Multi-instance pool

Users
1

I wanted to add a multi-instance pool (3 vertical lines in parallel), but couldn’t find the option. I checked and found a previous post asking the same question (https://forum.camunda.org/t/define-multi-instance-pool/4045). Just wondering whether the feature has been developed or not.

Lin

1 Like
2

Hi @Lin
You need like this picture?
image

Please share what’s your mind to get best answer.

3

Below is the shape I wanted to create:

image.png

4
5

A process may involve the participation of multi-instances of a third party. For example, seeking evidence from multiple witnesses is required before lodging an insurance claim. Using the multi-instance pool would capture the scenario.

6

Our tool can display participant multiplicity but you cannot model it.

You can open this diagram for example:

<?xml version="1.0" encoding="UTF-8"?>
<bpmn:definitions xmlns:bpmn="http://www.omg.org/spec/BPMN/20100524/MODEL" xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI" xmlns:dc="http://www.omg.org/spec/DD/20100524/DC" id="Definitions_1" targetNamespace="http://bpmn.io/schema/bpmn" exporter="Camunda Modeler" exporterVersion="3.3.5">
  <bpmn:collaboration id="Collaboration_1">
    <bpmn:participant id="Participant_1" processRef="Process_1">
      <bpmn:participantMultiplicity minimum="1" maximum="10" />
    </bpmn:participant>
  </bpmn:collaboration>
  <bpmn:process id="Process_1" isExecutable="true" />
  <bpmndi:BPMNDiagram id="BPMNDiagram_1">
    <bpmndi:BPMNPlane id="BPMNPlane_1" bpmnElement="Collaboration_1">
      <bpmndi:BPMNShape id="Participant_1_di" bpmnElement="Participant_1" isHorizontal="true">
        <dc:Bounds x="100" y="100" width="500" height="200" />
      </bpmndi:BPMNShape>
    </bpmndi:BPMNPlane>
  </bpmndi:BPMNDiagram>
</bpmn:definitions>
7

Is it somehow possible to create it programmatically? To create a participantMultiplicity element and add it to a Participant’s businessObject or sth lke that? So an ordinary participant would be converted…

8

Yes, that’s possible. What’s missing is merely the UI controls to do it through the modeler.

9

Could you provide a description or a code example how it could be done?

10

Here you go: https://codesandbox.io/embed/bpmn-js-participant-multiplicity-e3lse

11

Sorry to bother you with this. I saw the shape in the code sandbox, but couldn’t create a similar shape using the web site demo.bpmn.io/new

12

As mentioned above, it’s only possible to create it programmatically, not via our UI tools.

13

Works great, thanks! Implemented a functionality to turn pools into multi-instance-pools and vice versa.

14

How to do that? I tried, but the only selection for pools is to change it to a collapsed pool and vice versa.

15

As we’ve said multiple times it is not possible through the context pad yet.

16