How to read data with BDC

Question

In order to search notification, I recorded a script with SHBD . This script go to IW28 and do a simple search. It works but I want to have the result to do another treatment.
Is it possible to have the data showed in a list?
This is my script :
FUNCTION z_pm_web_liste_avis.
*"*"Interface locale :
*"  EXPORTING
*"     REFERENCE(AVIS) TYPE  ZPM_AVIS
   PERFORM bdc_dynpro      USING 'RIQMEL20' '1000'.
   PERFORM bdc_field       USING 'BDC_CURSOR'
                                 'SELSCHEM'.
   PERFORM bdc_field       USING 'BDC_OKCODE'
                                 '=ONLI'.
   PERFORM bdc_field       USING 'DY_OFN'
                                 'X'.
   PERFORM bdc_field       USING 'DY_IAR'
                                 'X'.
   PERFORM bdc_field       USING 'DATUV'
                                 '14.03.2014'.
   PERFORM bdc_field       USING 'DATUB'
                                 '12.06.2014'.
   PERFORM bdc_field       USING 'MZEIT-LOW'
                                 '00:00:00'.
   PERFORM bdc_field       USING 'MZEIT-HIGH'
                                 '00:00:00'.
   PERFORM bdc_field       USING 'AUZTV-LOW'
                                 '00:00:00'.
   PERFORM bdc_field       USING 'AUZTV-HIGH'
                                 '00:00:00'.
   PERFORM bdc_field       USING 'AUZTB-LOW'
                                 '00:00:00'.
   PERFORM bdc_field       USING 'AUZTB-HIGH'
                                 '00:00:00'.
   PERFORM bdc_field       USING 'VARIANT'
                                 '/AAI_PM_REL'.
   PERFORM bdc_dynpro      USING 'SAPMSSY0' '0120'.
   PERFORM bdc_field       USING 'BDC_CURSOR'
                                 '04/03'.
   PERFORM bdc_field       USING 'BDC_OKCODE'
                                 '=BACK'.
   PERFORM bdc_dynpro      USING 'RIQMEL20' '1000'.
   PERFORM bdc_field       USING 'BDC_OKCODE'
                                 '/EE'.
   PERFORM bdc_field       USING 'BDC_CURSOR'
                                 'SELSCHEM'.
   PERFORM bdc_transaction USING 'IW28'.
   COMMIT WORK.
ENDFUNCTION.
*&      Form  bdc_dynpro
*       text
*      -->PROGRAM    text
*      -->DYNPRO     text
FORM bdc_dynpro USING program dynpro.
   DATA gs_bdcdata TYPE bdcdata.
   CLEAR gs_bdcdata.
   gs_bdcdata-program  = program.
   gs_bdcdata-dynpro   = dynpro.
   gs_bdcdata-dynbegin = 'X'.
   APPEND gs_bdcdata TO gt_bdcdata.
ENDFORM.                    "BDC_DYNPRO
*&      Form  bdc_field
*       text
*      -->FNAM       text
*      -->FVAL       text
FORM bdc_field USING fnam fval.
   DATA gs_bdcdata TYPE bdcdata.
   CLEAR gs_bdcdata.
   gs_bdcdata-fnam  = fnam.
   gs_bdcdata-fval  = fval.
   APPEND gs_bdcdata TO gt_bdcdata.
ENDFORM.                    "BDC_FIELD
*&      Form  bdc_transaction
*       text
*      -->TCODE      text
FORM bdc_transaction USING tcode.
   DATA: messtab TYPE TABLE OF bdcmsgcoll WITH HEADER LINE.
   DATA: l_mstring(480).
   DATA: l_subrc LIKE sy-subrc.
   REFRESH messtab.
   CALL TRANSACTION tcode USING gt_bdcdata
                    MODE   'A'
                    UPDATE 'S'
                    MESSAGES INTO messtab.
   l_subrc = sy-subrc.
   WRITE: / 'CALL_TRANSACTION',
            tcode,
            'returncode:'(i05),
            l_subrc,
            'RECORD:',
            sy-index.
   LOOP AT messtab.
     MESSAGE ID     messtab-msgid
             TYPE   messtab-msgtyp
             NUMBER messtab-msgnr
             INTO l_mstring
             WITH messtab-msgv1
                  messtab-msgv2
                  messtab-msgv3
                  messtab-msgv4.
     WRITE: / messtab-msgtyp, l_mstring(250).
   ENDLOOP.
   SKIP.
   REFRESH gt_bdcdata.
ENDFORM.                    "BDC_TRANSACTION

Answer 1

It turns out, that I needed to serialize the XML on the server and read it as Blob. Like this:
1    final Statement statement = connection.createStatement() ;
2    final String sql = String.format("select xmlserialize(content xml_content_column as blob encoding 'UTF-8') from %s where key='%s'", table, key ) ;
3   ResultSet resultSet = statement.executeQuery( sql ) ;
4   String result = null ;
5    while(resultSet.next()) {
6   Blob blob = resultSet.getBlob( 1 );
7   InputStream inputStream = blob.getBinaryStream();
8   result = new Scanner( inputStream ).useDelimiter( "\\A" ).next();
9   inputStream.close();
10   blob.free();
11   }
12   resultSet.close();
13   statement.close();
14
15   System.out.println( result );
16    return result ;
17
Then it works. Still, can't get it work with XMLType in resultset.On the client unwrapping XML blows up when trying to switch to different XML schema. JDBC/XDB problem?