Hibernate Annotation One2OneUnidirectAssociationPk

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.Id;
import javax.persistence.OneToMany;
import javax.persistence.OneToOne;
import javax.persistence.PrimaryKeyJoinColumn;
import javax.persistence.Table;


@Entity
@Table(name = "one2one_unidirect_association_pk_member")
public class One2OneUnidirectAssociationPkMember implements Serializable{

    private String user_id;
    private String user_name;
    private String member_desc;
    
    private One2OneUnidirectAssociationPkSkill skill;
    
    @Id
    @Column(name = "user_id")
    public String getUser_id() {
        return user_id;
    }
    public void setUser_id(String user_id) {
        this.user_id = user_id;
    }

    @Column(name = "user_name")
    public String getUser_name() {
        return user_name;
    }
    public void setUser_name(String user_name) {
        this.user_name = user_name;
    }

    @Column(name = "member_desc")
    public String getMember_desc() {
        return member_desc;
    }
    public void setMember_desc(String member_desc) {
        this.member_desc = member_desc;
    }
    
    @OneToOne
    @PrimaryKeyJoinColumn
    public One2OneUnidirectAssociationPkSkill getSkill() {
        return skill;
    }
    public void setSkill(One2OneUnidirectAssociationPkSkill skill) {
        this.skill = skill;
    }


}

Skill

package com.todd.bean;

import java.io.Serializable;

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.ManyToOne;
import javax.persistence.Table;


@Entity
@Table(name = "one2one_unidirect_association_pk_skill")
public class One2OneUnidirectAssociationPkSkill implements Serializable{

    private String user_id;
    private String skill;
    
    @Id
    @Column(name = "user_id")
    public String getUser_id() {
        return user_id;
    }
    public void setUser_id(String user_id) {
        this.user_id = user_id;
    }
    
    @Column(name = "skill")
    public String getSkill() {
        return skill;
    }
    public void setSkill(String skill) {
        this.skill = skill;
    }
    

    
}

Test

package com.todd.bean;

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.讓主鍵對映就行
 * @author Todd
 */
public class One2OneUnidirectAssociationPkMyTestCaseA extends TestCase {


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

        One2OneUnidirectAssociationPkMember member = new One2OneUnidirectAssociationPkMember();
        member.setUser_id("ots520");
        member.setUser_name("ots520");
        member.setMember_desc("ots520 desc");
        
        One2OneUnidirectAssociationPkSkill skill = new One2OneUnidirectAssociationPkSkill();
        skill.setUser_id("ots520");
        skill.setSkill("ass");
        member.setSkill(skill);
        
        session.save(member);
        session.save(skill);
        
        One2OneUnidirectAssociationPkMember pkMember = (One2OneUnidirectAssociationPkMember) session.get(One2OneUnidirectAssociationPkMember.class, "ots520");
        System.out.println("member desc =" + pkMember.getMember_desc());
        
        
        tx.commit();
        session.close();        
        
    }
    


}