How to get node/element value from XPATH

former_member189354 — Thu, 08 Jan 2009 09:10:22 GMT

Hi,

I built DOM tree is there any way to have element values using XPATH. I am maintaing XPATH's in one of Ztables. Appreciate response.

Thanks,

Rao.Mallikarjuna

Re: How to get node/element value from XPATH

Former Member — Thu, 08 Jan 2009 13:06:30 GMT

hi,

the following link can be very useful for the same.

http://www.w3schools.com/XPath/xpath_syntax.asp

hope it helps

Re: How to get node/element value from XPATH

uwe_schieferstein — Fri, 09 Jan 2009 04:35:23 GMT

Hello Rao

It would be helpful if you had described how you build your DOM tree.

However, on SAP-XI I use the following ABAP class mapping to modify a DOM tree (insert file generation number (FLGN) into an EDI TRADACOM93 invoice message):


METHOD MAP_FLGN.
* define local data
  DATA: lo_node         TYPE REF TO if_ixml_node,
        lo_incode       TYPE REF TO if_ixml_node_collection,
        lo_child        TYPE REF TO if_ixml_node,
*
        ld_name         TYPE string,
        ld_value        TYPE string,
        ld_rc           TYPE i,
        ld_error_code   type MPG_ERRCODE,
        ld_msg          TYPE string.  " bapi_msg.

  DATA: ld_param_name   TYPE mpp_paramname,
        ld_param_value  TYPE string,
        ls_record       TYPE mpp_dynamic.

...
* NOTE: Structure of S_FIL segment (1st child = FLGN)
**  <S_FIL>
**    <FLGN>1133</FLGN>
**    <FLVN>1</FLVN>
**    <FLDT>080617</FLDT>
**    <FLID />
**  </S_FIL>

" NOTE: MO_DOCUMENT is TYPE REF TO if_ixml_document

* Get node collection of segment S_FIL (TRADACOM message)
  CLEAR: lo_incode,
         lo_node,
         lo_child.
  lo_incode  = mo_document->get_elements_by_tag_name( mc_segedi_s_fil ).

  ASSERT ID zedi
    FIELDS 'lo_incode'
    CONDITION ( lo_incode IS BOUND ).


  lo_node  = lo_incode->get_item( index = if_ixml_node=>co_node_xxx ).
  lo_child = lo_node->get_first_child( ).
  ld_name  = lo_child->get_name( ).

  ASSERT ID zedi
    FIELDS ld_name
    CONDITION ( ld_name = mc_flgn ).


* Set new File Generation Number (FLGN) into XML stream
  CALL METHOD lo_child->set_value
    EXPORTING
      value = ld_value
    RECEIVING
      rval  = ld_rc.
  IF ( ld_rc NE 0 ).
...

Regards

Uwe

Re: How to get node/element value from XPATH

former_member189354 — Tue, 07 Apr 2009 17:10:53 GMT

We can use SAP's Proxy Framework intenal classes to do this. Issue is resolved.

Thanks & Regards,

Rao.Mallikarjuna

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