Examples with MetamodelImpl org.hibernate.metamodel.internal.MetamodelImpl used on opensource projects

Example 6 with MetamodelImpl

use of org.hibernate.metamodel.internal.MetamodelImpl in project hibernate-orm by hibernate.

the class QueryBuilderTest method testEqualityComparisonLiteralConversion.

@Test
public void testEqualityComparisonLiteralConversion() {
    EntityManager em = getOrCreateEntityManager();
    em.getTransaction().begin();
    CriteriaBuilderImpl cb = (CriteriaBuilderImpl) em.getCriteriaBuilder();
    MetamodelImpl mm = (MetamodelImpl) em.getMetamodel();
    CriteriaQuery<Integer> cquery = cb.createQuery(Integer.class);
    Root<Product> product = cquery.from(Product.class);
    EntityType<Product> Product_ = mm.entity(Product.class);
    cquery.select(cb.toInteger(product.get(Product_.getSingularAttribute("quantity", Integer.class))));
    ComparisonPredicate predicate = (ComparisonPredicate) cb.equal(product.get(Product_.getSingularAttribute("partNumber", Long.class)), 373767373);
    assertEquals(Long.class, predicate.getRightHandOperand().getJavaType());
    cquery.where(predicate);
    em.createQuery(cquery).getResultList();
    predicate = (ComparisonPredicate) cb.ge(cb.length(product.get(Product_.getSingularAttribute("name", String.class))), 4L);
    assertEquals(Integer.class, predicate.getRightHandOperand().getJavaType());
    cquery.where(predicate);
    em.createQuery(cquery).getResultList();
    em.getTransaction().commit();
    em.close();
}