Algo-Web / POData

        $descriptor = new SegmentDescriptor();

        $descriptor->setIdentifier($segmentIdentifier);

        if ($segmentIdentifier === ODataConstants::URI_METADATA_SEGMENT) {

            $this->assertion(null === $keyPredicate);

            $descriptor->setTargetKind(TargetKind::METADATA());

            return $descriptor;

        }

        if ($segmentIdentifier === ODataConstants::URI_BATCH_SEGMENT) {

            $this->assertion(null === $keyPredicate);

            return $descriptor;

        }

        if ($segmentIdentifier === ODataConstants::URI_BATCH_SEGMENT) {

            $this->assertion(null === $keyPredicate);

            $descriptor->setTargetKind(TargetKind::BATCH());

            return $descriptor;

        }

        if ($segmentIdentifier === ODataConstants::URI_COUNT_SEGMENT) {

            throw ODataException::createBadRequestError(