code: private QueryParameters readCachedValue(int index) {
          QueryParameters result = null;
  
          if (generatedCacheMap.containsKey(index) == true) {
              result = generatedCacheMap.get(index);
          } else if (resultSetCacheMap.containsKey(index) == true) {
              result = resultSetCacheMap.get(index);
          }
  
          return result;
      }
docs: Reads cached values from {@link #generatedCacheMap} (first) and {@link #resultSetCacheMap} (second).
  
  @param index row index which should be read
  @return value from cache, or null if it is not present in cache.