public Stream stream()

in commons-rdf-simple/src/main/java/org/apache/commons/rdf/simple/GraphImpl.java [153:172]


    public Stream<Triple> stream(final BlankNodeOrIRI subject, final IRI predicate, final RDFTerm object) {
        final BlankNodeOrIRI newSubject = (BlankNodeOrIRI) internallyMap(subject);
        final IRI newPredicate = (IRI) internallyMap(predicate);
        final RDFTerm newObject = internallyMap(object);

        return getTriples(t -> {
            // Lacking the requirement for .equals() we have to be silly
            // and test ntriples string equivalance
            if (subject != null && !t.getSubject().equals(newSubject)) {
                return false;
            }
            if (predicate != null && !t.getPredicate().equals(newPredicate)) {
                return false;
            }
            if (object != null && !t.getObject().equals(newObject)) {
                return false;
            }
            return true;
        });
    }