/**
  * @return ValidatorValidation
  */
 public function apply(Workflow $workflow)
 {
     if ($this->sourceValidatorFilter) {
         $this->sourceValidatorFilter->reset();
         $workflow->addFilter($this->sourceValidatorFilter);
     }
     if ($this->targetValidatorFilter) {
         $this->targetValidatorFilter->reset();
         $workflow->addFilterAfterConversion($this->targetValidatorFilter);
     }
     return $this;
 }