text:
<?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;

use Doctrine\DBAL\LockMode,
    Doctrine\ORM\Query\Parser,
    Doctrine\ORM\Query\QueryException;

/**
 * A Query object represents a DQL query.
 *
 * @since   1.0
 * @author  Guilherme Blanco <guilhermeblanco@hotmail.com>
 * @author  Konsta Vesterinen <kvesteri@cc.hut.fi>
 * @author  Roman Borschel <roman@code-factory.org>
 */
final class Query extends AbstractQuery
{
    /* Query STATES */
    /**
     * A query object is in CLEAN state when it has NO unparsed/unprocessed DQL parts.
     */
    const STATE_CLEAN  = 1;
    /**
     * A query object is in state DIRTY when it has DQL parts that have not yet been
     * parsed/processed. This is automatically defined as DIRTY when addDqlQueryPart
     * is called.
     */
    const STATE_DIRTY = 2;

    /* Query HINTS */
    /**
     * The refresh hint turns any query into a refresh query with the result that
     * any local changes in entities are overridden with the fetched values.
     *
     * @var string
     */
    const HINT_REFRESH = 'doctrine.refresh';

    /**
     * Internal hint: is set to the proxy entity that is currently triggered for loading
     *
     * @var string
     */
    const HINT_REFRESH_ENTITY = 'doctrine.refresh.entity';

    /**
     * The forcePartialLoad query hint forces a particular query to return
     * partial objects.
     *
     * @var string
     * @todo Rename: HINT_OPTIMIZE
     */
    const HINT_FORCE_PARTIAL_LOAD = 'doctrine.forcePartialLoad';
    /**
     * The includeMetaColumns query hint causes meta columns like foreign keys and
     * discriminator columns to be selected and returned as part of the query result.
     *
     * This hint does only apply to non-object queries.
     *
     * @var string
     */
    const HINT_INCLUDE_META_COLUMNS = 'doctrine.includeMetaColumns';

    /**
     * An array of class names that implement Doctrine\ORM\Query\TreeWalker and
     * are iterated and executed after the DQL has been parsed into an AST.
     *
     * @var string
     */
    const HINT_CUSTOM_TREE_WALKERS = 'doctrine.customTreeWalkers';

    /**
     * A string with a class name that implements Doctrine\ORM\Query\TreeWalker
     * and is used for generating the target SQL from any DQL AST tree.
     *
     * @var string
     */
    const HINT_CUSTOM_OUTPUT_WALKER = 'doctrine.customOutputWalker';

    //const HINT_READ_ONLY = 'doctrine.readOnly';

    /**
     * @var string
     */
    const HINT_INTERNAL_ITERATION = 'doctrine.internal.iteration';

    /**
     * @var string
     */
    const HINT_LOCK_MODE = 'doctrine.lockMode';

    /**
     * @var integer $_state   The current state of this query.
     */
    private $_state = self::STATE_CLEAN;

    /**
     * @var string $_dql Cached DQL query.
     */
    private $_dql = null;

    /**
     * @var Doctrine\ORM\Query\ParserResult  The parser result that holds DQL => SQL information.
     */
    private $_parserResult;

    /**
     * @var integer The first result to return (the "offset").
     */
    private $_firstResult = null;

    /**
     * @var integer The maximum number of results to return (the "limit").
     */
    private $_maxResults = null;

    /**
     * @var CacheDriver The cache driver used for caching queries.
     */
    private $_queryCache;

    /**
     * @var boolean Boolean value that indicates whether or not expire the query cache.
     */
    private $_expireQueryCache = false;

    /**
     * @var int Query Cache lifetime.
     */
    private $_queryCacheTTL;

    /**
     * @var boolean Whether to use a query cache, if available. Defaults to TRUE.
     */
    private $_useQueryCache = true;

    // End of Caching Stuff

    /**
     * Initializes a new Query instance.
     *
     * @param Doctrine\ORM\EntityManager $entityManager
     */
    /*public function __construct(EntityManager $entityManager)
    {
        parent::__construct($entityManager);
    }*/

    /**
     * Gets the SQL query/queries that correspond to this DQL query.
     *
     * @return mixed The built sql query or an array of all sql queries.
     * @override
     */
    public function getSQL()
    {
        return $this->_parse()->getSQLExecutor()->getSQLStatements();
    }

    /**
     * Returns the corresponding AST for this DQL query.
     *
     * @return Doctrine\ORM\Query\AST\SelectStatement |
     *         Doctrine\ORM\Query\AST\UpdateStatement |
     *         Doctrine\ORM\Query\AST\DeleteStatement
     */
    public function getAST()
    {
        $parser = new Parser($this);
        return $parser->getAST();
    }

    /**
     * Parses the DQL query, if necessary, and stores the parser result.
     *
     * Note: Populates $this->_parserResult as a side-effect.
     *
     * @return Doctrine\ORM\Query\ParserResult
     */
    private function _parse()
    {
        if ($this->_state === self::STATE_CLEAN) {
            return $this->_parserResult;
        }

        // Check query cache.
        if ($this->_useQueryCache && ($queryCache = $this->getQueryCacheDriver())) {
            $hash = $this->_getQueryCacheId();
            $cached = $this->_expireQueryCache ? false : $queryCache->fetch($hash);
            if ($cached === false) {
                // Cache miss.
                $parser = new Parser($this);
                $this->_parserResult = $parser->parse();
                $queryCache->save($hash, $this->_parserResult, $this->_queryCacheTTL);
            } else {
                // Cache hit.
                $this->_parserResult = $cached;
            }
        } else {
            $parser = new Parser($this);
            $this->_parserResult = $parser->parse();
        }
        $this->_state = self::STATE_CLEAN;

        return $this->_parserResult;
    }

    /**
     * {@inheritdoc}
     */
    protected function _doExecute()
    {
        $executor = $this->_parse()->getSqlExecutor();

        // Prepare parameters
        $paramMappings = $this->_parserResult->getParameterMappings();

        if (count($paramMappings) != count($this->_params)) {
            throw QueryException::invalidParameterNumber();
        }

        list($sqlParams, $types) = $this->processParameterMappings($paramMappings);

        if ($this->_resultSetMapping === null) {
            $this->_resultSetMapping = $this->_parserResult->getResultSetMapping();
        }

        return $executor->execute($this->_em->getConnection(), $sqlParams, $types);
    }

    /**
     * Processes query parameter mappings
     *
     * @param array $paramMappings
     * @return array
     */
    private function processParameterMappings($paramMappings)
    {
        $sqlParams = $types = array();

        foreach ($this->_params as $key => $value) {
            if ( ! isset($paramMappings[$key])) {
                throw QueryException::unknownParameter($key);
            }

            if (isset($this->_paramTypes[$key])) {
                foreach ($paramMappings[$key] as $position) {
                    $types[$position] = $this->_paramTypes[$key];
                }
            }

            $sqlPositions = $paramMappings[$key];
            $value = array_values($this->processParameterValue($value));
            $countValue = count($value);

            for ($i = 0, $l = count($sqlPositions); $i < $l; $i++) {
                $sqlParams[$sqlPositions[$i]] = $value[($i % $countValue)];
            }
        }

        if ($sqlParams) {
            ksort($sqlParams);
            $sqlParams = array_values($sqlParams);
        }

        return array($sqlParams, $types);
    }

    /**
     * Process an individual parameter value
     *
     * @param mixed $value
     * @return array
     */
    private function processParameterValue($value)
    {
        if (is_array($value)) {
            for ($i = 0, $l = count($value); $i < $l; $i++) {
                $paramValue = $this->processParameterValue($value[$i]);

                // TODO: What about Entities that have composite primary key?
                $value[$i] = is_array($paramValue) ? $paramValue[key($paramValue)] : $paramValue;
            }

            return array($value);
        }

        if ( ! (is_object($value) && $this->_em->getMetadataFactory()->hasMetadataFor(get_class($value)))) {
            return array($value);
        }

        if ($this->_em->getUnitOfWork()->getEntityState($value) === UnitOfWork::STATE_MANAGED) {
            return array_values($this->_em->getUnitOfWork()->getEntityIdentifier($value));
        }

