Customer.java

package com.txtr.hibernatedelta.generator.customer2;

import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.Id;
import javax.persistence.ManyToOne;
import javax.persistence.Table;

@Table(name = "Customer")
@Entity
public class Customer {
    @Id
    private Long id;

    private String name;
    private String street;

    @ManyToOne(fetch = FetchType.LAZY, optional = false)
    private Customer catalog;

}