Dynamic Table Creation using RTTS - Question on Issue

[Former Member]

I am using the RTTS services to dynamically create a table. However, when I attempt to use the get_components method it does not return all the components for all tables that I am working with.

Cases and End Results

1) Created structure in data dictionary – get_components works.

2) Pass PA0001, P0001 or T001P to get_components and I do not receive the correct results. It only returns a small subset of these objects. The components table has all the entries; however, the get_components method only returns about 4 rows.

Can you explain this and point me to the correct logic sequence? I would like the logic to work with all tables.

Code excerpt below:

The logic for the get components works for case 1, but not case 2. When I pass into this method a "Z" custom table or structure name for parameter “structure_name” and the get_components() method executes and returns the correct results. However, when I pass in any of the objects listed above in case 2, the get_components method does not return the correct number of entries. When I check typ_struct which is populated right before the get_components line, I see the correct number of components in the components table.

method pb_add_column_headings .

constants: c_generic_struct type c length 19 value 'ZXX_COLUMN_HEADINGS'.

data: cnt_lines type sytabix,

rf_data type ref to data,

typ_field type ref to cl_abap_datadescr,

typ_struct type ref to cl_abap_structdescr,

typ_table type ref to cl_abap_tabledescr.

data: wa_col_headings type ddobjname.

data: rf_tbl_creation_exception type ref to

cx_sy_table_creation,

rf_struct_creation_exception type ref to

cx_sy_struct_creation.

data: t_comp_tab type

cl_abap_structdescr=>component_table,

t_comp_tab_new like t_comp_tab,

t_comp_tab_imported like t_comp_tab.

field-symbols: <fs_comp> like line of t_comp_tab,

<fs_col_headings_tbl> type any table.

**Get components of generic structure

wa_col_headings = c_generic_struct.

typ_struct ?= cl_abap_typedescr=>describe_by_name(

wa_col_headings ).

T_COMP_TAB = typ_struct->get_components( ).

**Determine how many components in imported structure.

typ_struct ?= cl_abap_typedescr=>describe_by_name(

structure_name ).

t_comp_tab_imported = typ_struct->get_components( ).

cnt_lines = lines( t_comp_tab_imported[] ).

[Former Member]

Hi Garton,

1. GET_COMPONENT_LIST

Use this FM.

It gives all fieldnames.

2. Use this code (just copy paste)

REPORT abc.

DATA : cmp LIKE TABLE OF rstrucinfo WITH HEADER LINE.

DATA : pa0001 LIKE TABLE OF pa0001 WITH HEADER LINE.

CALL FUNCTION 'GET_COMPONENT_LIST'

EXPORTING

program = sy-repid

fieldname = 'PA0001'

TABLES

components = cmp.

LOOP AT cmp.

WRITE 😕 cmp-compname.

ENDLOOP.

regards,

amit m.

[Former Member]

Thanks for this information. however, I was looking for an answer to why the method get_components in class cl_abap_structdescr is not working with all tables. I am aware of this FM; however, I was looking for a solution in RTTS.

Thanks,

john

[Former Member]

Hi again,

1. The reason could be

.INCLUDE

2. If in se11,

u see PA0001.

3. It has 4 rows. (basic definition)

MANDT

.INCLUDE

.INCLUDE

.INCLUDE

4. May be,

the RTTS does not EXPAND

these .INCLUDE

AND RETURNS ONLY 4 ROWS.

regards,

amit m.

[Former Member]

The answer to my question was right under my nose and I did not see it at first.

There is a method in the same class that does what I wanted. It will traverse multiple levels of include statements to return a table with just the components in it.

Method: get_included_view( )

You pass in an integer value to determine how deep you want to traverse.

Now I check the field HAS_INCLUDE and if its checked, then I call get_included_view otherwise I call get_components().

John