CA ADS Batch Concepts › Batch Dialog Structure › Batch Control Events

Batch Control Events

Batch control events are conditions that arise during file input. Batch control events include:

• End of file──The most recent input file read operation resulted in an end-of-file condition.
• I/O error──The most recent input file read operation resulted in a physical error condition. Note that errors on output cause the runtime system to abend the application.

Associating Batch Control Events

Batch control events can be associated with dialog response processes and application responses. On a mapin operation, the occurrence of a batch control event causes execution of its associated response process or of the application function invoked by its associated application response. For more information about specifying selection criteria for responses and response processes, see Response Definition Screen and "Response Process Definition Screen" in Chapter 5.

Testing Batch Control Events

Batch control events can also be tested in premap or response processes, as in the following example:

IF $EOF
  LEAVE APPLICATION.

For more information about testing for batch control events, see Batch Control Event Status Conditions.