Mapout and Mapin Operations

Overview of Activities

The following activities occur on mapout and mapin:

On mapout, data from program storage is transmitted to the terminal if DATA is Y (YES) for mapout:
- Literal and variable fields are both transmitted:
  - The CA ADS runtime system transmits both literal and variable fields when NEWPAGE is specified in the ADSO sysgen statement for CA ADS dialogs.
  - An application program transmits both literal and variable fields when NEWPAGE is specified in the statement that issues the mapout.
- Literal fields only are transmitted by an application program if LITERALS is specified in the DML statement that issues the mapout.
- Variable fields only are transmitted as follows:
  - The ADS runtime system transmits only variable fields when a dialog's map is already displayed as the result of a previous mapout.
  - An application program transmits only variable fields if neither NEWPAGE nor LITERALS is specified in the statement that issues the mapout.
- Neither literals nor variables are transmitted on mapout if there is a field found to be in error.
On mapin, data which has been modified or for which the MDT has been set is transmitted to program variable storage if DATA is Y (YES) for mapin and the field is not found to be in error.

Note: For information about mapout and mapin of pageable maps, see the chapter "Creating Pageable Maps".