ci-server-engineer/.claude/skills/class-object-engineering/tasks/load-class-object.md

task	version	source	status
Create a trigger group, class and object with quick load files	R1.03	IM 36K10G10-01EN §5.1–5.3; IM 36K10J10-01EN §5.6; practiced with CI-Eng-Sample 2026-09-30	verified

Trigger group, class and object via quick load

Load in this order (each with dssqld -i <file>.qli -l <file>.qlo, check Errors = 0); remove in reverse (object, class, trigger group) with NAME-only files and dssqld -r.

1. Trigger group (TRIGGER_DF, name max 16 characters):

@FIELDS
NAME,DESCRIPTION,TRIGGER_INTERVAL

@TRIGGER_DF
"CIENG_1S","CI-Eng-Sample one second trigger","1 seconds"

2. Class (CLASS_DF, name max 16 characters). The source goes in the METHOD memo field, between @" and "@ on their own lines; COMPILE 1 compiles it on load; TRIGGER_1 attaches a trigger group:

@FIELDS
NAME,DESCRIPTION,PF_LANGUAGE,TRIGGER_1,COMPILE,LISTING_WANTED,METHOD

@CLASS_DF
"CIENG_INCR","Count CI-Eng-Sample.DEMO.COUNTER 1..100","Traditional","CIENG_1S",1,1,\
@"
CLASS CIENG_INCR;
  PROLOG
    SIGNAL INPUT := "CI-Eng-Sample.DEMO.COUNTER";
  BODY
    METHOD UP_AND_DOWN;
      BODY
        IF (INPUT >= 100) THEN
          INPUT := 0;
        ENDIF;
        INPUT := INPUT + 1;
    ENDMETHOD UP_AND_DOWN;
ENDCLASS CIENG_INCR;
"@

The item a SIGNAL names must exist first (or be created by the class with FROM … MAKE).

3. Object (OBJECT_DF): full name in its section, and the class:

@FIELDS
NAME,DESCRIPTION,CLASS

@OBJECT_DF
"CI-Eng-Sample.DEMO.INCR1","Counts DEMO.COUNTER every second","CIENG_INCR"

Check

Run itmval -g -n CI-Eng-Sample.DEMO.COUNTER a few seconds apart: the value rises by one per second. To inspect a class, export it with a filter file (@SELECT, then 'NAME = "<class>"', then @CLASS_DF).

Example files: examples/CI-Eng-Sample/05_trigger_df.qli, 06_class_df.qli, 07_object_df.qli, 86_ to 88_remove_*.qli.