[ 
https://issues.apache.org/jira/browse/OPENJPA-281?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Kevin Sutter resolved OPENJPA-281.
----------------------------------

    Resolution: Fixed

Resolved via revision 562986.

> EAGER not the default fetch type without the @Basic annotation
> --------------------------------------------------------------
>
>                 Key: OPENJPA-281
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-281
>             Project: OpenJPA
>          Issue Type: Bug
>          Components: jpa
>    Affects Versions: 0.9.7
>            Reporter: Kevin Sutter
>            Assignee: Kevin Sutter
>             Fix For: 1.0.0
>
>         Attachments: openjpa-281.patch
>
>
> There's an on-going discussion on the dev mailing list concerning this 
> problem 
> (http://www.nabble.com/Eager-fetching-not-working-with-enums-and-lobs-tf4037105.html).
>   Since I've gotten agreement on at least one aspect of the problem, I 
> decided to open this JIRA Issue to document the problem.
> Here's a summary of the problem:
> I am finding that the supposed default action of Eager fetching is not 
> happening with @Enumerated and @Lob fields.  If I explicitly specify the 
> @Basic annotation, then the fields are eagerly fetched.  But, without this 
> extraneous @Basic, these fields are lazily loaded.  This action does not seem 
> to be consistent with the spec.  Nor, can I find any mention of this 
> alternate behavior in our OpenJPA manual.  Sounds like a bug to me.  Any 
> other insights?
> This works (eager loading kicks in):
>     @Basic @Enumerated(EnumType.STRING)
>     private Gender gender;
> This does not work (lazy loading kicks in):
>     @Enumerated(EnumType.STRING)
>     private Gender gender;
> I have also tried to use defaults (without any annotations), and lazy loading 
> still kicks in:
>     private Gender gender;
> The JPA spec attempts to address this situation in section 9.1.18...  Section 
> 9.1.8 of the JPA spec indicates that @Basic is optional and applies to the 
> following types: 
> "..Java primitive types, wrappers of the primitive types, java.lang.String, 
> java.math.BigInteger,
> java.math.BigDecimal, java.util.Date, java.util.Calendar, java.sql.Date,
> java.sql.Time, java.sql.Timestamp, byte[], Byte[], char[], Character[],
> enums, and any other type that implements Serializable."
> And, since the default fetch type for @Basic is EAGER, it looks like we need 
> to do eager fetching for both @Enumerated and @Lob fields unless otherwise 
> overridden by a LAZY fetch type (ie. @Basic(fetch=LAZY)).  Agree?
> We're still working on the agreement...  :-)
> Thanks,
> Kevin

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.

Reply via email to