/*
    * This class is an auto-generated source file for a HAPI
    * HL7 v2.x standard structure class.
    *
    * For more information, visit: http://hl7api.sourceforge.net/
    * 
    * The contents of this file are subject to the Mozilla Public License Version 1.1 
    * (the "License"); you may not use this file except in compliance with the License. 
    * You may obtain a copy of the License at http://www.mozilla.org/MPL/ 
   * Software distributed under the License is distributed on an "AS IS" basis, 
   * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for the 
   * specific language governing rights and limitations under the License. 
   * 
   * The Original Code is "[file_name]".  Description: 
   * "[one_line_description]" 
   * 
   * The Initial Developer of the Original Code is University Health Network. Copyright (C) 
   * 2012.  All Rights Reserved. 
   * 
   * Contributor(s): ______________________________________. 
   * 
   * Alternatively, the contents of this file may be used under the terms of the 
   * GNU General Public License (the  "GPL"), in which case the provisions of the GPL are 
   * applicable instead of those above.  If you wish to allow use of your version of this 
   * file only under the terms of the GPL and not to allow others to use your version 
   * of this file under the MPL, indicate your decision by deleting  the provisions above 
   * and replace  them with the notice and other provisions required by the GPL License.  
   * If you do not delete the provisions above, a recipient may use your version of 
   * this file under either the MPL or the GPL. 
   * 
   */
  
  
  package ca.uhn.hl7v2.model.v23.segment;
  
  // import ca.uhn.hl7v2.model.v23.group.*;
  import ca.uhn.hl7v2.model.v23.datatype.*;
  import ca.uhn.hl7v2.HL7Exception;
  import ca.uhn.hl7v2.parser.ModelClassFactory;
  import ca.uhn.hl7v2.parser.DefaultModelClassFactory;
  import ca.uhn.hl7v2.model.AbstractMessage;
  import ca.uhn.hl7v2.model.Group;
  import ca.uhn.hl7v2.model.Type;
  import ca.uhn.hl7v2.model.AbstractSegment;
  import ca.uhn.hl7v2.model.Varies;
  
  
  /**
   *<p>Represents an HL7 ARQ message segment (Appointment Request). 
   * This segment has the following fields:</p>
   * <ul>
       * <li>ARQ-1: Placer Appointment ID (EI) <b> </b>
       * <li>ARQ-2: Filler Appointment ID (EI) <b>optional </b>
       * <li>ARQ-3: Occurrence Number (NM) <b>optional </b>
       * <li>ARQ-4: Placer Group Number (EI) <b>optional </b>
       * <li>ARQ-5: Schedule ID (CE) <b>optional </b>
       * <li>ARQ-6: Request Event Reason (CE) <b>optional </b>
       * <li>ARQ-7: Appointment Reason (CE) <b>optional </b>
       * <li>ARQ-8: Appointment Type (CE) <b>optional </b>
       * <li>ARQ-9: Appointment Duration (NM) <b>optional </b>
       * <li>ARQ-10: Appointment Duration Units (CE) <b>optional </b>
       * <li>ARQ-11: Requested Start Date/Time Range (DR) <b>optional repeating</b>
       * <li>ARQ-12: Priority (ST) <b>optional </b>
       * <li>ARQ-13: Repeating Interval (RI) <b>optional </b>
       * <li>ARQ-14: Repeating Interval Duration (ST) <b>optional </b>
       * <li>ARQ-15: Placer Contact Person (XCN) <b>optional </b>
       * <li>ARQ-16: Placer Contact Phone Number (XTN) <b>optional </b>
       * <li>ARQ-17: Placer Contact Address (XAD) <b>optional </b>
       * <li>ARQ-18: Placer Contact Location (PL) <b>optional </b>
       * <li>ARQ-19: Entered By Person (XCN) <b> </b>
       * <li>ARQ-20: Entered By Phone Number (XTN) <b>optional repeating</b>
       * <li>ARQ-21: Entered By Location (PL) <b>optional </b>
       * <li>ARQ-22: Parent Placer Appointment ID (EI) <b>optional </b>
       * <li>ARQ-23: Parent Filler Appointment ID (EI) <b>optional </b>
   * </ul>
   */
  @SuppressWarnings("unused")
  public class ARQ extends AbstractSegment {
  
