question.

is it possible to specify an identifier with a custom type, as opposed to the normal types supplied by hibernate, e.g. int, string??

In one of my POJO classes, I have a primary key field that has a custom type called "Identifier". Inside this Identifier object I have other types, such as digit, code, etc. I am wondering whether this Identifier type can be incorporated in my id element in the hibernate mapping file? Can this be supported, or am I restricted to only the supplied hibernate types?

yes, you can use your own type for an <id> in hibernate ... you can set your type using the 'type'-attribute of the <id>-tag ...

But as far as my tests have shown, it's not enough to implement only the "UserType"-interface. For the proper Interface take a look in the existing Hibernate-Types and take the same ... or extend an existing hibernate-type.

gtx
curio