How to map postgresql "timestamp with time zone" in a JPA 2 entity
I eventually made this "work" - in a hackish sort of way - by turning off schema validation.
Previously, I had <property name="hibernate.hbm2ddl.auto" value="validate"/>"hibernate.hbm2ddl.auto"
in my persistence.xml. When I commented out this property, my app server started and the model "worked".
The final form of my entity was:
@Entity@Table(schema = "content", name = "theme")public class Theme extends AbstractBaseEntity { private static final long serialVersionUID = 1L; @Column(name = "run_from", columnDefinition = "timestamp with time zone not null") @NotNull @Temporal(TemporalType.TIMESTAMP) private Date runFrom; @Column(name = "run_to", columnDefinition = "timestampt with time zone not null") @NotNull @Temporal(TemporalType.TIMESTAMP) private Date runTo; /* Getters, setters, .hashCode(), .equals() etc omitted */
After reading quite a bit on this, I got the impression is that there is no easy way to map Postgresql timestamp with time zone columns.
Some JPA implementation + database combinations support this natively ( EclipseLink + Oracle is one example ). For hibernate, with jodatime extensions, it is possible to store timezone aware timestamps using a normal timestamp + a varchar field for the timezone( I could not do that since I was constrained from changing the database schema ). Jadira user types or completely custom user types can also be used to tackle this problem.
I need to note that my use-case for this entity is "read only", so I could get away with a seemingly naive "solution".
Add @Column(columnDefinition= "TIMESTAMP WITH TIME ZONE")
@Column(name = "run_from", columnDefinition= "TIMESTAMP WITH TIME ZONE")@NotNull@Temporal(TemporalType.TIMESTAMP)private Date runFrom;