Package de.iip_ecosphere.platform.services.environment.switching

Interface ServiceSelector<T>

Type Parameters:
T - selection input type
public interface ServiceSelector<T>
Code plugin to select a service from a given type. To be hooked into through configuration model and code generation.
Author:
Holger Eichelberger, SSE

  • Method Details

    • select

      String select(T input)
      Selects a service based on the input.
      Parameters:
      input - the input to use
      Returns:
      the service id, null for staying with the actual service

    • actionCompleted

      default void actionCompleted(String id)
      Notifies that the action the selection was selected for is completed.
      Parameters:
      id - the selected service id, this may still be the same service id as before, null if no service is running

    • initial

      default void initial(String id)
      Called with the initial service id.
      Parameters:
      id - the service id

    • createStrategy

      default Strategy createStrategy()
      Returns the switching strategy.
      Returns:
      the switching strategy

    • createInstance

      static <T> ServiceSelector<T> createInstance(ClassLoader loader, String cls, Class<T> type, String dflt)
      Creates a selector instance with fallback.
      Type Parameters:
      T - the input type of the selector
      Parameters:
      loader - the class loader to use
      cls - the class name of the selector to instantiate
      type - the input type of the selector
      dflt - the default return value if the selector cannot be instantiated
      Returns:
      a (default) selector