code: public QueryParameters update(int index, QueryParameters params) throws SQLException {
          AssertUtils.assertNotNull(params, "Element cannot be null, but values inside of it - can");
  
          if (this.type == Type.READ_ONLY_FORWARD || this.type == Type.READ_ONLY_SCROLL) {
              throw new MjdbcSQLException("This Lazy query output cache is initialized as read-only - therefore cannot be updated.");
          }
  
          QueryParameters result = get(index);
  
          if (this.type == Type.UPDATE_FORWARD) {
              if (this.currentIndex == index) {
                  updateResultSetCurrentLine(getCurrentResultSet(), params);
              } else if (this.currentIndex + 1 == index) {
                  updateResultSetRow((index + 1) - generatedCacheMap.size(), params);
              } else {
                  throw new MjdbcRuntimeException("Only current/next element can be updated!");
              }
  
              getCurrentResultSet().updateRow();
  
              this.currentIndex = index;
          } else if (this.type == Type.UPDATE_SCROLL) {
  
              updateResultSetRow((index + 1) - generatedCacheMap.size(), params);
              getCurrentResultSet().updateRow();
          } else {
              throw new MjdbcSQLException("This Lazy query output cache was initialized with unknown type");
          }
  
          return result;
      }
docs: Updates specified row in ResultSet
  
  @param index  index of row which would be updated
  @param params source of values with which row would be updated
  @return value before update
  @throws SQLException