diff -r 000000000000 -r 7f95f8617b0b vendor/doctrine/lib/Doctrine/ORM/OptimisticLockException.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/doctrine/lib/Doctrine/ORM/OptimisticLockException.php	Sat Sep 24 15:40:41 2011 +0200
@@ -0,0 +1,64 @@
+<?php
+/*
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This software consists of voluntary contributions made by many individuals
+ * and is licensed under the LGPL. For more information, see
+ * <http://www.doctrine-project.org>.
+ */
+
+namespace Doctrine\ORM;
+
+/**
+ * An OptimisticLockException is thrown when a version check on an object
+ * that uses optimistic locking through a version field fails.
+ *
+ * @author Roman Borschel <roman@code-factory.org>
+ * @author Benjamin Eberlei <kontakt@beberlei.de>
+ * @since 2.0
+ */
+class OptimisticLockException extends ORMException
+{
+    private $entity;
+
+    public function __construct($msg, $entity)
+    {
+        parent::__construct($msg);
+        $this->entity = $entity;
+    }
+
+    /**
+     * Gets the entity that caused the exception.
+     *
+     * @return object
+     */
+    public function getEntity()
+    {
+        return $this->entity;
+    }
+
+    public static function lockFailed($entity)
+    {
+        return new self("The optimistic lock on an entity failed.", $entity);
+    }
+
+    public static function lockFailedVersionMissmatch($entity, $expectedLockVersion, $actualLockVersion)
+    {
+        return new self("The optimistic lock failed, version " . $expectedLockVersion . " was expected, but is actually ".$actualLockVersion, $entity);
+    }
+
+    public static function notVersioned($entityName)
+    {
+        return new self("Cannot obtain optimistic lock on unversioned entity " . $entityName, null);
+    }
+}
\ No newline at end of file