Hi, just have a question related to lazy load.

I have a class, which has 1 set for relations among objects.

when I load the class, I don't want to load the relation set.

1. when I do the update, do I have to load relation set. (I don't want to update relation set as well).

e.g.

loadMyClass(class, relationSetFlag = false);
updateMyClass(class)

(as right now I get lazy load error)

So I guess this might work

loadMyClass(class, false);
class.setRelationSet(null);
updateMyClass(class)

2. how about delete?

If I don't load the relation set, when I delete the class, will the relation to be deleted? I want to them to be deleted.

Thanks much.

lazy loading is set to true for any assosciation with hibernate, so if you load the parent class, children association don't get loaded by default.

I am not sure why you have load the relation,(assosciated object) while you do an update, if you are updating the parent object, the parent child relationship is generally through a foreign key is present in the child table.
Unless you wan't that foreing key to be updated on the child table

every collection has a attribute called cascade
if you put attribute cascade="all-delete-orphan" on the collection mapping , when you delete the parent object it will automatially delete the underlying assosciated relationship.


I hope this helps.