Doctrine\OXM\Mapping\Driver\AnnotationDriver::getAllClassNames PHP Method

    public function getAllClassNames()
    {
        if ($this->classNames !== null) {
            return $this->classNames;
        }
        if (!$this->paths) {
            throw MappingException::pathRequired();
        }
        $classes = array();
        $includedFiles = array();
        foreach ($this->paths as $path) {
            if (!is_dir($path)) {
                throw MappingException::fileMappingDriversRequiresConfiguredDirectoryPath($path);
            }
            $iterator = new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($path), \RecursiveIteratorIterator::LEAVES_ONLY);
            foreach ($iterator as $file) {
                if (($fileName = $file->getBasename($this->fileExtension)) == $file->getBasename()) {
                    continue;
                }
                $sourceFile = realpath($file->getPathName());
                require_once $sourceFile;
                $includedFiles[] = $sourceFile;
            }
        }
        $declared = get_declared_classes();
        foreach ($declared as $className) {
            $rc = new \ReflectionClass($className);
            $sourceFile = $rc->getFileName();
            if (in_array($sourceFile, $includedFiles) && !$this->isTransient($className)) {
                $classes[] = $className;
            }
        }
        $this->classNames = $classes;
        return $classes;
    }