topic Re: Accessing Deep Structure Components in Application Development and Automation Discussions

Accessing Deep Structure Components

DonnaA — Thu, 24 Jan 2019 17:08:19 GMT

I want to access the Data Field names and Data in a deep structure. The Deep structure contains data fields and 2 flat structures. The 2 structures are of the same Type, see snippet below.

The problem is that I do not want to hard code the PTS_ADDRESS for the structure name to access the data fields and data in the shipfr_address and shipto_address components.

Can someone please provide me the proper method to get to that data, dynamically? If I pass the shipfr_address as the name in the describe_by_name method, then it fails, because that name does not exist.

TYPES: BEGIN OF ptw_pallet_label,
         printer          TYPE rspolname,     " Printer Long name
         btw_file         TYPE char30,        " Bartender File Name
         copies           TYPE char2,         " Number of Copies
         shipfr_address   TYPE pts_address,   " Ship-From  <--Structure
         shipto_address   TYPE pts_address,   " Ship-To    <--Structure
         shipto_pstlz     TYPE char20,        " Ship-To Postal Code w/ Prefix
         bolnr            TYPE bolnr,         " Bill of Lading
       END OF ptw_pallet_label.
TYPES: pti_pallet_label TYPE STANDARD TABLE OF ptw_pallet_label.

*& Currently using the following to access the data fields, 
*& So how to complete this without having it hardcoded?
   gw_comp_strucname = 'PTS_ADDRESS'.
   go_comp_structdescr ?= cl_abap_typedescr=>describe_by_name( gw_comp_strucname ).
   gi_comp_structure = go_structdescr->get_components( ).

Re: Accessing Deep Structure Components

Ryan-Crosby — Thu, 24 Jan 2019 17:50:32 GMT

Hi Donna,

I have used the method 'describe_by_data' in the past for reading information dynamically in nested structures. You can retrieve a structure reference for what you are interested in by giving the relevant structure as input to the method and then read the components from that.

Regards,

Ryan Crosby

Re: Accessing Deep Structure Components

DonnaA — Thu, 24 Jan 2019 19:51:07 GMT

Thanks Ryan, you pointed me the direction I needed. I am now getting the structure reference and then using that to do a get_relative_name, which returns the proper PTS_ADDRESS, then I can do the describe_by_name and get components.