--- /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;
+
+/**
+ * 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);
+ }
+}