      /** 
       * Creates a new ARQ segment
       */
      public ARQ(Group parent, ModelClassFactory factory) {
         super(parent, factory);
         init(factory);
      }
  
      private void init(ModelClassFactory factory) {
         try {
                                    this.add(EI.class, true, 1, 22, new Object[]{ getMessage() }, "Placer Appointment ID");
                                    this.add(EI.class, false, 1, 22, new Object[]{ getMessage() }, "Filler Appointment ID");
                                    this.add(NM.class, false, 1, 5, new Object[]{ getMessage() }, "Occurrence Number");
                                    this.add(EI.class, false, 1, 37, new Object[]{ getMessage() }, "Placer Group Number");
                                    this.add(CE.class, false, 1, 200, new Object[]{ getMessage() }, "Schedule ID");
                                    this.add(CE.class, false, 1, 200, new Object[]{ getMessage() }, "Request Event Reason");
                                    this.add(CE.class, false, 1, 200, new Object[]{ getMessage() }, "Appointment Reason");
                                    this.add(CE.class, false, 1, 200, new Object[]{ getMessage() }, "Appointment Type");
                                    this.add(NM.class, false, 1, 20, new Object[]{ getMessage() }, "Appointment Duration");
                                    this.add(CE.class, false, 1, 200, new Object[]{ getMessage() }, "Appointment Duration Units");
                                   this.add(DR.class, false, 0, 53, new Object[]{ getMessage() }, "Requested Start Date/Time Range");
                                   this.add(ST.class, false, 1, 5, new Object[]{ getMessage() }, "Priority");
                                   this.add(RI.class, false, 1, 100, new Object[]{ getMessage() }, "Repeating Interval");
                                   this.add(ST.class, false, 1, 5, new Object[]{ getMessage() }, "Repeating Interval Duration");
                                   this.add(XCN.class, false, 1, 48, new Object[]{ getMessage() }, "Placer Contact Person");
                                   this.add(XTN.class, false, 1, 40, new Object[]{ getMessage() }, "Placer Contact Phone Number");
                                   this.add(XAD.class, false, 1, 106, new Object[]{ getMessage() }, "Placer Contact Address");
                                   this.add(PL.class, false, 1, 80, new Object[]{ getMessage() }, "Placer Contact Location");
                                   this.add(XCN.class, true, 1, 48, new Object[]{ getMessage() }, "Entered By Person");
                                   this.add(XTN.class, false, 0, 40, new Object[]{ getMessage() }, "Entered By Phone Number");
                                   this.add(PL.class, false, 1, 80, new Object[]{ getMessage() }, "Entered By Location");
                                   this.add(EI.class, false, 1, 75, new Object[]{ getMessage() }, "Parent Placer Appointment ID");
                                   this.add(EI.class, false, 1, 75, new Object[]{ getMessage() }, "Parent Filler Appointment ID");
        } catch(HL7Exception e) {
           log.error("Unexpected error creating ARQ - this is probably a bug in the source code generator.", e);
        }
     }
 
 
 
     /**
      * Returns
      * ARQ-1: "Placer Appointment ID" - creates it if necessary
      */
     public EI getPlacerAppointmentID() { 
 		EI retVal = this.getTypedField(1, 0);
 		return retVal;
     }
     
     /**
      * Returns
      * ARQ-1: "Placer Appointment ID" - creates it if necessary
      */
     public EI getArq1_PlacerAppointmentID() { 
 		EI retVal = this.getTypedField(1, 0);
 		return retVal;
     }
 
 
 
     /**
      * Returns
      * ARQ-2: "Filler Appointment ID" - creates it if necessary
      */
     public EI getFillerAppointmentID() { 
 		EI retVal = this.getTypedField(2, 0);
 		return retVal;
     }
     
     /**
      * Returns
      * ARQ-2: "Filler Appointment ID" - creates it if necessary
      */
     public EI getArq2_FillerAppointmentID() { 
 		EI retVal = this.getTypedField(2, 0);
 		return retVal;
     }
 
 
 
     /**
      * Returns
      * ARQ-3: "Occurrence Number" - creates it if necessary
      */
     public NM getOccurrenceNumber() { 
 		NM retVal = this.getTypedField(3, 0);
 		return retVal;
     }
     
     /**
      * Returns
      * ARQ-3: "Occurrence Number" - creates it if necessary
      */
     public NM getArq3_OccurrenceNumber() { 
 		NM retVal = this.getTypedField(3, 0);
 		return retVal;
     }
 
