com.vaadin.collaborationengine.

Interface Backend

  • All Known Implementing Classes:

    LocalBackend


    public interface Backend

    The interface between a cluster backend and Collaboration Engine.

    Author:

    Vaadin Ltd

    • Nested Class Summary

      Nested Classes
      Modifier and Type Interface and Description
      static interface  Backend.EventLog

      A strictly ordered log of submitted events.

    • Method Detail

      • openEventLog

        Backend.EventLog openEventLog(String logId)

        Opens an event log with the given id. The returned object can be used to capture any common state related to this particular event log. An actual underlying connection is not needed until EventLog#subscribe(Consumer) is invoked, but it is still recommended to make this method fail fast in case it would not be possible to open an actual underlying connection later.

        Parameters:

        logId - the id of the event log to open, not null

        Returns:

        an object representing the event log, not null