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Difference between revisions of "EclipseLink/Examples/JPA/Migration/Hibernate/V3Annotations"
< EclipseLink | Examples | JPA | Migration | Hibernate
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− | This example | + | This example catalogs the migration from Hibernate(TM) Annotations to EclipseLink JPA with its custom annotations. This is a work in progress so please feel free to add your comment |
== Entity Annotations == | == Entity Annotations == |
Revision as of 13:46, 15 July 2008
This example catalogs the migration from Hibernate(TM) Annotations to EclipseLink JPA with its custom annotations. This is a work in progress so please feel free to add your comment
Contents
Entity Annotations
@org.hibernate.annotations.Entity
@org.hibernate.annotations.Entity( selectBeforeUpdate = true, dynamicInsert = true, dynamicUpdate = true, optimisticLock = OptimisticLockType.ALL, polymorphism = PolymorphismType.EXPLICIT)
Custom Sequence Generator
In Hibernate a custom generator for sequence values can be defined and used as:
@Id @GeneratedValue(generator = "system-uuid") @GenericGenerator(name = "system-uuid", strategy = "mypackage.UUIDGenerator") public String getTransactionGuid()
With EclipseLink a custom sequence generator can be implemented and registered for use using the @GeneratedValue. See: How to use Custom Sequencing (ie. UUID) for more details.