Set LocalDateTime to autogenerate with hibernate 4.3.10

Question

Currently I have a base entity as follows:

@MappedSuperclass
public abstract class BaseEntity {
    @Id
    @GeneratedValue(strategy=GenerationType.SEQUENCE)
    private Long id;
    private boolean deleted;

    @Convert(converter = LocalDateTimePersistenceConverter.class)
    private LocalDateTime createdAt;
    @Convert(converter = LocalDateTimePersistenceConverter.class)
    private LocalDateTime updatedAt;
}

Is it possible to annotate LocalDateTime with something to make database default to current date and time?

p.s. I am not allowed to use hibernate 5.

score 1 · Accepted Answer · answered Jun 08 '15 at 08:14

You could use the @PrePersist annotation.

Executed before the entity manager persist operation is actually executed or cascaded. This call is synchronous with the persist operation.

Example:

  @PrePersist
  protected void onCreate() {
    createdAt = new LocalDateTime();
    updatedAt = new LocalDateTime();
  }

And if you deem it fit you also have available the @PreUpdate annotation.

Read more on events that occur inside hibernate's persistence mechanism

score 0 · Answer 2 · edited May 23 '17 at 12:31

0

@LaurentiuL is correct.
But I think below should also work

@Convert(converter = LocalDateTimePersistenceConverter.class)
private LocalDateTime createdAt = new LocalDateTime ();
@Convert(converter = LocalDateTimePersistenceConverter.class)
private LocalDateTime updatedAt= new LocalDateTime ();

Also answers of this question should help you : Creation timestamp and last update timestamp with Hibernate and MySQL

edited May 23 '17 at 12:31

Community

1
1

answered Jun 08 '15 at 08:18

Viraj Nalawade

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@Nomad ohh.. yes thats right.. In that case the answers at said questions should work.. – Viraj Nalawade Jun 08 '15 at 09:26

Set LocalDateTime to autogenerate with hibernate 4.3.10

2 Answers2