hibernate关联映射中的组件映射

*********************

Name.java

*********************

package blog.hibernate.domain;

public class Name {
private String firstName;
private String lastName;

public String getFirstName() {
return firstName;
}
public void setFirstName(String fristName) {
this.firstName = fristName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
}

******************

EnglishMan.java

*****************

package blog.hibernate.domain;

public class EnglishMan {
private Name name;
private int id;

public Name getName() {
return name;
}
public void setName(Name name) {
this.name = name;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
}

****************

EnglishMan.hbm.xml

***************

<?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="blog.hibernate.domain">
<class name="EnglishMan" table="EnglishMan">
<id name="id" column="ID">
<generator class="native"></generator>
</id>

<component name="name" class="Name">
<property name="firstName" column="FIRSTNAME"></property>
<property name="lastName" column="LASTNAME"></property>
</component>
</class>
</hibernate-mapping>

****************

junit test

***************

package junit.test;

import org.junit.BeforeClass;
import org.junit.Test;

import blog.hibernate.HibernateUtil;
import blog.hibernate.domain.EnglishMan;
import blog.hibernate.domain.Name;

public class MyComponent {

@BeforeClass
public static void setUpBeforeClass() throws Exception {
}

@Test
public void add(){
Name name = new Name();
name.setFirstName("Wang");
name.setLastName("li");

EnglishMan englishMan = new EnglishMan();
englishMan.setName(name);

try {
HibernateUtil.add(englishMan);
} catch (Exception e) {
e.printStackTrace();
}
}
}

说明：组件映射可以将组件和主对像放在一个表里。