Using 3.1.2

I have a class & table with fields firstName & lastName. I want to define a derived property fullName as being firstName + ' ' + lastName. I can't get it to work.
My class has a getFullName() method but no setFullName() - as it's derived. When I run my app though, I get the following error :

org.hibernate.PropertyNotFoundException: Could not find a setter for property fullName in class it.orchestrate.oep.contact.Contact
at org.hibernate.property.BasicPropertyAccessor.createSetter(BasicPropertyAccessor.java:216)
at org.hibernate.property.BasicPropertyAccessor.getSetter(BasicPropertyAccessor.java:209)
at org.hibernate.mapping.Property.getSetter(Property.java:256)
at org.hibernate.tuple.PojoEntityTuplizer.buildPropertySetter(PojoEntityTuplizer.java:259)
at org.hibernate.tuple.AbstractEntityTuplizer.<init>(AbstractEntityTuplizer.java:122)
at org.hibernate.tuple.PojoEntityTuplizer.<init>(PojoEntityTuplizer.java:55)
at org.hibernate.tuple.TuplizerLookup.create(TuplizerLookup.java:64)
at org.hibernate.tuple.EntityMetamodel.<init>(EntityMetamodel.java:257)
at org.hibernate.persister.entity.AbstractEntityPersister.<init>(AbstractEntityPersister.java:412)
at org.hibernate.persister.entity.SingleTableEntityPersister.<init>(SingleTableEntityPersister.java:108)
at org.hibernate.persister.PersisterFactory.createClassPersister(PersisterFactory.java:55)
at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:215)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1176)

My mapping file snippet :

<hibernate-mapping>
<!-- Stuff -->
<property name="firstName" length="128" type="string" column="firstname"/>
<property name="lastName" length="128" type="string" column="lastname"/>
<property name="fullName" insert="false" update="false" formula="(firstName + lastName)"/>

<!-- Stuff -->
</hibernate-mapping>

Anyone get ideas? I'm really stuck on this one. I've tried lots of different tags like including the type and length attributes to the derived property mapping but no go.

thanks,
Tom.

out of curiosity, why don't you just have a method on the object that concats them rather than have a non-changeable property in the hibernate? Hibernate will load both the first and last name fields anyway, so wouldn't the code be cleaner if logic like the concat was done in the java object? You would then also be able to add a space between the first and last name (if you wanted)

Hi.

I would go with rkhanmoh's suggested approach, but if you still want to create the derived property in your mapping you need to create the setter setFullName() in your class ... Even though you don't use the setter in your application, Hibernate needs it for setting the value.

or specify field access:
property name="fullName" access=field" formula="(firstName + lastName)"/>

but certainly changing getFullName() in your model to perform the concatenation seems like the much more reasonable approach.

I want to do queries on the full name property and not have to do the concatenation each time. I didn't realise it would store a field for me, that's not what I want. I just wanted to be able to use it in the Criteria API

thanks for your responses.
Tom