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Typed query hints [message #1090993] Tue, 20 August 2013 23:27 Go to next message
Roger Spall is currently offline Roger Spall
Messages: 17
Registered: January 2013
Junior Member
I'm loving CriteriaBuilders and the Entity metadata for strongly typed queries...

Anyway, is there any way to use the same strong typing for specifying query hints?

For example, I want to add a batch read hint using a Typed field, so instead of:

               final TypedQuery<TechnicalPublicationType> readAllQuery = ydsusEntityManager.createQuery("select o from TechnicalPublicationType o", TechnicalPublicationType.class);
                readAllQuery.setHint("eclipselink.batch", "o.categories");


I want to do something like:

                final CriteriaBuilder builder = ydsusEntityManager.getCriteriaBuilder();
                final CriteriaQuery<TechnicalPublicationType> query = builder.createQuery(TechnicalPublicationType.class);
                final Root<TechnicalPublicationType> from = query.from(TechnicalPublicationType.class);
                final TypedQuery<TechnicalPublicationType> readAllQuery = ydsusEntityManager.createQuery(query);
                readAllQuery.setHint("eclipselink.batch", from.get(TechnicalPublicationType_.categories));
Re: Typed query hints [message #1096573 is a reply to message #1090993] Wed, 28 August 2013 15:29 Go to previous messageGo to next message
James Sutherland is currently offline James Sutherland
Messages: 1939
Registered: July 2009
Location: Ottawa, Canada
Senior Member

No, hints only use string.

James : Wiki : Book : Blog : Twitter
Re: Typed query hints [message #1106198 is a reply to message #1096573] Tue, 10 September 2013 20:39 Go to previous message
Roger Spall is currently offline Roger Spall
Messages: 17
Registered: January 2013
Junior Member
Feature request Smile

I guess this would be the JPA standards committee!
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