Hibernate 관련 맵 - one to many 외부 키 단 방향 연결

package pack.java.test;
import java.io.Serializable;
import java.util.Set;
import org.hibernate.Session;
import pack.java.hibernate.HibernateSessionFactory;
import pack.java.model.Address_One_to_Many;
import pack.java.model.Person_One_to_Many;
/**
 * 
 * Hibernate    ;          ;
 * @author ZhouHaiTao
 *
 */
public class HibernateDemoOneToMany {
	public static void main(String[] args) {
		HibernateDemoOneToMany hibernateDemoOneToMany = new HibernateDemoOneToMany();
		//    ;
		hibernateDemoOneToMany.saveAddress();
		
		//    ;
		hibernateDemoOneToMany.savePerson();
		
		//  Person id  person；
		hibernateDemoOneToMany.loadPersonByID(1);
	}
	
	/**
	 *   Address  ;
	 */
	private void saveAddress(){
		Session session = getSession();
		Address_One_to_Many address1 = new Address_One_to_Many();
		address1.setAddressDetail("      ");
	
		Address_One_to_Many address2 = new Address_One_to_Many();
		address2.setAddressDetail("      ");
		
		Address_One_to_Many address3 = new Address_One_to_Many();
		address3.setAddressDetail("      ");
		
		//    ;
		session.beginTransaction().begin();
		//      ;
		session.save(address1);
		session.save(address2);
		session.save(address3);
		//    ;
		session.beginTransaction().commit();
		
		//  session;
		closeSession(session);
	}
	
	/**
	 *   Person,   Person      ;
	 */
	private void savePerson(){
		//  session;
		Session session = getSession();
		Person_One_to_Many person1 = new Person_One_to_Many("  ",23);
		Person_One_to_Many person2 = new Person_One_to_Many("  ",23);
		
		Address_One_to_Many address1 = new Address_One_to_Many();
		address1.setAddressDetail("      ");
	
		Address_One_to_Many address2 = new Address_One_to_Many();
		address2.setAddressDetail("      ");
		
		Address_One_to_Many address3 = new Address_One_to_Many();
		address3.setAddressDetail("      ");
		
		session.beginTransaction().begin();
		
		//   person1        ;
		person1.getSetAddress().add(address1);
		person1.getSetAddress().add(address2);
		
		// person2  ，      ;
		person2.getSetAddress().add(address3);
		session.save(person1);
		session.save(person2);
		session.beginTransaction().commit();
		
		//  session;
		closeSession(session);
	}
	
	
	/**
	 *   person id   ，person  ，    ;
	 * @param id
	 */
	private void loadPersonByID(Serializable id){
		Session session = getSession();
		Person_One_to_Many personOneToMany = (Person_One_to_Many) session.load(Person_One_to_Many.class, id);
		System.out.println("   Person      :");
		System.out.println(personOneToMany.getId()+","+personOneToMany.getName()+","+personOneToMany.getAge());
		Set<Address_One_to_Many> addressOneToManies = personOneToMany.getSetAddress();
		
		System.out.println("
   Address    :");
		for(Address_One_to_Many  addressOneToMany : addressOneToManies){
			System.out.println(addressOneToMany.getAddressID()+","+addressOneToMany.getAddressDetail());
		}
		closeSession(session);
	}
	
	/**
	 *   session;
	 * @return
	 */
	private static Session getSession(){
		return HibernateSessionFactory.getSession();
	}
	
	/**
	 *   session;
	 * @return
	 */
	private static void closeSession(Session session){
		session.close();
	}
}