DDS for display files


INDARA (Indicator Area) keyword for display files

Use this file-level keyword to remove option and response indicators from the buffer (also called the record area) and place them in a 99-byte separate indicator area.

This keyword has no parameters.

Specifying INDARA provides the following advantages:

If you specify INDARA, you can add, change, or delete option and response indicators in the DDS and re-create the file without re-creating the high-level language program. This is true because the field locations in the buffer have not changed and therefore the level check data has not changed. However, if the program is to take advantage of the new indicators, it would still need to be changed and re-created.

If you specify INDARA, some high-level languages may require that you specify in your program that a separate indicator area is to be used. See the appropriate high-level language manual.

If you specify INDARA, the LOGINP and LOGOUT keywords do not log response or option indicators when your program sends I/O operations. This is because response and option indicators do not appear in the input or output buffers.

Option indicators are not valid for this keyword.

Example:

The following example shows how to specify the INDARA keyword.

|...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
00010A                                      INDARA
00020A                                      CF01(01 'End program')
00030A          R PROMPT
00040A            ACTNBR        10   B  2  2
00050A  41                                  ERRMSG('Account number +
00060A                                      not found' 41)
     A

INDARA has been specified; option indicator 41 and response indicators 01 and 41 are removed from the buffer for record format PROMPT and placed in the separate indicator area. Only ACTNBR, a named output/input field, remains in the buffer for record format PROMPT.


[ Top of Page | Previous Page | Next Page | Table of Contents | Index ]