Entity One-to-One 雙向關聯

Customer.java

package javaee6.entities;

import java.util.Date;

import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.NamedQuery;
import javax.persistence.OneToOne;
import javax.persistence.Temporal;
import javax.persistence.TemporalType;
import javax.persistence.Transient;

@Entity
public class Customer {

	private Long id;
	private String firstName;
	private String lastName;
	private String email;
	private String phoneNumber;
	private Date dateOfBirth;
	private Integer age;
	private Address address;
	private Date creationDate;
	
	@Id @GeneratedValue
	public Long getId() {
		return id;
	}
	public void setId(Long id) {
		this.id = id;
	}
	
	@Column(name = "first_name", nullable = false, length = 50)
	public String getFirstName() {
		return firstName;
	}
	public void setFirstName(String firstName) {
		this.firstName = firstName;
	}
	
	@Column(name = "last_name", nullable = false, length = 50)
	public String getLastName() {
		return lastName;
	}
	public void setLastName(String lastName) {
		this.lastName = lastName;
	}
	
	public String getEmail() {
		return email;
	}
	public void setEmail(String email) {
		this.email = email;
	}
	
	@Column(name = "phone_number", length = 15)
	public String getPhoneNumber() {
		return phoneNumber;
	}
	public void setPhoneNumber(String phoneNumber) {
		this.phoneNumber = phoneNumber;
	}
	
	@Temporal(TemporalType.DATE)
	public Date getDateOfBirth() {
		return dateOfBirth;
	}
	public void setDateOfBirth(Date dateOfBirth) {
		this.dateOfBirth = dateOfBirth;
	}
	
	@Transient
	public Integer getAge() {
		return age;
	}
	public void setAge(Integer age) {
		this.age = age;
	}
	
	@Temporal(TemporalType.TIMESTAMP)
	public Date getCreationDate() {
		return creationDate;
	}
	public void setCreationDate(Date creationDate) {
		this.creationDate = creationDate;
	}
	
	@OneToOne(cascade = {CascadeType.PERSIST, CascadeType.MERGE, CascadeType.REFRESH})
	@JoinColumn(name = "address_fk")
	public Address getAddress() {
		return address;
	}
	public void setAddress(Address address) {
		this.address = address;
	}
}

 

Address.java

package javaee6.entities;

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

@Entity
public class Address {

	private Long id;
	private String street1;
	private String street2;
	private String city;
	private String state;
	private String zipcode;
	private String country;
	private Customer customer;
	public Address() {}
	public Address(String street1, String street2, String city, String state, String zipcode, String country) {
		super();
		this.street1 = street1;
		this.street2 = street2;
		this.city = city;
		this.state = state;
		this.zipcode = zipcode;
		this.country = country;
	}

	@Id @GeneratedValue
	public Long getId() {
		return id;
	}
	public void setId(Long id) {
		this.id = id;
	}
	
	@Column(nullable = false)
	public String getStreet1() {
		return street1;
	}
	public void setStreet1(String street1) {
		this.street1 = street1;
	}
	public String getStreet2() {
		return street2;
	}
	public void setStreet2(String street2) {
		this.street2 = street2;
	}
	
	@Column(nullable = false, length = 50)
	public String getCity() {
		return city;
	}
	public void setCity(String city) {
		this.city = city;
	}
	
	@Column(length = 3)
	public String getState() {
		return state;
	}
	public void setState(String state) {
		this.state = state;
	}
	
	@Column(name = "zip_code", length = 10)
	public String getZipcode() {
		return zipcode;
	}
	public void setZipcode(String zipcode) {
		this.zipcode = zipcode;
	}
	public String getCountry() {
		return country;
	}
	public void setCountry(String country) {
		this.country = country;
	}
	
	@OneToOne(mappedBy = "address")
	public Customer getCustomer() {
		return customer;
	}
	public void setCustomer(Customer customer) {
		this.customer = customer;
	}
}