@Override public T peek() { if(size() == 0 || !persistor.hasNext()) { return null; } Long lastId = persistor.lastId(); return persistor.get().apply(lastId); }
@Override public T peek() { if(size() == 0 || !persistor.hasNext()) { return null; } Long lastId = persistor.lastId(); return persistor.get().apply(lastId); }