Hibernate Annotation Many2ManyBidirectAssociationJoin

Member

package com.todd.bean;

import java.io.Serializable;
import java.util.List;

import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.JoinTable;
import javax.persistence.ManyToMany;
import javax.persistence.OneToMany;
import javax.persistence.Table;

import org.hibernate.annotations.Cascade;


@Entity
@Table(name = "many2many_bidirect_association_join_member")
public class Many2ManyBidirectAssociationJoinMember implements Serializable{

    private int memberId;
    private String userId;
    private String userName;
    private String memberDesc;

    private List skillList;
    
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    @Column(name = "member_id")    
    public int getMemberId() {
        return memberId;
    }
    public void setMemberId(int memberId) {
        this.memberId = memberId;
    }
    
    @Column(name = "user_id")
    public String getUserId() {
        return userId;
    }
    public void setUserId(String userId) {
        this.userId = userId;
    }
    
    @Column(name = "user_name")
    public String getUserName() {
        return userName;
    }
    public void setUserName(String userName) {
        this.userName = userName;
    }
    
    @Column(name = "member_desc")
    public String getMemberDesc() {
        return memberDesc;
    }
    public void setMemberDesc(String memberDesc) {
        this.memberDesc = memberDesc;
    }
    
    //@ManyToMany(cascade = { CascadeType.PERSIST, CascadeType.MERGE })
    @ManyToMany
    @org.hibernate.annotations.Cascade( value = org.hibernate.annotations.CascadeType.SAVE_UPDATE )
    @JoinTable(name = "many2many_bidirect_association_join_member_skill",
        joinColumns = {
            @JoinColumn(name="fk_member_id")           
        },
        inverseJoinColumns = {
            @JoinColumn(name="fk_skill_id")
        }
    )
    public List getSkillList() {
        return skillList;
    }
    public void setSkillList(List skillList) {
        this.skillList = skillList;
    }
}

Skill

package com.todd.bean;

import java.io.Serializable;
import java.util.List;

import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToMany;
import javax.persistence.ManyToOne;
import javax.persistence.Table;


@Entity
@Table(name = "many2many_bidirect_association_join_skill")
public class Many2ManyBidirectAssociationJoinSkill implements Serializable{

    private int skillId;
    private String userId;
    private String skill;
    
    private List memberList;
    
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    @Column(name = "skill_id")    
    public int getSkillId() {
        return skillId;
    }
    public void setSkillId(int skillId) {
        this.skillId = skillId;
    }
    
    @Column(name = "user_id")
    public String getUserId() {
        return userId;
    }
    public void setUserId(String userId) {
        this.userId = userId;
    }

    @Column(name = "skill")
    public String getSkill() {
        return skill;
    }
    public void setSkill(String skill) {
        this.skill = skill;
    }
    
//    @ManyToMany(cascade = {CascadeType.PERSIST, CascadeType.MERGE }, mappedBy="skillList")
    @ManyToMany(mappedBy="skillList")
    @org.hibernate.annotations.Cascade( value = org.hibernate.annotations.CascadeType.SAVE_UPDATE )
    public List getMemberList() {
        return memberList;
    }
    public void setMemberList(
            List memberList) {
        this.memberList = memberList;
    }
}

Test

package com.todd.bean;

import java.util.ArrayList;
import java.util.List;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.AnnotationConfiguration;

import junit.framework.TestCase;

import com.todd.HibernateAnnotationHelper;

/**
 * 1.
 * 2.
 * @author Todd
 */
public class Many2ManyBidirectAssociationJoinMyTestCaseA extends TestCase {


    public void test(){
        
        Session session = HibernateAnnotationHelper.getSessionFactory().openSession();        
        Transaction tx = session.beginTransaction();

        List memberList = new ArrayList();
        List skillList = new ArrayList();
        
        Many2ManyBidirectAssociationJoinMember member1 = new Many2ManyBidirectAssociationJoinMember();
        member1.setUserId("ots520");
        member1.setUserName("ots520");
        member1.setMemberDesc("ots520 desc");
        memberList.add(member1);
        
        
        Many2ManyBidirectAssociationJoinMember member2 = new Many2ManyBidirectAssociationJoinMember();
        member2.setUserId("todd");
        member2.setUserName("todd name");
        member2.setMemberDesc("todd desc");
        memberList.add(member2);

        Many2ManyBidirectAssociationJoinSkill skill1 = new Many2ManyBidirectAssociationJoinSkill();
        skill1.setUserId("none");
        skill1.setSkill("skill1");
        skill1.setMemberList(memberList);
        skillList.add(skill1);
        
        Many2ManyBidirectAssociationJoinSkill skill2 = new Many2ManyBidirectAssociationJoinSkill();
        skill2.setUserId("none");
        skill2.setSkill("skill2");
        skill2.setMemberList(memberList);
        skillList.add(skill2);

        skill1.setMemberList(memberList);
        skill2.setMemberList(memberList);
        member1.setSkillList(skillList);
        member2.setSkillList(skillList);
        
        session.save(member1);
        session.save(member2);
        
        
        tx.commit();
        session.close();        
        
    }
}