/**
  * @author Krzysztof Bednarczyk
  * @return array
  */
 public function jsonSerialize()
 {
     $this->setParam("columns", array_values($this->columns));
     $this->setParam("rows", array_values($this->rows));
     return parent::jsonSerialize();
 }
 /**
  * @author Krzysztof Bednarczyk
  * @return array
  */
 public function jsonSerialize()
 {
     $this->setParam("items", array_values($this->items));
     return parent::jsonSerialize();
     // TODO: Change the autogenerated stub
 }