Re: [hibernate-dev] Hibernate O/RM Java 8 API.

Let's keep this on list ok? Thanks. First, have you seen the new hibernate-java8 module that is part of 5.0? Some replies in-line... approach that I took and whether you would for instance consider taking it under the hibernate umbrella as a kind of official extension in future. Hard to say. More than likely the next major release will drop support for Java 6. I personally see no benefit in supporting "just" 7, so I'd likely go right to 8. Object's are not quite useful. Yes, we should certainly do this. I just made some Session methods generic, so this certainly fits. But this is not Java 8 specific in any way... You can do that now: * org.hibernate.Query#setParameter(java.lang.String, java.lang.Object) * org.hibernate.Query#setParameter(java.lang.String, java.lang.Object, org.hibernate.type.Type) I assume you mean adding method signatures accepting those specific types? No idea what you mean here. What do you mean by "type handler"? And as far as using LocalDate, etc as query parameters... you can do that now. Do you mean specific methods accepting them? attributes mapping. As my understanding is correct the relation/entity mapping are being handled by OneToOneType, ManyToOneType classes. To your knowledge would it be possible to provide an overrided version of them, or it would rather require to alter them directly in Hibernate core? As I understand it (I have not looked overly deeply yet), we would essentially need a Type representing Optional that wraps an "underlying Type". It is very similar to the idea of AttributeConverters. We could handle it at a lower lecvel here too like we do for AttributeConverter.