[SOLVED] Using item label in Timer routine

Setup, Configuration and Use Scripts & Rules
1

Under some special conditions, the rule cannot set the item label and the error "threw an unhandled Exception:
java.lang.IllegalArgumentException: Couldn’t invoke ‘assignValueTo’ " is thrown.

The special conditions are:
I have a Time routine:
var Timer timer1 = createTimer™ [| …
and in the timer routine all mebers of a group are iterated:
SW.members.forEach[actItem |

Actions on a member:

  • read out the label works ok: string=actItem.label
  • writing to it gives error: actItem.label=“xxx” (simple string)
  • But I may write to the label at this code position if the item is specified by its name: SW01.label=“xxx”
  • I may also write to label, if the iterating code is placed outside a timer routine

Had anyone same strange effects using 2.5.0 M5?

2

If you posted the rule code, we could have a look…

1 Like
3

I could reduce the problem to follwoing code:

homeControl.items:

Group gHealth_SW
Switch Health_SW01 “Health SW01 [MAP(switch.map):%s]” (gHealth_SW)
Switch Health_SW02 “Health SW02 [MAP(switch.map):%s]” (gHealth_SW)
Switch Health_SW04 “Health SW04 [MAP(switch.map):%s]” (gHealth_SW)
Switch Health_SW09 “Health SW09 [MAP(switch.map):%s]” (gHealth_SW)

rule:
   gHealth_SW.members.forEach[actSW |
        	logInfo("check_Status_SW","SW  - " + actSW.name + " / " + actSW.label)   //ok
        	actSW.label="xxx"   //error
    ]
4

To set the label of an Item, you need to use the setLabel method…

actSW.setLabel("xxx")
5

May we see the logInfo output? May we see the whole error message in that context?

This reminds me of something; if I recall right, something to with trying to carry out methods on a list entry object - you need to cast as GenericItem or something like.
More edit - memory refreshed

6

@rossko57 “GenericItem” did solve it - may thanks

7

Cool,
Please post the working code for others and tick the solution, thanks

8

Here the finally working code:

    gHealth_MS.members.forEach[GenericItem actMS |
            actMS.label=" Sensor - OK " 
    ]