        $class = $this->_em->getClassMetadata(get_class($value));

        return array_values($class->getIdentifierValues($value));
    }

    /**
     * Defines a cache driver to be used for caching queries.
     *
     * @param Doctrine_Cache_Interface|null $driver Cache driver
     * @return Query This query instance.
     */
    public function setQueryCacheDriver($queryCache)
    {
        $this->_queryCache = $queryCache;
        return $this;
    }

    /**
     * Defines whether the query should make use of a query cache, if available.
     *
     * @param boolean $bool
     * @return @return Query This query instance.
     */
    public function useQueryCache($bool)
    {
        $this->_useQueryCache = $bool;
        return $this;
    }

    /**
     * Returns the cache driver used for query caching.
     *
     * @return CacheDriver The cache driver used for query caching or NULL, if this
     * 					   Query does not use query caching.
     */
    public function getQueryCacheDriver()
    {
        if ($this->_queryCache) {
            return $this->_queryCache;
        } else {
            return $this->_em->getConfiguration()->getQueryCacheImpl();
        }
    }

    /**
     * Defines how long the query cache will be active before expire.
     *
     * @param integer $timeToLive How long the cache entry is valid
     * @return Query This query instance.
     */
    public function setQueryCacheLifetime($timeToLive)
    {
        if ($timeToLive !== null) {
            $timeToLive = (int) $timeToLive;
        }
        $this->_queryCacheTTL = $timeToLive;

        return $this;
    }

    /**
     * Retrieves the lifetime of resultset cache.
     *
     * @return int
     */
    public function getQueryCacheLifetime()
    {
        return $this->_queryCacheTTL;
    }

    /**
     * Defines if the query cache is active or not.
     *
     * @param boolean $expire Whether or not to force query cache expiration.
     * @return Query This query instance.
     */
    public function expireQueryCache($expire = true)
    {
        $this->_expireQueryCache = $expire;

        return $this;
    }

    /**
     * Retrieves if the query cache is active or not.
     *
     * @return bool
     */
    public function getExpireQueryCache()
    {
        return $this->_expireQueryCache;
    }

    /**
     * @override
     */
    public function free()
    {
        parent::free();
        $this->_dql = null;
        $this->_state = self::STATE_CLEAN;
    }

    /**
     * Sets a DQL query string.
     *
     * @param string $dqlQuery DQL Query
     * @return Doctrine\ORM\AbstractQuery
     */
    public function setDQL($dqlQuery)
    {
        if ($dqlQuery !== null) {
            $this->_dql = $dqlQuery;
            $this->_state = self::STATE_DIRTY;
        }
        return $this;
    }

    /**
     * Returns the DQL query that is represented by this query object.
     *
     * @return string DQL query
     */
    public function getDQL()
    {
        return $this->_dql;
    }

    /**
     * Returns the state of this query object
     * By default the type is Doctrine_ORM_Query_Abstract::STATE_CLEAN but if it appears any unprocessed DQL
     * part, it is switched to Doctrine_ORM_Query_Abstract::STATE_DIRTY.
     *
     * @see AbstractQuery::STATE_CLEAN
     * @see AbstractQuery::STATE_DIRTY
     *
     * @return integer Return the query state
     */
    public function getState()
    {
        return $this->_state;
    }

    /**
     * Method to check if an arbitrary piece of DQL exists
     *
     * @param string $dql Arbitrary piece of DQL to check for
     * @return boolean
     */
    public function contains($dql)
    {
        return stripos($this->getDQL(), $dql) === false ? false : true;
    }

    /**
     * Sets the position of the first result to retrieve (the "offset").
     *
     * @param integer $firstResult The first result to return.
     * @return Query This query object.
     */
    public function setFirstResult($firstResult)
    {
        $this->_firstResult = $firstResult;
        $this->_state = self::STATE_DIRTY;
        return $this;
    }

    /**
     * Gets the position of the first result the query object was set to retrieve (the "offset").
     * Returns NULL if {@link setFirstResult} was not applied to this query.
     *
     * @return integer The position of the first result.
     */
    public function getFirstResult()
    {
        return $this->_firstResult;
    }

    /**
     * Sets the maximum number of results to retrieve (the "limit").
     *
     * @param integer $maxResults
     * @return Query This query object.
     */
    public function setMaxResults($maxResults)
    {
        $this->_maxResults = $maxResults;
        $this->_state = self::STATE_DIRTY;
        return $this;
    }

    /**
     * Gets the maximum number of results the query object was set to retrieve (the "limit").
     * Returns NULL if {@link setMaxResults} was not applied to this query.
     *
     * @return integer Maximum number of results.
     */
    public function getMaxResults()
    {
        return $this->_maxResults;
    }

    /**
     * Executes the query and returns an IterableResult that can be used to incrementally
     * iterated over the result.
     *
     * @param array $params The query parameters.
     * @param integer $hydrationMode The hydration mode to use.
     * @return IterableResult
     */
    public function iterate(array $params = array(), $hydrationMode = self::HYDRATE_OBJECT)
    {
        $this->setHint(self::HINT_INTERNAL_ITERATION, true);
        return parent::iterate($params, $hydrationMode);
    }

    /**
     * {@inheritdoc}
     */
    public function setHint($name, $value)
    {
        $this->_state = self::STATE_DIRTY;
        return parent::setHint($name, $value);
    }

    /**
     * {@inheritdoc}
     */
    public function setHydrationMode($hydrationMode)
    {
        $this->_state = self::STATE_DIRTY;
        return parent::setHydrationMode($hydrationMode);
    }

    /**
     * Set the lock mode for this Query.
     *
     * @see Doctrine\DBAL\LockMode
     * @param  int $lockMode
     * @return Query
     */
    public function setLockMode($lockMode)
    {
        if ($lockMode == LockMode::PESSIMISTIC_READ || $lockMode == LockMode::PESSIMISTIC_WRITE) {
            if (!$this->_em->getConnection()->isTransactionActive()) {
                throw TransactionRequiredException::transactionRequired();
            }
        }

        $this->setHint(self::HINT_LOCK_MODE, $lockMode);
        return $this;
    }

    /**
     * Get the current lock mode for this query.
     *
     * @return int
     */
    public function getLockMode()
    {
        $lockMode = $this->getHint(self::HINT_LOCK_MODE);
        if (!$lockMode) {
            return LockMode::NONE;
        }
        return $lockMode;
    }

    /**
     * Generate a cache id for the query cache - reusing the Result-Cache-Id generator.
     *
     * The query cache
     *
     * @return string
     */
    protected function _getQueryCacheId()
    {
        ksort($this->_hints);

        return md5(
            $this->getDql() . var_export($this->_hints, true) .
            '&firstResult=' . $this->_firstResult . '&maxResult=' . $this->_maxResults .
            '&hydrationMode='.$this->_hydrationMode.'DOCTRINE_QUERY_CACHE_SALT'
        );
    }

    /**
     * Cleanup Query resource when clone is called.
     *
     * @return void
     */
    public function __clone()
    {
        parent::__clone();
        $this->_state = self::STATE_DIRTY;
    }
}


text:
<?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;

/**
 * Exception thrown when a Proxy fails to retrieve an Entity result.
 *
 * @author robo
 * @since 2.0
 */
class EntityNotFoundException extends ORMException
{
    public function __construct()
    {
        parent::__construct('Entity was not found.');
    }
}

repo_name: michael-romer/zf-boilerplate

repo_language: PHP

mime_type: text/html


text:
<?php
/*
 *  $Id$
 *
 * 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;

