public static function generateSubmetaFieldName( $baseName, eZContentClassAttribute $classAttribute )
    {
        $documentFieldName = self::getDocumentFieldName();

        return $documentFieldName->lookupSchemaName( self::SUBMETA_FIELD_PREFIX . $classAttribute->attribute( 'identifier' ) . self::SUBATTR_FIELD_SEPARATOR . $baseName . self::SUBATTR_FIELD_SEPARATOR,
                                                           eZSolr::getMetaAttributeType( $baseName ) );
    }