Hibernate 配置组合唯一键

 

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- Generated 2011-12-31 9:56:49 by Hibernate Tools 3.2.1.GA -->
<hibernate-mapping>
    <class name="com.test.domain.Usb" table="usb" catalog="roletest">
        <id name="id" type="java.lang.Integer">
            <column name="id" />
            <generator class="identity" />
        </id>
        <!--配置组合唯一键  properties 中的name 没有什么意义 -->
        <properties name="usb" unique="true">
            <property name="sex" />
            <property name="name" />
        </properties>
        <property name="address" type="string">
            <column name="address" />
        </property>
        <property name="age" type="string">
            <column name="age" />
        </property>
       
    </class>
</hibernate-mapping>