edit uri of existing resource using jena

Question

I try to modify the uri of an existing resource of a ontology model. I thought of creating a new model, new resource (including the new desired uri) and duplicating the cont

Answer 1

As you've found resources are immutable. You can bring about the same effect using ResourceUtils.renameResource(resource, newName). This goes through your model removing statements mentioning the old resource and adding the equivalents with the new, which is as close as you're going to get to a rename.

Example:

Resource renamed = 
  ResourceUtils.renameResource(originalResource, "http://example.com/new");

Answer 2

If you are doing this on a large database, it may be better to dump the database to Turtle or N-Triples, run a text changing script, and reload the database.

Answer 3

Use ResourceUtils.renameResource(oldResource, newURI). It does the iteration over all triples for you.