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Tag Archives: OpenJPA

Constructor Arguments with JPA-Annotations

Posted on 14. July 2010 by fakod

Scala provides the possibility to define constructor argument that are class properties as well. I recoded the entity OrganisationAssociation to use j__organisations as argument. The example entity from my post Relations with Scala Collections and JPA looks like this: @Entity Continue reading Constructor Arguments with JPA-Annotations→

Posted in Uncategorized | Tagged JPA, OpenJPA, Scala

Relations with Scala Collections and JPA

Posted on 1. July 2010 by fakod

Java Collection JPA’s One to Many and Many to Many relations require an attribute of type java.util.Collection like it is shown in the next example. This will be normally a List interface and a ArrayList implementation. … @OneToMany public Collection Continue reading Relations with Scala Collections and JPA→

Posted in Uncategorized | Tagged JPA, OpenJPA, Scala

Scala Entity and JPAExtension Examples (JPA 2.0)

Posted on 10. June 2010 by fakod

I am using: a Mapped Superclass for all basic entities (MIPEntity) a pre persist entity listener to change some values the following hierarchy: MIPEntity . . . // do something with oi } withQuery (filter) Apply function on entity got Continue reading Scala Entity and JPAExtension Examples (JPA 2.0)→

Posted in Uncategorized | Tagged JPA, JPAExtension, OpenJPA, ORM

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