Does an open-ended interval implementation exist for Java?

Question

I've got a classification of certain values in different intervals. Most have the form [20-30], but some are of the form [30-infinite).

Is there an interval class you know of which can represent:

score 3 · Answer 1 · edited Jul 19 '15 at 15:20

3

The Apache-commons-lang project (http://commons.apache.org/lang/) contains classes dealing with ranges (like IntRange - https://commons.apache.org/proper/commons-lang/javadocs/api-2.6/org/apache/commons/lang/math/IntRange.html). I'm not sure it covers all your needs, but it might be worth checking.

edited Jul 19 '15 at 15:20

Eyal

answered Apr 07 '09 at 12:42

Gadi

I've seen the ranges, but since they are type specific they are not so useful as the classes from the Time&Money library. – boutta Apr 07 '09 at 13:37
1

The [Apache 3 version of Range](http://commons.apache.org/proper/commons-lang/apidocs/org/apache/commons/lang3/Range.html) uses generics. – Eyal Jul 19 '15 at 14:40

score 1 · Answer 2 · answered Apr 07 '09 at 08:09

1

I know of no library classes, but I recall rather trivially writing such classes.

answered Apr 07 '09 at 08:09

tpdi

score 1 · Accepted Answer · answered Apr 07 '09 at 08:48

1

Time&Money project seems to have Interval class that you need.

See these files in their svn: interval package.

answered Apr 07 '09 at 08:48

Sergey

4

Using that sounds expensive and time consuming. – tpdi Apr 07 '09 at 08:55
Why do you think it's expensive? – boutta Apr 07 '09 at 09:09
@tpdi these few classes can just be copied if you mean including the whole library. It's under MIT license. – Sergey Apr 07 '09 at 09:16

score 0 · Answer 4 · answered Nov 08 '21 at 11:41

0

For those who might end up here, you can have a look at Google Ranges which are exactly what was asked here.

answered Nov 08 '21 at 11:41

Alain P

4 Answers4