IDT SDK - getting object - table(s) mapping

Question

Hello,
How do I find out which tables (in data foundation) using object in business layer?
I try open universe business layer (blx) via sdk and get extra tables, but always return empty list.
My code:
public void getMapping() {
         SlContext context = null;
         IEnterpriseSession enterpriseSession = null;
         try {
             context = SlContext.create();
             enterpriseSession = CrystalEnterprise.getSessionMgr().logon(CMS_LOG_USER, CMS_LOG_PASS, CMS_LOG_HOST, CMS_AUTH_MODE);
             context.getService(CmsSessionService.class).setSession(enterpriseSession);
             LocalResourceService service = context.getService(LocalResourceService.class);
             RelationalBusinessLayer businessLayer = (RelationalBusinessLayer) service.load(BLX_PATH);
             RootFolder rootFolder = businessLayer.getRootFolder();
             printObjectMapping(rootFolder);
             service.close(businessLayer);
         } catch (SDKException e) {
             System.out.println("Error: " + e.getMessage());
     protected static void printObjectMapping(BlItem biItem) {
         if (biItem instanceof BusinessObject) {
             BusinessObject elem = (BusinessObject) biItem;
             RelationalBinding binding = (RelationalBinding) elem.getBinding();
             System.out.println("Object " + elem.getName() + " using tables: " + binding.getExtraTables());
         if (biItem instanceof BlContainer) {
             for (BlItem item : ((BlContainer) biItem).getChildren()) {
                 printObjectMapping(item);
BO 4.1 SP1
Any ideas?

Answer 1

It is in the com.sap.sl.sdk.authoring.businesslayer package.
You obtain the service as you do the other SL services, with the SlContext.getService() method:
BusinessLayerService blservice = myContext.getService(BusinessLayerService.class);
Like all the other components of the SL SDK, it is referenced by an entry in the manifest of the all-encompassing sl_sdk.jar.  We've split (or hacked) this apart to put the individual components into our maven build and the internal jar is com.sap.sl.sdk.authoring.jar.  Not sure how you've configured your build but you should be able to find the class.
Hope this helps.