Graph.size() reports '0' for TDB "urn:x-arq:UnionGraph"
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Key: JENA-222
URL: https://issues.apache.org/jira/browse/JENA-222
Project: Apache Jena
Issue Type: Bug
Components: TDB
Environment: tdb version 0.8.9 (via Apache Clerezza)
Reporter: Rupert Westenthaler
Priority: Minor
using
Dataset dataset = TDBFactory.createDataset(dir);
Model model dataset.getNamedModel("urn:x-arq:UnionGraph");
Graph graph = model.getGraph();
int size = graph.size();
size will always report zero regardless of the amount of triples stored in the
different named models of the dataset.
I think this is because com.hp.hpl.jena.tdb.store.GraphNamedTDB#countThis()
would need special treatment in case of "isQuadUnionGraph(graphNode) == true"
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