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Can Hibernate map a Map<?, Set<?>>?

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ejain

Post subject: Can Hibernate map a Map<?, Set<?>>?

Posted: Wed Oct 01, 2008 2:45 pm

Newbie

Joined: Wed Oct 01, 2008 2:27 pm
Posts: 18

Code:

class Foo {
  int id;
  Map<String, Set<Bar>> bars;
}

class Bar {
  int id;
}

Code:

create table foo (id int);
create table foo_bar (foo_id int, key varchar, bar_id int);
create table bar (id int);

Looking at the documentation, it seems you'd have to introduce a FooBar class and replace the map (or use some kind of post-load/pre-update listener to keep it in sync, ugh). But maybe there is a better way?

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