NonStop SQL, you
must create the table using NonStop SQL DDL, then register the table on the SQL
Table Registration screen before you can enter the table's Pathmaker table object name
on this screen.