如何在Hibernate中通过注释以编程方式验证数据库模式？

似乎org.hibernate.cfg.Configuration对象可以用于通过调用validateSchema方法以编程方式执行验证。但是，此方法需要dialect和databaseMetadata对象。我正在使用Spring，我可以从Spring上下文中获取AnnotationSessionFactoryBean对象。到目前为止，我有以下代码：如何在Hibernate中通过注释以编程方式验证数据库模式？

AnnotationSessionFactoryBean factory = null; 
    factory = (AnnotationSessionFactoryBean) context.getBean("AnnotationSessionFactory"); 
    Configuration configuration = factory.getConfiguration(); 

    //the following line does not work, ConnectionHelper hierarchy is not visible outside the package 
    ConnectionHelper connectionHelper = 
    new ManagedConnectionProviderConnectionHelper(factory.getHibernateProperties()); 

    Dialect dialect = Dialect.getDialect(factory.getHibernateProperties()); 
    Connection connection = null; 
    DatabaseMetadata databaseMetadata = null; 
    try { 
     databaseMetadata = new DatabaseMetadata(connection, dialect); 
    } catch (SQLException e) { 
     // TODO Auto-generated catch block 
     e.printStackTrace(); 
    } 
    configuration.validateSchema(dialect, databaseMetadata);

我在正确的轨道上？ ConnectionHelper层次结构在包外不可见，所以我无法以这种方式获取连接对象，以便构建数据库元数据。我怎样才能实现这个？编辑：我想我已经取得了一些进展。有一个SchemaValidator类。现在，该代码如下所示：

AnnotationSessionFactoryBean factory = context.getBean("&AnnotationSessionFactory"); 
Configuration configuration = factory.getConfiguration();  
SchemaValidator validator = new SchemaValidator(configuration); 
validator.validate();

Howerver，现在我收到以下错误：

org.hibernate.HibernateException：发现配置没有本地数据源 - “数据源”属性必须在LocalSessionFactoryBean的设置

来源

2010-02-24 Dan

最后，当使用Spring时，这并不那么简单。我设法做到这一点扩展这样的AnnotationSessionFactoryBean：

public class SchemaValidatingAnnotationSessionFactoryBean extends 
    AnnotationSessionFactoryBean { 

public void validateDatabaseSchema() throws DataAccessException { 
    logger.info("Validating database schema for Hibernate SessionFactory"); 
    HibernateTemplate hibernateTemplate = new HibernateTemplate(
      getSessionFactory()); 
    hibernateTemplate.setFlushMode(HibernateTemplate.FLUSH_NEVER); 
    hibernateTemplate.execute(new HibernateCallback() { 
     public Object doInHibernate(Session session) 
       throws HibernateException, SQLException { 
      Connection con = session.connection(); 
      Dialect dialect = Dialect.getDialect(getConfiguration() 
        .getProperties()); 
      DatabaseMetadata metadata = new DatabaseMetadata(con, dialect); 
      Configuration configuration = getConfiguration(); 
      configuration.validateSchema(dialect, metadata); 
      return null; 
     } 
    }); 

} 
}

来源

2010-02-26 15:55:57 Dan

我已经找到了调用Hibernate映射验证一个简单的解决方案，对我的作品：LocalSessionFactoryBean.validateDatabaseSchema（）（有效地做同样的事情作为代码在丹的答案上面）

@RunWith(SpringJUnit4ClassRunner.class) 
@ContextConfiguration(locations = { "/some-test-context.xml" }) 
public class TestMapping { 

    @Autowired 
    ApplicationContext context; 

    @Test 
    public void validateSchema() { 
     AnnotationSessionFactoryBean factory = (AnnotationSessionFactoryBean)context 
       .getBean("&mySessionFactory"); 
     factory.validateDatabaseSchema(); 
    } 
}

来源

2012-01-19 14:16:57

如何在Hibernate中通过注释以编程方式验证数据库模式？

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