Uploaded image for project: 'camunda BPM'
  1. camunda BPM
  2. CAM-10650

SpringBoot Starter using CompositeHistoryEventHandler breaks BC

    XMLWordPrintable

    Details

      Description

      What are the steps to reproduce your problem?

      1. Consider having an EnginePlugin that registers an HistoryEventHandler by
        configuration.setHistoryEventHandler(historyEventHandler);
        
      2. Add this plugin as a component to the spring context

      What is the problem?
      This obviously overrides the content of the field ProcessEngineConfiguration#historyEventHandler which, since camunda-bpm-spring-boot-starter-3.3.1, contains a CompositeHistoryEventHandler holding two handlers, among them a handler to integrate with SpringEventing.

      Setting an individual HistoryEventHandler as described above thus, removes those handlers from the engine config again.

      Moreover, it is impossible to securely add the individual handler through CompositeHistoryEventHandler.add() as the collection of handlers already contained in the composite is entirely unaccessible apart from that very adder method.

      What would be the expected behavior:
      Adding an individual history event handler should add the handler to a CompositeHistoryEventHandler through a consitent API.

      Hints (optional):
      Moreover, the following would be very helpful

      • having a method boolean <T extends HistoryEventHandler> CompositeHistoryEventHandler::contains(Class<T> clazz);
      • having an accessor for the elements the list of history event handlers contains

        mgm-controller-panel

        This is the controller panel for Smart Panels app

          Attachments

            Issue Links

            There are no Sub-Tasks for this issue.

              Activity

                People

                Assignee:
                Unassigned Unassigned
                Reporter:
                sebastian.warnke Sebastian Warnke
                Votes:
                1 Vote for this issue
                Watchers:
                6 Start watching this issue

                  Dates

                  Created:
                  Updated:
                  Resolved:

                    Salesforce