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