ABAP Programs Archives

July 27, 2020 ABAP Programs, OOABAP Barry Allen

OOPS ALV in SAP ABAP

2 Introduction The OO ALV is ALV using object-oriented ABAP. ALV stands for ABAP List Viewer and provides the standard list format and user interface for all the ABAP programs. The advantage of using OOPS ALV in SAP ABAP is that is flexible and used to build interactive and modern-designing list. SAP has provided a […]

December 29, 2019 ABAP Programs Barry Allen

Function Imports in SAP OData

16 DATA: ls_parameter TYPE /iwbep/s_mgw_name_value_pair, lv_custid TYPE kunnr, lv_flag TYPE char1, lt_custinfo TYPE TABLE OF ztest_gw_srv, ls_custinfo TYPE ztest_gw_srv, ls_entity TYPE zcl_ztest_gw_srv_mpc=>ts_msg_return. IF iv_action_name = ‘demoFuncImport’. ” Check what action is being requested IF it_parameter IS NOT INITIAL. * Read Function import parameter value READ TABLE it_parameter INTO ls_parameter WITH KEY name = ‘CustId’. IF […]

December 29, 2019 ABAP Programs Barry Allen

Convert JSON to ABAP Internal Table

22 TYPES: BEGIN OF t_entry, access_token TYPE string, token_type TYPE string, expires_in TYPE n LENGTH 8, scope TYPE string, jti TYPE string, END OF t_entry . TYPES: t_entry_map TYPE SORTED TABLE OF t_entry WITH UNIQUE KEY access_token. DATA: m_entries TYPE t_entry. DATA: lr_instance TYPE REF TO /ui5/cl_json_parser. CREATE OBJECT lr_instance. CALL METHOD me->get_token. IF gv_token […]

December 29, 2019 ABAP Programs, Blockchain Barry Allen

Create Object History in SAP Blockchain

10 In this article we will learn how to create a block in Blockchain at SAP Cloud Platform. METHOD create_object_history. DATA: lo_http_client TYPE REF TO if_http_client. DATA: response TYPE string, lv_url TYPE string, lv_auth TYPE string. CONSTANTS : lv_initial_url TYPE string VALUE ‘<Your_Service>’. IF iv_object_id IS NOT INITIAL. *** Getting Token TYPES: BEGIN OF t_entry, […]

December 29, 2019 ABAP Programs, Blockchain Barry Allen

Get Proof history from the Blockchain Service

8 In this step we will call the blockchain service again using the token that we have stored in above step. And then we will receive the history of transactions from blockchain. METHOD get_proof_history. DATA: lo_http_client TYPE REF TO if_http_client. DATA: response TYPE string, lv_url TYPE string, lv_auth TYPE string, lv_auth2 TYPE string. CONSTANTS : […]

December 29, 2019 ABAP Programs Barry Allen

Get Token from SAP Cloud Platform Service

13 In this step we will call the service to get the token and store that token in a global variable for later use. METHOD get_token. DATA: lo_http_client TYPE REF TO if_http_client. DATA: response TYPE string, lv_url TYPE string. CONSTANTS: lv_initial_url TYPE string VALUE ‘<Blockchain Service Link>’, lv_auth TYPE string VALUE ‘Basic <your login credentials>’. […]

December 29, 2019 ABAP Programs Barry Allen

Calculate a hash in ABAP

16 In ABAP we can perform the following: calculate_hash_for_raw METHOD calculate_hash_for_raw. TRY. cl_abap_message_digest=>calculate_hash_for_raw( EXPORTING if_algorithm = ‘SHA256’ if_data = iv_data IMPORTING ef_hashstring = ev_sha256 ). CATCH cx_root. ” Eh, what’re you gonna do? ENDTRY. ENDMETHOD. calculate_hash_for_string METHOD calculate_hash_for_string. TRY. cl_abap_message_digest=>calculate_hash_for_char( EXPORTING if_algorithm = ‘SHA256’ if_data = iv_data IMPORTING ef_hashstring = ev_sha256 ). CATCH cx_root. ” […]

July 12, 2018 ABAP Programs Barry Allen

Type Casting in ABAP Class

606 Type Casting in ABAP Class Note: If you are searching for basic type casting/conversion of ABAP variable in Reports/Program, click here. Prerequisite: 1. You must have a basic Idea of local class and instance/reference of class. 2. Inheritance and Polymorphism concept Note: Parent Class is also called base class and Child class is also […]

June 5, 2018 ABAP Programs Barry Allen

Delete Duplicates in ABAP

531 To delete duplicates in ABAP either from a string or an internal table, we need to use ABAP statement “DELETE ADJACENT DUPLICATES FROM”. In this article, we have taken an example, which implements deletion of duplicate data when two strings are merged. This process also involves internal table. Introduction DELETE ADJACENT DUPLICATES FROM <Internal […]

June 4, 2018 ABAP Programs Barry Allen

Constructor Program in ABAP

81 TYPE-POOLS truxs. PARAMETERS p_file TYPE rlgrap-filename. TYPES : BEGIN OF t_tab, workstream TYPE char50, task TYPE zci_task, task_type TYPE char50, END OF t_tab. DATA : t_upload1 TYPE STANDARD TABLE OF ZDEMO_TEST2, wa_upload1 TYPE ZDEMO_TEST2. AT SELECTION-SCREEN ON VALUE-REQUEST FOR p_file. CALL FUNCTION ‘F4_FILENAME’ EXPORTING field_name = ‘P_FILE’ IMPORTING file_name = p_file. START-OF-SELECTION. CALL FUNCTION […]

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