BPM Service Task Definition - Output Parameter

Question

I’m currently creating some Service Tasks for/in jBPM 5.4.

I’m able to define the task so far in the MyServiceTask.conf

import org.drools.process.core.datatype.impl.type.StringDataType;
[
   [
     "name" : „MyServiceTask“,
     "parameters" : [
        „parameter1" : new StringDataType()
      ],
    "displayName" : „MyServiceTask",
    "icon" : "icons/myServiceTask.gif"
  ]
]

So when I drag this task in my bmpn editor I see something like this

input parameters
from: (nothing set) to parameter1

How do I define output parameters?

Is it possible to set default mapping values, so that for example per default the process variable „de.xxx.xx.process1/variable1“ will be mapped to „parameter1“?

Answer 1

Simply add a results node in your wid:

import org.drools.process.core.datatype.impl.type.StringDataType; [ [ "name" : "MyServiceTask“, "parameters" : [ "parameter1" : new StringDataType() ], "results":[ "result": new StringDataType() ], "displayName" : „MyServiceTask", "icon" : "icons/myServiceTask.gif" ] ]

As far as I know, there is now way to specify mapping. This has to be done in the bpmn editor.