/**
 * Container for all ORM events.
 *
 * This class cannot be instantiated.
 *
 * @author Roman Borschel <roman@code-factory.org>
 * @since 2.0
 */
final class Events
{
    private function __construct() {}
    /**
     * The preRemove event occurs for a given entity before the respective
     * EntityManager remove operation for that entity is executed.
     *
     * This is an entity lifecycle event.
     *
     * @var string
     */
    const preRemove = 'preRemove';
    /**
     * The postRemove event occurs for an entity after the entity has
     * been deleted. It will be invoked after the database delete operations.
     *
     * This is an entity lifecycle event.
     *
     * @var string
     */
    const postRemove = 'postRemove';
    /**
     * The prePersist event occurs for a given entity before the respective
     * EntityManager persist operation for that entity is executed.
     *
     * This is an entity lifecycle event.
     *
     * @var string
     */
    const prePersist = 'prePersist';
    /**
     * The postPersist event occurs for an entity after the entity has
     * been made persistent. It will be invoked after the database insert operations.
     * Generated primary key values are available in the postPersist event.
     *
     * This is an entity lifecycle event.
     *
     * @var string
     */
    const postPersist = 'postPersist';
    /**
     * The preUpdate event occurs before the database update operations to
     * entity data.
     *
     * This is an entity lifecycle event.
     *
     * @var string
     */
    const preUpdate = 'preUpdate';
    /**
     * The postUpdate event occurs after the database update operations to
     * entity data.
     *
     * This is an entity lifecycle event.
     *
     * @var string
     */
    const postUpdate = 'postUpdate';
    /**
     * The postLoad event occurs for an entity after the entity has been loaded
     * into the current EntityManager from the database or after the refresh operation
     * has been applied to it.
     *
     * Note that the postLoad event occurs for an entity before any associations have been
     * initialized. Therefore it is not safe to access associations in a postLoad callback
     * or event handler.
     *
     * This is an entity lifecycle event.
     *
     * @var string
     */
    const postLoad = 'postLoad';
    /**
     * The loadClassMetadata event occurs after the mapping metadata for a class
     * has been loaded from a mapping source (annotations/xml/yaml).
     *
     * @var string
     */
    const loadClassMetadata = 'loadClassMetadata';

    /**
     * The onFlush event occurs when the EntityManager#flush() operation is invoked,
     * after any changes to managed entities have been determined but before any
     * actual database operations are executed. The event is only raised if there is
     * actually something to do for the underlying UnitOfWork. If nothing needs to be done,
     * the onFlush event is not raised.
     *
     * @var string
     */
    const onFlush = 'onFlush';

    /**
     * The onClear event occurs when the EntityManager#clear() operation is invoked,
     * after all references to entities have been removed from the unit of work.
     *
     * @var string
     */
    const onClear = 'onClear';
}


text:
<?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;

/**
 * Exception thrown when an ORM query unexpectedly returns more than one result.
 *
 * @author robo
 * @since 2.0
 */
class NonUniqueResultException extends ORMException {}


text:
<?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;

/**
 * Class to store and retrieve the version of Doctrine
 *
 * @license http://www.opensource.org/licenses/lgpl-license.php LGPL
 * @link    www.doctrine-project.org
 * @since   2.0
 * @version $Revision$
 * @author  Benjamin Eberlei <kontakt@beberlei.de>
 * @author  Guilherme Blanco <guilhermeblanco@hotmail.com>
 * @author  Jonathan Wage <jonwage@gmail.com>
 * @author  Roman Borschel <roman@code-factory.org>
 */
class Version
{
    /**
     * Current Doctrine Version
     */
    const VERSION = '2.1.2';

    /**
     * Compares a Doctrine version with the current one.
     *
     * @param string $version Doctrine version to compare.
     * @return int Returns -1 if older, 0 if it is the same, 1 if version
     *             passed as argument is newer.
     */
    public static function compare($version)
    {
        $currentVersion = str_replace(' ', '', strtolower(self::VERSION));
        $version = str_replace(' ', '', $version);

        return version_compare($version, $currentVersion);
    }
}


text:
<?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;

/**
 * Represents a native SQL query.
 *
 * @author Roman Borschel <roman@code-factory.org>
 * @since 2.0
 */
final class NativeQuery extends AbstractQuery
{
    private $_sql;

    /**
     * Sets the SQL of the query.
     *
     * @param string $sql
     * @return NativeQuery This query instance.
     */
    public function setSQL($sql)
    {
        $this->_sql = $sql;
        return $this;
    }

    /**
     * Gets the SQL query.
     *
     * @return mixed The built SQL query or an array of all SQL queries.
     * @override
     */
    public function getSQL()
    {
        return $this->_sql;
    }

    /**
     * {@inheritdoc}
     */
    protected function _doExecute()
    {
        $stmt = $this->_em->getConnection()->prepare($this->_sql);
        $params = $this->_params;
        foreach ($params as $key => $value) {
            if (isset($this->_paramTypes[$key])) {
                $stmt->bindValue($key, $value, $this->_paramTypes[$key]);
            } else {
                $stmt->bindValue($key, $value);
            }
        }
        $stmt->execute();

        return $stmt;
    }
}


text:
<?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;

/**
 * Exception thrown when an ORM query unexpectedly does not return any results.
 *
 * @author robo
 * @since 2.0
 */
class NoResultException extends ORMException
{
    public function __construct()
    {
        parent::__construct('No result was found for query although at least one row was expected.');
    }
}


text:
<?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;

use Doctrine\ORM\Query\Expr;

/**
 * This class is responsible for building DQL query strings via an object oriented
 * PHP interface.
 *
 * @since 2.0
 * @author Guilherme Blanco <guilhermeblanco@hotmail.com>
 * @author Jonathan Wage <jonwage@gmail.com>
 * @author Roman Borschel <roman@code-factory.org>
 */
class QueryBuilder
{
    /* The query types. */
    const SELECT = 0;
    const DELETE = 1;
    const UPDATE = 2;

    /** The builder states. */
    const STATE_DIRTY = 0;
    const STATE_CLEAN = 1;

    /**
     * @var EntityManager The EntityManager used by this QueryBuilder.
     */
    private $_em;

    /**
     * @var array The array of DQL parts collected.
     */
    private $_dqlParts = array(
        'select'  => array(),
        'from'    => array(),
        'join'    => array(),
        'set'     => array(),
        'where'   => null,
        'groupBy' => array(),
        'having'  => null,
        'orderBy' => array()
    );

    /**
     * @var integer The type of query this is. Can be select, update or delete.
     */
    private $_type = self::SELECT;

    /**
     * @var integer The state of the query object. Can be dirty or clean.
     */
    private $_state = self::STATE_CLEAN;

    /**
     * @var string The complete DQL string for this query.
     */
    private $_dql;

    /**
     * @var array The query parameters.
     */
    private $_params = array();

    /**
     * @var array The parameter type map of this query.
     */
    private $_paramTypes = array();

    /**
     * @var integer The index of the first result to retrieve.
     */
    private $_firstResult = null;

    /**
     * @var integer The maximum number of results to retrieve.
     */
    private $_maxResults = null;

    /**
     * Initializes a new <tt>QueryBuilder</tt> that uses the given <tt>EntityManager</tt>.
     *
     * @param EntityManager $em The EntityManager to use.
     */
    public function __construct(EntityManager $em)
    {
        $this->_em = $em;
    }

    /**
     * Gets an ExpressionBuilder used for object-oriented construction of query expressions.
     * This producer method is intended for convenient inline usage. Example:
     *
     *
     *     $qb = $em->createQueryBuilder()
     *         ->select('u')
     *         ->from('User', 'u')
     *         ->where($qb->expr()->eq('u.id', 1));
     *
     *
     * For more complex expression construction, consider storing the expression
     * builder object in a local variable.
     *
     * @return Expr
     */
    public function expr()
    {
        return $this->_em->getExpressionBuilder();
    }

    /**
     * Get the type of the currently built query.
     *
     * @return integer
     */
    public function getType()
    {
        return $this->_type;
    }

    /**
     * Get the associated EntityManager for this query builder.
     *
     * @return EntityManager
     */
    public function getEntityManager()
    {
        return $this->_em;
    }

    /**
     * Get the state of this query builder instance.
     *
     * @return integer Either QueryBuilder::STATE_DIRTY or QueryBuilder::STATE_CLEAN.
     */
    public function getState()
    {
        return $this->_state;
    }

    /**
     * Get the complete DQL string formed by the current specifications of this QueryBuilder.
     *
     *
     *     $qb = $em->createQueryBuilder()
     *         ->select('u')
     *         ->from('User', 'u')
     *     echo $qb->getDql(); // SELECT u FROM User u
     *
     *
     * @return string The DQL query string.
     */
    public function getDQL()
    {
        if ($this->_dql !== null && $this->_state === self::STATE_CLEAN) {
            return $this->_dql;
        }

