docs: protected boolean cascadeDeleteFor(ObjectReferenceDescriptor ord)
      {
          boolean result;
          Boolean runtimeSetting = (Boolean) runtimeCascadeDeleteMap.get(ord);
          if(runtimeSetting == null)
          {
              /*
              arminw: Here we use the auto-delete flag defined in metadata
              */
              result = ord.getCascadingDelete() == ObjectReferenceDescriptor.CASCADE_OBJECT;
          }
          else
          {
              result = runtimeSetting.booleanValue();
          }
          return result;
      }