Book.java

package com.querydsl.jpa.domain;

import java.io.Serializable;

import javax.persistence.*;

@Entity
@Table(name = "book_")
public class Book implements Serializable {

    private static final long serialVersionUID = -9029792723035681319L;

    @Id
    @GeneratedValue
    private Long id;

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    private String title;

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    @ManyToOne
    @JoinColumn(name = "AUTHOR_ID")
    private Author author;

    public Author getAuthor() {
        return author;
    }

    public void setAuthor(Author author) {
        this.author = author;
    }
}