<?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.model">
	<class name="User" table="tb_user">
		<id name="id">
		 <generator class="native"/>
		</id>
		<property name="Username" column="name"/>
		<property name="password"/>
		<set name="messages" cascade="save-update">
		 <key column="userId"/>
		 <one-to-many class="Messages"/>
	    </set>
	</class>
</hibernate-mapping>