package org.hibernate.test.bytecode.enhancement.join; import java.io.Serializable; import javax.persistence.Entity; import javax.persistence.FetchType; import javax.persistence.GeneratedValue; import javax.persistence.Id; import javax.persistence.OneToOne; @Entity public class Vehicle implements Serializable { @Id @GeneratedValue private Integer id; private String name; @OneToOne(optional = true, fetch = FetchType.LAZY) private Person driver; public Integer getId() { return id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public Person getDriver() { return driver; } public void setDriver(Person driver) { this.driver = driver; } public Vehicle() { } public Vehicle(String name) { this.name = name; } }