diff -r 000000000000 -r 7f95f8617b0b vendor/doctrine-common/lib/Doctrine/Common/Persistence/Mapping/ClassMetadata.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/doctrine-common/lib/Doctrine/Common/Persistence/Mapping/ClassMetadata.php	Sat Sep 24 15:40:41 2011 +0200
@@ -0,0 +1,132 @@
+<?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\Common\Persistence\Mapping;
+
+/**
+ * Contract for a Doctrine persistence layer ClassMetadata class to implement.
+ *
+ * @license http://www.opensource.org/licenses/lgpl-license.php LGPL
+ * @link    www.doctrine-project.org
+ * @since   2.1
+ * @author  Benjamin Eberlei <kontakt@beberlei.de>
+ * @author  Jonathan Wage <jonwage@gmail.com>
+ */
+interface ClassMetadata
+{
+    /**
+     * Get fully-qualified class name of this persistent class.
+     * 
+     * @return string
+     */
+    public function getName();
+    
+    /**
+     * Gets the mapped identifier field name.
+     * 
+     * The returned structure is an array of the identifier field names.
+     *
+     * @return array
+     */
+    public function getIdentifier();
+
+    /**
+     * Gets the ReflectionClass instance for this mapped class.
+     *
+     * @return ReflectionClass
+     */
+    public function getReflectionClass();
+
+    /**
+     * Checks if the given field name is a mapped identifier for this class.
+     *
+     * @param string $fieldName
+     * @return boolean
+     */
+    public function isIdentifier($fieldName);
+
+    /**
+     * Checks if the given field is a mapped property for this class.
+     *
+     * @param string $fieldName 
+     * @return boolean
+     */
+    public function hasField($fieldName);
+
+    /**
+     * Checks if the given field is a mapped association for this class.
+     *
+     * @param string $fieldName
+     * @return boolean
+     */
+    public function hasAssociation($fieldName);
+
+    /**
+     * Checks if the given field is a mapped single valued association for this class.
+     *
+     * @param string $fieldName
+     * @return boolean
+     */
+    public function isSingleValuedAssociation($fieldName);
+
+    /**
+     * Checks if the given field is a mapped collection valued association for this class.
+     *
+     * @param string $fieldName
+     * @return boolean
+     */
+    public function isCollectionValuedAssociation($fieldName);
+    
+    /**
+     * A numerically indexed list of field names of this persistent class.
+     * 
+     * This array includes identifier fields if present on this class.
+     * 
+     * @return array
+     */
+    public function getFieldNames();
+    
+    /**
+     * A numerically indexed list of association names of this persistent class.
+     * 
+     * This array includes identifier associations if present on this class.
+     * 
+     * @return array
+     */
+    public function getAssociationNames();
+    
+    /**
+     * Returns a type name of this field.
+     * 
+     * This type names can be implementation specific but should at least include the php types:
+     * integer, string, boolean, float/double, datetime.
+     * 
+     * @param string $fieldName
+     * @return string
+     */
+    public function getTypeOfField($fieldName);
+    
+    /**
+     * Returns the target class name of the given association.
+     * 
+     * @param string $assocName
+     * @return string
+     */
+    public function getAssociationTargetClass($assocName);
+}
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