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Procedure documentationDefining the Method for Calling the Query Locate this document in the navigation structure

 

In the tutorial application, you have to define a method that calls the query. In this method, you have to obtain the ID of the selected customer and provide this value to the composite class. You then have to call the query class.

Procedure

  1. In the Laptop UI explorer, expand the servappdevelopment component.

  2. Expand the nodes   Web Dynpro   Components   CustomerComp  .

  3. Double-click Component Controller.

  4. Choose the Methods tab.

  5. Choose New.

  6. In the New Method wizard, create a method with the name fireQuery.

  7. In the Methods tab, click fireQuery with the secondary mouse button and choose   Navigate to   Implementation.  

  8. Enter the following code:

fireQuery method

public void fireQuery()

{

//@@begin fireQuery()

int Sel = wdContext.nodeCUSTOMERS_CUSTOMERHEADER().getLeadSelection();

if (Sel > -1)

{

Qid = wdContext.nodeCUSTOMERS_CUSTOMERHEADER(). getCUSTOMERS_CUSTOMERHEADERElementAt(Sel).getCUSTOMERID();

SQ.getQueryInput().setCUSTOMERID(Qid);

}

try {

SQ.execute();

} catch (CMIException e) {

e.printStackTrace();

}

wdContext.nodeQueryResult().invalidate();

//@@end

}