This section contains a short guide on how to work with VirtualGraph metadata.
The basic idea for this short guide: you may set up the virtual graph metadata extension on the entry graph in the RDF data unit.
As a result, such metadata is then recognized by Core DPUs. For more information about virtual graph metadata, symbolic names and entries, refer to:
Basic Concepts for DPU Developers
For example, the loader to Virtuoso may use such metadata, if properly set and transmitted by preceding DPUs, to automatically load each entry graph to a different target graph in the target Virtuoso.
The code below shows how you may set up the virtual graph extension
for the selected RDF entry graph with the symbolic name