Attachments to Doctrine Jira Issue DDC-1412 - https://github.com/doctrine/doctrine2/issues/2036

11071_driverchain.patch

### Eclipse Workspace Patch 1.0
#P LeezyServer
Index: libraries/Doctrine/ORM/Mapping/Driver/DriverChain.php
===================================================================
--- libraries/Doctrine/ORM/Mapping/Driver/DriverChain.php	(revision 6863)
+++ libraries/Doctrine/ORM/Mapping/Driver/DriverChain.php	(working copy)
@@ -40,6 +40,12 @@
      * @var array
      */
     private $_drivers = array();
+    
+    /**
+     * @var Driver
+     * @author armetiz
+     */
+    private $_defaultDriver	= null;
 
     /**
      * Add a nested driver.
@@ -53,6 +59,28 @@
     }
 
     /**
+     * Set a default driver.
+     *
+     * @param Driver $defaultDriver
+     * @author armetiz
+     */
+    public function setDefaultDriver(Driver $defaultDriver)
+    {
+        $this->_defaultDriver	= $defaultDriver;
+    }
+
+    /**
+     * Set a default driver.
+     *
+     * @return Driver
+     * @author armetiz
+     */
+    public function getDefaultDriver()
+    {
+        return $this->_defaultDriver;
+    }
+
+    /**
      * Get the array of nested drivers.
      *
      * @return array $drivers
@@ -76,8 +104,11 @@
                 return;
             }
         }
+        
+        if ( is_null ( $this->_defaultDriver ) )
+	        throw MappingException::classIsNotAValidEntityOrMappedSuperClass($className);
 
-        throw MappingException::classIsNotAValidEntityOrMappedSuperClass($className);
+        $this->_defaultDriver->loadMetadataForClass($className, $metadata);
     }
 
     /**
@@ -119,8 +150,11 @@
                 return $driver->isTransient($className);
             }
         }
-
+        
         // class isTransient, i.e. not an entity or mapped superclass
-        return true;
+        if ( is_null ( $this->_defaultDriver ) )
+      		return true;
+        
+        return $this->_defaultDriver->isTransient($className);
     }
 }
\ No newline at end of file