[jboss-jira] [JBoss JIRA] (DROOLS-3594) FEEL: Implement the interval-based algebra functions as defined by J.F. Allen

[Edson Tirelli (Jira)]

Edson Tirelli created DROOLS-3594:
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             Summary: FEEL: Implement the interval-based algebra functions as defined by J.F. Allen
                 Key: DROOLS-3594
                 URL: https://issues.jboss.org/browse/DROOLS-3594
             Project: Drools
          Issue Type: Enhancement
          Components: dmn engine
    Affects Versions: 7.17.0.Final
            Reporter: Edson Tirelli
            Assignee: Edson Tirelli


In his paper "An interval-based representation of temporal knowledge", J.F.Allen defines an algebra to resolve interval relationships.

This algebra is implemented already in Drools core to deal with events.

This ticket is an RFE to implement similar functions in FEEL to support such algebra in DMN.

The list of functions is:

* before
* meets
* overlaps
* finishes
* includes
* starts
* coincides
* after
* metBy
* overlappedBy
* finishedBy
* during
* finishes

Details of the semantics can be found in the attached presentation, slides 24 and 25.




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