Ajuda em busca personalizada

@Entity
@Table(name="PERIODODISCIPLINA")
public class PeriodoDisciplina implements Serializable {

    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Integer id;

    @Column(length=100)
    private String descricao;

    @Temporal(TemporalType.DATE)
    private Date dataInicio;

    @Temporal(TemporalType.DATE)
    private Date dataFim;

    @ManyToOne(cascade=CascadeType.ALL)
    @JoinColumn(name = "DISCIPLINA_ID")
    private Disciplina disciplina;

    @ManyToOne
    @JoinColumn(name="sala_id")
    private Sala sala;

    @ManyToOne
    @JoinColumn(name="disciplinaHorario_id")
    private DisciplinaHorario disciplinaHorario;

    @OneToOne
    @JoinColumn(name="funcionario_id")
    private Professor funcionario;

@Entity
public class Disciplina implements Serializable {
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Integer id;

    @Column(length=100)
    private String descricao;

    @OneToMany(cascade = CascadeType.ALL)
    private List<PeriodoDisciplina> periodoDisciplinas = new ArrayList<PeriodoDisciplina>();

String query = "SELECT pc " +
                " FROM PeriodoDisciplina pc " +
                "INNER JOIN pc.disciplina = :E1";

        List<PeriodoDisciplina> aux = periodoDisciplinaController.pesquisarParam(query, params);