更新到hibernate 5.0.7和jpa 2.1之后，hibernate命名查询错误

Question

I have very simple named query that use to work before update but now I am getting runtime error.

this is the named query :

@Entity
@Table(name="FRA_HIER_NODE_TYPE", schema="FRA_DATA")
@NamedQuery(name="NodeType.FetchNodeTypes", query="FROM NodeType")
public class NodeType {
...

The exception i see :

Caused by: org.hibernate.HibernateException: Errors in named queries: NodeType.FetchNodeTypes
    at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:493)
    at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:444)
    at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:708)
    at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:724)
    at org.springframework.orm.hibernate5.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:416)
    at org.springframework.orm.hibernate5.LocalSessionFactoryBean.afterPropertiesSet(LocalSessionFactoryBean.java:401)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1637)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1574)
    ... 25 more

Answer 1

You should use something like this :

@Entity
@Table(name="FRA_HIER_NODE_TYPE", schema="FRA_DATA")
@NamedQuery(name="NodeType.FetchNodeTypes",query="SELECT * FROM NodeType") 

Hope this Helps.

Answer 2

Did you try this:

@Entity
@Table(name="FRA_HIER_NODE_TYPE", schema="FRA_DATA")
@NamedQuery(name="NodeType.FetchNodeTypes",query="SELECT n FROM NodeType n")

Answer 3

Are you declaring your own SessionFactory for Hibernate? I don't remember how Hibernate works with Spring.

But if you have with hibernate config you may have lines like this:

<mapping class="com.example.NodeType" />

This is removed in Hibernate 5. Instead you have to declare your entities in code when building SessionFactory . For example:

        StandardServiceRegistry standardRegistry = new StandardServiceRegistryBuilder()
            .configure()
            .build();

        Metadata metadata = new MetadataSources(standardRegistry)
            .addAnnotatedClass(NodeType.class)
            .getMetadataBuilder()
            .applyImplicitNamingStrategy(ImplicitNamingStrategyJpaCompliantImpl.INSTANCE)
            .build();

        sessionFactory = metadata
            .getSessionFactoryBuilder()
            .build();

See more: http://docs.jboss.org/hibernate/orm/5.0/userGuide/en-US/html_single/#bootstrap-native-sessionfactory

Maybe there is some SessionFactory builder for Spring that you now have to configure similary. If so, please post your new config for others.

Hope this helps.