[OPENJPA-859] OpenJPA requires all persistent fields to be specified on an XML defined entity

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.0-M2
• Fix Version/s: 2.0.0-beta
• Component/s: jpa
• Assignee: Richard G. Curtis
• Reporter: Jeremy Bauer
• Created: 14/Jan/09 15:17
• Updated: 09/Mar/10 18:31
• Resolved: 10/Dec/09 19:33

Description

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