Class ServiceSelector<T>

java.lang.Object

io.nosqlbench.nb.annotations.ServiceSelector<T>

Type Parameters:

T - The service type

All Implemented Interfaces:

Predicate<ServiceLoader.Provider<? extends T>>

public class ServiceSelector<T>
extends Object
implements Predicate<ServiceLoader.Provider<? extends T>>

A service loader filter which works with Service to load a named service. This version requires the caller to provide the service loader instance, since it is now caller sensitive.

Use it like this:

       ResultValueFilterType filterType =
           ServiceSelector.of("core", ServiceLoader.load(ResultValueFilterType.class)).get();
 

Constructor Summary

Constructors

Constructor	Description
ServiceSelector(String name, ServiceLoader<? extends T> loader)

Method Summary

Modifier and Type	Method	Description
Optional<? extends T>	get()
List<? extends T>	getAll()
List<? extends ServiceLoader.Provider<? extends T>>	getAllProviders()
T	getOne()
ServiceLoader.Provider<? extends T>	getOneProvider()
static <T> boolean	matches(String name, ServiceLoader.Provider<? extends T> provider)
static <T> ServiceSelector<T>	of(String name, ServiceLoader<? extends T> loader)
boolean	test(ServiceLoader.Provider<? extends T> provider)

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.function.Predicate

and, negate, or

Constructor Details

ServiceSelector

public ServiceSelector(String name,
 ServiceLoader<? extends T> loader)

Method Details

of

public static <T> ServiceSelector<T> of(String name,
 ServiceLoader<? extends T> loader)

matches

public static <T> boolean matches(String name,
 ServiceLoader.Provider<? extends T> provider)

test

public boolean test(ServiceLoader.Provider<? extends T> provider)

Specified by:

test in interface Predicate<T>

getOneProvider

public ServiceLoader.Provider<? extends T> getOneProvider()

getOne

public T getOne()

getAllProviders

public List<? extends ServiceLoader.Provider<? extends T>> getAllProviders()

getAll

public List<? extends T> getAll()

get

public Optional<? extends T> get()