Ola…estou com uma duvida nao consigo executar o auto incremento utilizando jpa e hibernate. Criei uma variavel chamada codigo no banco de dados PostreSql e uma sequence chamada autoincremento mas nao consigo rodar na minha aplicacao o meu xml esta assim:
<?xml version=“1.0” encoding=“UTF-8”?>
<!DOCTYPE hibernate-reverse-engineering PUBLIC “-//Hibernate/Hibernate Reverse Engineering DTD 3.0//EN” “<a href="http://hibernate.sourceforge.net/hibernate-reverse-engineering-3.0.dtd">http://hibernate.sourceforge.net/hibernate-reverse-engineering-3.0.dtd</a>” >
<hibernate-reverse-engineering>
<table-filter match-schema=“public” match-name=".*" />
<table schema="public" name="venda">
<primary-key>
<generator class="auto">
<param name="sequence">autoincremento</param>
</generator>
</primary-key>
</table>
</hibernate-reverse-engineering>
so q ele nao funciona da um monte de excessao:
SEVERE: Initial SessionFactory creation failed.
javax.persistence.PersistenceException: org.hibernate.MappingException: could not instantiate id generator
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:737)
at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:121)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:51)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:33)
at com.kiq.util.hibernate.HibernateFactory.<clinit>(HibernateFactory.java:20)
at com.kiq.util.hibernate.BaseDAO.getEntityManager(BaseDAO.java:31)
at com.kiq.util.hibernate.BaseDAO.findByID(BaseDAO.java:93)
at View.FrameComercializar.gravar(FrameComercializar.java:29)
at View.FrameComercializar.main(FrameComercializar.java:16)
Caused by: org.hibernate.MappingException: could not instantiate id generator
at org.hibernate.id.IdentifierGeneratorFactory.create(IdentifierGeneratorFactory.java:98)
at org.hibernate.mapping.SimpleValue.createIdentifierGenerator(SimpleValue.java:152)
at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:192)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1294)
at org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:915)
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:730)
… 8 more
Caused by: org.hibernate.MappingException: could not interpret id generator strategy: auto
at org.hibernate.id.IdentifierGeneratorFactory.getIdentifierGeneratorClass(IdentifierGeneratorFactory.java:109)
at org.hibernate.id.IdentifierGeneratorFactory.create(IdentifierGeneratorFactory.java:92)
… 13 more
Initial SessionFactory creation failed.javax.persistence.PersistenceException: org.hibernate.MappingException: could not instantiate id generator
Exception in thread “main” java.lang.ExceptionInInitializerError
at com.kiq.util.hibernate.HibernateFactory.<clinit>(HibernateFactory.java:24)
at com.kiq.util.hibernate.BaseDAO.getEntityManager(BaseDAO.java:31)
at com.kiq.util.hibernate.BaseDAO.findByID(BaseDAO.java:93)
at View.FrameComercializar.gravar(FrameComercializar.java:29)
at View.FrameComercializar.main(FrameComercializar.java:16)
Caused by: javax.persistence.PersistenceException: org.hibernate.MappingException: could not instantiate id generator
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:737)
at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:121)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:51)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:33)
at com.kiq.util.hibernate.HibernateFactory.<clinit>(HibernateFactory.java:20)
… 4 more
Caused by: org.hibernate.MappingException: could not instantiate id generator
at org.hibernate.id.IdentifierGeneratorFactory.create(IdentifierGeneratorFactory.java:98)
at org.hibernate.mapping.SimpleValue.createIdentifierGenerator(SimpleValue.java:152)
at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:192)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1294)
at org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:915)
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:730)
… 8 more
Caused by: org.hibernate.MappingException: could not interpret id generator strategy: auto
at org.hibernate.id.IdentifierGeneratorFactory.getIdentifierGeneratorClass(IdentifierGeneratorFactory.java:109)
at org.hibernate.id.IdentifierGeneratorFactory.create(IdentifierGeneratorFactory.java:92)
… 13 more
Se alguem poder me ajudar eu agradeco…