@Override
public void finished() {
contextsPending--;
if (contextsPending == 0) {
if (expression.union.hitExpression != null) {
for (EvaluationInfo evalInfo : new ArrayList<EvaluationInfo>(evaluations.values()))
evalInfo.doFinish();
if (positionTracker != null) positionTracker.expired();
}
}
tryToFinish();
}
@SuppressWarnings({"unchecked", "UnnecessaryBoxing"})
private Object computeResultItem(LongTreeMap result) {
switch (expression.resultType) {
case NODESET:
case STRINGS:
case NUMBERS:
return new ArrayList(result.values());
case NUMBER:
if (expression.relativeExpression instanceof Count) return new Double(result.size());
else {
double d = 0;
for (LongTreeMap.Entry entry = result.firstEntry(); entry != null; entry = entry.next())
d += (Double) entry.value;
return d;
}
case BOOLEAN:
return !result.isEmpty();
default:
if (result.isEmpty()) return expression.resultType.defaultValue;
else return result.firstEntry().value;
}
}