Question
Morgan Stanley
IN
Last activity: 31 Jan 2019 23:04 EST
When is a declare expression triggered exactly?
When is a declare expression triggered exactly?
With when ever input changes: Will the expression be triggered immediately after the inputs property changes or will it wait for some time.
Ex:
I have created a property AProp, with a declare expression with "When ever input changes" with value as "ABC" + .AListener.
Its triggered when a property named AListener changes.
In pyDefault DT i have set the AProp after settting the AListener value.. However, the value of the AProp is that of AListener.
Seems like the expression is triggered after the pyDefault is executed as per tracer
Pegasystems Inc.
FR
Hello,
Maybe you can check the "How this rule runs paragraph" in here: https://community.pega.com/sites/default/files/help_v731/procomhelpmain.htm#rule-/rule-declare-/rule-declare-expressions/related.htm
Morgan Stanley
IN
For activities i understand that it gets triggered between the Steps.
What is the case with a data transform?
Also is there any way that we could stop the backward chaining? I mean if i would like to set the value of a property (which already has a declare expression) and stop it from executing the declare expression.
Pegasystems Inc.
FR
Same for a Data Transform. What do you mean, stop backward chaining temporarily and set it back after? I guess this is just wrong design.
Morgan Stanley
IN
What i could understand from the tracer is that the declare expression were triggered after the DT execution has ended?
Is this expected? Ideally it should happen after the step itself?