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ConstraintValidatorFactory.php
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ConstraintValidatorFactory.php
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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Validator;
use Symfony\Component\Validator\ConstraintValidatorFactoryInterface;
use Symfony\Component\Validator\Constraint;
/**
* Default implementation of the ConstraintValidatorFactoryInterface.
*
* This enforces the convention that the validatedBy() method on any
* Constrain will return the class name of the ConstraintValidator that
* should validate the Constraint.
*/
class ConstraintValidatorFactory implements ConstraintValidatorFactoryInterface
{
protected $validators = array();
/**
* {@inheritDoc}
*/
public function getInstance(Constraint $constraint)
{
$className = $constraint->validatedBy();
if (!isset($this->validators[$className])) {
$this->validators[$className] = new $className();
}
return $this->validators[$className];
}
}