Module io.helidon.inject.testing

Package io.helidon.inject.testing

Class ReflectionBasedSingletonServiceProvider<T>

java.lang.Object

io.helidon.inject.runtime.AbstractServiceProvider<T>

io.helidon.inject.testing.ReflectionBasedSingletonServiceProvider<T>

Type Parameters:

T - the service type

All Implemented Interfaces:

Weighted, ActivationPhaseReceiver, Activator, DeActivator, InjectionPointProvider<T>, Resettable, ServiceProvider<T>, ServiceProviderBindable<T>, Provider<T>, Comparable<Weighted>

public class ReflectionBasedSingletonServiceProvider<T>
extends AbstractServiceProvider<T>

Creates a simple reflection based service provider - for testing purposes only!

Nested Class Summary

Nested classes/interfaces inherited from class io.helidon.inject.runtime.AbstractServiceProvider

AbstractServiceProvider.LogEntryAndResult

Field Summary

Fields inherited from interface io.helidon.common.Weighted

DEFAULT_WEIGHT

Method Summary

Modifier and Type	Method	Description
static <T> ReflectionBasedSingletonServiceProvider<T>	create(Class<T> serviceType, io.helidon.inject.api.ServiceInfoBasics siBasics)	Generates a service provider eligible for binding into the service registry with the following proviso: The service type will be of jakarta.inject.Singleton scope The service type will be created reflectively, and will expect to have an empty constructor The service type will not be able to provide its dependencies, nor will it be able to accept injection The service type will not be able to participate in lifecycle - PostConstructMethod or PreDestroyMethod Note: Generally it is encouraged for users to rely on the annotation processors and other built on compile-time tooling to generate the appropriate service providers and modules.
protected T	createServiceProvider(Map<String,Object> deps)	Creates the service with the supplied resolved dependencies, key'ed by each injection point id.
boolean	isCustom()	Identifies whether the implementation was custom written and not code generated.
Class<T>	serviceType()	The type of the service being managed.

Methods inherited from class io.helidon.inject.runtime.AbstractServiceProvider

activate, activationLog, activator, createLogEntryAndResult, currentActivationPhase, deactivate, deActivator, dependencies, dependencies, description, doConstructing, doDestroying, doInjectingFields, doInjectingMethods, doPostConstructing, doPreDestroying, equals, expectedQualifiedServiceError, first, get, get, getOrCreateInjectionPlan, hashCode, id, identityPrefix, identitySuffix, injectionPlanBinder, injectionServices, injectionServices, interceptor, interceptor, isAlreadyAtTargetPhase, isInterceptor, isProvider, list, logger, maybeActivate, moduleName, name, onFailedFinish, onFinalShutdown, onFinished, onPhaseEvent, postConstructMethod, preDestroyMethod, reset, serviceInfo, serviceInfo, serviceProviderBindable, serviceRef, serviceTypeInjectionOrder, startTransitionCurrentActivationPhase, toAbstractServiceProvider, toString, weight

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface io.helidon.inject.api.ServiceProviderBindable

isIntercepted, isRootProvider, rootProvider, rootProvider

Methods inherited from interface io.helidon.common.Weighted

compareTo

Method Details

create

public static <T>
ReflectionBasedSingletonServiceProvider<T> create(Class<T> serviceType,
 io.helidon.inject.api.ServiceInfoBasics siBasics)

Generates a service provider eligible for binding into the service registry with the following proviso:

• The service type will be of jakarta.inject.Singleton scope
• The service type will be created reflectively, and will expect to have an empty constructor
• The service type will not be able to provide its dependencies, nor will it be able to accept injection
• The service type will not be able to participate in lifecycle - PostConstructMethod or PreDestroyMethod

Note: Generally it is encouraged for users to rely on the annotation processors and other built on compile-time tooling to generate the appropriate service providers and modules. This method is an alternative to that mechanism and therefore is discouraged from production use. This method is not used in normal processing by the reference injection provider implementation.

Type Parameters:

T - the class of the service type

Parameters:

serviceType - the service type

siBasics - the service info basic descriptor, or null to generate a default (empty) placeholder

Returns:

the service provider capable of being bound to the services registry

See Also:

• InjectionTestingSupport.bind(InjectionServices, ServiceProvider)

isCustom

public boolean isCustom()

Description copied from class: AbstractServiceProvider

Identifies whether the implementation was custom written and not code generated. We assume by default this is part of code-generation, and the default is to return false.

Overrides:

isCustom in class AbstractServiceProvider<T>

Returns:

true if a custom, user-supplied implementation (rare)

createServiceProvider

protected T createServiceProvider(Map<String,Object> deps)

Description copied from class: AbstractServiceProvider

Creates the service with the supplied resolved dependencies, key'ed by each injection point id.

Overrides:

createServiceProvider in class AbstractServiceProvider<T>

Parameters:

deps - the resolved dependencies

Returns:

the newly created managed service

serviceType

public Class<T> serviceType()

Description copied from interface: ServiceProvider

The type of the service being managed.

Returns:

the service type being managed