读Hibernate in action中发现了一段关于持久层的阐述，有些疑惑。 Persistence layer―The persistence layer is a group of classes and components responsible for data storage to, and retrieval from, one or more data stores. This layer necessarily includes a model of the business domain entities (even if it’s only a metadata model). 疑惑在于域模型和域实体这两个概念上，实体似乎只是一个数据表达（metadata），不知道理解对否
注册
登陆
返回本主题
返回页首
.text:''):(d.getSelection?d.getSelection():'');void(keyit=window.open('http://my.poco.cn/fav/storeIt.php?t='+escape(d.title)+'&u='+escape(d.location.href)+'&c='+escape(t)+'&img=http://www.h-strong.com/blog/logo.gif','keyit','scrollbars=no,width=475,height=575,status=no,resizable=yes'));keyit.focus();){kind=logo}
