select distinct o from DonglePoint  o   where  o.donglePointPK.chassis  = :chassis and  o.donglePointPK.timestamp  between :timestamp1 and :timestamp2 order by o.donglePointPK.timestamp

final Query query = this.entityManager.createQuery(filter);

EJBQueryImpl(ReadAllQuery(referenceClass=DonglePoint sql="SELECT DISTINCT HEADING, PLACA, VELOCIDADE, TIMESTAMP, NUM_CHASSIS, NR_LAT, NR_LNG, TIMESTAMP FROM VEICULO_POSICAO_DONGLE WHERE ((NUM_CHASSIS = ?) AND (TIMESTAMP BETWEEN ? AND ?)) ORDER BY TIMESTAMP ASC"))

@Entity
@NamedQuery(name = "findDonglePointsWithinRange", query = "SELECT dp FROM DonglePoint dp WHERE dp.donglePointPK.chassis = :chassis and dp.donglePointPK.timestamp BETWEEN :ini AND :final order by dp.donglePointPK.timestamp")
@Table(name = "VEICULO_POSICAO_DONGLE")
public class DonglePoint implements Serializable {

	private static final long	serialVersionUID	= -7456971713605400889L;

	public static final int		LAT_LNG_SCALE		= 6;

	public static final int		CHASSIS_LENGTH		= 17;
	public static final int		PLATE_LENGTH		= 10;

	public static final int		SPEED_PRECISION		= 9;
	public static final int		HEADING_PRECISION	= 9;

	@Column(name = "HEADING", length = DonglePoint.HEADING_PRECISION)
	private BigDecimal			heading;

	@Embedded
	private Position			position;

	@EmbeddedId
	private DonglePointPK donglePointPK;

	@Column(name = "PLACA", nullable = false, length = DonglePoint.PLATE_LENGTH)
	private String				plate;

	@Column(name = "VELOCIDADE", length = DonglePoint.SPEED_PRECISION)
	private BigDecimal			speed;

	public DonglePoint() {
		super();
		this.position 		= new Position();
		this.donglePointPK 	= new DonglePointPK();
	}

	/* GETs and SETs */
}

@Embeddable
public class Position {

	public static final int LATITUDE 	= 1;
	public static final int LONGITUDE 	= 2;

	public static final int LATITUDE_PRECISION 	= 9;
	public static final int LONGITUDE_PRECISION = 9;

	@Column(name = "NR_LAT", precision = Position.LATITUDE_PRECISION)
	private String latitude;

	@Column(name = "NR_LNG", precision = Position.LONGITUDE_PRECISION)
	private String longitude;

	public Position() {
		super();
	}

	public Position(final Position position) {
		super();
		this.latitude 	= position.getLatitude();
		this.longitude 	= position.getLongitude();
	}

	public Position(final BigDecimal latitude, final BigDecimal longitude) throws NullPointerException {
		this.latitude  = latitude.toString();
		this.longitude = longitude.toString();
	}

	public Position(final String latitude, final String longitude) {
		this.latitude  = latitude;
		this.longitude = longitude;
	}

        /* GETs and SETs */
}

@Embeddable
public class DonglePointPK implements Serializable {

	private static final long serialVersionUID = 5093736875260224632L;

	@Column(name = "NUM_CHASSIS", nullable = false, length = DonglePoint.CHASSIS_LENGTH)
	private String				chassis;

	@Column(name = "TIMESTAMP", nullable = false)
	private Timestamp			timestamp;

        /* GETs and SETs */
}