OpenJPA requires all persistent fields to be specified on an XML defined entity
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Key: OPENJPA-859
URL: https://issues.apache.org/jira/browse/OPENJPA-859
Project: OpenJPA
Issue Type: Bug
Components: jpa
Affects Versions: 2.0.0
Reporter: Jeremy Bauer
This problem was reported by Frank Schwarz on the user forum[1]. It appeared
to be related to the use of the new element-collection element in XML, but is
actually are result of not having all persistent fields defined in XML. If all
fields are defined - or the entity is simply annotated with @Entity no
exception is thrown.
Based on the JPA spec:
2.1.1 - If the entity has field-based access, the persistence provider runtime
accesses instance variables
directly. All non-transient instance variables that are not annotated with the
Transient
annotation are persistent. When field-based access is used, the
object/relational mapping annotations
for the entity class annotate the instance variables.
In addition, the <entity> xsd documentation states: [entity] Defines the
settings and mappings for an entity. Is allowed to be
sparsely populated and used in conjunction with the annotations.
[1]
http://n2.nabble.com/orm.xml---element-collection---trunk-tp2142331p2142331.html
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