--- /dev/null
+<?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\Mapping\Factory;
+
+/**
+ * Metadata factory that does not store metadata.
+ *
+ * This implementation is useful if you want to validate values against
+ * constraints only and you don't need to add constraints to classes and
+ * properties.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class BlackHoleMetadataFactory implements MetadataFactoryInterface
+{
+ /**
+ * {@inheritdoc}
+ */
+ public function getMetadataFor($value)
+ {
+ throw new \LogicException('This class does not support metadata.');
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function hasMetadataFor($value)
+ {
+ return false;
+ }
+}