/**
* Constructor
* @param $name
* @param array $constraints
* @param callable $handler
* @param mixed $defaultValue Default value if field is empty
*/
public function __construct($name, array $constraints, callable $handler, $defaultValue = '')
{
parent::__construct($name, $constraints, $defaultValue);
$this->handler = $handler;
}
/**
* @inheritDoc
* @param int $fieldIndex Position of this field in an iteration of input data
*/
public function __construct($name, array $constraints, $fieldIndex, $defaultValue = '')
{
parent::__construct($name, $constraints, $defaultValue);
$this->fieldIndex = $fieldIndex;
$this->propertyAccessor = PropertyAccess::createPropertyAccessor();
}