DMN - Get multiple decision tables output from the decision tree

Camunda 7 Topics Discussion & Questions
1

Hello,

I’v a case where I have different decision tables related to each other.
I want to be able to call the decision table C and get all output from A,B and C because I’ll need to save those results for later use.

CleanShot 2022-12-14 at 15.14.12
CleanShot 2022-12-14 at 15.14.12678×729 23.4 KB

I saw different post about this with different solution :

The issues with theses differents solution :

  • Add a new decision table that aggregate all decision table, it’s error prone when adding new decision table to both link to the root decision table and add it as an output.
  • Add a new JavaDelegate means I’ll have to deals with BPMN which I don’t want to use in my project
  • Add a new literal expression rules looks the same to me as the first solution with lot of possible error since I can’t get all inputs dynamicly.

I tried to catch all event with a customPostDecisionTableEvaluationListeners in Java but I cannot link the request from my decisionService to the event I catch.

And output I would like to have is an map of all decision table and theirs respective output :

{
  "A" : {
    "output1": "value1",
    "output2" : "value2"
  },
  "B" : {
    "output3": "value3",
    "output4" : "value4"
  },
  "C" : {
    "output5" : "value5"
  }
}

Only by calling C. Is it possible ? Do you have any solution how I can evaluate a decision table and get all mandatory decision table.

Thanks a lot

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