querydsl instanceof results in wrong query for Type(?1)

[azerafati]

copied from SE (http://stackoverflow.com/questions/27941534/)

If I use Hibernate entity Inheritance feature, I could easily always try to load only the subClass I need like this

SELECT p FROM Product p WHERE TYPE(p) = ?1

trying to achieve the same query with queryDSL:

QProduct.product.instanceOfAny(clazz)

But I get the following exception

Caused by: java.lang.IllegalArgumentException: Parameter value [Product] did not match expected type [java.lang.Integer (n/a)]

query that querydsl produces is

SELECT count(product)
FROM Product product
WHERE product.class = ?1  // this should be TYPE(product) = ?1

my enitity

@Entity
@Table(name = "product")
@Inheritance(strategy=InheritanceType.JOINED)
public abstract class Product {

    ...

Full Stack Trace (for a similar case but different Class name):

Caused by: java.lang.IllegalArgumentException: Parameter value [BasketDiscount] did not match expected type [java.lang.Integer (n/a)]
    at org.hibernate.jpa.spi.BaseQueryImpl.validateBinding(BaseQueryImpl.java:874)
    at org.hibernate.jpa.internal.QueryImpl.access$000(QueryImpl.java:80)
    at org.hibernate.jpa.internal.QueryImpl$ParameterRegistrationImpl.bindValue(QueryImpl.java:248)
    at org.hibernate.jpa.internal.QueryImpl$JpaPositionalParameterRegistrationImpl.bindValue(QueryImpl.java:337)
    at org.hibernate.jpa.spi.BaseQueryImpl.setParameter(BaseQueryImpl.java:674)
    at org.hibernate.jpa.spi.AbstractQueryImpl.setParameter(AbstractQueryImpl.java:198)
    at org.hibernate.jpa.spi.AbstractQueryImpl.setParameter(AbstractQueryImpl.java:49)
    at com.mysema.query.jpa.impl.JPAUtil.setConstants(JPAUtil.java:55)
    at com.mysema.query.jpa.impl.AbstractJPAQuery.createQuery(AbstractJPAQuery.java:128)
    at com.mysema.query.jpa.impl.AbstractJPAQuery.count(AbstractJPAQuery.java:79)
    at org.springframework.data.jpa.repository.support.QueryDslJpaRepository.findAll(QueryDslJpaRepository.java:125)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.executeMethodOn(RepositoryFactorySupport.java:442)
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.doInvoke(RepositoryFactorySupport.java:427)
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.invoke(RepositoryFactorySupport.java:381)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
    at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:98)
    at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:262)
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:95)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
    at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:136)
    ... 94 more

[timowest]

The attached PR removes the HQLTemplates customizations to use the .class legacy syntax, since Hibernate 4 supports now the official JPA 2.0 type(?) syntax.

[mirceade]

Hi,
Do we have a release where this fix was/will be integrated?

[timowest]

It should be available in 3.6.2, which will be released this weekend.

[mirceade]

Thank you for your great work Timo!

[azerafati]

Yea, Thank you guys!

[timowest]

Released in 3.6.2