Add table at runtime to existing db schema

sb_101 · **Joined:** Tue Mar 03, 2009 4:33 am **Posts:** 1

Hi,

I’m a relative beginner with hibernate but I’m working on an application that uses hibernate3 annotations. Currently we have a need to add a table to the existing database schema at runtime.

My understanding is that hibernate builds up a collection of all the annotated classes as part of the AnnotationConfiguration therefore is it even possible to add classes to this list and “re-build” the mappings to include a new table?

Any advice would be appreciated.

Thank you.

mmerder · **Posted:** Tue Mar 03, 2009 6:10 am

Changing an existing Configuration of a SessionFactory is not possible. But you can create a new Configuration, add all mapping files and create a new SessionFactory:

Code:

      Configuration cfg = new Configuration();
      //getMappingFiles returns a list of File-Objects
      for (String s : getMappingFiles()) {
         cfg.addFile(s);
      }
      cfg.configure();

      SessionFactory factory = cfg.buildSessionFactory();

mmerder · **Posted:** Tue Mar 03, 2009 6:14 am

Changing an existing Configuration of a SessionFactory is not possible. But you can create a new Configuration, add all mapping files and create a new SessionFactory:

Code:

      Configuration cfg = new Configuration();
      //getMappingFiles returns a list of File-Objects
      for (String s : getMappingFiles()) {
         cfg.addFile(s);
      }
      cfg.configure();

      SessionFactory factory = cfg.buildSessionFactory();