NullPointerException in {{LiteralExpression#renderProjection}}. {{ValueHandlerFactory.determineAppropriateHandler( literal.getClass() );}} returns null for enum classes. Triggered when constructing a new result object using a selectCase criteria.
{code:java}
@Test
public String renderProjection void hhh123Test ( RenderingContext renderingContext ) {
// some drivers/servers do not like parameters in the select clause
final ValueHandlerFactory.ValueHandler handler EntityManager em =
ValueHandlerFactory entityManagerFactory . determineAppropriateHandler createEntityManager ( literal.getClass( ) ) ;
if ( ValueHandlerFactory em . isCharacter getTransaction ( literal ) ) {
return '\'' + handler . render begin ( literal ) + '\'' ;
}
else { // insert a few MyEntity instances
return handler em . render persist ( literal new MyEntity( ) ) ;
}
}
{code}
Triggered when constructing a new result object using a selectCase criteria em .
{code:java}
public static class Foo {
enum Status { BAR, BAZ }
private final Status foo persist(new MyEntity()) ;
public Foo em.flush ( final Status foo ) { this.foo = foo ; }
}
@Entity
public static class Wibble {
@Id
private int id;
}
public List<Foo> // query () { for Foo results using construct and selectCase
final CriteriaBuilder cb = em.getCriteriaBuilder();
final CriteriaQuery<Foo> query = cb.createQuery(Foo.class);
final Root< Wibble MyEntity > root = query.from( Wibble MyEntity .class);
query
.select(cb.construct(Foo.class,
cb.selectCase()
.when(cb.equal(root.get( Wibble_. " id " ), 1), Foo. Status State . BAR FIRST )
.otherwise(Foo. Status State . BAZ NOT_FIRST ) ,
root.get(org.hibernate.bugs.MyEntity_.id )
) )
.orderBy(cb.asc(root.get(org.hibernate.bugs.MyEntity_.id))) ;
return
final List<Foo> foos = em.createQuery(query).getResultList();
assertThat(foos.size(), equalTo(2));
assertThat(foos.get(0).state(), equalTo(Foo.State.FIRST));
assertThat(foos.get(1).state(), equalTo(Foo.State.NOT_FIRST));
em.getTransaction().commit();
em.close();
}
@Accessors(fluent = true)
@Getter
@RequiredArgsConstructor
public static class Foo {
enum State {FIRST, NOT_FIRST}
private final State state;
private final int id;
}
{ code} |
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