11、基于annotation的onetoone的配置

基于annotation的onetoone的配置

IDCard.java

package org.zttc.itat.model;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.OneToOne;
import javax.persistence.Table;

@Entity
@Table(name="t_id_card")
public class IDCard {
    private int id;
    private String no;
    private Person person;
    
    @Id
    @GeneratedValue
    public int getId() {
        return id;
    }
    public void setId(int id) {
        this.id = id;
    }
    public String getNo() {
        return no;
    }
    public void setNo(String no) {
        this.no = no;
    }
    @OneToOne
    @JoinColumn(name="pid")
    public Person getPerson() {
        return person;
    }
    public void setPerson(Person person) {
        this.person = person;
    }
}

Person.java

package org.zttc.itat.model;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.OneToOne;
import javax.persistence.Table;

@Entity
@Table(name="t_person")
public class Person {
    private int id;
    private String name;
    private IDCard idCard;
    
    @OneToOne(mappedBy="person")
    public IDCard getIdCard() {
        return idCard;
    }
    public void setIdCard(IDCard idCard) {
        this.idCard = idCard;
    }
    
    @Id
    @GeneratedValue
    public int getId() {
        return id;
    }
    public void setId(int id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
}