Module io.helidon.service.registry

Package io.helidon.service.registry

Class GeneratedService.OptionalSupplierFactoryInterceptionWrapper<T>

java.lang.Object

io.helidon.service.registry.GeneratedService.OptionalSupplierFactoryInterceptionWrapper<T>

Type Parameters:

T - type of the provided contract

All Implemented Interfaces:

Supplier<Optional<T>>

Enclosing class:

GeneratedService

public abstract static class GeneratedService.OptionalSupplierFactoryInterceptionWrapper<T>
extends Object
implements Supplier<Optional<T>>

Wrapper for generated Service factories that implement a Supplier of an optional service.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	OptionalSupplierFactoryInterceptionWrapper(Supplier<Optional<T>> delegate)	Creates a new instance delegating service instantiation to the provided supplier.

Method Summary

Modifier and Type	Method	Description
Optional<T>	get()
protected abstract T	wrap(T originalInstance)	Wrap the instance for interception.
protected Service.QualifiedInstance<T>	wrapQualifiedInstance(Service.QualifiedInstance<T> qualifiedInstance)	Wrap a qualified instance so the actual instance is correctly intercepted.

Methods inherited from class java.lang.Object

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

Constructor Details

OptionalSupplierFactoryInterceptionWrapper

protected OptionalSupplierFactoryInterceptionWrapper(Supplier<Optional<T>> delegate)

Creates a new instance delegating service instantiation to the provided supplier.

Parameters:

delegate - used to obtain optional service instance that will be wrapped for interception

Throws:

NullPointerException - when delegate is null

Method Details

get

public Optional<T> get()

Specified by:

get in interface Supplier<T>

wrapQualifiedInstance

protected Service.QualifiedInstance<T> wrapQualifiedInstance(Service.QualifiedInstance<T> qualifiedInstance)

Wrap a qualified instance so the actual instance is correctly intercepted.

Parameters:

qualifiedInstance - qualified instance created by appropriate factory

Returns:

qualified instance with wrapped instance

wrap

protected abstract T wrap(T originalInstance)

Wrap the instance for interception. This method is code generated.

Parameters:

originalInstance - instance to wrap

Returns:

wrapped instance