Charles F. Munat wrote:
> I thought about that. Essentially, that's what Hibernate is supposed to
> do, though. It only saves the integer value. (At least, that's what
> @Enumerated(EnumType.ORDINAL) is supposed to mean, if I understand it
> correctly.)
>
>
Hibernate understands Java enumerations which are different from Scala
enumerations.
Just out of curiosity... why are you using JPA? Most of the issues
you've been having with JPA are solved in Lift's Mapper.
> I'm still curious as to why the code I have doesn't work, but if no one
> else knows, then I guess I'll have to do it manually as you suggest.
>
> Thanks.
>
> Chas.
>
> David Pollak wrote:
>
>> Rather than storing the Gender enumeration in the RDBMS, I'd suggest
>> storing the Int value of the enumeration.
>>
>> @Column{val name="gender"}
>> var genderInt : Int = _
>>
>>
>> def gender: Gender = Gender(genderInt)
>> def gender_=(what: Gender.Value) = ....
>>
>>
>>
>> Charles F. Munat wrote:
>>
>>> I'm still trying to get a Gender enumeration to work with JPA. The
>>> problem now seems to be on the JPA end (I'm using the JPADemo code that
>>> Derek provided).
>>>
>>> I get the following error:
>>> javax.persistence.PersistenceException: org.hibernate.MappingException:
>>> Could not determine type for: scala.Enumeration$Value, for columns:
>>> [org.hibernate.mapping.Column(gender)]
>>>
>>> Here is the relevant code:
>>>
>>>
>>> @serializable
>>> object Gender extends Enumeration {
>>> type Gender = Value
>>> val Unknown = Value(0, "Unknown")
>>> val Male = Value(1, "Male")
>>> val Female = Value(2, "Female")
>>> }
>>>
>>> import Gender._
>>>
>>> @Entity
>>> @Table{val name = "USERS"}
>>> class User {
>>> @Id
>>> @GeneratedValue{val strategy = GenerationType.AUTO}
>>> var id : Long = _
>>>
>>> @Column{val name="NAME_LAST"}
>>> var nameLast : String = ""
>>>
>>> @Column{val name="NAME_FIRST"}
>>> var nameFirst : String = ""
>>>
>>> var username : String = ""
>>>
>>> @Column{val name="EMAIL_ADDRESS"}
>>> var emailAddress : String = ""
>>>
>>> @Enumerated(EnumType.ORDINAL)
>>> var gender : Gender = _
>>>
>>> ...
>>> }
>>>
>>> Also, where is the best place to put the Gender enumeration so that it
>>> is visible both in the persistence project and in the webapp?
>>>
>>> Thanks for any and all help.
>>>
>>> Chas.
>>>
>>>
>>>
>>
>
> >
>
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