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Hibernate各种映射关系总结 - 编程入门网

作者 佚名技术 来源 NET编程 浏览 发布时间 2012-06-22
mapping??PUBLIC ?? "-//Hibernate/Hibernate??Mapping??DTD??3.0//EN" ?? "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"> <hibernate-mapping??package="com.nintenyun.hibernate"> ???? <class??name="Animal"??table="t_animal"??> ?????? <id??name="id"??> ???????? <generator??class="native"/> ?????? </id> ?????? <property??name="name"/> ?????? <property??name="sex"/> ???????? <joined-subclass??name="Pig"??table="t_pig"> ?????????? <key??column="pid"/> ?????????? <property??name="weight"/> ???????? </joined-subclass> ???????? <joined-subclass??name="Bird"??table="t_bird"> ?????????? <key??column="bid"/> ?????????? <property??name="height"/> ???????? </joined-subclass> </class> </hibernate-mapping>

3 μúèyààmapping

1???ó?£Dí

2 mapping ???t

Xml′ú??

<?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.nintenyun.hibernate"> ???? <class??name="Animal"??table="t_animal"??> ?????? <id??name="id"??> ???????? <generator??class="native"/> ?????? </id> ?????? <property??name="name"/> ?????? <property??name="sex"/> ?????? <union-subclass??name="Pig"??table="t_pig"> ?????? <property??name="weight"/> ?????? </union-subclass> ?????? <union-subclass??name="Bird"??table="t_bird"> ?????? <property??name="height"/> ?????? </union-subclass> </class> </hibernate-mapping>

Hibernate各种映射关系总结(7)

时间:2010-12-14 javaeye nintenyun

6 Component 映射

component不是实体,没有OID。

1 对象模型

public class Employee private int id private String name private Contact contact ------------------------------------- public class Contact   private String email private String address private String zipcode private String contactTel ------------------------------------- public class User private int id private String name private Contact contact

2 mapping文件

Xml代码

<?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.nintenyun.hibernate">    <class name="User" table="t_user" >     <id name="id" >      <generator class="native"/>     </id>     <proper

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