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JavaRanch » Java Forums » Databases » Object Relational Mapping
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I get exception that class is not mapped.

Tim McGuire
Ranch Hand

Joined: Apr 30, 2003
Posts: 820

I have one class (CountyBean) that is mapped to the county table.

On my dev environment (connects to Dev database) it works as expected. On the Test environment (connects to Test database) , I got the unmapped class exception for the CountyBean. I noticed that other Entities that behaved like CountyBean did not implement Serializable. Once I stopped implementing it for CountyBean, It worked correctly.
These entities do not UPDATE or INSERT, they only select at this point.
I thought Hibernate persisted entities were supposed to implement Serializable. If so, I must have missed some simple concept in setting up my project. Can anyone enlighten me?
Hemant Thard
Ranch Hand

Joined: Dec 23, 2008
Posts: 122
hi Tim,

persisted entities in hibernate are not stored in serialized form.

check this out.
Serialize objects in Hibernate

 
It is sorta covered in the JavaRanch Style Guide.
 
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