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 Summary

Modifier and Type	Method	Description
default void	actionCompleted(java.lang.String id)	Notifies that the action the selection was selected for is completed.
static <T> ServiceSelector<T>	createInstance(java.lang.ClassLoader loader, java.lang.String cls, java.lang.Class<T> type, java.lang.String dflt)	Creates a selector instance with fallback.
default Strategy	createStrategy()	Returns the switching strategy.
default void	initial(java.lang.String id)	Called with the initial service id.
java.lang.String	select(T input)	Selects a service based on the input.

Method Detail

select

java.lang.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(java.lang.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(java.lang.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(java.lang.ClassLoader loader,
                                             java.lang.String cls,
                                             java.lang.Class<T> type,
                                             java.lang.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