com.vaadin.collaborationengine.

Class LocalBackend

  • All Implemented Interfaces:

    Backend


    public class LocalBackend
extends Object
implements Backend

    A simple backend implementation that only distributes events locally and assumes that there is no previous history for event logs.

    Author:

    Vaadin Ltd

    • Constructor Detail

      • LocalBackend

        public LocalBackend()

    • Method Detail

      • openEventLog

        public Backend.EventLog openEventLog(String topicId)

        Description copied from interface: Backend

        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.

        Specified by:

        openEventLog in interface Backend

        Parameters:

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

        Returns:

        an object representing the event log, not null