[weld-issues] [JBoss JIRA] (WELD-2415) Consider adding a handler interface for lazily-initialized dependencies

Title: Message Title

Martin Kouba commented on

A more general solution which should work with 3.0.2+ and 2.4.6+:

@Dependent

public class Lazy<T> {

    private final Handler<T> handler;

    @SuppressWarnings("unchecked")

    @Inject

    public Lazy(InjectionPoint injectionPoint, WeldInstance<Object> instance) {

        ParameterizedType parameterizedType = (ParameterizedType) injectionPoint.getType();

        Type requestedType = parameterizedType.getActualTypeArguments()[0];

        this.handler = (Handler<T>) instance.select(requestedType, injectionPoint.getQualifiers().toArray(new Annotation[] {})).getHandler();

    public T get() {

        return handler.get();

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