Hibernate：查询元数据 [英] Hibernate: Query Metadata

问题描述

我目前正在使用基于
a hibernate映射自动生成ExtJS表单的解决方案（我使用基于@Annotations的hibernate逆向工程）。

Hibernate有一个

  getPropertiesInterator（）
  

http://docs.jboss.org/hibernate/core/3.5/api/org/hibernate/mapping/PersistentClass.html#getPropertyIterator%28%29

功能。这可以像这样访问

 （（LocalSessionFactoryBean）sessionFactory）.getConfiguration（）。getClassMapping（< Classname> .class.getName （））
  

其中列出了表的属性。我使用这些信息来生成ExtJS输入

varchar => input
text => textarea
etc。

我的问题是，如果有可能有另一种（也许更好）的方法来获取我的休眠配置中的信息？

/ p>

JS

解决方案

我最后使用

  ClassMetadata hibernateMetadata = session.getSessionFactory（）。getClassMetadata（fullClassName）; 
  

要通过 [String]获取MetaData ClassName或$ code> Class.class

有了这些信息，你可以这样做...

  String [] propertyNames = hibernateMetadata.getPropertyNames（）; 
 Type [] propertyTypes = hibernateMetadata.getPropertyTypes（）; 
  

稍后再分析此信息。

请参阅

http://docs.jboss.org/hibernate/core/3.5/api/org/hibernate/SessionFactory.html#getClassMetadata%28java.lang.String%29

了解更多信息。

Hibernate在他们的文档中甚至有一个例子...

http://docs.jboss.org/hibernate/orm/3.3/reference/en/html/objectstate.html#objectstate-metadata

I'm currently working on a solution to automatically generate ExtJS forms based on a hibernate mapping (I use hibernate reverse engineering for that based on @Annotations).

Hibernate has a

getPropertiesInterator() 

http://docs.jboss.org/hibernate/core/3.5/api/org/hibernate/mapping/PersistentClass.html#getPropertyIterator%28%29

funciton for that. Which is accessible like this

((LocalSessionFactoryBean)sessionFactory).getConfiguration().getClassMapping(<Classname>.class.getName())

Which lists the properties of the table. I use this information to generate ExtJS inputs out of it

varchar => input text => textarea etc.

My question is, if there is maybe another (maybe better) way to get this information out of my hibernate configuration?

Regards

JS

解决方案

I ended up using

ClassMetadata hibernateMetadata = session.getSessionFactory().getClassMetadata(fullClassName);

To get the MetaData either by [String] ClassName or by Class.class

With this information you can do something like this...

String[] propertyNames = hibernateMetadata.getPropertyNames();
Type[] propertyTypes = hibernateMetadata.getPropertyTypes();

And pars this information later on.

See

http://docs.jboss.org/hibernate/core/3.5/api/org/hibernate/SessionFactory.html#getClassMetadata%28java.lang.String%29

for more information.

Hibernate has even an example for this in their docs...

http://docs.jboss.org/hibernate/orm/3.3/reference/en/html/objectstate.html#objectstate-metadata

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