topic Exchange XML document containing serialized DDIC objects in Application Development and Automation Discussions

Exchange XML document containing serialized DDIC objects

former_member256416 — Fri, 16 Mar 2007 08:01:17 GMT

Hi,

Suppose you have an itab "z_table" with generic linetype. The table may contain any ddic structure or table.

Furhter you want to exchange the itab "z_table" between the Systems A and B using XML.

We are using the following code to serialize the itab "z_table" in system A:


  DATA: g_ixml TYPE REF TO if_ixml,
        g_stream_factory TYPE REF TO if_ixml_stream_factory,
        g_encoding TYPE REF TO if_ixml_encoding,
        ostream TYPE REF TO if_ixml_ostream.

  CONSTANTS: encoding TYPE string VALUE 'utf-8'.

  g_ixml = cl_ixml=>create( ).
  g_stream_factory = g_ixml->create_stream_factory( ).
  g_encoding = g_ixml->create_encoding(
    character_set = encoding
    byte_order = 0 ).

  ostream = g_stream_factory->create_ostream_xstring( string = ex_xml_string ).
  ostream->set_encoding( encoding = g_encoding ).

  CALL TRANSFORMATION id_indent
    SOURCE z_table = z_table
    RESULT XML xml_string
    OPTIONS data_refs = 'heap'
            xml_header = 'full'.

And the following code to deserialize the itab in system B:


  CALL TRANSFORMATION id_indent
    SOURCE XML xml_string
    RESULT z_table = z_table.

The serialization in System A creates an XML document containing <dic:z_structure> tags. If you now try to deserialize this document ("z_table")

in System B, the deserialization fails in case z_table contains DDIC structures which are not known in system B.

Is there any way to have the definition (e.g. type + length) of those ddic structures included in the XML document, so that

a deserialization is possible even if the ddic structure is not known in system B? e.g. Rendered into a XML scheme, or directly as an

attribute into the <dic:..> tag for instance?

Any ideas are appreciated..

Best regards,

Georg

Re: Exchange XML document containing serialized DDIC objects

athavanraja — Sun, 18 Mar 2007 07:27:15 GMT

use FM

call function 'TR_NAMETAB_GET'

exporting

iv_tabname = 'SLFIGHT'

iv_get_lengths_in_charmode = ' '

iv_get_texts = 'X'

importing

et_dfies = lt_dfies

exceptions

not_found = 1

others = 2.

if sy-subrc <> 0.

*--- Do nothing in this particular case

endif.

to get the table definition and use call transformation to convert this itab to xml to get the table definition details.

Regards

Raja

Re: Exchange XML document containing serialized DDIC objects

Former Member — Fri, 23 Mar 2007 11:34:34 GMT

Hello Raja,

many thanks first for your answer. I tried the FM and got a table with the definition details I want.

Unfortunately, I'm not really sure, how to continue working with the definition details. There are still some questions open:

- How do I proficient include these table details into my xml with my original table z_table? Would it be possible to include the table details in a way, that a "call transformation" can easily deserialize my z_table with this table details?

- How do I convert the lt_dfies table definition details back to a ddic object that I can use? Can this be done in memory only, so that I don't have to create real ddic objects on the target system?

Many thanks and kind regards, Oliver<b></b><b></b>