Examples of org.openrdf.model.Model.subjects()

org.openrdf.model.Model.subjects()
Returns a {@link Set} view of the subjects contained in this model. Theset is backed by the model, so changes to the model are reflected in the set, and vice-versa. If the model is modified while an iteration over the set is in progress (except through the iterator's own remove operation), the results of the iteration are undefined. The set supports element removal, which removes the corresponding statement from the model, via the Iterator.remove, Set.remove, removeAll, retainAll, and clear operations. It does not support the add or addAll operations if the parameters pred or obj are null. @return a set view of the subjects contained in this model

            Model model = Rio.parse(data, "", RDFFormat.RDFJSON);
            
            // convert Sesame Model into a map to Metadata objects
            Map<String,Metadata> result = new HashMap<String, Metadata>();
            
            for(Resource subject : model.subjects()) {
                Metadata m = new Metadata(subject.stringValue());
                for(org.openrdf.model.URI property : model.filter(subject, null, null).predicates()) {
                    Set<RDFNode> propValue = new HashSet<RDFNode>();
                    for(Value value : model.filter(subject, property, null).objects()) {
                        propValue.add(parseRDFJSONNode(value));

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        assertEquals("Unexpected number of statements", 6, model.size());
        final Model bnodeModel = model.filter(null, uri1,
                vf.createLiteral(plainLit.getLabel(), XMLSchema.STRING));
        assertEquals("Blank node was not round-tripped", 1, bnodeModel.size());
        assertTrue("Blank node was not round-tripped as a blank node", bnodeModel.subjects()
                .iterator().next() instanceof BNode);
        if (rdfParser.getRDFFormat().supportsContexts()) {
            assertTrue(model.contains(st2));
        } else {
            assertTrue(model.contains(vf.createStatement(uri1, uri2, langLit)));

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