public ExtendedIterator<Domain> executeBindings(
List<Stage> outStages, NamedGraphMap args, Node[] nodes) {
Mapping map = new Mapping(nodes);
ArrayList<Stage> stages = new ArrayList<Stage>();
addStages(stages, args, map);
if (constraint.isComplex()) stages.add(new ConstraintStage(map, constraint));
outStages.addAll(stages);
variableCount = map.size();
return filter(connectStages(stages, variableCount));
}
/** Preserve the state of an interpreter into this frame. */
public void preserveState(List<Node> trail) {
// Save the trail state
int trailLen = trail.size();
if (trailLen > trailLength) {
trailValues = new Node[trailLen];
trailVars = new Node_RuleVariable[trailLen];
}
trailLength = trailLen;
for (int i = 0; i < trailLen; i++) {
Node_RuleVariable var = (Node_RuleVariable) trail.get(i);
trailVars[i] = var;
trailValues[i] = var.getRawBoundValue();
}
// Save the permanent variables
Node[] currentPVars = envFrame.pVars;
if (currentPVars != null) {
if (pVars == null || pVars.length < currentPVars.length) {
pVars = new Node[currentPVars.length];
}
System.arraycopy(currentPVars, 0, pVars, 0, currentPVars.length);
}
}
private static NamedTripleBunches asNamedTripleBunches(List<Triple> pattern) {
NamedTripleBunches result = new NamedTripleBunches();
for (Iterator<Triple> elements = pattern.iterator(); elements.hasNext(); )
result.add(NamedTripleBunches.anon, elements.next());
return result;
}