Verifies graphmlPath is empty.
Verifies graphmlPath is empty.
Array[Row] elements in format (crawl_date, src_domain, dest_domain, count)
output file
Produces the GraphML output from an Array[Row] and outputs it to graphmlPath.
Produces the GraphML output from an Array[Row] and outputs it to graphmlPath.
a Dataset[Row] of elements in format (crawl_date, src_domain, dest_domain, count)
output file
true on success.