@ignore
protected function serialiseResource($resource) {
if ($resource
->isBnode()) {
return $resource
->getUri();
}
else {
$short = $resource
->shorten();
if ($short) {
$this
->addPrefix($short);
return $short;
}
else {
$uri = str_replace('>', '\\>', $resource);
return "<{$resource}>";
}
}
}