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