@Skipserialization

Question

I’m having a problem serializing my classes. I have a circular reference problem, so I’m trying to treat this by adding the @Skipserialization annotation to the class to prevent it from being serialized. However, this does not seem to be working. I am using vRaptor4, which uses Gson to serialize.

This is my structure:

public class GrupoCampoBean implements Serializable {

    private final List<GrupoCampo> grupoCampos;

    public GrupoCampoBean(List<GrupoCampo> gruposCampos) {
        this.grupoCampos = gruposCampos;
    }
}

My main entity:

@Entity
@Table(name = "tb_grupo_campo")
public class GrupoCampo implements Serializable {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Basic(optional = false)
    @Column(name = "id", nullable = false)
    private Integer id;

    @Basic(optional = false)
    @Column(nullable = false)
    @Temporal(TemporalType.TIMESTAMP)
    private Date created;

    @OneToMany(mappedBy = "grupoCampo")
    private List<GrupoCampoContextoPropriedade> contextos;

}

Entity Grouplocation Contextproperty which has circular reference

@Entity
@Table(name = "tb_grupo_campo_contexto_propriedade")
public class GrupoCampoContextoPropriedade implements Serializable {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Basic(optional = false)
    @Column(nullable = false)
    private Integer id;

    @Basic(optional = false)
    @Column(name = "visivel_listagem", nullable = false)
    private Boolean visivelListagem;

    @Basic(optional = false)
    @Column(nullable = false)
    private Boolean obrigatorio;

    @Basic(optional = false)
    @Column(name = "visivel_filtro", nullable = false)
    private Boolean visivelFiltro;

    @JoinColumn(name = "cod_contexto", referencedColumnName = "id")
    @ManyToOne(optional = false)
    private Contexto contexto;

    **@SkipSerialization**
    @JoinColumn(name = "cod_grupo_campo", referencedColumnName = "id")
    @ManyToOne(optional = false)
    private GrupoCampo grupoCampo;
}

After performing a query, I pass the List to the serialization method:

@Path("/{modulo}/grupo-campos")
public void getGrupoCampos(String modulo, String contexto) {
    try {
        toJson(grupoCampoService.getGrupoCamposModulo(getCliente(), modulo, contexto));
    } catch (MurphException ex) {
        tratarException(ex);
    }
}

Finally, to serialize I use the following:

protected void toJson(Object object, String... exclude) {
    result.use(json()).withoutRoot().from(object).recursive().exclude(exclude).serialize();
}

I also tried using @Xmltransient, but it didn’t work.

Personal thank you.