CODEWITHSUNDEEP
javahibernatetime
almeynman
almeynman

Reputation: 7398

Set LocalDateTime to autogenerate with hibernate 4.3.10

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.

Upvotes: 3

Views: 1130

Answers (2)

Viraj Nalawade
Viraj Nalawade

Reputation: 3227

@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

Upvotes: 0

Laurentiu L.
Laurentiu L.

Reputation: 6686

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

Upvotes: 1

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