Isn't that getReference()? This is the only standard option, isn't it? Pretty useful when you want to delete or to attach to a relationship
-- Jean-Louis Monteiro http://twitter.com/jlouismonteiro http://www.tomitribe.com On Tue, Mar 10, 2015 at 12:34 PM, Alex Soto <asot...@gmail.com> wrote: > Ok it was session.load which instantiate a proxy but not hit the DB. Now I > only need to figure out if this is possible in JPA hehehe, Thanks > > El dt., 10 març, 2015 a les 12:25, Alex Soto (<asot...@gmail.com>) va > escriure: > > > Hi guys, > > > > some years ago I wrote something about JPA and how to add a new entity to > > a many relationship in a performance way but now I can find it. Let me > > explain what I did. > > > > Let's say we have an entity A that have a many relationship to B. Now > > let's say that I want to add a new instance of B into A and I know the id > > of A. > > > > So I have two options, the first one is finding A by id and then add the > B > > entity. But this is not well performed because you are loading entity A > > with all its relationships in memory. > > > > But I remember that was an operation which creates a proxied A with an id > > but without containing anything filled, it was like all fields where > lazy, > > but in this way you could do something like B.setA(proxiedA); and save(B) > > without loading the A document at all. > > > > I cannot find this post and now I cannot remember the operation. Do you > > have any idea about what I am talking about? Maybe it was something > related > > to Hibernate and not JPA? > > > > Thank you so much. > > > > >
