<one-to-one name="iUser" constrained="true"></one-to-one> 的含义
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<one-to-one name="iUser" constrained="true"></one-to-one>
就是 这个类的 主键参考了 IUser类，这里iuser实施外键。例如，icard 完全参考了 iuser，作为外键和主键。constrained是约束
<?xml version="1.0"?><!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"><hibernate-mapping package="com.sm.hibernate.pojo"><class name="ICard" table="icard"><id name="id"><generator class="foreign"><param name="property">iUser</param></generator></id><property name="name" not-null ="true"></property><one-to-one name="iUser" constrained="true"></one-to-one> </class></hibernate-mapping>
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