[sangawar]

Hello,

I am using myeclipse 7.0. My idea is to use annotations and created a simply database with
couple of tables. I was able to generate the annotated code etc. Wrote a tester and
getting this exception. I created everything without using packages etc. It generated the .class files, .xml files etc correctly. The code has the annotation. In the main, I even did
the AnnotationConfiguration stuff. I simply not in a position to figure out why I am
getting this. It looks to me that it is not Hibernate 3.2 and it looks like it is the old way
of doing things (No Annotations) with tons of .xml files etc. Please help…

Thanks

Pramod

Exception in thread “main” org.hibernate.MappingException: Unknown entity: Person
at org.hibernate.impl.SessionFactoryImpl.getEntityPersister(SessionFactoryImpl.java:550)
at org.hibernate.impl.SessionImpl.getEntityPersister(SessionImpl.java:1338)
at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:98)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:187)

[Brian Fernandes]

Pramod,

1) Is the Person class listed in your hibernate.cfg.xml file? You should have a <mapping class = “Person”/> element in there.

2) If the above is true and you’re still having problems, I would recommend generating into a fixed package as importing classes from default packages tend to sometimes cause problems.

Hope this helps.

[Author]

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