package com.roshka.modelo; import com.fasterxml.jackson.annotation.JsonManagedReference; import javax.persistence.*; import javax.validation.constraints.NotBlank; import java.util.List; @Entity @Table(name = "institucion") public class Institucion { @Id @Column(name = "id") private long id; @Column(name = "nombre") @NotBlank private String nombre; //Facultades @Column(name = "sub_nombre") private String subNombre; @OneToMany(cascade = CascadeType.PERSIST, mappedBy = "institucion", fetch = FetchType.LAZY) @JsonManagedReference private List estudioList; }