 
 
     /**
      * Returns
      * ARQ-4: "Placer Group Number" - creates it if necessary
      */
     public EI getPlacerGroupNumber() { 
 		EI retVal = this.getTypedField(4, 0);
 		return retVal;
     }
     
     /**
      * Returns
      * ARQ-4: "Placer Group Number" - creates it if necessary
      */
     public EI getArq4_PlacerGroupNumber() { 
 		EI retVal = this.getTypedField(4, 0);
 		return retVal;
     }
 
 
 
     /**
      * Returns
      * ARQ-5: "Schedule ID" - creates it if necessary
      */
     public CE getScheduleID() { 
 		CE retVal = this.getTypedField(5, 0);
 		return retVal;
     }
     
     /**
      * Returns
      * ARQ-5: "Schedule ID" - creates it if necessary
      */
     public CE getArq5_ScheduleID() { 
 		CE retVal = this.getTypedField(5, 0);
 		return retVal;
     }
 
 
 
     /**
      * Returns
      * ARQ-6: "Request Event Reason" - creates it if necessary
      */
     public CE getRequestEventReason() { 
 		CE retVal = this.getTypedField(6, 0);
 		return retVal;
     }
     
     /**
      * Returns
      * ARQ-6: "Request Event Reason" - creates it if necessary
      */
     public CE getArq6_RequestEventReason() { 
 		CE retVal = this.getTypedField(6, 0);
 		return retVal;
     }
 
 
 
     /**
      * Returns
      * ARQ-7: "Appointment Reason" - creates it if necessary
      */
     public CE getAppointmentReason() { 
 		CE retVal = this.getTypedField(7, 0);
 		return retVal;
     }
     
     /**
      * Returns
      * ARQ-7: "Appointment Reason" - creates it if necessary
      */
     public CE getArq7_AppointmentReason() { 
 		CE retVal = this.getTypedField(7, 0);
 		return retVal;
     }
 
 
 
     /**
      * Returns
      * ARQ-8: "Appointment Type" - creates it if necessary
      */
     public CE getAppointmentType() { 
 		CE retVal = this.getTypedField(8, 0);
 		return retVal;
     }
     
     /**
      * Returns
      * ARQ-8: "Appointment Type" - creates it if necessary
      */
     public CE getArq8_AppointmentType() { 
 		CE retVal = this.getTypedField(8, 0);
 		return retVal;
     }
 
 
 
     /**
      * Returns
      * ARQ-9: "Appointment Duration" - creates it if necessary
      */
     public NM getAppointmentDuration() { 
 		NM retVal = this.getTypedField(9, 0);
 		return retVal;
     }
     
     /**
      * Returns
      * ARQ-9: "Appointment Duration" - creates it if necessary
      */
     public NM getArq9_AppointmentDuration() { 
 		NM retVal = this.getTypedField(9, 0);
 		return retVal;
     }
 
 
 
     /**
      * Returns
      * ARQ-10: "Appointment Duration Units" - creates it if necessary
      */
     public CE getAppointmentDurationUnits() { 
 		CE retVal = this.getTypedField(10, 0);
 		return retVal;
     }
     
     /**
      * Returns
      * ARQ-10: "Appointment Duration Units" - creates it if necessary
      */
     public CE getArq10_AppointmentDurationUnits() { 
 		CE retVal = this.getTypedField(10, 0);
 		return retVal;
     }
 
 
     /**
      * Returns all repetitions of Requested Start Date/Time Range (ARQ-11).
      */
     public DR[] getRequestedStartDateTimeRange() {
     	DR[] retVal = this.getTypedField(11, new DR[0]);
     	return retVal;
     }
 
 
     /**
      * Returns all repetitions of Requested Start Date/Time Range (ARQ-11).
      */
     public DR[] getArq11_RequestedStartDateTimeRange() {
     	DR[] retVal = this.getTypedField(11, new DR[0]);
     	return retVal;
     }
 
 
     /**
      * Returns a count of the current number of repetitions of Requested Start Date/Time Range (ARQ-11).
      * This method does not create a repetition, so if no repetitions have currently been defined or accessed,
      * it will return zero.
      */
     public int getRequestedStartDateTimeRangeReps() {
     	return this.getReps(11);
     }
 
