java - How to iterate list of objects by object field with Google Guava lexicographical?

Question

Something like:

Ordering<Iterable<ImportXmlRecord>> comparator =
                Ordering.natural().lexicographical().onResultOf();

But sort by ImportXmlRecord field?

Answer 1

そうではありません：

Ordering<Iterable<ImportXmlRecord>> comparator = Ordering.natural()
  .onResultOf(new Function<ImportXmlRecord, Whatever>() {
    public Whatever apply(ImportXmlRecord x) { return x.getWhatever(); }
  }.lexicographical();