Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package gt.entities; import javax.persistence.Column; import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.GenerationType; import javax.persistence.Id; import javax.persistence.JoinColumn; import javax.persistence.ManyToOne; import javax.persistence.Table; import org.hibernate.annotations.Cascade; import org.hibernate.annotations.CascadeType; /** * * @author Dario Calderon */ @Entity @Table(name = "CITY") public class City implements java.io.Serializable { private Long idCity; private String txtName; private State state; public City() { } public City(Long idCity) { this.idCity = idCity; } @Id @GeneratedValue(strategy = GenerationType.AUTO) @Column(name = "idCity", unique = true, nullable = false) public Long getIdCity() { return idCity; } public void setIdCity(Long idCity) { this.idCity = idCity; } @Column(name = "txtName", nullable = false) public String getTxtName() { return txtName; } public void setTxtName(String txtName) { this.txtName = txtName; } @ManyToOne @JoinColumn(name = "idState", referencedColumnName = "idState", nullable = false) @Cascade(CascadeType.PERSIST) public State getState() { return state; } public void setState(State state) { this.state = state; } }