I have to use maps (as opposed to POJOs) to map my business objects and am running into issues with entities that have a composite primary key (i.e. the mapping uses <composite-id>).

The problem is that Hibernate seems to be ignoring the class specified through the class attribute and silently creating a HashMap to store the individual fields. I need to be able to get to the class representing the identifier since it computes a value that depends on the composite key columns.

Another problem is that since I'm in map-mode the MapAccessor throws an exception when it encounters a composite-id element since it's expecting a Map instance.

What's the approach for dealing with composite-ids when using maps? Any help is appreciated!

Thanks,

-Kaare

Well, it looks like like I'm SOL on this one. When using a POJO Hibernate instantiates the custom composite-id class, but when using a map the class is silently ignored and I get a HashMap instance instead.

Does anybody know if there's a workaround for this? I considered using a generator or a custom data type, but it seems like a bad hack.

-Kaare