Unraveling delimited continuations

Please note: for security reasons, Palantir Security asks that you show identification at the door.  If you prefer not to show identification, you can have a visitor badge created (with your photo) when you arrive.

If you've heard about the delimited continuations plugin in Scala 2.8+, but been intimidated by them then this talk is for you.  Matthew Neeley and James Douglas will explain what delimited continuations are and how they can be used with some real-world scenarios to solve interesting problems.

Matthew will start with introductory material and examples, including delimited continuations for action composition with Play 2, Akka's data flow feature, C#-style async/await) and resource management. James will then discuss his "imperatively" project, which uses delimited continuations to build complex, multi-step Web workflows out of easy to follow imperative code. There will be a shared Q & A session at the end. Matthew and James encourage questions throughout.

The schedule for the event is:

6:30 - networking, food

7:00 - announcements

7:10 - Matthew presents

8:10 - James presents

8:40 - Q&A

Palantir is providing water, soda, beer and food.

We will give away two copies of IntelliJ IDEA 11 for personal use, and two copies of JRebel. Two free PDF copies of "Actors in Scala" by Philipp Haller and Frank Sommers and published by Artima will also be given away. If you did not register with your full name you will not be eligible to win anything. You can edit your name by going to Members / My Profile / Edit Profile.

This event will be recorded.

Matthew Neeley has a PhD in physics from UCSB, where he worked on quantum computing with superconducting qubits.  He continued his research at MIT Lincoln Laboratory before deciding that the most enjoyable part of experimental physics was writing code, so why not do that full time?  He now works at NetWallet in Palo Alto.

James Douglas is a Forward Deployed Engineer at Palantir, where he focuses on functional Web APIs built on a variety of JVM-based stacks.  He has a special interest in theoretical computer science, including delimited continuations and how they are useful to applied programming.

Join or login to comment.

  • A former member
    A former member

    Excellent talks by two highly competent speakers. They've now set a very high bar and if the subsequent meetups are even in the same range I'll be very pleased.

    July 17, 2012

  • John R.

    A lucid, logical and clearly-motivated unfolding of the subject! Great explanations of what delimited continuations are, how to get started with them, and why you would want to use them in the first place.

    July 10, 2012

  • Alex C.

    good technical talk. Clear presentation. I learned a lot. Thanks!

    July 10, 2012

  • Erik B.

    Very clearly presented. Thanks.

    July 10, 2012

  • Taneli O.

    Matthew explained the details, and James gave the simple examples.
    I would had been less of a headache, if the order had been reverse.

    July 10, 2012

  • Jim K.

    Yes, many thanks!

    July 9, 2012

  • Matthew T.

    Thanks, guys!!

    July 9, 2012

  • Matthew N.

    My slides are also up here:

    July 9, 2012

  • James Earl D.

    The slides for my talk on Imperatively are available here: http://jamesearldouglas.github....­

    The project itself is on GitHub: https://github.com/JamesEarlDoug...­

    July 9, 2012

  • al f.

    The other guests may not be aware of this, but by swiping your drivers licenses, Palantir Technologies committed a crime under CA law. See:


    July 9, 2012

Our Sponsors

  • ScalaCourses.com

    Online and on-site training

  • Box

    Space to host meetups and food sponsorship for meetups hosted at Box HQ

  • Artima

    Scala Books

  • IntelliJ

    Free copies of IDEA given away each meetup

People in this
Meetup are also in:

Imagine having a community behind you

Get started Learn more

I started the group because there wasn't any other type of group like this. I've met some great folks in the group who have become close friends and have also met some amazing business owners.

Bill, started New York City Gay Craft Beer Lovers

Start your Meetup today

Act now and get 50% off.
Until February 1.

Sign up

Meetup members, Log in

By clicking "Sign up" or "Sign up using Facebook", you confirm that you accept our Terms of Service & Privacy Policy