        $dql = '';

        switch ($this->_type) {
            case self::DELETE:
                $dql = $this->_getDQLForDelete();
                break;

            case self::UPDATE:
                $dql = $this->_getDQLForUpdate();
                break;

            case self::SELECT:
            default:
                $dql = $this->_getDQLForSelect();
                break;
        }

        $this->_state = self::STATE_CLEAN;
        $this->_dql = $dql;

        return $dql;
    }

    /**
     * Constructs a Query instance from the current specifications of the builder.
     *
     *
     *     $qb = $em->createQueryBuilder()
     *         ->select('u')
     *         ->from('User', 'u');
     *     $q = $qb->getQuery();
     *     $results = $q->execute();
     *
     *
     * @return Query
     */
    public function getQuery()
    {
        return $this->_em->createQuery($this->getDQL())
                ->setParameters($this->_params, $this->_paramTypes)
                ->setFirstResult($this->_firstResult)
                ->setMaxResults($this->_maxResults);
    }

    /**
     * Gets the FIRST root alias of the query. This is the first entity alias involved
     * in the construction of the query.
     *
     *
     * $qb = $em->createQueryBuilder()
     * ->select('u')
     * ->from('User', 'u');
     *
     * echo $qb->getRootAlias(); // u
     *
     *
     * @deprecated Please use $qb->getRootAliases() instead.
     * @return string $rootAlias
     */
    public function getRootAlias()
    {
        $aliases = $this->getRootAliases();
        return $aliases[0];
    }

    /**
     * Gets the root aliases of the query. This is the entity aliases involved
     * in the construction of the query.
     *
     *
     *     $qb = $em->createQueryBuilder()
     *         ->select('u')
     *         ->from('User', 'u');
     *
     *     $qb->getRootAliases(); // array('u')
     *
     *
     * @return array $rootAliases
     */
    public function getRootAliases()
    {
        $aliases = array();

        foreach ($this->_dqlParts['from'] as &$fromClause) {
            if (is_string($fromClause)) {
                $spacePos = strrpos($fromClause, ' ');
                $from     = substr($fromClause, 0, $spacePos);
                $alias    = substr($fromClause, $spacePos + 1);

                $fromClause = new Query\Expr\From($from, $alias);
            }

            $aliases[] = $fromClause->getAlias();
        }

        return $aliases;
    }

    /**
     * Gets the root entities of the query. This is the entity aliases involved
     * in the construction of the query.
     *
     *
     *     $qb = $em->createQueryBuilder()
     *         ->select('u')
     *         ->from('User', 'u');
     *
     *     $qb->getRootEntities(); // array('User')
     *
     *
     * @return array $rootEntities
     */
    public function getRootEntities()
    {
        $entities = array();

        foreach ($this->_dqlParts['from'] as &$fromClause) {
            if (is_string($fromClause)) {
                $spacePos = strrpos($fromClause, ' ');
                $from     = substr($fromClause, 0, $spacePos);
                $alias    = substr($fromClause, $spacePos + 1);

                $fromClause = new Query\Expr\From($from, $alias);
            }

            $entities[] = $fromClause->getFrom();
        }

        return $entities;
    }

    /**
     * Sets a query parameter for the query being constructed.
     *
     *
     *     $qb = $em->createQueryBuilder()
     *         ->select('u')
     *         ->from('User', 'u')
     *         ->where('u.id = :user_id')
     *         ->setParameter(':user_id', 1);
     *
     *
     * @param string|integer $key The parameter position or name.
     * @param mixed $value The parameter value.
     * @param string|null $type PDO::PARAM_* or \Doctrine\DBAL\Types\Type::* constant
     * @return QueryBuilder This QueryBuilder instance.
     */
    public function setParameter($key, $value, $type = null)
    {
        if ($type === null) {
            $type = Query\ParameterTypeInferer::inferType($value);
        }

        $this->_paramTypes[$key] = $type;
        $this->_params[$key] = $value;

        return $this;
    }

    /**
     * Sets a collection of query parameters for the query being constructed.
     *
     *
     *     $qb = $em->createQueryBuilder()
     *         ->select('u')
     *         ->from('User', 'u')
     *         ->where('u.id = :user_id1 OR u.id = :user_id2')
     *         ->setParameters(array(
     *             ':user_id1' => 1,
     *             ':user_id2' => 2
     *         ));
     *
     *
     * @param array $params The query parameters to set.
     * @return QueryBuilder This QueryBuilder instance.
     */
    public function setParameters(array $params, array $types = array())
    {
        foreach ($params as $key => $value) {
            if (isset($types[$key])) {
                $this->setParameter($key, $value, $types[$key]);
            } else {
                $this->setParameter($key, $value);
            }
        }
        return $this;
    }

    /**
     * Gets all defined query parameters for the query being constructed.
     *
     * @return array The currently defined query parameters.
     */
    public function getParameters()
    {
        return $this->_params;
    }

    /**
     * Gets a (previously set) query parameter of the query being constructed.
     *
     * @param mixed $key The key (index or name) of the bound parameter.
     * @return mixed The value of the bound parameter.
     */
    public function getParameter($key)
    {
        return isset($this->_params[$key]) ? $this->_params[$key] : null;
    }

    /**
     * Sets the position of the first result to retrieve (the "offset").
     *
     * @param integer $firstResult The first result to return.
     * @return QueryBuilder This QueryBuilder instance.
     */
    public function setFirstResult($firstResult)
    {
        $this->_firstResult = $firstResult;
        return $this;
    }

    /**
     * Gets the position of the first result the query object was set to retrieve (the "offset").
     * Returns NULL if {@link setFirstResult} was not applied to this QueryBuilder.
     *
     * @return integer The position of the first result.
     */
    public function getFirstResult()
    {
        return $this->_firstResult;
    }

    /**
     * Sets the maximum number of results to retrieve (the "limit").
     *
     * @param integer $maxResults The maximum number of results to retrieve.
     * @return QueryBuilder This QueryBuilder instance.
     */
    public function setMaxResults($maxResults)
    {
        $this->_maxResults = $maxResults;
        return $this;
    }

    /**
     * Gets the maximum number of results the query object was set to retrieve (the "limit").
     * Returns NULL if {@link setMaxResults} was not applied to this query builder.
     *
     * @return integer Maximum number of results.
     */
    public function getMaxResults()
    {
        return $this->_maxResults;
    }

    /**
     * Either appends to or replaces a single, generic query part.
     *
     * The available parts are: 'select', 'from', 'join', 'set', 'where',
     * 'groupBy', 'having' and 'orderBy'.
     *
     * @param string $dqlPartName
     * @param string $dqlPart
     * @param string $append
     * @return QueryBuilder This QueryBuilder instance.
     */
    public function add($dqlPartName, $dqlPart, $append = false)
    {
        $isMultiple = is_array($this->_dqlParts[$dqlPartName]);

        // This is introduced for backwards compatibility reasons.
        // TODO: Remove for 3.0
        if ($dqlPartName == 'join') {
            $newDqlPart = array();
            foreach ($dqlPart AS $k => $v) {
                if (is_numeric($k)) {
                    $newDqlPart[$this->getRootAlias()] = $v;
                } else {
                    $newDqlPart[$k] = $v;
                }
            }
            $dqlPart = $newDqlPart;
        }

        if ($append && $isMultiple) {
            if (is_array($dqlPart)) {
                $key = key($dqlPart);

                $this->_dqlParts[$dqlPartName][$key][] = $dqlPart[$key];
            } else {
                $this->_dqlParts[$dqlPartName][] = $dqlPart;
            }
        } else {
            $this->_dqlParts[$dqlPartName] = ($isMultiple) ? array($dqlPart) : $dqlPart;
        }

