WD Java , adaptive RFC beginnes question

Question

hi folks,
i am  new to WD Java and have a very simple question.
after getting data back from a RFC-Call to R/3 backend i call
wdContext.nodeOutput().invalidate();
to have my result in the context node, but i never see the result in my context node after this call.
the funny thing is i have the result in my internal tables but when i try to get the data with a call like:
if (wdContext.nodeEs_Visibility().currentEs_VisibilityElement().getHead_V() == "01")
- where my node in Output is ES_Visibility and the Element is Head_V  -
i don't get a result?
whats my fault behind that?
best regards oliver

Answer 1

Hi,
i put the field which value i want to check into a text-field on the screen and i can see the value is set correctly by my bapi call, my only problem ist to chekc againt this values which i do with the following coding, here comes the total coding:
as you see below , the statement
          if (wdContext.nodeEs_Visibility().currentEs_VisibilityElement().getHead_V() == "01")
does not work but when i bind this element to a text view i can see thet the field has 01 as value????
in wd abap these things are that easier gg.
best regards so far !!!!
public void read( java.lang.String kunnr )
    //@@begin read()
          IPrivateOrview.IVisElement element;
//          element = wdContext.currentVisElement();
          orview = new Z_Sd_Orview_Wd_0001_Input();
          orview_out = new Z_Sd_Orview_Wd_0001_Output();
          orview.setIv_Kunnr(kunnr);
          wdContext.nodeOrview().bind(orview);
          try {
               wdContext
                    .nodeOrview()
                    .currentOrviewElement()
                    .modelObject()
                    .execute();
          } catch (Exception ex) {
          wdContext.nodeOutput().invalidate();
          wdContext.nodeEs_Visibility().invalidate();
          if (wdContext.nodeEs_Visibility().currentEs_VisibilityElement().getHead_V() == "01")
                         wdContext.currentContextElement().setHead_v(WDVisibility.NONE);                          
                                        } else {
                                             wdContext.currentContextElement().setHead_v(WDVisibility.VISIBLE);
    //@@end