 
     /**
      * Returns a specific repetition of
      * ARQ-11: "Requested Start Date/Time Range" - creates it if necessary
      *
      * @param rep The repetition index (0-indexed)
      */
     public DR getRequestedStartDateTimeRange(int rep) { 
 		DR retVal = this.getTypedField(11, rep);
 		return retVal;
     }
 
     /**
      * Returns a specific repetition of
      * ARQ-11: "Requested Start Date/Time Range" - creates it if necessary
      *
      * @param rep The repetition index (0-indexed)
      */
     public DR getArq11_RequestedStartDateTimeRange(int rep) { 
 		DR retVal = this.getTypedField(11, rep);
 		return retVal;
     }
 
     /**
      * Returns a count of the current number of repetitions of Requested Start Date/Time Range (ARQ-11).
      * This method does not create a repetition, so if no repetitions have currently been defined or accessed,
      * it will return zero.
      */
     public int getArq11_RequestedStartDateTimeRangeReps() {
     	return this.getReps(11);
     }
 
 
     /**
      * Inserts a repetition of
      * ARQ-11: "Requested Start Date/Time Range" at a specific index
      *
      * @param rep The repetition index (0-indexed)
      * @throws HL7Exception If the rep is invalid (below 0, or too high for the allowable repetitions)
      */
     public DR insertRequestedStartDateTimeRange(int rep) throws HL7Exception { 
         return (DR) super.insertRepetition(11, rep);
     }
 
 
     /**
      * Inserts a repetition of
      * ARQ-11: "Requested Start Date/Time Range" at a specific index
      *
      * @param rep The repetition index (0-indexed)
      * @throws HL7Exception If the rep is invalid (below 0, or too high for the allowable repetitions)
      */
     public DR insertArq11_RequestedStartDateTimeRange(int rep) throws HL7Exception { 
         return (DR) super.insertRepetition(11, rep);
     }
 
 
     /**
      * Removes a repetition of
      * ARQ-11: "Requested Start Date/Time Range" at a specific index
      *
      * @param rep The repetition index (0-indexed)
      * @throws HL7Exception If the rep is invalid (below 0, or too high for the allowable repetitions)
      */
     public DR removeRequestedStartDateTimeRange(int rep) throws HL7Exception { 
         return (DR) super.removeRepetition(11, rep);
     }
 
 
     /**
      * Removes a repetition of
      * ARQ-11: "Requested Start Date/Time Range" at a specific index
      *
      * @param rep The repetition index (0-indexed)
      * @throws HL7Exception If the rep is invalid (below 0, or too high for the allowable repetitions)
      */
     public DR removeArq11_RequestedStartDateTimeRange(int rep) throws HL7Exception { 
         return (DR) super.removeRepetition(11, rep);
     }
 
 
 
 
     /**
      * Returns
      * ARQ-12: "Priority" - creates it if necessary
      */
     public ST getPriority() { 
 		ST retVal = this.getTypedField(12, 0);
 		return retVal;
     }
     
     /**
      * Returns
      * ARQ-12: "Priority" - creates it if necessary
      */
     public ST getArq12_Priority() { 
 		ST retVal = this.getTypedField(12, 0);
 		return retVal;
     }
 
 
 
     /**
      * Returns
      * ARQ-13: "Repeating Interval" - creates it if necessary
      */
     public RI getRepeatingInterval() { 
 		RI retVal = this.getTypedField(13, 0);
 		return retVal;
     }
     
     /**
      * Returns
      * ARQ-13: "Repeating Interval" - creates it if necessary
      */
     public RI getArq13_RepeatingInterval() { 
 		RI retVal = this.getTypedField(13, 0);
 		return retVal;
     }
 
 
 
     /**
      * Returns
      * ARQ-14: "Repeating Interval Duration" - creates it if necessary
      */
     public ST getRepeatingIntervalDuration() { 
 		ST retVal = this.getTypedField(14, 0);
 		return retVal;
     }
     
     /**
      * Returns
      * ARQ-14: "Repeating Interval Duration" - creates it if necessary
      */
     public ST getArq14_RepeatingIntervalDuration() { 
 		ST retVal = this.getTypedField(14, 0);
 		return retVal;
     }
 
 
 
