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Set LocalDateTime to autogenerate with hibernate 4.3.10

I currently have a base object like this:

@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

something to make the default database current and temporary?

ps I am not allowed to use hibernation 5.

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2 answers


You can use @PrePersist annotation.

Executed before management of the entity is actually executed or cascaded. This call is synchronous with the persisting operation.

Example:



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

And if you deem it appropriate, you will also get @PreUpdate annotation.

More about events that happen inside hibernate persistence engine

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@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 the answers to this question should help you: Creation timestamp and last update timestamp with Hibernate and MySQL

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