Implementing External Action Blocks › Design › Create the Calling Procedure Step or Action Block › Creating External Action Logic

Creating External Action Logic

There are three ways to create logic for an EAB:

• Add a call to an existing subroutine
• Write code for a new subroutine, and add a call to that subroutine in the EAB
• Add logic directly into a stub generated through CA Gen

When you use the stub generated through CA Gen, much of the work is already done in a format that is acceptable to the CA Gen software.

EAB code can be written in any language that follows LE linkage conventions. Specific requirements exist, however, for the action block name and the order of parameters passed to and from the load module generated through CA Gen.

For COBOL, the PROGRAM-ID field must be the same as the packaging name given to the EAB.