Execute delete statement with jpa query

Use the executeUpdate method of the Query interface. It will return the number of deleted entries:

public int deleteOldMessages(int daysBack) {
  var query = em.createQuery("delete from Message m where createdAt < :givenTimestamp");
  query.setParameter(Message.GIVEN_TIMESTAMP, LocalDateTime.now().minusDays(daysBack));

  return query.executeUpdate();

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Adrian Matei

Adrian Matei
Life force expressing itself as a coding capable human being

Default value for jax-rs query parameter

Default value for jax-rs query parameter code snippet Continue reading