MiddleGen provides a way to generate database access classes from the database itself.
MiddleGen提供了一种从数据库本身来生成数据库访问类的方法。
Emmanuel said that JPA 2.0 framework could use the bean validation framework to generate database constraints based on the bean constraint annotations.
Emmanuel说到,JPA 2.0框架可以使用bean校验框架基于bean的约束注解来产生数据库约束。
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