Dynamic access to attributes

[Former Member]

Hi all

I have a class with many public static attributes. To provide a generic solution I want to access the value of such an attribute dynamically at run-time. Unfortunately am I not able to do it. Can you help me with this issue?

The following code fragment for instance is not allowed. In this case I receive the syntax error that 'Dynamic attribute declarations are not supported in the current statement'.

DATA: 
lv_txt         TYPE string,
lv_attribute   TYPE string.

lv_attribute = 'TEST'.
lv_txt = Z_TEST=>(lv_attribute).

Any hint is welcome...

Thanks, Mathias

[Former Member]

Hi all

I have a class with many public static attributes. To provide a generic solution I want to access the value of such an attribute dynamically at run-time. Unfortunately am I not able to do it. Can you help me with this issue?

The following code fragment for instance is not allowed. In this case I receive the syntax error that 'Dynamic attribute declarations are not supported in the current statement'.

DATA: 
lv_txt         TYPE string,
lv_attribute   TYPE string.

lv_attribute = 'TEST'.
lv_txt = Z_TEST=>(lv_attribute).

Any hint is welcome...

Thanks, Mathias

[Former Member]

hi,

you could do a little workaround by calling a get-method dynamicly, which will return the attribute you would like to read:

CALL METHOD Z_TEST=>(ld_methodname)

greetings,

dsp

[Former Member]

Hi dsp

I don't think that this will do the trick. If I just call a get method and provide the name of the attribute as import parameter, I get method must now determine the attribute dynamically. I want to avoid in any case any SWITCH or IF cases, I want to access attribute values dynamically.

Regards, Mathias

[Former Member]

hi,

you could concatenate the methodname, but you would still need to implement a real method which will returnjust the specific attribute:

concatenate 'get_' ld_attribute into ld_methodname

[MarcinPciak]

You have to access it using dynamic assing

FIELD-SYMBOLS <attr> TYPE string.

ASSIGN cl_abap_char_utilities=>('HORIZONTAL_TAB') TO <attr>.

Regards

Marcin

For reference [Accessing Class Components |http://help.sap.com/abapdocu_70/en/ABENCLASS_COMPONENTS_ADDRESSING.htm]

Edited by: Marcin Pciak on Jun 2, 2010 10:16 AM