gRDFService->GetResource(NC_NAMESPACE_URI "FileSystemRoot",   &kNC_FileSystemRoot); gRDFService->GetResource(NC_NAMESPACE_URI "Child",            &kNC_Child);
gRDFService->GetResource(kURINC_FileSystemRoot,               &kNC_FileSystemRoot); gRDFService->GetResource(NC_NAMESPACE_URI "child",            &kNC_Child);
FileSystemDataSource::FileSystemDataSource(void)	: mURI(nsnull),	  mObservers(nsnull){    NS_INIT_REFCNT();    if (gRefCnt++ == 0) {        nsresult rv = nsServiceManager::GetService(kRDFServiceCID,                                                   nsIRDFService::GetIID(),                                                   (nsISupports**) &gRDFService);        PR_ASSERT(NS_SUCCEEDED(rv));	gRDFService->GetResource(NC_NAMESPACE_URI "FileSystemRoot",   &kNC_FileSystemRoot);	gRDFService->GetResource(NC_NAMESPACE_URI "Child",            &kNC_Child);	gRDFService->GetResource(NC_NAMESPACE_URI "Name",             &kNC_Name);	gRDFService->GetResource(NC_NAMESPACE_URI "URL",              &kNC_URL);	gRDFService->GetResource(NC_NAMESPACE_URI "FileSystemObject", &kNC_FileSystemObject);	gRDFService->GetResource(NC_NAMESPACE_URI "pulse",            &kNC_pulse);	gRDFService->GetResource(RDF_NAMESPACE_URI "instanceOf",      &kRDF_InstanceOf);	gRDFService->GetResource(RDF_NAMESPACE_URI "type",            &kRDF_type);        gFileSystemDataSource = this;    }}