[Security] Implemented the Serializable interface in the Role class

Author: stof

src/Symfony/Component/Security/CHANGELOG.md

@@ -4,6 +4,7 @@ CHANGELOG
 2.1.0
 -----
 
+ * Added the Serializable interface on the Role class
  * [BC BREAK] The signature of ExceptionListener has changed
  * changed the HttpUtils constructor signature to take a UrlGenerator and a UrlMatcher instead of a Router
  * EncoderFactoryInterface::getEncoder() can now also take a class name as an argument

src/Symfony/Component/Security/Core/Role/Role.php

@@ -17,7 +17,7 @@
  *
  * @author Fabien Potencier <fabien@symfony.com>
  */
-class Role implements RoleInterface
+class Role implements RoleInterface, \Serializable
 {
  private $role;
 
@@ -38,4 +38,20 @@ public function getRole()
  {
  return $this->role;
  }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function serialize()
+ {
+ return serialize($this->role);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function unserialize($serialized)
+ {
+ $this->role = unserialize($serialized);
+ }
 }