Hibernate version: 3

Mapping documents: using annonations

A question on the @Lob annotation.

I am using the @Lob annotation on a byte variable in my POJO.

The Java Persistence with Hibernate nook by C Bauer & G King state that this annotation provides lazy loading by definition without the need for interception.

However, when i look at the tomcat log I can still see the blob being fetched, not to mention the performance of my application ;)


code:

@Entity
public class File{

@Lob
@Basic (fetch = FetchType.LAZY) // don't think this should be necessary
private byte[] content;

.....

}

This File class is then contained in another POJO with an association where the fetchType is set to EAGER.

@Entity
public class Climas{

@ManyToMany(fetch = FetchType.EAGER)
@JoinTable(...)
private Set<File> file;


}

Does this EAGER fetch override the lazy @Lob or am i doing something else wrong?

I have read on a number of forums that i need to instrument the code for this to work but the book doesn't seem to agree & thus i am a bit confused ..

Cheers in advance

the eager fetch hasn't got anything to do with it I think

In the jpa book I 've read that all simple properties (= all columns, including @Lob's) are always eager fetched.

There are 2 ways to avoid this:
- Enable lazy property fetching, which is probably a bad idea
- Split of the Clob property into it's own table/class and map it with a lazy @OneToOne

cheers ge0ffrey ill give option two a try tomorrow sounds like it should do just the job though :)