Creation of class inside Method

Question

Hi Forums,
        I am new to WebDynpro-Abap and i am trying to practice WebDynpro-Abap with the help of  standard Tutorial avl in the SDN.
        In the Tutorial 4, i am getting the following error,
The type <b>CL_WDABAP_FLIGHT_MODEL=>get_bookings is unknown or not found</b>
        but in that tutorial,they specify the  encounter of  the above error like
<u>Simply create a ZCL_WDABAP_FLIGHT_MODEL class in your get_bookings method.</u>
       But  i don't know,where  to  Create the class  inside the get_bookings method
can any body  tell me the steps to create  ZCL_WDABAP_FLIGHT_MODEL class in the get_bookings method and the remaining steps to execute the particular application.
Thanks in Advance,
Ashok

Answer 1

Hi Ashok,
Follow the steps for creation of Class and the method,
STEPS TO CREATE CLASS:
1) CREATE ZIT_FLIGHTTAB(AN INTERNAL TABLE) IN SE11 UNDER DATA TYPE->TABLE TYPE.
2) GIVE LINE TYPE AS SFLIGHT. SAVE,CHECK AND ACTIVATE THE INTERNAL TABLE.
3) CREATE GLOBAL CLASS ZNET_NET310_FLIGHTMODEL_## USING TRANSACTION CODE SE24.
4) IN THE ATTRIBUTES TAB, ENTER AS FOLLOWS,
    ATTRIBUTE          LEVEL          VISIBILITY     TYPING          ASSOCIATED TYPE
    TY_FLIGHTS        STATIC ATTRIBUTE       PUBLIC     TYPE             SFLIGHT
    ZIT_OUTTAB        STATIC ATTRIBUTE       PUBLIC     TYPE             TY_FLIGHTS
5) IN THE METHODS TAB, ENTER AS FOLLOWS,
      METHOD          LEVEL          VISIBILITY     DESCRIPTION
   READ_FLIGHTS          STATIC METHOD        PUBLIC     READ FLIGHT DATA
6) CLICK ON PARAMETERS, ENTER AS FOLLOWS,
      PARAMETER          TYPE          TYPING METHOD     ASSOCIATED TYPE          
      I_CARRID           IMPORTING             TYPE          SFLIGHT-CARRID
      I_CONNID           IMPORTING             TYPE         SFLIGHT-CONNID
      E_FLIGHTS           EXPORTING            TYPE         ZIT_FLIGHTTAB
7) DOUBLE CLICK ON METHOD:READ_FLIGHTS AND ENTER FOLLOWING SORCE CODE IN BETWEEN METHOD AND ENDMETHOD.
     SELECT * FROM SFLIGHT INTO TABLE ZIT_OUTTAB WHERE CARRID = I_CARRID AND CONNID = I_CONNID.
      E_FLIGHTS[] = ZIT_OUTTAB[].
8) SAVE CHECK AND ACTIVATE CLASS.
NOTE :
PLEASE FOLLOW SAME STEPS FOR OTHER METHODS THAT COMES IN FOLLOWING EXCERCISE IN SAME CLASS i.e ZCL_NET310_FLIGHTMODEL_##.
In next few tutorials you will need to create more methods. Follow steps to add new methods as and when required.
Regards,
Achyut