Question

i am currently working on one project. In my project there are many entity/POJO files. currently i am using simple hibernate.cfg.xml to add all the mapping files in to the configuration like :-

<mapping resource="xml/ClassRoom.hbm.xml"/>
<mapping resource="xml/Teacher.hbm.xml"/>
<mapping resource="xml/Student.hbm.xml"/>

i am having huge number of mapping files, which makes my hibernate.cfg file looks a bit messy, so is there any way so that i do not need to add the above in to the hibernate.cfg file. rather there can be any other way to achieve the same.. please help

Answer 1

You could create a Configuration programmatically and use Configuration#addClass(Class) to specify the mapped class (and Hibernate will load the mapping file for you). From the javadoc:

Read a mapping as an application resource using the convention that a class
named foo.bar.Foo is mapped by a file foo/bar/Foo.hbm.xml
which can be resolved as a classpath resource.

So you could do something like this:

Configuration cfg = new Configuration()
    .addClass(org.hibernate.auction.Item.class)
    .addClass(org.hibernate.auction.Bid.class)
    ...
    .configure();
SessionFactory factory = cfg.buildSessionFactory();

See also

• Section 3.1. Programmatic configuration