eZ\Publish\Core\Persistence\TransformationProcessor\DefinitionBased::getRules PHP Method

    protected function getRules()
    {
        if ($this->compiledRules === null) {
            $rules = array();
            foreach ($this->ruleFiles as $file) {
                $rules = array_merge($rules, $this->parser->parse($file));
            }
            $this->compiledRules = $this->compiler->compile($rules);
        }
        return $this->compiledRules;
    }