vendor/doctrine/lib/Doctrine/ORM/Mapping/ClassMetadata.php
changeset 0 7f95f8617b0b
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/doctrine/lib/Doctrine/ORM/Mapping/ClassMetadata.php	Sat Sep 24 15:40:41 2011 +0200
@@ -0,0 +1,346 @@
+<?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\Mapping;
+
+use ReflectionClass, ReflectionProperty;
+
+/**
+ * A <tt>ClassMetadata</tt> instance holds all the object-relational mapping metadata
+ * of an entity and it's associations.
+ * 
+ * Once populated, ClassMetadata instances are usually cached in a serialized form.
+ *
+ * <b>IMPORTANT NOTE:</b>
+ *
+ * The fields of this class are only public for 2 reasons:
+ * 1) To allow fast READ access.
+ * 2) To drastically reduce the size of a serialized instance (private/protected members
+ *    get the whole class name, namespace inclusive, prepended to every property in
+ *    the serialized representation).
+ *
+ * @author Roman Borschel <roman@code-factory.org>
+ * @author Jonathan H. Wage <jonwage@gmail.com>
+ * @since 2.0
+ */
+class ClassMetadata extends ClassMetadataInfo
+{
+    /**
+     * The ReflectionProperty instances of the mapped class.
+     *
+     * @var array
+     */
+    public $reflFields = array();
+    
+    /**
+     * The prototype from which new instances of the mapped class are created.
+     * 
+     * @var object
+     */
+    private $_prototype;
+
+    /**
+     * Initializes a new ClassMetadata instance that will hold the object-relational mapping
+     * metadata of the class with the given name.
+     *
+     * @param string $entityName The name of the entity class the new instance is used for.
+     */
+    public function __construct($entityName)
+    {
+        $this->reflClass = new ReflectionClass($entityName);
+        $this->namespace = $this->reflClass->getNamespaceName();
+        $this->table['name'] = $this->reflClass->getShortName();
+        parent::__construct($this->reflClass->getName()); // do not use $entityName, possible case-problems
+    }
+
+    /**
+     * Gets the ReflectionPropertys of the mapped class.
+     *
+     * @return array An array of ReflectionProperty instances.
+     */
+    public function getReflectionProperties()
+    {
+        return $this->reflFields;
+    }
+
+    /**
+     * Gets a ReflectionProperty for a specific field of the mapped class.
+     *
+     * @param string $name
+     * @return ReflectionProperty
+     */
+    public function getReflectionProperty($name)
+    {
+        return $this->reflFields[$name];
+    }
+
+    /**
+     * Gets the ReflectionProperty for the single identifier field.
+     *
+     * @return ReflectionProperty
+     * @throws BadMethodCallException If the class has a composite identifier.
+     */
+    public function getSingleIdReflectionProperty()
+    {
+        if ($this->isIdentifierComposite) {
+            throw new \BadMethodCallException("Class " . $this->name . " has a composite identifier.");
+        }
+        return $this->reflFields[$this->identifier[0]];
+    }
+    
+    /**
+     * Validates & completes the given field mapping.
+     *
+     * @param array $mapping  The field mapping to validated & complete.
+     * @return array  The validated and completed field mapping.
+     * 
+     * @throws MappingException
+     */
+    protected function _validateAndCompleteFieldMapping(array &$mapping)
+    {
+        parent::_validateAndCompleteFieldMapping($mapping);
+
+        // Store ReflectionProperty of mapped field
+        $refProp = $this->reflClass->getProperty($mapping['fieldName']);
+        $refProp->setAccessible(true);
+        $this->reflFields[$mapping['fieldName']] = $refProp;
+    }
+
+    /**
+     * Extracts the identifier values of an entity of this class.
+     * 
+     * For composite identifiers, the identifier values are returned as an array
+     * with the same order as the field order in {@link identifier}.
+     *
+     * @param object $entity
+     * @return array
+     */
+    public function getIdentifierValues($entity)
+    {
+        if ($this->isIdentifierComposite) {
+            $id = array();
+            foreach ($this->identifier as $idField) {
+                $value = $this->reflFields[$idField]->getValue($entity);
+                if ($value !== null) {
+                    $id[$idField] = $value;
+                }
+            }
+            return $id;
+        } else {
+            $value = $this->reflFields[$this->identifier[0]]->getValue($entity);
+            if ($value !== null) {
+                return array($this->identifier[0] => $value);
+            }
+            return array();
+        }
+    }
+
+    /**
+     * Populates the entity identifier of an entity.
+     *
+     * @param object $entity
+     * @param mixed $id
+     * @todo Rename to assignIdentifier()
+     */
+    public function setIdentifierValues($entity, array $id)
+    {
+        foreach ($id as $idField => $idValue) {
+            $this->reflFields[$idField]->setValue($entity, $idValue);
+        }
+    }
+
+    /**
+     * Sets the specified field to the specified value on the given entity.
+     *
+     * @param object $entity
+     * @param string $field
+     * @param mixed $value
+     */
+    public function setFieldValue($entity, $field, $value)
+    {
+        $this->reflFields[$field]->setValue($entity, $value);
+    }
+
+    /**
+     * Gets the specified field's value off the given entity.
