1. ClojureScript NYC DataScript Webinar


    from Dennis Heihoff Added 676 4 0

    Nikita Prokopov, author of DataScript presents an alternative approach to managing client-side application state, i.e. instead of a state map we get an immutable DB on the client to query from & transact on. Deployed app (markup only): http://tonsky.me/datascript-todo/ GitHub: https://github.com/tonsky/datascript-todo Read/try all about it: https://github.com/tonsky/datascript Follow Nikita: https://twitter.com/nikitonsky Agenda! - Create DB schema (multi-valued relations, references) - Ability to create todos (basic transact!) - Displaying list of todos (basic query) - Persisting database to localStorage (serialization/deserialization) - Make task completable (click on checkmarks) - Creating and displaying context and project on todos (entity navigation) - Creating and displaying tags on todos (multi-valued attrs) - Make left panel display task counts: project, context (aggregate queries) - Make left panel display task count for inbox (“negate” query — no project, no context, no due date) - Make left panel display “by month” grouping (custom fn call in a query) - Make left panel navigable (storing housekeeping app state in a db) - Filter bar to work as implicit OR (search by project, context, tags — rules) - Filter bar to work as implicit AND (query construction) — optional, if there will be time

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    • PossibleDB - A very alpha Datomic clone


      from cljdev Added 396 3 0

      PossibleDB - A very alpha Datomic clone

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      • August Lilleås - the Imminent Revolution of Fuctional Append-Only Databases


        from Arktekk AS Added 491 5 0

        This video was filmed during The flatMap(Oslo) conference which took place on the 12-13th of May 2014 in Oslo, Norway. flatMap(Oslo) is Norway's first dedicated Scala and functional programming conference. Abstract: http://2014.flatmap.no/speakers/lilleaas.html Track us: http://flatmap.no | http://twitter.com/#!/flatmaposlo | http://lanyrd.com/2014/flatmap/ flatMap(Oslo) 2014 could not be be possible without our fine sponsors: http://arktekk.no | http://finn.no/ | http://www.conax.com/ | http://bekk.no/ | http://iterate.no/ | http://miles.no/ | http://kodemaker.no/ | http://itera.no/ | http://nets.eu/ | http://webstep.no/

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        • Gregory Young - Querying Events


          from Erlang Solutions Added 518 8 0

          Code Mesh London is the best place in Europe for non-mainstream tech and programming languages. On 4-5 December 2013 over 50 inventors and originators of the most innovative languages and technologies of the moment shared their experience with 200 attendees. Topics included Scala, Haskell, Clojure, Erlang, Elixir, Julia and much more. See you at Code Mesh 2014! codemesh.io/ About the talk: In recent years Complex Event Processing (CEP) has been becoming more mainstream. Most however use CEP for processing near real-time data exclusively though. CEP has however other uses especially in Event Sourced systems namely that it can be used as a query language for temporal correlation queries as well as machine learning. This session will look at a language that does just this and how it can be used to scale to millions of events/second. Talk objectives: - Look at using CEP as a querying model for historical data

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          • Breaking Down Big Data with Datomic


            from Chariot Solutions Added 613 4 0

            Every database technology is a product of its time, optimized for a particular hardware profile. Today, “Big Data” is often synonymous with the Map/Reduce architecture and Hadoop but, as technology continues to evolve, cost/performance tradeoffs are changing. This talk will highlight some recent trends in data storage technology and distributed systems, with a focus on how Datomic takes advantage of those trends. Datomic is a new non-SQL database featuring ACID transactions, distributed storage, and a unique data model that encompasses change over time.

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            • Toff Datomic


              from Diego Pacheco Added 9 0 1


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              • Day 2 Keynote: The Datomic Architecture and Data Model - Rich Hickey


                from EuroClojure Added 1,550 13 0

                This talk discusses the design of Datomic, and the connections to the ideas behind Clojure.

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