/** Full dump for debugging */
public String dump() {
return rdfNode.getLocalName()
+ siblings.dump()
+ " succ="
+ dumpSet(succ)
+ ", succClose="
+ dumpSet(succClosed)
+ ", pred="
+ dumpSet(pred);
}
/** Create a list of triples for a given set of successors to this node. */
private List<Triple> triplesForSuccessors(Node base, boolean closed, TransitiveGraphCache tgc) {
Set<GraphNode> successors = closed ? succClosed : succ;
ArrayList<Triple> result = new ArrayList<>(successors.size() + 10);
result.add(new Triple(base, tgc.closedPredicate, base)); // implicit reflexive case
for (GraphNode s : successors) {
result.add(new Triple(base, tgc.closedPredicate, s.rdfNode));
s.siblings.addSuccessors(base, tgc, result);
}
siblings.addSuccessors(base, tgc, result);
return result;
}
public Iterator<GraphNode> concatenateSiblings(Iterator<GraphNode> base) {
return WrappedIterator.create(base).andThen(siblings.siblingIterator());
}
public Iterator<GraphNode> siblingIterator() {
return siblings.siblingIterator();
}
/**
* Return the lead node in the strongly connected component containing this node. It will be the
* node itself if it is a singleton or the lead node.
*/
public GraphNode leadNode() {
return siblings.leadNode(this);
}
// should only be called on a lead node
private Set<GraphNode> siblings() {
return siblings.members();
}