topic Re: How to access data from datatype TYPE REF TO DATA? in Application Development and Automation Discussions

How to access data from datatype TYPE REF TO DATA?

former_member557553 — Fri, 02 Dec 2011 13:47:27 GMT

Hello community,

I have a more general question.

In a method I get a parameter that is of type 'TYPE REF TO DATA'.

In this object, there is a list of fieldnames and its values (name-value-pair).

When I debug I see the name and the values.

I implemented following to access the data:

" Define local structure
  TYPES:
    BEGIN OF S_VALUE_PAIR,
      NAME TYPE ANY,
      VALUE TYPE ANY,
    END OF S_VALUE_PAIR.
  
  " Define local table type  
  TYPES T_VALUE_PAIR TYPE S_VALUE_PAIR.
  
    
  FIELD-SYMBOLS <fs_value_pair> TYPE T_VALUE_PAIR.
  
  " (!!) Type conflict  
  ASSIGN IS_DATA TO <fs_value_pair>.

The problem is, that the structure if the data in the parameter is unknown or dynamically created.

So how can I access the data in this case?

Thank you and BR, Christian

Re: How to access data from datatype TYPE REF TO DATA?

antony_paul2 — Fri, 02 Dec 2011 14:05:49 GMT

Can you try this statement.

ASSIGN is_data->* TO <fs_value_pair>.

Re: How to access data from datatype TYPE REF TO DATA?

Former Member — Fri, 02 Dec 2011 15:17:34 GMT

Try this:

FIELD-SYMBOLS: <FW>.

ASSIGN IS_DATA->* TO <dyn_wa>.

Re: How to access data from datatype TYPE REF TO DATA?

former_member557553 — Mon, 05 Dec 2011 09:40:02 GMT

Hallo Antony,

thank you for your reply. I have tried it but brings me the same error.

"Type conflict with ASSIGN in program ZCL_HRESS_PER_DETAIL_ADDR_AT==CP "

BR, Christian

Re: How to access data from datatype TYPE REF TO DATA?

former_member557553 — Mon, 05 Dec 2011 09:44:13 GMT

Hello David,

how do you mean this? Something like this:

" Define local structure
  TYPES:
    BEGIN OF S_VALUE_PAIR,
      NAME TYPE string,
      VALUE TYPE string,
    END OF S_VALUE_PAIR.

  " Define local table type
  TYPES T_VALUE_PAIR TYPE S_VALUE_PAIR.

  " Here I didn't define a TYPE --> but in OO Context, this is not allowed
  FIELD-SYMBOLS <fs_value_pair>. "TYPE T_VALUE_PAIR.

  " (!!) Type conflict
  ASSIGN IS_DATA->* TO <fs_value_pair>.

Brings me the debugger-msg: "Untypisierte Feldsymbole werden im OO- Kontext nicht unterstützt." --> fieldsymbols with no type are not allowed in OO-Context

BR, Christian

Re: How to access data from datatype TYPE REF TO DATA?

kesavadas_thekkillath — Mon, 05 Dec 2011 10:09:51 GMT

Hi,

Just declare as

FIELD-SYMBOLS <fs_value_pair> type any

or as

FIELD-SYMBOLS <fs_value_pair> type table

Re: How to access data from datatype TYPE REF TO DATA?

former_member256686 — Tue, 06 Dec 2011 09:25:44 GMT

hi,

I had a short call with Christian, now here's a working solution:


FIELD-SYMBOLS <ls_data> TYPE DATA.
FIELD-SYMBOLS <lv_field> TYPE fieldtype.

ASSIGN is_data->* to <ls_data>. "dereference into field symbol
ASSIGN COMPONENT 'FIELDNAME' OF STRUCTURE <ls_data> TO <lv_field>.

"error handling might be useful if component FIELDNAME is not available

BTW, this was in an FPM form feeder class. Hope this helps.

Regards

Ole