Package com.vaadin.collaborationengine

Interface AbstractCollaborationManager.ActivationHandler

All Superinterfaces:
Serializable
Enclosing class:
AbstractCollaborationManager
Functional Interface:
This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
@FunctionalInterface public static interface AbstractCollaborationManager.ActivationHandler extends Serializable
The callback executed when the manager is activated, i.e. when the connection to the topic is established.
See Also:

  • Method Summary

    Modifier and Type
    Method
    Description
    Registration
    onActivation()
    The method executed when the manager is activated.

  • Method Details

    • onActivation

      Registration onActivation()
      The method executed when the manager is activated. The method might return a callback which will be invoked when the manager is deactivated, i.e. the connection to the topic is closed. This callback can be used to clean-up resources used during activation.
      Returns:
      a callback which will be executed when the manager is deactivated, or null if not needed