        $this->_state = self::STATE_DIRTY;

        return $this;
    }

    /**
     * Specifies an item that is to be returned in the query result.
     * Replaces any previously specified selections, if any.
     *
     *
     *     $qb = $em->createQueryBuilder()
     *         ->select('u', 'p')
     *         ->from('User', 'u')
     *         ->leftJoin('u.Phonenumbers', 'p');
     *
     *
     * @param mixed $select The selection expressions.
     * @return QueryBuilder This QueryBuilder instance.
     */
    public function select($select = null)
    {
        $this->_type = self::SELECT;

        if (empty($select)) {
            return $this;
        }

        $selects = is_array($select) ? $select : func_get_args();

        return $this->add('select', new Expr\Select($selects), false);
    }

    /**
     * Adds an item that is to be returned in the query result.
     *
     *
     *     $qb = $em->createQueryBuilder()
     *         ->select('u')
     *         ->addSelect('p')
     *         ->from('User', 'u')
     *         ->leftJoin('u.Phonenumbers', 'p');
     *
     *
     * @param mixed $select The selection expression.
     * @return QueryBuilder This QueryBuilder instance.
     */
    public function addSelect($select = null)
    {
        $this->_type = self::SELECT;

        if (empty($select)) {
            return $this;
        }

        $selects = is_array($select) ? $select : func_get_args();

        return $this->add('select', new Expr\Select($selects), true);
    }

    /**
     * Turns the query being built into a bulk delete query that ranges over
     * a certain entity type.
     *
     *
     *     $qb = $em->createQueryBuilder()
     *         ->delete('User', 'u')
     *         ->where('u.id = :user_id');
     *         ->setParameter(':user_id', 1);
     *
     *
     * @param string $delete The class/type whose instances are subject to the deletion.
     * @param string $alias The class/type alias used in the constructed query.
     * @return QueryBuilder This QueryBuilder instance.
     */
    public function delete($delete = null, $alias = null)
    {
        $this->_type = self::DELETE;

        if ( ! $delete) {
            return $this;
        }

        return $this->add('from', new Expr\From($delete, $alias));
    }

    /**
     * Turns the query being built into a bulk update query that ranges over
     * a certain entity type.
     *
     *
     *     $qb = $em->createQueryBuilder()
     *         ->update('User', 'u')
     *         ->set('u.password', md5('password'))
     *         ->where('u.id = ?');
     *
     *
     * @param string $update The class/type whose instances are subject to the update.
     * @param string $alias The class/type alias used in the constructed query.
     * @return QueryBuilder This QueryBuilder instance.
     */
    public function update($update = null, $alias = null)
    {
        $this->_type = self::UPDATE;

        if ( ! $update) {
            return $this;
        }

        return $this->add('from', new Expr\From($update, $alias));
    }

    /**
     * Create and add a query root corresponding to the entity identified by the given alias,
     * forming a cartesian product with any existing query roots.
     *
     *
     *     $qb = $em->createQueryBuilder()
     *         ->select('u')
     *         ->from('User', 'u')
     *
     *
     * @param string $from   The class name.
     * @param string $alias  The alias of the class.
     * @return QueryBuilder This QueryBuilder instance.
     */
    public function from($from, $alias)
    {
        return $this->add('from', new Expr\From($from, $alias), true);
    }

    /**
     * Creates and adds a join over an entity association to the query.
     *
     * The entities in the joined association will be fetched as part of the query
     * result if the alias used for the joined association is placed in the select
     * expressions.
     *
     *
     *     $qb = $em->createQueryBuilder()
     *         ->select('u')
     *         ->from('User', 'u')
     *         ->join('u.Phonenumbers', 'p', Expr\Join::WITH, 'p.is_primary = 1');
     *
     *
     * @param string $join The relationship to join
     * @param string $alias The alias of the join
     * @param string $conditionType The condition type constant. Either ON or WITH.
     * @param string $condition The condition for the join
     * @param string $indexBy The index for the join
     * @return QueryBuilder This QueryBuilder instance.
     */
    public function join($join, $alias, $conditionType = null, $condition = null, $indexBy = null)
    {
        return $this->innerJoin($join, $alias, $conditionType, $condition, $indexBy);
    }

    /**
     * Creates and adds a join over an entity association to the query.
     *
     * The entities in the joined association will be fetched as part of the query
     * result if the alias used for the joined association is placed in the select
     * expressions.
     *
     *     [php]
     *     $qb = $em->createQueryBuilder()
     *         ->select('u')
     *         ->from('User', 'u')
     *         ->innerJoin('u.Phonenumbers', 'p', Expr\Join::WITH, 'p.is_primary = 1');
     *
     * @param string $join The relationship to join
     * @param string $alias The alias of the join
     * @param string $conditionType The condition type constant. Either ON or WITH.
     * @param string $condition The condition for the join
     * @param string $indexBy The index for the join
     * @return QueryBuilder This QueryBuilder instance.
     */
    public function innerJoin($join, $alias, $conditionType = null, $condition = null, $indexBy = null)
    {
        $rootAlias = substr($join, 0, strpos($join, '.'));
        if (!in_array($rootAlias, $this->getRootAliases())) {
            $rootAlias = $this->getRootAlias();
        }

        return $this->add('join', array(
            $rootAlias => new Expr\Join(Expr\Join::INNER_JOIN, $join, $alias, $conditionType, $condition, $indexBy)
        ), true);
    }

    /**
     * Creates and adds a left join over an entity association to the query.
     *
     * The entities in the joined association will be fetched as part of the query
     * result if the alias used for the joined association is placed in the select
     * expressions.
     *
     *
     *     $qb = $em->createQueryBuilder()
     *         ->select('u')
     *         ->from('User', 'u')
     *         ->leftJoin('u.Phonenumbers', 'p', Expr\Join::WITH, 'p.is_primary = 1');
     *
     *
     * @param string $join The relationship to join
     * @param string $alias The alias of the join
     * @param string $conditionType The condition type constant. Either ON or WITH.
     * @param string $condition The condition for the join
     * @param string $indexBy The index for the join
     * @return QueryBuilder This QueryBuilder instance.
     */
    public function leftJoin($join, $alias, $conditionType = null, $condition = null, $indexBy = null)
    {
        $rootAlias = substr($join, 0, strpos($join, '.'));
        if (!in_array($rootAlias, $this->getRootAliases())) {
            $rootAlias = $this->getRootAlias();
        }

        return $this->add('join', array(
            $rootAlias => new Expr\Join(Expr\Join::LEFT_JOIN, $join, $alias, $conditionType, $condition, $indexBy)
        ), true);
    }

    /**
     * Sets a new value for a field in a bulk update query.
     *
     *
     *     $qb = $em->createQueryBuilder()
     *         ->update('User', 'u')
     *         ->set('u.password', md5('password'))
     *         ->where('u.id = ?');
     *
     *
     * @param string $key The key/field to set.
     * @param string $value The value, expression, placeholder, etc.
     * @return QueryBuilder This QueryBuilder instance.
     */
    public function set($key, $value)
    {
        return $this->add('set', new Expr\Comparison($key, Expr\Comparison::EQ, $value), true);
    }

    /**
     * Specifies one or more restrictions to the query result.
     * Replaces any previously specified restrictions, if any.
     *
     *
     *     $qb = $em->createQueryBuilder()
     *         ->select('u')
     *         ->from('User', 'u')
     *         ->where('u.id = ?');
     *
     *     // You can optionally programatically build and/or expressions
     *     $qb = $em->createQueryBuilder();
     *
     *     $or = $qb->expr()->orx();
     *     $or->add($qb->expr()->eq('u.id', 1));
     *     $or->add($qb->expr()->eq('u.id', 2));
     *
     *     $qb->update('User', 'u')
     *         ->set('u.password', md5('password'))
     *         ->where($or);
     *
     *
     * @param mixed $predicates The restriction predicates.
     * @return QueryBuilder This QueryBuilder instance.
     */
    public function where($predicates)
    {
        if ( ! (func_num_args() == 1 && $predicates instanceof Expr\Composite)) {
            $predicates = new Expr\Andx(func_get_args());
        }

        return $this->add('where', $predicates);
    }

    /**
     * Adds one or more restrictions to the query results, forming a logical
     * conjunction with any previously specified restrictions.
     *
     *
     *     $qb = $em->createQueryBuilder()
     *         ->select('u')
     *         ->from('User', 'u')
     *         ->where('u.username LIKE ?')
     *         ->andWhere('u.is_active = 1');
     *
     *
     * @param mixed $where The query restrictions.
     * @return QueryBuilder This QueryBuilder instance.
     * @see where()
     */
    public function andWhere($where)
    {
        $where = $this->getDQLPart('where');
        $args = func_get_args();

