Java 8 LocalDate - How do I get all dates between two dates?

Question

Is there a usablility to get all dates between two dates in the new java.time API?

Let\'s say I have this part of code:

Answer 1

You could use the Range functionality in Google's Guava library. After defining the DiscreteDomain over LocalDate instances you could get a ContiguousSet of all dates in the range.

LocalDate d1 = LocalDate.parse("2017-12-25");
LocalDate d2 = LocalDate.parse("2018-01-05");

DiscreteDomain localDateDomain = new DiscreteDomain() {
    public LocalDate next(LocalDate value) { return value.plusDays(1); }
    public LocalDate previous(LocalDate value) { return value.minusDays(1); }
    public long distance(LocalDate start, LocalDate end) { return start.until(end, ChronoUnit.DAYS); }
    public LocalDate minValue() { return LocalDate.MIN; }
    public LocalDate maxValue() { return LocalDate.MAX; }
};

Set datesInRange = ContiguousSet.create(Range.closed(d1, d2), localDateDomain);