Ephemeral

C# Library to handle time intervals (composite start and end)

• Support for open and closed (time) intervals.
• Support for common operations like Covers(), Intersect(), Join(), etc..
• Support for (disjoint) collections of intervals.
• Makes use of Optional to avoid returning null in many of the built-in operations.

The API-documentation is hosted at albertogregorio.com/ephemeral.

Examples

Interval Example

var now = DateTimeOffset.UtcNow;
Interval yesterday = Interval.CreateOpen(now.AddDays(-1), now);
Interval today = yesterday.Shift(TimeSpan.FromDays(1));

yesterday.Overlaps(today); // returns true

(Disjoint) Interval Collection Example

IDisjointIntervalSet collection = new DisjointIntervalSet();
collection.Add(yesterday);
collection.Add(today);
collection.Start == yesterday.Start; // true
collection.End == today.End; // true

var yesterdayAndToday = yesterday.Union(today);
collection.equals(yesterdayAndToday); // true

var consolidatedCollection = yesterdayAndToday.Consolidate(); // joins the two internal intervals into one
yesterdayAndToday.Count(); // 2
consolidatedCollection.Count(); // 1