Is it possible to use a JSON Object as a Variable in Activiti and use specific Nodes as Variable

Question

I want to use a JSON Object in the activity variable

so i have a declared JSON Object:

[
  "test.jpeg",
  "test.xml",
  "test_de2.mp4",
  "test_season.jpeg",
  "test_series.jpeg",
  "test_v05.mp4"
 ]

I put this as a process variable :

processVariables.put("result",jsonObject)

is it possible to acess a single element via the expression language?

like

${result[0]}

or something like this?

I tried a bit around but it did not work. I can't even find a good documentation for the expression language used in activity.

no. you will have to use `Javascript` first to parse it into your `JSON`, by default the engine will take it as a String. — Abbas Kararawala, Oct 14 '16 at 10:31

score 1 · Accepted Answer · answered Oct 31 '16 at 04:55

1

By default, the engine will assume it to be a String as there are currently no datatype for JSON in process variables. However, you can use JavaScript to parse your string to JSON.

answered Oct 31 '16 at 04:55

Abbas Kararawala

1,254
12
19

Kindly elaborate on how to use JavaScript. I am editing the BPMN XML using Eclipse IDE and the only options I see for language under expression language are Java and XPath. – Tšeliso Molukanele Aug 05 '22 at 22:40
You can parse using java as well. – Abbas Kararawala Sep 04 '22 at 19:34

Is it possible to use a JSON Object as a Variable in Activiti and use specific Nodes as Variable

1 Answers1