Example of using CURRENT_DATE in JPA query

Question

Can anyone point me to an example on how to use CURRENT_DATE in a JPA query?

CURRENT_DATE is specified in JPA but I haven't been able to make it work. I always get the unexpected token [CURRENT_DATE] exception. Since it is specified in JPA all providers should comply with it right?

I'm using EclipseLink 2.0 BTW.

Answer 1

It can be used like so:

Query query = manager
    .createQuery("SELECT c FROM CITIES c WHERE c.founded = CURRENT_DATE");
for (Object city : query.getResultList()) {
  System.out.println(city);
}

...where founded is a temporal type:

  @Column(name = "FOUNDED")
  @Temporal(TemporalType.DATE)
  private Date founded = new Date();

Not a great example, but you get the idea. I'm using Eclipselink 1.1.2

Answer 2

The answer to this question was retrieving the values via JPA and then do the math in plain Java.

Answer 3

If you are using the Expression Framework there is the Expression currentDateDate() method on the Expression (org.eclipse.persistence.expressions.Expression) object.