--- /dev/null
+<?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 MIT license. For more information, see
+ * <http://www.doctrine-project.org>.
+ */
+
+namespace Doctrine\ORM\Id;
+
+use Serializable, Doctrine\ORM\EntityManager;
+
+/**
+ * Represents an ID generator that uses the database UUID expression
+ *
+ * @since 2.3
+ * @author Maarten de Keizer <m.de.keizer@markei.nl>
+ */
+class UuidGenerator extends AbstractIdGenerator
+{
+
+ /**
+ * Generates an ID for the given entity.
+ *
+ * @param Doctrine\ORM\EntityManager $em The EntityManager to user
+ * @param object $entity
+ * @return string The generated value.
+ * @override
+ */
+ public function generate(EntityManager $em, $entity)
+ {
+ $conn = $em->getConnection();
+ $sql = 'SELECT ' . $conn->getDatabasePlatform()->getGuidExpression();
+ return $conn->query($sql)->fetchColumn(0);
+ }
+
+}