How to Create ALV Report Using OOPS
ABAP
ALV Using Factory Method
·
The class that is used for
creating ALV report using the Object-oriented ABAP is CL_SALV_TABLE.
·
CL_SALV_TABLE uses the static
method FACTORY to create the instance of ALV. This is known as Factory method
design pattern.
·
After creating the instance,
the instance method DISPLAY is used to display the ALV output.
Read : Difference Between Instance and Static method
The program below is used to explain how to create a simple ALV report using the Factory method.
Program:
*&---------------------------------------------------------------------*
*& Report ZTEST_ALV
*&---------------------------------------------------------------------*
*&
*&---------------------------------------------------------------------*
REPORT ZTEST_ALV.
DATA: lo_alv TYPE REF TO cl_salv_table.
START-OF-SELECTION.
SELECT * FROM bkpf
INTO TABLE @DATA(it_bkpf)
UP TO 10 ROWS.
IF sy-subrc IS INITIAL.
cl_salv_table=>factory(
IMPORTING
r_salv_table = lo_alv " Basis Class Simple ALV Tables
CHANGING
t_table = it_bkpf[]
).
* CATCH cx_salv_msg. " ALV: General Error Class with Message
lo_alv->display( ).
ENDIF.
The above program will fetch 10 records
from BKPF table. The FACTORY method creates ALV table instance for IT_BKPF
data. The DISPLAY method displays the internal table IT_BKPF in ALV format.
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