        if ($where instanceof Expr\Andx) {
            $where->addMultiple($args);
        } else {
            array_unshift($args, $where);
            $where = new Expr\Andx($args);
        }

        return $this->add('where', $where, true);
    }

    /**
     * Adds one or more restrictions to the query results, forming a logical
     * disjunction with any previously specified restrictions.
     *
     *
     *     $qb = $em->createQueryBuilder()
     *         ->select('u')
     *         ->from('User', 'u')
     *         ->where('u.id = 1')
     *         ->orWhere('u.id = 2');
     *
     *
     * @param mixed $where The WHERE statement
     * @return QueryBuilder $qb
     * @see where()
     */
    public function orWhere($where)
    {
        $where = $this->getDqlPart('where');
        $args = func_get_args();

        if ($where instanceof Expr\Orx) {
            $where->addMultiple($args);
        } else {
            array_unshift($args, $where);
            $where = new Expr\Orx($args);
        }

        return $this->add('where', $where, true);
    }

    /**
     * Specifies a grouping over the results of the query.
     * Replaces any previously specified groupings, if any.
     *
     *
     *     $qb = $em->createQueryBuilder()
     *         ->select('u')
     *         ->from('User', 'u')
     *         ->groupBy('u.id');
     *
     *
     * @param string $groupBy The grouping expression.
     * @return QueryBuilder This QueryBuilder instance.
     */
    public function groupBy($groupBy)
    {
        return $this->add('groupBy', new Expr\GroupBy(func_get_args()));
    }

    /**
     * Adds a grouping expression to the query.
     *
     *
     *     $qb = $em->createQueryBuilder()
     *         ->select('u')
     *         ->from('User', 'u')
     *         ->groupBy('u.lastLogin');
     *         ->addGroupBy('u.createdAt')
     *
     *
     * @param string $groupBy The grouping expression.
     * @return QueryBuilder This QueryBuilder instance.
     */
    public function addGroupBy($groupBy)
    {
        return $this->add('groupBy', new Expr\GroupBy(func_get_args()), true);
    }

    /**
     * Specifies a restriction over the groups of the query.
     * Replaces any previous having restrictions, if any.
     *
     * @param mixed $having The restriction over the groups.
     * @return QueryBuilder This QueryBuilder instance.
     */
    public function having($having)
    {
        if ( ! (func_num_args() == 1 && ($having instanceof Expr\Andx || $having instanceof Expr\Orx))) {
            $having = new Expr\Andx(func_get_args());
        }

        return $this->add('having', $having);
    }

    /**
     * Adds a restriction over the groups of the query, forming a logical
     * conjunction with any existing having restrictions.
     *
     * @param mixed $having The restriction to append.
     * @return QueryBuilder This QueryBuilder instance.
     */
    public function andHaving($having)
    {
        $having = $this->getDqlPart('having');
        $args = func_get_args();

        if ($having instanceof Expr\Andx) {
            $having->addMultiple($args);
        } else {
            array_unshift($args, $having);
            $having = new Expr\Andx($args);
        }

        return $this->add('having', $having);
    }

    /**
     * Adds a restriction over the groups of the query, forming a logical
     * disjunction with any existing having restrictions.
     *
     * @param mixed $having The restriction to add.
     * @return QueryBuilder This QueryBuilder instance.
     */
    public function orHaving($having)
    {
        $having = $this->getDqlPart('having');
        $args = func_get_args();

        if ($having instanceof Expr\Orx) {
            $having->addMultiple($args);
        } else {
            array_unshift($args, $having);
            $having = new Expr\Orx($args);
        }

        return $this->add('having', $having);
    }

    /**
     * Specifies an ordering for the query results.
     * Replaces any previously specified orderings, if any.
     *
     * @param string $sort The ordering expression.
     * @param string $order The ordering direction.
     * @return QueryBuilder This QueryBuilder instance.
     */
    public function orderBy($sort, $order = null)
    {
        return $this->add('orderBy',  $sort instanceof Expr\OrderBy ? $sort
                : new Expr\OrderBy($sort, $order));
    }

    /**
     * Adds an ordering to the query results.
     *
     * @param string $sort The ordering expression.
     * @param string $order The ordering direction.
     * @return QueryBuilder This QueryBuilder instance.
     */
    public function addOrderBy($sort, $order = null)
    {
        return $this->add('orderBy', new Expr\OrderBy($sort, $order), true);
    }

    /**
     * Get a query part by its name.
     *
     * @param string $queryPartName
     * @return mixed $queryPart
     * @todo Rename: getQueryPart (or remove?)
     */
    public function getDQLPart($queryPartName)
    {
        return $this->_dqlParts[$queryPartName];
    }

    /**
     * Get all query parts.
     *
     * @return array $dqlParts
     * @todo Rename: getQueryParts (or remove?)
     */
    public function getDQLParts()
    {
        return $this->_dqlParts;
    }

    private function _getDQLForDelete()
    {
         return 'DELETE'
              . $this->_getReducedDQLQueryPart('from', array('pre' => ' ', 'separator' => ', '))
              . $this->_getReducedDQLQueryPart('where', array('pre' => ' WHERE '))
              . $this->_getReducedDQLQueryPart('orderBy', array('pre' => ' ORDER BY ', 'separator' => ', '));
    }

    private function _getDQLForUpdate()
    {
         return 'UPDATE'
              . $this->_getReducedDQLQueryPart('from', array('pre' => ' ', 'separator' => ', '))
              . $this->_getReducedDQLQueryPart('set', array('pre' => ' SET ', 'separator' => ', '))
              . $this->_getReducedDQLQueryPart('where', array('pre' => ' WHERE '))
              . $this->_getReducedDQLQueryPart('orderBy', array('pre' => ' ORDER BY ', 'separator' => ', '));
    }

    private function _getDQLForSelect()
    {
        $dql = 'SELECT' . $this->_getReducedDQLQueryPart('select', array('pre' => ' ', 'separator' => ', '));

        $fromParts   = $this->getDQLPart('from');
        $joinParts   = $this->getDQLPart('join');
        $fromClauses = array();

        // Loop through all FROM clauses
        if ( ! empty($fromParts)) {
            $dql .= ' FROM ';

            foreach ($fromParts as $from) {
                $fromClause = (string) $from;

                if ($from instanceof Expr\From && isset($joinParts[$from->getAlias()])) {
                    foreach ($joinParts[$from->getAlias()] as $join) {
                        $fromClause .= ' ' . ((string) $join);
                    }
                }

                $fromClauses[] = $fromClause;
            }
        }

        $dql .= implode(', ', $fromClauses)
              . $this->_getReducedDQLQueryPart('where', array('pre' => ' WHERE '))
              . $this->_getReducedDQLQueryPart('groupBy', array('pre' => ' GROUP BY ', 'separator' => ', '))
              . $this->_getReducedDQLQueryPart('having', array('pre' => ' HAVING '))
              . $this->_getReducedDQLQueryPart('orderBy', array('pre' => ' ORDER BY ', 'separator' => ', '));

        return $dql;
    }

    private function _getReducedDQLQueryPart($queryPartName, $options = array())
    {
        $queryPart = $this->getDQLPart($queryPartName);

        if (empty($queryPart)) {
            return (isset($options['empty']) ? $options['empty'] : '');
        }

        return (isset($options['pre']) ? $options['pre'] : '')
             . (is_array($queryPart) ? implode($options['separator'], $queryPart) : $queryPart)
             . (isset($options['post']) ? $options['post'] : '');
    }

    /**
     * Reset DQL parts
     *
     * @param array $parts
     * @return QueryBuilder
     */
    public function resetDQLParts($parts = null)
    {
        if (is_null($parts)) {
            $parts = array_keys($this->_dqlParts);
        }
        foreach ($parts as $part) {
            $this->resetDQLPart($part);
        }
        return $this;
    }

    /**
     * Reset single DQL part
     *
     * @param string $part
     * @return QueryBuilder;
     */
    public function resetDQLPart($part)
    {
        if (is_array($this->_dqlParts[$part])) {
            $this->_dqlParts[$part] = array();
        } else {
            $this->_dqlParts[$part] = null;
        }
        $this->_state = self::STATE_DIRTY;
        return $this;
    }

