CReferenceEntityField::__construct

public function __construct($name, CBaseEntity $entity, CBaseEntity $refEntity, $reference, $parameters = array())
{
	parent::__construct($name, $refEntity->getName(), $entity);

	$this->refEntity = $refEntity;

	$this->reference = $reference;

	if (isset($parameters['join_type']))
	{
		$join_type = strtoupper($parameters['join_type']);

		if (in_array($join_type, array('LEFT', 'INNER', 'RIGHT'), true))
		{
			$this->join_type = $join_type;
		}
	}
}