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Posted to dev@lens.apache.org by "Rajat Khandelwal (JIRA)" <ji...@apache.org> on 2015/03/26 12:17:54 UTC

[jira] [Created] (LENS-450) Provide Timeline implementation that stores ranges of presence.

Rajat Khandelwal created LENS-450:
-------------------------------------

             Summary: Provide Timeline implementation that stores ranges of presence.
                 Key: LENS-450
                 URL: https://issues.apache.org/jira/browse/LENS-450
             Project: Apache Lens
          Issue Type: Sub-task
            Reporter: Rajat Khandelwal
            Assignee: Rajat Khandelwal


Data structure should hold a list of Range elements. a range has two TimePartition objects, begin and end. Mathametically, it will represent the following set:
{noformat}
[begin1, end1) U [begin2, end2) U [begin3, end3) U ....

{noformat}

The following constraint will hold:
{noformat}

begin1 < end1 < begin2 < end2 < begin3 < end3 < ......

{noformat}



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