Package com.microej.kf.util.service

Class ServiceRegistryKF

java.lang.Object

ej.service.loader.SimpleServiceLoader

ej.service.registry.SimpleServiceRegistry

com.microej.kf.util.service.ServiceRegistryKF

All Implemented Interfaces:

ServiceLoader, ServiceRegistry

public class ServiceRegistryKF
extends SimpleServiceRegistry
implements ServiceRegistry

The Class ServiceRegistryKF which contains the Local Service mapping for each context.

Field Summary

Fields inherited from class ej.service.loader.SimpleServiceLoader

services

Constructor Summary

Constructors

Constructor	Description
ServiceRegistryKF()	Instantiates a new service registry KF.

Method Summary

Modifier and Type	Method	Description
<T> T	getService(Class<T> service)	Gets the instance of the given service.
<T> void	register(Class<T> service, T instance)	Registers a service instance.
<T> void	register(Class<T> service, T instance, boolean isKernelLocal)	Registers a Service Instance for the Kernel.
<T> void	unregister(Class<T> service, T instance)	Unregisters a service instance.
<T> void	unregister(Class<T> service, T instance, boolean isKernelLocal)	Unregisters a Service Instance from the Kernel.

Methods inherited from class ej.service.loader.SimpleServiceLoader

checkServicePermission, createAlternativeImplementation, putService

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ServiceRegistryKF

public ServiceRegistryKF()

Instantiates a new service registry KF.

Method Detail

getService

public <T> T getService(Class<T> service)

Description copied from interface: ServiceLoader

Gets the instance of the given service.

If there is already an instance in cache, it is returned otherwise a new one is created.

May return null if the service is not defined.

Specified by:

getService in interface ServiceLoader

Overrides:

getService in class SimpleServiceLoader

Type Parameters:

T - the service type.

Parameters:

service - the service.

Returns:

the instance of the given service.

register

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

Description copied from interface: ServiceRegistry

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.

Specified by:

register in interface ServiceRegistry

Overrides:

register in class SimpleServiceRegistry

Type Parameters:

T - the service type.

Parameters:

service - the implemented service.

instance - the service instance.

register

public <T> void register(Class<T> service,
                         T instance,
                         boolean isKernelLocal)

Registers a Service Instance for the Kernel.

Parameters:

service - the class type of the service

instance - the instance of the service

isKernelLocal - if the service should be stored in the local context of the Kernel or shared with other features

unregister

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

Description copied from interface: ServiceRegistry

Unregisters a service instance.

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

Specified by:

unregister in interface ServiceRegistry

Overrides:

unregister in class SimpleServiceRegistry

Type Parameters:

T - the service type.

Parameters:

service - the implemented service.

instance - the service instance.

unregister

public <T> void unregister(Class<T> service,
                           T instance,
                           boolean isKernelLocal)

Unregisters a Service Instance from the Kernel.

Parameters:

service - the class type of the service

instance - the instance of the service

isKernelLocal - if the service should be removed from the local context of the Kernel or shared with other features