    /**
     * Gets a string representation of this QueryBuilder which corresponds to
     * the final DQL query being constructed.
     *
     * @return string The string representation of this QueryBuilder.
     */
    public function __toString()
    {
        return $this->getDQL();
    }

    /**
     * Deep clone of all expression objects in the DQL parts.
     *
     * @return void
     */
    public function __clone()
    {
        foreach ($this->_dqlParts AS $part => $elements) {
            if (is_array($this->_dqlParts[$part])) {
                foreach ($this->_dqlParts[$part] AS $idx => $element) {
                    if (is_object($element)) {
                        $this->_dqlParts[$part][$idx] = clone $element;
                    }
                }
            } else if (\is_object($elements)) {
                $this->_dqlParts[$part] = clone $elements;
            }
        }
    }
}


text:
<?php
/*
 *  $Id$
 *
 * 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;

/**
 * Pessimistic Lock Exception
 *
 * @license     http://www.opensource.org/licenses/lgpl-license.php LGPL
 * @link        www.doctrine-project.com
 * @since       1.0
 * @version     $Revision$
 * @author      Benjamin Eberlei <kontakt@beberlei.de>
 * @author      Roman Borschel <roman@code-factory.org>
 */
class PessimisticLockException extends ORMException
{
    public static function lockFailed()
    {
        return new self("The pessimistic lock failed.");
    }
}


text:
<?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;

use Doctrine\Common\Cache\Cache,
    Doctrine\Common\Cache\ArrayCache,
    Doctrine\Common\Annotations\AnnotationRegistry,
    Doctrine\Common\Annotations\AnnotationReader,
    Doctrine\ORM\Mapping\Driver\Driver,
    Doctrine\ORM\Mapping\Driver\AnnotationDriver;

/**
 * Configuration container for all configuration options of Doctrine.
 * It combines all configuration options from DBAL & ORM.
 *
 * @since 2.0
 * @internal When adding a new configuration option just write a getter/setter pair.
 * @author  Benjamin Eberlei <kontakt@beberlei.de>
 * @author  Guilherme Blanco <guilhermeblanco@hotmail.com>
 * @author  Jonathan Wage <jonwage@gmail.com>
 * @author  Roman Borschel <roman@code-factory.org>
 */
class Configuration extends \Doctrine\DBAL\Configuration
{
    /**
     * Sets the directory where Doctrine generates any necessary proxy class files.
     *
     * @param string $dir
     */
    public function setProxyDir($dir)
    {
        $this->_attributes['proxyDir'] = $dir;
    }

    /**
     * Gets the directory where Doctrine generates any necessary proxy class files.
     *
     * @return string
     */
    public function getProxyDir()
    {
        return isset($this->_attributes['proxyDir']) ?
                $this->_attributes['proxyDir'] : null;
    }

    /**
     * Gets a boolean flag that indicates whether proxy classes should always be regenerated
     * during each script execution.
     *
     * @return boolean
     */
    public function getAutoGenerateProxyClasses()
    {
        return isset($this->_attributes['autoGenerateProxyClasses']) ?
                $this->_attributes['autoGenerateProxyClasses'] : true;
    }

    /**
     * Sets a boolean flag that indicates whether proxy classes should always be regenerated
     * during each script execution.
     *
     * @param boolean $bool
     */
    public function setAutoGenerateProxyClasses($bool)
    {
        $this->_attributes['autoGenerateProxyClasses'] = $bool;
    }

    /**
     * Gets the namespace where proxy classes reside.
     *
     * @return string
     */
    public function getProxyNamespace()
    {
        return isset($this->_attributes['proxyNamespace']) ?
                $this->_attributes['proxyNamespace'] : null;
    }

    /**
     * Sets the namespace where proxy classes reside.
     *
     * @param string $ns
     */
    public function setProxyNamespace($ns)
    {
        $this->_attributes['proxyNamespace'] = $ns;
    }

    /**
     * Sets the cache driver implementation that is used for metadata caching.
     *
     * @param Driver $driverImpl
     * @todo Force parameter to be a Closure to ensure lazy evaluation
     *       (as soon as a metadata cache is in effect, the driver never needs to initialize).
     */
    public function setMetadataDriverImpl(Driver $driverImpl)
    {
        $this->_attributes['metadataDriverImpl'] = $driverImpl;
    }

    /**
     * Add a new default annotation driver with a correctly configured annotation reader.
     *
     * @param array $paths
     * @return Mapping\Driver\AnnotationDriver
     */
    public function newDefaultAnnotationDriver($paths = array())
    {
        if (version_compare(\Doctrine\Common\Version::VERSION, '3.0.0-DEV', '>=')) {
            // Register the ORM Annotations in the AnnotationRegistry
            AnnotationRegistry::registerFile(__DIR__ . '/Mapping/Driver/DoctrineAnnotations.php');

            $reader = new AnnotationReader();
            $reader = new \Doctrine\Common\Annotations\CachedReader($reader, new ArrayCache());
        } else if (version_compare(\Doctrine\Common\Version::VERSION, '2.1.0-DEV', '>=')) {
            // Register the ORM Annotations in the AnnotationRegistry
            AnnotationRegistry::registerFile(__DIR__ . '/Mapping/Driver/DoctrineAnnotations.php');

            $reader = new AnnotationReader();
            $reader->setDefaultAnnotationNamespace('Doctrine\ORM\Mapping\\');
            $reader->setIgnoreNotImportedAnnotations(true);
            $reader->setEnableParsePhpImports(false);
            $reader = new \Doctrine\Common\Annotations\CachedReader(
                new \Doctrine\Common\Annotations\IndexedReader($reader), new ArrayCache()
            );
        } else {
            $reader = new AnnotationReader();
            $reader->setDefaultAnnotationNamespace('Doctrine\ORM\Mapping\\');
        }
        return new AnnotationDriver($reader, (array)$paths);
    }

    /**
     * Adds a namespace under a certain alias.
     *
     * @param string $alias
     * @param string $namespace
     */
    public function addEntityNamespace($alias, $namespace)
    {
        $this->_attributes['entityNamespaces'][$alias] = $namespace;
    }

    /**
     * Resolves a registered namespace alias to the full namespace.
     *
     * @param string $entityNamespaceAlias
     * @return string
     * @throws MappingException
     */
    public function getEntityNamespace($entityNamespaceAlias)
    {
        if ( ! isset($this->_attributes['entityNamespaces'][$entityNamespaceAlias])) {
            throw ORMException::unknownEntityNamespace($entityNamespaceAlias);
        }

        return trim($this->_attributes['entityNamespaces'][$entityNamespaceAlias], '\\');
    }

    /**
     * Set the entity alias map
     *
     * @param array $entityAliasMap
     * @return void
     */
    public function setEntityNamespaces(array $entityNamespaces)
    {
        $this->_attributes['entityNamespaces'] = $entityNamespaces;
    }

    /**
     * Retrieves the list of registered entity namespace aliases.
     *
     * @return array
     */
    public function getEntityNamespaces()
    {
        return $this->_attributes['entityNamespaces'];
    }

    /**
     * Gets the cache driver implementation that is used for the mapping metadata.
     *
     * @throws ORMException
     * @return Mapping\Driver\Driver
     */
    public function getMetadataDriverImpl()
    {
        return isset($this->_attributes['metadataDriverImpl']) ?
                $this->_attributes['metadataDriverImpl'] : null;
    }

    /**
     * Gets the cache driver implementation that is used for query result caching.
     *
     * @return \Doctrine\Common\Cache\Cache
     */
    public function getResultCacheImpl()
    {
        return isset($this->_attributes['resultCacheImpl']) ?
                $this->_attributes['resultCacheImpl'] : null;
    }

    /**
     * Sets the cache driver implementation that is used for query result caching.
     *
     * @param \Doctrine\Common\Cache\Cache $cacheImpl
     */
    public function setResultCacheImpl(Cache $cacheImpl)
    {
        $this->_attributes['resultCacheImpl'] = $cacheImpl;
    }

