Kept BC.

lib/Doctrine/ORM/Decorator/EntityManagerDecorator.php

@@ -221,6 +221,14 @@ abstract class EntityManagerDecorator extends ObjectManagerDecorator implements
         return $this->wrapped->getUnitOfWork();
     }
 
+    /**
+     * {@inheritdoc}
+     */
+    public function getHydrator($hydrationMode)
+    {
+        return $this->wrapped->getHydrator($hydrationMode);
+    }
+
     /**
      * {@inheritdoc}
      */

lib/Doctrine/ORM/EntityManager.php

@@ -827,6 +827,23 @@ use Doctrine\Common\Util\ClassUtils;
         return $this->unitOfWork;
     }
 
+    /**
+     * Gets a hydrator for the given hydration mode.
+     *
+     * This method caches the hydrator instances which is used for all queries that don't
+     * selectively iterate over the result.
+     *
+     * @deprecated
+     *
+     * @param int $hydrationMode
+     *
+     * @return \Doctrine\ORM\Internal\Hydration\AbstractHydrator
+     */
+    public function getHydrator($hydrationMode)
+    {
+        return $this->newHydrator($hydrationMode);
+    }
+
     /**
      * Create a new instance for the given hydration mode.
      *

lib/Doctrine/ORM/EntityManagerInterface.php

@@ -51,6 +51,7 @@ interface EntityManagerInterface extends ObjectManager
     public function getConfiguration();
     public function isOpen();
     public function getUnitOfWork();
+    public function getHydrator($hydrationMode);
     public function newHydrator($hydrationMode);
     public function getProxyFactory();
     public function getFilters();