I have a situation where I want to do something similar to subclasses. But I am not sure how Hibernate behaves when the discriminator value changes.

Main class: QueuedCommand

Sub class A : RawCommand

Sub class B : InterpretedCommand

Sub class C : ProcessedCommand

What I essentially do is to have a serverside process which takes RawCommands and produces InterpretedCommands, takes InterpretedCommands and produces ProcessedCommands.

So how does the Cache handle this behaviour ?

Henrik

Well if you can have your objects suddenly change their type in your java code, Hibernate can handle that, too. But as this is not possible in java, you will anyways have to create new objects and copy the old values over, delete the old object and save the new one.