public PathIteration(
StrictEvaluationStrategy evaluationStrategyImpl,
Scope scope,
Var startVar,
TupleExpr pathExpression,
Var endVar,
Var contextVar,
long minLength,
BindingSet bindings)
throws QueryEvaluationException {
this.evaluationStrategyImpl = evaluationStrategyImpl;
this.scope = scope;
this.startVar = startVar;
this.endVar = endVar;
this.startVarFixed = startVar.hasValue() || bindings.hasBinding(startVar.getName());
this.endVarFixed = endVar.hasValue() || bindings.hasBinding(endVar.getName());
this.pathExpression = pathExpression;
this.contextVar = contextVar;
this.currentLength = minLength;
this.bindings = bindings;
this.reportedValues = makeSet();
this.unreportedValues = makeSet();
this.valueQueue = makeQueue();
createIteration();
}
@Override
public void meet(Var var) {
if (toBeReplaced.equals(var)
|| (toBeReplaced.isAnonymous()
&& var.isAnonymous()
&& (toBeReplaced.hasValue() && toBeReplaced.getValue().equals(var.getValue())))) {
QueryModelNode parent = var.getParentNode();
parent.replaceChildNode(var, replacement);
replacement.setParentNode(parent);
} else if (replaceAnons && var.isAnonymous() && !var.hasValue()) {
Var replacementVar = createAnonVar("anon-replace-" + var.getName() + index);
QueryModelNode parent = var.getParentNode();
parent.replaceChildNode(var, replacementVar);
replacementVar.setParentNode(parent);
}
}