ej.service

Interface ServiceRegistry

All Superinterfaces:

ServiceLoader

All Known Subinterfaces:

SharedServiceRegistry

All Known Implementing Classes:

SimpleServiceRegistry

public interface ServiceRegistry
extends ServiceLoader

An extension of service loader that allows to register services dynamically.

Method Summary

Modifier and Type	Method and Description
<T> void	register(Class<T> service, T instance) Registers a service instance.
<T> void	unregister(Class<T> service, T instance) Unregisters a service instance.

Methods inherited from interface ej.service.ServiceLoader

getService

Method Detail

register

<T> void register(Class<T> service,
                  T instance)

Registers a service instance.

The given instance is returned each time the service is requested by ServiceLoader.getService(Class).

If the service already has a registered instance, the previous one is replaced.

Type Parameters:

T - the service type.

Parameters:

service - the implemented service.

instance - the service instance.

Throws:

SecurityException - if a security manager exists and does not allow the caller to register the given service instance.

unregister

<T> void unregister(Class<T> service,
                    T instance)

Unregisters a service instance.

If the given instance is not the one currently registered for the given service, nothing is done.

Type Parameters:

T - the service type.

Parameters:

service - the implemented service.

instance - the service instance.

Throws:

SecurityException - if a security manager exists and does not allow the caller to unregister the given service instance.