Closed
Description
#2294 introduced the Fluent API. However, scheduling issues prevented us from implementing class-based DTOs.
As part of that development effort, the following chunk of code from FetchableFluentQueryByExample was withdrawn since it isn't relevant to everything.
/**
* Draft version of a projection-based query using class-based DTOs.
*
* @param sort
* @param queryType
* @param example
* @return
*/
private TypedQuery<R> createProjectionQueryByExample(Sort sort, Class<R> queryType, Example<S> example) {
CriteriaBuilder builder = this.entityManager.getCriteriaBuilder();
CriteriaQuery<R> query = builder.createQuery(queryType);
Root<R> root = query.from(queryType);
query.select(root);
Predicate predicate = QueryByExamplePredicateBuilder.getPredicate(
builder.createQuery(example.getProbeType()).from(example.getProbeType()), builder, example, escapeCharacter);
if (predicate != null) {
query.where(predicate);
}
if (sort.isSorted()) {
query.orderBy(toOrders(sort, root, builder));
}
return this.entityManager.createQuery(query);
}