摘要：
在Session的缓存中存放的是相互关联的对象图。默认情况下，当Hibernate从数据库中加载Customer对象时，会同时加载所有关联的 Order对象。以Customer和Order类为例，假定ORDERS表的CUSTOMER_ID外键允许为null以下Session的find()方法用于到数据库中检索所有的Customer对象：List customerLists=session.find("from Customer as c");运行以上find()方法时，Hibernate将先查询CUSTOMERS表中所有的记录，然后根据每条记录的ID，到ORDERS表中查询 阅读全文
摘要：
From：http://www.javalobby.org/java/forums/t20533.htmlOne of the potential problems with object/relational mapping is that a lot of work has to be done to convert relational results into object results. Because of the nature of an object-level querying and criteria system, the results returned by a q 阅读全文