Hibernate Map映射的composite-element案例

CREATE   TABLE  `team5` (
  `id`  varchar ( 50 )  NOT   NULL ,
  `name`  varchar ( 50 )  default   NULL ,
   PRIMARY   KEY   (`id`)
) ENGINE = InnoDB  DEFAULT  CHARSET = gb2312;

CREATE   TABLE  `teammembers` (
  `teamid`  varchar ( 50 )  NOT   NULL ,
  `name`  varchar ( 50 )  default   NULL ,
  `age`  varchar ( 50 )  default   NULL ,
  `teamrole`  varchar ( 50 )  default   NULL ,
) ENGINE = InnoDB  DEFAULT  CHARSET = gb2312;

package  compositeelement;

import  java.util.HashMap;
import  java.util.Map;
import  java.util.Set;

public   class  Member  ... {
    private  String id;
    private  String name;
    private  Team team;
    private  String age;
public  String getAge()  ... {
     return  age;
}
public   void  setAge(String age)  ... {
     this .age  =  age;
}

public  String getName()  ... {
     return  name;
}
public   void  setName(String name)  ... {
     this .name  =  name;
}


public  String getId()  ... {
     return  id;
}
public   void  setId(String id)  ... {
     this .id  =  id;
}
public  Team getTeam()  ... {
     return  team;
}
public   void  setTeam(Team team)  ... {
     this .team  =  team;
}




}


package  compositeelement;

import  java.util.HashMap;
import  java.util.Map;

public   class  Team  ... {
    private  String id;
    private  String name;
    private  Map members = new  HashMap();
public  String getId()  ... {
     return  id;
}
public   void  setId(String id)  ... {
     this .id  =  id;
}


public  Map getMembers()  ... {
     return  members;
}
public   void  setMembers(Map members)  ... {
     this .members  =  members;
}
public  String getName()  ... {
     return  name;
}
public   void  setName(String name)  ... {
     this .name  =  name;
}
}

<? xml version="1.0" encoding="utf-8" ?>
<! DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" >
<!--  
    Mapping file autogenerated by MyEclipse - Hibernate Tools
-->
< hibernate-mapping  package ="compositeelement" >
     < import  class ="Member" />
     < class  name ="Team"  table ="team5" >
        < id  name ="id"  column ="id" >
          < generator  class ="uuid.hex" ></ generator >
        </ id >
        < property  name ="name"  column ="name" />
        < map  name ="members"  table ="teammembers"   inverse ="false"   cascade ="save-update" >
           < key  column ="teamid" />
           < index  column ="teamrole"  type ="string" ></ index >
           < composite-element  class ="Member" >
              < parent  name ="team" />
              < property  name ="name" />
              < property  name ="age" ></ property >
           </ composite-element >
        </ map >
     </ class >
</ hibernate-mapping >

public   static   void  main(String[] args)  ... {
        Configuration cfg = new  Configuration();
        cfg.configure();
        SessionFactory sf = cfg.buildSessionFactory();
        Session session = sf.openSession();
        Transaction t = session.beginTransaction();

        Team team1 = new  Team();
        team1.setName( " 足球队-01 " );
    
        
        Member m1 = new  Member();
        m1.setName( " 张三 " );
        m1.setAge( " 11 " );

        
        Member m2 = new  Member();
        m2.setName( " 张四 " );
        m2.setAge( " 22 " );
        
        
        
        team1.getMembers().put( " 守门员 " , m1);
        team1.getMembers().put( " 中后卫 " , m2);


        session.save(team1);
        
        

        t.commit();
        System.out.println( " success " );

    }