How to get Hibernate object relations dynamically?

Question

I'm using Hibernate and I need to find a way of retrieving the relations for an object dynamically at run-time. I can't find this in the API.

Can anyone point me in the right direction?

What do you mean by "relations for an object dynamically"? criteria API ? — khmarbaise, May 18 '10 at 14:08
e.g. given a Person object that I could find out that there is a one-to-many relationship to PhoneNumber, and a one-to-one relationship to HomeTown — Michael Jones, May 18 '10 at 14:32
I guess the following thread answers your question: http://stackoverflow.com/questions/1374748/determining-manytomany-vs-onetomany-using-classmetadata — luxerama, May 19 '10 at 18:24

score 1 · Answer 1 · answered May 18 '10 at 14:48

1

What You look for is SessionFactory's getClassMetadata() method. It returns ClassMetadata object describing given entity.

answered May 18 '10 at 14:48

Bartek Jablonski

great thanks. but which methods do i need to call on the ClassMetadata object? – Michael Jones May 18 '10 at 15:00

score 1 · Accepted Answer · answered May 18 '10 at 14:57

1

My best recommendation is to use plain JDBC DatabaseMetaData

DatabaseMetaData.getCrossReference

DatabaseMetaData.getImportedKeys

DatabaseMetaData.getExportedKeys

answered May 18 '10 at 14:57

stacker

2 Answers2