TransientReference

The following is a bean marked with the @TransientReference annotation:

@SessionScoped
@Typed(Comment.class)
public class TransientOrderManager implements Comment<String>, Serializable {
      private Order order;
      public TransientOrderManager() {
      }
      @Inject
      public TransientOrderManager(@TransientReference Order order) {
              this.order = order;
      }
      @Inject
      public void initialize(@TransientReference Order order) {
             this.order = order;
      }
      @Override
      public Order getOrder() {
            return order;
      }
}

The order is a dependent object:

@Dependent
public class Order {...}

The comment is a simple interface:

public interface Comment<T> {
        Order getOrder();
}

Now inject the orderManager:

 @Inject
 private Comment<String> orderManager;

then call the order: orderManager.getOrder()

The order is marked as @TransientReference so, after it is created, it will be removed. A session scoped can inject a dependent bean only if there is this annotation. If we remove the annotation, we get an error because the order is not serializable.