code: public Object process(BinaryEntry entry) {
          Binary binValue = entry.getBinaryValue();
          if (binValue == null) {
              return binValue;
          }
  
          PofValue pofValue = getPofValue(binValue);
          Number oldValue = (Number) get(pofValue);
          if (oldValue == null) {
              oldValue = Numbers.getDefaultValue(numInc.getClass());
          }
  
          Number newValue = Numbers.add(oldValue, numInc);
          set(pofValue, newValue);
          entry.updateBinaryValue(pofValue.applyChanges());
  
          return fPostInc ? newValue : oldValue;
      }
docs: Process specified entry and return the result.
  
  @param entry entry to process
  
  @return processing result