Introduction to Process Language › Process Modules › Executing Process Modules

Executing Process Modules

Process modules are executed before or after a dialog's map is displayed on the terminal screen (online applications) or are used to transfer input or output data (CA ADS Batch):

• A premap process module, which is executed before a map is used to transfer data between variable storage and an online terminal (CA ADS) or files (CA ADS Batch).

  A dialog can have a maximum of one premap process.

• A response process module, which is performed after a map is displayed, based on the user's selection of a response.

  A dialog can have any number of response processes.

CA ADS Premap and Response Processes

The following diagram shows the execution sequence of CA ADS premap and response process modules.

A premap process is executed before the dialog's map is displayed to the end user. A response process, based on the user's selection, is executed.

CA ADS Batch Premap and Response Processes

The following diagram shows the execution sequence of CA ADS Batch premap and response process modules. A premap process is executed at the beginning of the dialog unless the dialog's entry point is its mapin operation. The process executes until it issues a READ/WRITE TRANSACTION command. The response process executes after the mapin operation and continues until it issues a READ/WRITE TRANSACTION command.