[2.0] Some hydration simplifications and cleanups.

COPYRIGHT

@@ -19,15 +19,6 @@ Url:       http://www.symfony-project.org
 Copyright: Fabien Potencier
 License:   MIT - see LICENSE file
 
-Spyc
-----
-
-Doctrine contains a port of the Spyc software
-
-Url:       http://spyc.sourceforge.net/
-Copyright: 2005-2006 Chris Wanstrath
-License:   MIT - http://www.opensource.org/licenses/mit-license.php
-
 Zend Framework
 --------------
 

lib/Doctrine/ORM/Events.php

@@ -92,6 +92,10 @@ final class Events
      * into the current EntityManager from the database or after the refresh operation
      * has been applied to it.
      * 
+     * Note that the postLoad event occurs for an entity before any associations have been
+     * initialized. Therefore it is not safe to access associations in a postLoad callback
+     * or event handler.
+     * 
      * This is an entity lifecycle event.
      * 
      * @var string

lib/Doctrine/ORM/Internal/Hydration/AbstractHydrator.php

@@ -162,7 +162,10 @@ abstract class AbstractHydrator
     /**
      * Gets the row container used during row-by-row hydration through {@link iterate()}.
      */
-    abstract protected function _getRowContainer();
+    protected function _getRowContainer()
+    {
+        return array();        
+    }
 
     /**
      * Processes a row of the result set.

lib/Doctrine/ORM/Internal/Hydration/ArrayHydrator.php

@@ -228,10 +228,4 @@ class ArrayHydrator extends AbstractHydrator
         }
         return $this->_ce[$className];
     }
-
-    /** {@inheritdoc} */
-    protected function _getRowContainer()
-    {
-        return array();
-    }
 }
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lib/Doctrine/ORM/Internal/Hydration/HydrationException.php

@@ -8,4 +8,10 @@ class HydrationException extends \Doctrine\Common\DoctrineException
     {
         return new self("The result returned by the query was not unique.");
     }
+    
+    public static function parentObjectOfRelationNotFound($alias, $parentAlias)
+    {
+        return new self("The parent object of entity result with alias '$alias' was not found."
+                . " The parent alias is '$parentAlias'.");
+    }
 }
\ No newline at end of file