- All Implemented Interfaces:
- Serializable, Comparator<String>
- Direct Known Subclasses:
- Helpers.NullsBeforeB, Helpers.NullsBeforeTwo
- Enclosing class:
- Helpers
public abstract static class Helpers.NullsBefore
extends Object
implements Comparator<String>, Serializable
Compares strings in natural order except that null comes immediately before a given value. This
works better than Ordering.natural().nullsFirst() because, if null comes before all other
values, it lies outside the submap/submultiset ranges we test, and the variety of tests that
exercise null handling fail on those subcollections.
- See Also:
- Serialized Form