JPA Annotations for Fields

The way a field of a persistable class is managed by JPA can be set by the following annotations:

• javax.persistence.Basic
• javax.persistence.Embedded
• javax.persistence.ElementCollection
• javax.persistence.Id
• javax.persistence.EmbeddedId
• javax.persistence.Version
• javax.persistence.Transient

Additional annotations (and enum) are designated for enum fields:

• javax.persistence.Enumerated
• javax.persistence.MapKeyEnumerated
• javax.persistence.EnumType

Other additional annotations (and enum) are designated for date and calendar fields:

• javax.persistence.Temporal
• javax.persistence.TemporalType
• javax.persistence.MapKeyTemporal

Chapter 2 of the ObjectDB manual explains how to use all the above annotations.