'Cascade parent-child relation with Hibernate
I have a real-life situation, where objects are organized as this: one tree has more branches, one branch has more leaves, one leave has many colors, and so on. From my experience, this seems to be a common pattern when dealing with a non-trivial model.
In Hibernate it is not possible to nest ElementCollections. Therefore developers have to fake this functionality with multiple OneToMany associations.
Assuming the (not-recommended) situation when I'm receiving an entity as a @ResponseBody parameter,
Is there a technique to use cascade to deal with this for both insert and update? How to deal with child entities that already exist?
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