+     *
+     * @param object $entity
+     * @param string $field
+     */
+    public function getFieldValue($entity, $field)
+    {
+        return $this->reflFields[$field]->getValue($entity);
+    }
+
+    /**
+     * Stores the association mapping.
+     *
+     * @param AssociationMapping $assocMapping
+     */
+    protected function _storeAssociationMapping(array $assocMapping)
+    {
+        parent::_storeAssociationMapping($assocMapping);
+
+        // Store ReflectionProperty of mapped field
+        $sourceFieldName = $assocMapping['fieldName'];
+
+        $refProp = $this->reflClass->getProperty($sourceFieldName);
+        $refProp->setAccessible(true);
+        $this->reflFields[$sourceFieldName] = $refProp;
+    }
+
+    /**
+     * Creates a string representation of this instance.
+     *
+     * @return string The string representation of this instance.
+     * @todo Construct meaningful string representation.
+     */
+    public function __toString()
+    {
+        return __CLASS__ . '@' . spl_object_hash($this);
+    }
+    
+    /**
+     * Determines which fields get serialized.
+     *
+     * It is only serialized what is necessary for best unserialization performance.
+     * That means any metadata properties that are not set or empty or simply have
+     * their default value are NOT serialized.
+     * 
+     * Parts that are also NOT serialized because they can not be properly unserialized:
+     *      - reflClass (ReflectionClass)
+     *      - reflFields (ReflectionProperty array)
+     * 
+     * @return array The names of all the fields that should be serialized.
+     */
+    public function __sleep()
+    {
+        // This metadata is always serialized/cached.
+        $serialized = array(
+            'associationMappings',
+            'columnNames', //TODO: Not really needed. Can use fieldMappings[$fieldName]['columnName']
+            'fieldMappings',
+            'fieldNames',
+            'identifier',
+            'isIdentifierComposite', // TODO: REMOVE
+            'name',
+            'namespace', // TODO: REMOVE
+            'table',
+            'rootEntityName',
+            'idGenerator', //TODO: Does not really need to be serialized. Could be moved to runtime.
+        );
+
+        // The rest of the metadata is only serialized if necessary.
+        if ($this->changeTrackingPolicy != self::CHANGETRACKING_DEFERRED_IMPLICIT) {
+            $serialized[] = 'changeTrackingPolicy';
+        }
+
+        if ($this->customRepositoryClassName) {
+            $serialized[] = 'customRepositoryClassName';
+        }
+
+        if ($this->inheritanceType != self::INHERITANCE_TYPE_NONE) {
+            $serialized[] = 'inheritanceType';
+            $serialized[] = 'discriminatorColumn';
+            $serialized[] = 'discriminatorValue';
+            $serialized[] = 'discriminatorMap';
+            $serialized[] = 'parentClasses';
+            $serialized[] = 'subClasses';
+        }
+
+        if ($this->generatorType != self::GENERATOR_TYPE_NONE) {
+            $serialized[] = 'generatorType';
+            if ($this->generatorType == self::GENERATOR_TYPE_SEQUENCE) {
+                $serialized[] = 'sequenceGeneratorDefinition';
+            }
+        }
+
+        if ($this->isMappedSuperclass) {
+            $serialized[] = 'isMappedSuperclass';
+        }
+
+        if ($this->containsForeignIdentifier) {
+            $serialized[] = 'containsForeignIdentifier';
+        }
+
+        if ($this->isVersioned) {
+            $serialized[] = 'isVersioned';
+            $serialized[] = 'versionField';
+        }
+
+        if ($this->lifecycleCallbacks) {
+            $serialized[] = 'lifecycleCallbacks';
+        }
+
+        if ($this->namedQueries) {
+            $serialized[] = 'namedQueries';
+        }
+
+        if ($this->isReadOnly) {
+            $serialized[] = 'isReadOnly';
+        }
+
+        return $serialized;
+    }
+
+    /**
+     * Restores some state that can not be serialized/unserialized.
+     * 
+     * @return void
+     */
+    public function __wakeup()
+    {
+        // Restore ReflectionClass and properties
+        $this->reflClass = new ReflectionClass($this->name);
+
+        foreach ($this->fieldMappings as $field => $mapping) {
+            if (isset($mapping['declared'])) {
+                $reflField = new ReflectionProperty($mapping['declared'], $field);
+            } else {
+                $reflField = $this->reflClass->getProperty($field);
+            }
+            $reflField->setAccessible(true);
+            $this->reflFields[$field] = $reflField;
+        }
+
+        foreach ($this->associationMappings as $field => $mapping) {
+            if (isset($mapping['declared'])) {
+                $reflField = new ReflectionProperty($mapping['declared'], $field);
+            } else {
+                $reflField = $this->reflClass->getProperty($field);
+            }
+
+            $reflField->setAccessible(true);
+            $this->reflFields[$field] = $reflField;
+        }
+    }
+    
+    /**
+     * Creates a new instance of the mapped class, without invoking the constructor.
+     * 
+     * @return object
+     */
+    public function newInstance()
+    {
+        if ($this->_prototype === null) {
+            $this->_prototype = unserialize(sprintf('O:%d:"%s":0:{}', strlen($this->name), $this->name));
+        }
+        return clone $this->_prototype;
+    }
+}