    /**
     * Gets the cache driver implementation that is used for the query cache (SQL cache).
     *
     * @return \Doctrine\Common\Cache\Cache
     */
    public function getQueryCacheImpl()
    {
        return isset($this->_attributes['queryCacheImpl']) ?
                $this->_attributes['queryCacheImpl'] : null;
    }

    /**
     * Sets the cache driver implementation that is used for the query cache (SQL cache).
     *
     * @param \Doctrine\Common\Cache\Cache $cacheImpl
     */
    public function setQueryCacheImpl(Cache $cacheImpl)
    {
        $this->_attributes['queryCacheImpl'] = $cacheImpl;
    }

    /**
     * Gets the cache driver implementation that is used for metadata caching.
     *
     * @return \Doctrine\Common\Cache\Cache
     */
    public function getMetadataCacheImpl()
    {
        return isset($this->_attributes['metadataCacheImpl']) ?
                $this->_attributes['metadataCacheImpl'] : null;
    }

    /**
     * Sets the cache driver implementation that is used for metadata caching.
     *
     * @param \Doctrine\Common\Cache\Cache $cacheImpl
     */
    public function setMetadataCacheImpl(Cache $cacheImpl)
    {
        $this->_attributes['metadataCacheImpl'] = $cacheImpl;
    }

    /**
     * Adds a named DQL query to the configuration.
     *
     * @param string $name The name of the query.
     * @param string $dql The DQL query string.
     */
    public function addNamedQuery($name, $dql)
    {
        $this->_attributes['namedQueries'][$name] = $dql;
    }

    /**
     * Gets a previously registered named DQL query.
     *
     * @param string $name The name of the query.
     * @return string The DQL query.
     */
    public function getNamedQuery($name)
    {
        if ( ! isset($this->_attributes['namedQueries'][$name])) {
            throw ORMException::namedQueryNotFound($name);
        }
        return $this->_attributes['namedQueries'][$name];
    }

    /**
     * Adds a named native query to the configuration.
     *
     * @param string $name The name of the query.
     * @param string $sql The native SQL query string.
     * @param ResultSetMapping $rsm The ResultSetMapping used for the results of the SQL query.
     */
    public function addNamedNativeQuery($name, $sql, Query\ResultSetMapping $rsm)
    {
        $this->_attributes['namedNativeQueries'][$name] = array($sql, $rsm);
    }

    /**
     * Gets the components of a previously registered named native query.
     *
     * @param string $name The name of the query.
     * @return array A tuple with the first element being the SQL string and the second
     *          element being the ResultSetMapping.
     */
    public function getNamedNativeQuery($name)
    {
        if ( ! isset($this->_attributes['namedNativeQueries'][$name])) {
            throw ORMException::namedNativeQueryNotFound($name);
        }
        return $this->_attributes['namedNativeQueries'][$name];
    }

    /**
     * Ensures that this Configuration instance contains settings that are
     * suitable for a production environment.
     *
     * @throws ORMException If a configuration setting has a value that is not
     *                      suitable for a production environment.
     */
    public function ensureProductionSettings()
    {
        if ( !$this->getQueryCacheImpl()) {
            throw ORMException::queryCacheNotConfigured();
        }
        if ( !$this->getMetadataCacheImpl()) {
            throw ORMException::metadataCacheNotConfigured();
        }
        if ($this->getAutoGenerateProxyClasses()) {
            throw ORMException::proxyClassesAlwaysRegenerating();
        }
    }

    /**
     * Registers a custom DQL function that produces a string value.
     * Such a function can then be used in any DQL statement in any place where string
     * functions are allowed.
     *
     * DQL function names are case-insensitive.
     *
     * @param string $name
     * @param string $className
     */
    public function addCustomStringFunction($name, $className)
    {
        $this->_attributes['customStringFunctions'][strtolower($name)] = $className;
    }

    /**
     * Gets the implementation class name of a registered custom string DQL function.
     *
     * @param string $name
     * @return string
     */
    public function getCustomStringFunction($name)
    {
        $name = strtolower($name);
        return isset($this->_attributes['customStringFunctions'][$name]) ?
                $this->_attributes['customStringFunctions'][$name] : null;
    }

    /**
     * Sets a map of custom DQL string functions.
     *
     * Keys must be function names and values the FQCN of the implementing class.
     * The function names will be case-insensitive in DQL.
     *
     * Any previously added string functions are discarded.
     *
     * @param array $functions The map of custom DQL string functions.
     */
    public function setCustomStringFunctions(array $functions)
    {
        $this->_attributes['customStringFunctions'] = array_change_key_case($functions);
    }

    /**
     * Registers a custom DQL function that produces a numeric value.
     * Such a function can then be used in any DQL statement in any place where numeric
     * functions are allowed.
     *
     * DQL function names are case-insensitive.
     *
     * @param string $name
     * @param string $className
     */
    public function addCustomNumericFunction($name, $className)
    {
        $this->_attributes['customNumericFunctions'][strtolower($name)] = $className;
    }

    /**
     * Gets the implementation class name of a registered custom numeric DQL function.
     *
     * @param string $name
     * @return string
     */
    public function getCustomNumericFunction($name)
    {
        $name = strtolower($name);
        return isset($this->_attributes['customNumericFunctions'][$name]) ?
                $this->_attributes['customNumericFunctions'][$name] : null;
    }

    /**
     * Sets a map of custom DQL numeric functions.
     *
     * Keys must be function names and values the FQCN of the implementing class.
     * The function names will be case-insensitive in DQL.
     *
     * Any previously added numeric functions are discarded.
     *
     * @param array $functions The map of custom DQL numeric functions.
     */
    public function setCustomNumericFunctions(array $functions)
    {
        $this->_attributes['customNumericFunctions'] = array_change_key_case($functions);
    }

    /**
     * Registers a custom DQL function that produces a date/time value.
     * Such a function can then be used in any DQL statement in any place where date/time
     * functions are allowed.
     *
     * DQL function names are case-insensitive.
     *
     * @param string $name
     * @param string $className
     */
    public function addCustomDatetimeFunction($name, $className)
    {
        $this->_attributes['customDatetimeFunctions'][strtolower($name)] = $className;
    }

    /**
     * Gets the implementation class name of a registered custom date/time DQL function.
     *
     * @param string $name
     * @return string
     */
    public function getCustomDatetimeFunction($name)
    {
        $name = strtolower($name);
        return isset($this->_attributes['customDatetimeFunctions'][$name]) ?
                $this->_attributes['customDatetimeFunctions'][$name] : null;
    }

    /**
     * Sets a map of custom DQL date/time functions.
     *
     * Keys must be function names and values the FQCN of the implementing class.
     * The function names will be case-insensitive in DQL.
     *
     * Any previously added date/time functions are discarded.
     *
     * @param array $functions The map of custom DQL date/time functions.
     */
    public function setCustomDatetimeFunctions(array $functions)
    {
        $this->_attributes['customDatetimeFunctions'] = array_change_key_case($functions);
    }

    /**
     * Get the hydrator class for the given hydration mode name.
     *
     * @param string $modeName The hydration mode name.
     * @return string $hydrator The hydrator class name.
     */
    public function getCustomHydrationMode($modeName)
    {
        return isset($this->_attributes['customHydrationModes'][$modeName]) ?
            $this->_attributes['customHydrationModes'][$modeName] : null;
    }

    /**
     * Add a custom hydration mode.
     *
     * @param string $modeName The hydration mode name.
     * @param string $hydrator The hydrator class name.
     */
    public function addCustomHydrationMode($modeName, $hydrator)
    {
        $this->_attributes['customHydrationModes'][$modeName] = $hydrator;
    }

    /**
     * Set a class metadata factory.
     *
     * @param string $cmf
     */
    public function setClassMetadataFactoryName($cmfName)
    {
        $this->_attributes['classMetadataFactoryName'] = $cmfName;
    }

    /**
     * @return string
     */
    public function getClassMetadataFactoryName()
    {
        if (!isset($this->_attributes['classMetadataFactoryName'])) {
            $this->_attributes['classMetadataFactoryName'] = 'Doctrine\ORM\Mapping\ClassMetadataFactory';
        }
        return $this->_attributes['classMetadataFactoryName'];
    }
}