fjtirado commented on code in PR #2196:
URL:
https://github.com/apache/incubator-kie-kogito-apps/pull/2196#discussion_r1971387869
##########
data-index/data-index-storage/data-index-storage-jpa-common/src/main/java/org/kie/kogito/index/jpa/storage/JPAQuery.java:
##########
@@ -195,4 +191,21 @@ private List<Predicate>
getRecursivePredicate(AttributeFilter<?> filter, Root<E>
.collect(toList());
}
+ @Override
+ public long count() {
+ CriteriaBuilder builder =
repository.getEntityManager().getCriteriaBuilder();
+ CriteriaQuery<Long> criteriaQuery = builder.createQuery(Long.class);
+ Root<E> root = criteriaQuery.from(entityClass);
+ criteriaQuery.select(builder.count(root));
+ addWhere(builder, criteriaQuery, root);
+ return
repository.getEntityManager().createQuery(criteriaQuery).getSingleResult();
+ }
+
+ private <V> void addWhere(CriteriaBuilder builder, CriteriaQuery<V>
criteriaQuery, Root<E> root) {
+ if (filters != null && !filters.isEmpty()) {
+ List<Predicate> predicates = getPredicates(builder, root);
+ criteriaQuery.where(predicates.toArray(new Predicate[] {}));
Review Comment:
In fact, there it not need to collect items to List, they can be collected
to array directly
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