Classes List

Symfony\Component\Validator\ConstraintValidatorFactory

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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\Constraints\ExpressionValidator;

/** * Default implementation of the ConstraintValidatorFactoryInterface. * * This enforces the convention that the validatedBy() method on any * Constraint will return the class name of the ConstraintValidator that * should validate the Constraint. * * @author Bernhard Schussek <bschussek@gmail.com> */
class ConstraintValidatorFactory implements ConstraintValidatorFactoryInterface
{
    protected $validators = array();

    public function __construct()
    {
    }

    /** * {@inheritdoc} */
    public function getInstance(Constraint $constraint)
    {
        $className = $constraint->validatedBy();

        if (!isset($this->validators[$className])) {
            $this->validators[$className] = 'validator.expression' === $className
                ? new ExpressionValidator()
                : new $className();
        }

        return $this->validators[$className];
    }
}