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changes.mady.by.user Michael Durbin

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Query ExamplePurpose ServedNotes
Find the item(s) with a given dc:identifier.

When performing a migration or large ingest operation that may be halted or interrupted, being able to identify whether a particular item was ingested without storing information outside of the repository would allow resumption of the process.  For example, your ingest script could be roughly:

  1.  does item X exist in the repository (where X is identified by having a particular dc:identifier)
  2. if not, ingest it
  3. if so, go to the next item
While the example uses dc:identifier, it wouldn't be a problem to expand this to any directly applied user-managed triple.










Known Implementation Issues

The Modeshape implementation dynamically generates many of triples in its output.  For example, rdf:type triples based on whether a resource is a container or a binary, membership triples, and triples generated by Direct or Indirect Containers.  These generated triples are not persisted where it would be easy to search them.