public static Explain<Integer> getPressedNumber(Integer keyCode) {
List<Function<Integer, Explain<Integer>>> preds =
Arrays.asList(
Explain.mkPred(k -> k >= '0' && k <= '9', k -> k - '0'),
Explain.mkPred(k -> k >= K.VK_NUMPAD0 && k <= K.VK_NUMPAD9, k -> k - K.VK_NUMPAD0),
Explain.mkPred(k -> k >= K.VK_F10 && k <= K.VK_F12, k -> k - K.VK_F1 + 1));
return preds.stream().anyMatch(pr -> pr.apply(keyCode).isSuccess())
? preds.stream().map(pr -> pr.apply(keyCode)).filter(e -> e.isSuccess()).findAny().get()
: new Explain<>(false, "No Number With Such Keycode! " + keyCode);
}
public <T> T eachNode(ReadChildrenEach<T> readJob) {
DBCursor cursor = null;
try {
cursor = collection.find(filters(), fields(), skip, offset).sort(orderBy).limit(offset);
if (this.hint != null) cursor.hint(hint);
else if (this.hintIndexName != null) cursor.hint(hintIndexName);
session.attribute(Explain.class.getCanonicalName(), Explain.create(cursor.explain()));
ReadChildrenIterator citer = ReadChildrenIterator.create(session, cursor);
T result = readJob.handle(citer);
return result;
} finally {
IOUtil.close(cursor);
}
}