An empty uri means that there is no URI assigned.
An empty uri means that there is no URI assigned.
The @id is a IRI/URI identifier
The @id is a IRI/URI identifier
a String which is empty if no @id is assigned, TODO: should this be an Option[String]?
deletes the Edge from the graph
deletes the Node from the graph
delete in-/out-going edges from the resource
deletes the Value from the graph
creates new transaction