     /**
      * Returns
      * ARQ-15: "Placer Contact Person" - creates it if necessary
      */
     public XCN getPlacerContactPerson() { 
 		XCN retVal = this.getTypedField(15, 0);
 		return retVal;
     }
     
     /**
      * Returns
      * ARQ-15: "Placer Contact Person" - creates it if necessary
      */
     public XCN getArq15_PlacerContactPerson() { 
 		XCN retVal = this.getTypedField(15, 0);
 		return retVal;
     }
 
 
 
     /**
      * Returns
      * ARQ-16: "Placer Contact Phone Number" - creates it if necessary
      */
     public XTN getPlacerContactPhoneNumber() { 
 		XTN retVal = this.getTypedField(16, 0);
 		return retVal;
     }
     
     /**
      * Returns
      * ARQ-16: "Placer Contact Phone Number" - creates it if necessary
      */
     public XTN getArq16_PlacerContactPhoneNumber() { 
 		XTN retVal = this.getTypedField(16, 0);
 		return retVal;
     }
 
 
 
     /**
      * Returns
      * ARQ-17: "Placer Contact Address" - creates it if necessary
      */
     public XAD getPlacerContactAddress() { 
 		XAD retVal = this.getTypedField(17, 0);
 		return retVal;
     }
     
     /**
      * Returns
      * ARQ-17: "Placer Contact Address" - creates it if necessary
      */
     public XAD getArq17_PlacerContactAddress() { 
 		XAD retVal = this.getTypedField(17, 0);
 		return retVal;
     }
 
 
 
     /**
      * Returns
      * ARQ-18: "Placer Contact Location" - creates it if necessary
      */
     public PL getPlacerContactLocation() { 
 		PL retVal = this.getTypedField(18, 0);
 		return retVal;
     }
     
     /**
      * Returns
      * ARQ-18: "Placer Contact Location" - creates it if necessary
      */
     public PL getArq18_PlacerContactLocation() { 
 		PL retVal = this.getTypedField(18, 0);
 		return retVal;
     }
 
 
 
     /**
      * Returns
      * ARQ-19: "Entered By Person" - creates it if necessary
      */
     public XCN getEnteredByPerson() { 
 		XCN retVal = this.getTypedField(19, 0);
 		return retVal;
     }
     
     /**
      * Returns
      * ARQ-19: "Entered By Person" - creates it if necessary
      */
     public XCN getArq19_EnteredByPerson() { 
 		XCN retVal = this.getTypedField(19, 0);
 		return retVal;
     }
 
 
     /**
      * Returns all repetitions of Entered By Phone Number (ARQ-20).
      */
     public XTN[] getEnteredByPhoneNumber() {
     	XTN[] retVal = this.getTypedField(20, new XTN[0]);
     	return retVal;
     }
 
 
     /**
      * Returns all repetitions of Entered By Phone Number (ARQ-20).
      */
     public XTN[] getArq20_EnteredByPhoneNumber() {
     	XTN[] retVal = this.getTypedField(20, new XTN[0]);
     	return retVal;
     }
 
 
     /**
      * Returns a count of the current number of repetitions of Entered By Phone Number (ARQ-20).
      * This method does not create a repetition, so if no repetitions have currently been defined or accessed,
      * it will return zero.
      */
     public int getEnteredByPhoneNumberReps() {
     	return this.getReps(20);
     }
 
 
     /**
      * Returns a specific repetition of
      * ARQ-20: "Entered By Phone Number" - creates it if necessary
      *
      * @param rep The repetition index (0-indexed)
      */
     public XTN getEnteredByPhoneNumber(int rep) { 
 		XTN retVal = this.getTypedField(20, rep);
 		return retVal;
     }
 
     /**
      * Returns a specific repetition of
      * ARQ-20: "Entered By Phone Number" - creates it if necessary
      *
      * @param rep The repetition index (0-indexed)
      */
     public XTN getArq20_EnteredByPhoneNumber(int rep) { 
 		XTN retVal = this.getTypedField(20, rep);
 		return retVal;
     }
 
     /**
      * Returns a count of the current number of repetitions of Entered By Phone Number (ARQ-20).
      * This method does not create a repetition, so if no repetitions have currently been defined or accessed,
      * it will return zero.
      */
     public int getArq20_EnteredByPhoneNumberReps() {
     	return this.getReps(20);
     }
 
