Persistence

Sun, 04 Feb 2018 14:27:00 +0000

Java Type to JDBC Type

JAVA TYPE	JDBC TYPE
java.time.LocalDate	DATE
java.time.LocalTime	TIME
java.time.LocalDateTime	TIMESTAMP
java.time.OffsetTime	TIME_WITH_TIMEZONE
java.time.OffsetDateTime	TIMESTAMP_WITH_TIMEZONE
java.time.Duration	BIGINT
java.time.Instant	TIMESTAMP
java.time.ZonedDateTime	TIMESTAMP

SequenceGenerator

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@Entity
public class Project implements Serializable {
 
  @Id
  @GeneratedValue(generator = "seq_project_id", strategy = GenerationType.SEQUENCE)
  @SequenceGenerator(name= "seq_project_id", sequenceName = "seq_project_id", allocationSize = 1, initialValue = 10000001)
  private Long id;

  ...
}

Changing Persistence Unit dynamically

PS: Persistence.createEntityManagerFactory() is for unmanaged environments (Java SE), not for managed environments (Java EE).

ORM on ARI Systems

Persistence

Java Type to JDBC Type

SequenceGenerator

Changing Persistence Unit dynamically