private final DiffSink<Statement> stSink;
private final DiffSink<Namespace> nsSink;
private final DiffSink<String> cmtSink;
public RDFDiffCollector() {
adderCollector = new RDFCollector();
subtractorCollector = new RDFCollector();
stSink = new DiffSink<Statement>() {
public Sink<Statement> getPlus() {
return adderCollector.statementSink();
}