 
     /**
      * Inserts a repetition of
      * ARQ-20: "Entered By Phone Number" at a specific index
      *
      * @param rep The repetition index (0-indexed)
      * @throws HL7Exception If the rep is invalid (below 0, or too high for the allowable repetitions)
      */
     public XTN insertEnteredByPhoneNumber(int rep) throws HL7Exception { 
         return (XTN) super.insertRepetition(20, rep);
     }
 
 
     /**
      * Inserts a repetition of
      * ARQ-20: "Entered By Phone Number" at a specific index
      *
      * @param rep The repetition index (0-indexed)
      * @throws HL7Exception If the rep is invalid (below 0, or too high for the allowable repetitions)
      */
     public XTN insertArq20_EnteredByPhoneNumber(int rep) throws HL7Exception { 
         return (XTN) super.insertRepetition(20, rep);
     }
 
 
     /**
      * Removes a repetition of
      * ARQ-20: "Entered By Phone Number" at a specific index
      *
      * @param rep The repetition index (0-indexed)
      * @throws HL7Exception If the rep is invalid (below 0, or too high for the allowable repetitions)
      */
     public XTN removeEnteredByPhoneNumber(int rep) throws HL7Exception { 
         return (XTN) super.removeRepetition(20, rep);
     }
 
 
     /**
      * Removes a repetition of
      * ARQ-20: "Entered By Phone Number" at a specific index
      *
      * @param rep The repetition index (0-indexed)
      * @throws HL7Exception If the rep is invalid (below 0, or too high for the allowable repetitions)
      */
     public XTN removeArq20_EnteredByPhoneNumber(int rep) throws HL7Exception { 
         return (XTN) super.removeRepetition(20, rep);
     }
 
 
 
 
     /**
      * Returns
      * ARQ-21: "Entered By Location" - creates it if necessary
      */
     public PL getEnteredByLocation() { 
 		PL retVal = this.getTypedField(21, 0);
 		return retVal;
     }
     
     /**
      * Returns
      * ARQ-21: "Entered By Location" - creates it if necessary
      */
     public PL getArq21_EnteredByLocation() { 
 		PL retVal = this.getTypedField(21, 0);
 		return retVal;
     }
 
 
 
     /**
      * Returns
      * ARQ-22: "Parent Placer Appointment ID" - creates it if necessary
      */
     public EI getParentPlacerAppointmentID() { 
 		EI retVal = this.getTypedField(22, 0);
 		return retVal;
     }
     
     /**
      * Returns
      * ARQ-22: "Parent Placer Appointment ID" - creates it if necessary
      */
     public EI getArq22_ParentPlacerAppointmentID() { 
 		EI retVal = this.getTypedField(22, 0);
 		return retVal;
     }
 
 
 
     /**
      * Returns
      * ARQ-23: "Parent Filler Appointment ID" - creates it if necessary
      */
     public EI getParentFillerAppointmentID() { 
 		EI retVal = this.getTypedField(23, 0);
 		return retVal;
     }
     
     /**
      * Returns
      * ARQ-23: "Parent Filler Appointment ID" - creates it if necessary
      */
     public EI getArq23_ParentFillerAppointmentID() { 
 		EI retVal = this.getTypedField(23, 0);
 		return retVal;
     }
 
 
 
 
 
     /** {@inheritDoc} */   
     protected Type createNewTypeWithoutReflection(int field) {
        switch (field) {
           case 0: return new EI(getMessage());
           case 1: return new EI(getMessage());
           case 2: return new NM(getMessage());
           case 3: return new EI(getMessage());
           case 4: return new CE(getMessage());
           case 5: return new CE(getMessage());
           case 6: return new CE(getMessage());
           case 7: return new CE(getMessage());
           case 8: return new NM(getMessage());
           case 9: return new CE(getMessage());
           case 10: return new DR(getMessage());
           case 11: return new ST(getMessage());
           case 12: return new RI(getMessage());
           case 13: return new ST(getMessage());
           case 14: return new XCN(getMessage());
           case 15: return new XTN(getMessage());
           case 16: return new XAD(getMessage());
           case 17: return new PL(getMessage());
           case 18: return new XCN(getMessage());
           case 19: return new XTN(getMessage());
           case 20: return new PL(getMessage());
           case 21: return new EI(getMessage());
           case 22: return new EI(getMessage());
           default: return null;
        }
    }
 
 
 }