모델5 @Embeddable

@Embeddable 애노테이션을 지정한 클래스를 밸류 클래스라고 합니다. 밸류 클래스란 int, double 처럼 하나의 값을 나타내는 클래스를 말합니다. 보통 주소(address)라는 값을 저장하기 위해서는 아래와 같이 String 변수에 저장하여 관리할 것입니다. 

package com.example.model.entity;

import lombok.Getter;
import lombok.Setter;
import lombok.ToString;

import javax.persistence.Embeddable;
import java.util.Objects;

@Embeddable
@Setter
@Getter
@ToString
public class Address {

    private String city;
    private String street;
    private String zipcode;

    public Address() {
    }

    public Address(String city, String street, String zipcode){
        this.city = city;
        this.street = street;
        this.zipcode = zipcode;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        Address address = (Address) o;
        return Objects.equals(city, address.city) &&
                Objects.equals(street, address.street) &&
                Objects.equals(zipcode, address.zipcode);
    }

    @Override
    public int hashCode() {
        return Objects.hash(city, street, zipcode);
    }
}

 

package com.example.model.entity;

import lombok.Getter;
import lombok.Setter;
import lombok.ToString;

import javax.persistence.*;
import java.util.ArrayList;
import java.util.List;

@Getter
@Setter
@ToString(exclude = {"orders"})
@Entity
public class Member extends BaseEntity {

    @Id
    @GeneratedValue
    @Column(name="MEMBER_ID")
    private Long id;

    private String name;

    @Embedded
    private Address address;

    @OneToMany(mappedBy = "member")
    private List<Order> orders = new ArrayList<Order>();

}