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Posted to dev@openjpa.apache.org by "Fay Wang (JIRA)" <ji...@apache.org> on 2008/04/21 05:22:21 UTC
[jira] Updated: (OPENJPA-578) Specifying a default for
VersionStrategy in persistence.xml has no effect when a version field is
present in the entity class.
[ https://issues.apache.org/jira/browse/OPENJPA-578?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Fay Wang updated OPENJPA-578:
-----------------------------
Attachment: openjpa.patch
The attached patch fixes this problem.
> Specifying a default for VersionStrategy in persistence.xml has no effect when a version field is present in the entity class.
> ------------------------------------------------------------------------------------------------------------------------------
>
> Key: OPENJPA-578
> URL: https://issues.apache.org/jira/browse/OPENJPA-578
> Project: OpenJPA
> Issue Type: Bug
> Components: jdbc
> Affects Versions: 1.0.2
> Reporter: Fay Wang
> Fix For: 1.2.0
>
> Attachments: openjpa.patch
>
>
> Specifying a default for VersionStrategy in persistence.xml has no effect when a version field is present in the entity class.
> According the OpenJPA documentation the following property should override the default value of VersionStrategy and the specified RowChangeTimestampStrategy should be applied for all entity classes.
> <property name="openjpa.jdbc.MappingDefaults"
> value="jpa(VersionStrategy=com.ibm.websphere.persistence.RowChangeTimestampStrategy)" />
> JPA accepts this property but then it has no effect on Entity mappings if the version field is present.
> import javax.persistence.*;
> import org.apache.openjpa.persistence.jdbc.VersionStrategy;
> @Entity
> public class EntityA {
> @Id int id;
> String name;
> double amt;
> @Version java.sql.Timestamp lastUpdate;
> For EntityA, the version strategy should be RowChangeTimestampStrategy. Instead, the NumberVersionStrategy is adopted.
> If the @Version is removed from EntityA, the version strategy becomes RowChangeTimestampStrategy.
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