Hibernate级联操作Cascade学之---delete

create   table  student(id  varchar ( 32 )  primary   key ,
                     team_id  varchar ( 32 ),
                     name  varchar ( 32 ),
                     cardid  varchar ( 32 ),
                     age  int );

create   table  team(id  varchar ( 32 )  primary   key ,
                  team_id  varchar ( 32 ),
                  teamname  varchar ( 32 ));

                         
insert   into  team  values (" 1 "," 1 ","team1");
insert   into  student  values (" 1 "," 1 ","stu1"," 20070101 ", 22 );
insert   into  student  values (" 2 "," 1 ","stu2"," 20070102 ", 23 );

package  Cascade.saveUpdate;


public   class  Student  ... {
   private  String id;
   private  String cardid;
   private  String name;
   private   int  age;
   private  Team team;
public  String getId()  ... {
     return  id;
}
public   void  setId(String id)  ... {
     this .id  =  id;
}
public  String getCardid()  ... {
     return  cardid;
}
public   void  setCardid(String cardid)  ... {
     this .cardid  =  cardid;
}
public  String getName()  ... {
     return  name;
}
public   void  setName(String name)  ... {
     this .name  =  name;
}
public   int  getAge()  ... {
     return  age;
}
public   void  setAge( int  age)  ... {
     this .age  =  age;
}

public  Team getTeam()  ... {
     return  team;
}
public   void  setTeam(Team team)  ... {
     this .team  =  team;
}
}


package  Cascade.saveUpdate;


import  java.util.HashSet;
import  java.util.Set;

public   class  Team  ... {
    private  String id;
    private  Set students = new  HashSet();
    private  String teamName;
public  String getId()  ... {
     return  id;
}
public   void  setId(String id)  ... {
     this .id  =  id;
}
public  Set getStudents()  ... {
     return  students;
}
public   void  setStudents(Set students)  ... {
     this .students  =  students;
}
public  String getTeamName()  ... {
     return  teamName;
}
public   void  setTeamName(String teamName)  ... {
     this .teamName  =  teamName;
}


}

<? xml version='1.0' encoding='UTF-8' ?>
<! DOCTYPE hibernate-configuration PUBLIC
          "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
          "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd" >

<!--  Generated by MyEclipse Hibernate Tools.                    -->
< hibernate-configuration >

< session-factory >
     < property  name ="connection.username" > root </ property >
     < property  name ="connection.url" >
        jdbc:mysql://localhost:3306/schoolproject?characterEncoding=gb2312 &amp; useUnicode=true
     </ property >
     < property  name ="dialect" >
        org.hibernate.dialect.MySQLDialect
     </ property >
     < property  name ="myeclipse.connection.profile" > mysql </ property >
     < property  name ="connection.password" > 1234 </ property >
     < property  name ="connection.driver_class" >
        com.mysql.jdbc.Driver
     </ property >
     < property  name ="hibernate.dialect" >
        org.hibernate.dialect.MySQLDialect
     </ property >
     < property  name ="hibernate.show_sql" > true </ property >
     < property  name ="current_session_context_class" > thread </ property >
     < property  name ="jdbc.batch_size" > 15 </ property >
     < mapping  resource ="Cascade/delete/Student.hbm.xml"   />
     < mapping  resource ="Cascade/delete/Team.hbm.xml"   />



</ session-factory >

</ hibernate-configuration >

<? 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 >
< class  name ="Cascade.delete.Student"  table ="student" >
   < id  name ="id"  unsaved-value ="null" >
     < generator  class ="uuid.hex" ></ generator >
   </ id >
   < property  name ="cardid"  type ="string" />
   < property  name ="name"  type ="string" />
   < property  name ="age"  type ="int" />
   < many-to-one  name ="team"  
               column ="team_id"
               class ="Cascade.delete.Team"
               lazy ="no-proxy" >
   </ many-to-one >
</ class >

</ hibernate-mapping >

<? 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 >
< class  name ="Cascade.delete.Team"  table ="team"  lazy ="true" >
        < id  name ="id"  column ="id" >
          < generator  class ="uuid.hex" ></ generator >
        </ id >