[cdi-dev] [JBoss JIRA] (CDI-628) Allow overriding of Scope at Injection Point

Allow overriding of Scope at Injection Point -------------------------------------------- Key: CDI-628 URL: https://issues.jboss.org/browse/CDI-628 Project: CDI Specification Issues Issue Type: Feature Request Affects Versions: 2.0 (proposed) Reporter: Stephan Knitelius Priority: Minor Allow overriding scopes at injection point. {code} @SessionScope public class FeatureState {...} public class Bean B { @Inject @ConversationScoped //Overriding original scope public BeanA beanA; ... } {code} Sample use-case for for a feature flag: {code} @Alternative public class FeatureStateProducer { @Inject @SessionScoped private FeatureState devState; @Inject @ConversationScoped private FeatureState viewState; @Inject private JNDIProvider jndiProvider; private boolean viewOnly = true; @PostConstruct public void postConstruct() { this.viewMode = ...; //read config. } @Produces public FeatureState produce() { return viewOnly ? viewState : devState; } } {code} Currently this can be solved by overriding scope with @Qualifiers: {code} @ViewMode @ConversationScoped public class ViewFeatureState extends FeatureState {...} @DevMode @SessionScoped public class DevFeatureState extends FeatureState {...} {code} Risks: * developers might start to define the scopes at IP and on bean (hard to maintain). * confusing when debugging, annotation on bean, e.g. @ApplicationScoped yet behaving differently. * etc...