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EclipseLink/UserGuide/JPA/Basic JPA Development/Mapping/Basic Mappings/Default Conversions and Converters
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Key API
Default Conversions and Converters
EclipseLink defines the following converter annotations and XML attributes (in addition to JPA-defined ones):
EclipseLink persistence provider searches the converter annotations in the following order:
- @Convert
- @Enumerated
- @Lob
- @Temporal
- Serialized (automatic)
You can define converters at the class, field and property level. You can specify EclipseLink converters on the following classes:
- @Entity :
For more information, see Section 10.1 "Entity Annotation" in the JPA Specification.
- @MappedSuperclass
For more information, see Section 11.1.34 "MappedSuperclass Annotation" in the JPA Specification.
- @Embeddable
For more information, see Section 11.1.3 "Embeddable Annotation" in the JPA Specification.
You can use EclipseLink converters with the following mappings:
If you specify a converter with any other type of mapping annotation, EclipseLink will throw an exception.
- @Embeddable
- @MappedSuperclass
