175 words
javax.persistence.Enumerated - JPA annotation
javax.persistence
Annotation Enumerated
- Target:
- Fields (including property get methods)
Specifies that a persistent property or field should be persisted
as a enumerated type. The
Enumerated annotation may
be used in conjunction with the Basic annotation, or in
conjunction with the ElementCollection annotation when the
element collection value is of basic type. If the enumerated type
is not specified or the Enumerated annotation is not
used, the EnumType value is assumed to be ORDINAL.
Example:
public enum EmployeeStatus {FULL_TIME, PART_TIME, CONTRACT}
public enum SalaryRate {JUNIOR, SENIOR, MANAGER, EXECUTIVE}
@Entity public class Employee {
public EmployeeStatus getStatus() {...}
...
@Enumerated(STRING)
public SalaryRate getPayScale() {...}
...
}
- Since:
- JPA 1.0
- See Also:
BasicElementCollection
Learn how to define and use enum fields in Chapter 2 of the ObjectDB/JPA manual.
This documentation page is derived (with some adjustments) from the open source JPA 2 RI (EclipseLink)
and is available under the terms of the Eclipse Public License, v. 1.0 and Eclipse Distribution License, v. 1.0.
and is available under the terms of the Eclipse Public License, v. 1.0 and Eclipse Distribution License, v. 1.0.
Object Relational Mapping (ORM) JPA 2 providers include Hibernate, EclipseLink, TopLink, OpenJPA and DataNucleus.
Object DB is not an ORM JPA implementation but an Object Database for Java with built in JPA 2 support.
