org.arp.javautil.serviceloader

Class SingletonServiceLoader

java.lang.Object

org.arp.javautil.serviceloader.SingletonServiceLoader

public class SingletonServiceLoader
extends Object

Functions like ServiceLoader except it returns lists of Classes instead of an Iterable of instances.

Author:

Andrew Post

Constructor Summary

Constructors

Constructor and Description
SingletonServiceLoader()

Method Summary

Modifier and Type	Method and Description
static <S> S	load(Class<S> service) Loads the classes of the providers of a service.
static <S> S	load(Class<S> service, ClassLoader loader) Loads a service provider using ServiceLoader, assuming that there is only one instance of the given service provider.

Methods inherited from class java.lang.Object

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

Constructor Detail

SingletonServiceLoader

public SingletonServiceLoader()

Method Detail

load

public static <S> S load(Class<S> service)

Loads the classes of the providers of a service.

Parameters:

service - a service type.

Returns:

a list of classes implementing the given service type, using the current thread's context class loader.

Throws:

ServiceConfigurationError - if something goes wrong with loading a service provider's class.

load

public static <S> S load(Class<S> service,
                         ClassLoader loader)

Loads a service provider using ServiceLoader, assuming that there is only one instance of the given service provider.

Parameters:

service - the class or interface that service providers implement or extend.

Throws:

ServiceConfigurationError - if no classes were found or if multiple classes were found.