Hibernate Community • View topic - @TypeDef, @Entity & @MappedSuperClass problem

View unanswered posts | View active topics

Board index » Hibernate & Java Persistence » Hibernate Users

All times are UTC - 5 hours [ DST ]

@TypeDef, @Entity & @MappedSuperClass problem

Page 1 of 1

[ 2 posts ]

Previous topic | Next topic

Author

Message

grossetti

Post subject: @TypeDef, @Entity & @MappedSuperClass problem

Posted: Tue Jun 28, 2011 5:00 am

Newbie

Joined: Tue Jun 28, 2011 4:24 am
Posts: 2

Hello,

I have a problem with using @TypeDef and @MappedSuperClass, @TypeDef does not seem to be seen from the child classes (the @Entity ones) here is an example:

Code:

@MappedSuperclass
@TypeDef(name="GUID",typeClass=GUIDAsString.class)
public abstract class MyEntity {

  @Id
  @Type(type="GUID")
  @Column(name="id", nullable=false)
  public GUID id = null;
}

@Entity()
@Table(name="COOL_ENTITY")
class CoolEntity extends MyEntity {}

and I get this when deploying it :

Code:

org.hibernate.MappingException: Could not determine type for: GUID, at table: COOL_ENTITY, for columns: [org.hibernate.mapping.Column(id)]

Why does this happen? I am using Hibernate 3.5.3-Final.

Thanks,
Gabriel

Top

grossetti

Post subject: Re: @TypeDef, @Entity & @MappedSuperClass problem

Posted: Tue Jun 28, 2011 9:23 am

Newbie

Joined: Tue Jun 28, 2011 4:24 am
Posts: 2

I tried changing hibernate versions (now using 3.6.5.Final) to see if that changed anything, as I saw a post that said this was a bug in hibernate. I still got the error, but I noticed something, If I have the TypeDef annotation on only one of the MappedSuperclass' children (and not even on the MappedSuperclass itself) and it works :

Code:

@MappedSuperclass
public abstract class MyEntity {

  @Id
  @Type(type="GUID")
  @Column(name="id", nullable=false)
  public GUID id = null;
}

@Entity()
@TypeDef(name="GUID",typeClass=GUIDAsString.class)
@Table(name="COOL_ENTITY")
class CoolEntity extends MyEntity {}

@Entity()
@Table(name="OTHER_COOL_ENTITY")
class OtherCoolEntity extends MyEntity {}

This poses no problems...I would have thought that it would pose problems though, I don't get it....

Top

Page 1 of 1

[ 2 posts ]

Board index » Hibernate & Java Persistence » Hibernate Users

All times are UTC - 5 hours [ DST ]

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum