trying to create a default value for a variable

[Jon_H]

This is a message end event I need to include the variable named repetitionInterval.
I’m trying to create a default value for this variable. If it is present, I want to use the existing value. If it is not present, I want to use “0 0 0 * * ?” for the value. Simple right? It’s a empty/null check with a conditional operator. So, why doesn’t it work?

${empty repetitionInterval ? “0 0 0 * * ?” : repetitionInterval}

[Alex_Voloshyn]

Hi @Jon_H
I can’t test it myself at the moment but what if you try something like the following?

${execution.getVariable("repetitionInterval") != null ? execution.getVariable("repetitionInterval") : "0 0 0 * * ?"}

Regards,
Alex

[Jon_H]

Thanks @Alex_Voloshyn. Yes, that is pretty much exactly what I ended up with and it does work.

The documentation claims to support “Jakarta Expression Language 4.0 standard” here, Expression Language | docs.camunda.org. That’s where that “empty” syntax comes from, but it doesn’t seem to work as advertised.

Thanks again.
Jon