J-Fall 201541 Videos

Promo J-Fall 2015 – 5 november (CineMec, Ede)

Op donderdag 5 november 2015 organiseert de NLJUG wederom hét Java-evenement van Nederland: J-Fall 2015. Dit jaar zal J-Fall 2015 plaatsvinden op een nieuwe locatie in de bioscoop CineMec in Ede. De CineMec biedt toegang tot meer mensen, is ruimer opgezet, bevat een grotere keynotezaal en door de bioscoopconstructie heb je als bezoeker altijd goed […]

J-Fall 2015 Speaker Carlo Sciolla – Operating Clojure Microservices (Sytac)

The latest trend in software architecture, microservices help you optimizing your code towards continuous delivery and automomous product teams. However, they also introduce their own peculiar challanges when operating them in a live production site. This talk explores such challenges and provides a sample blueprint for a microservices based continuous delivery setup. The main language […]

J-Fall 2015 Speaker Johan Janssen & Martin Kanters – REST no more, use an actor

Tegenwoordig wordt de functionaliteit van de meeste applicaties zoals Microservices beschikbaar gemaakt door middel van een REST interface. Dat werkt best goed, maar zijn er wellicht betere oplossingen? Waarom zouden we geen (remote) actors gebruiken van Akka? We hebben een project uitgevoerd op Raspberry Pi’s waarbij Java applicaties elkaar aanriepen via REST. Sommige aanroepen gebeurden […]

J-Fall 2015 Speaker Jakub Marchwicki – What is code?

That sounds like an easy-to-answer question. A set of Java / Ruby / C# / Scala / Whatever tokens you mashup together everyday to get the business happy, right? If you are in the business long enough you know there are rules, there are means to keep you code clear, nice, readable. You know to […]

J-Fall 2015 Speaker Rob Brinkman – Turning a ‘82 Westy into a Tesla

Clearly, it’s totally impossible to match the elegance and technology of a Tesla in an almost 25 year old Volkswagen van. Though it would be pretty neat to turn my ‘82 Westy into a more connected car by adding sensors that communicate oil pressure, oil temperature, water level etc. over Wifi using ESP8266 chips to […]

J-Fall 2015 Speaker Peter van den Berkmortel & Erik Brakkee – Managing and monitoring a JVM

It is relatively easy to run a Java enterprise application under a low system load in a development environment. However, this gets a lot more difficult if the same application is running in production with a continuous high load, many concurrent users, performing many different tasks varying from short interactions (displaying an object), to long […]

J-Fall 2015 Speaker Jan-Willem van Hermon & Bert Gritter – Van wetboek naar online aangifte

Elke burger kent een mijnverzekering.nl of mijnbank.nl. Ook de Belastingdienst heeft sinds vorig jaar met mijnbelastingdienst.nl zijn eigen portaal voor particulieren. Het team OnLine Aangifte ontwikkelt voor dit portaal formulieren waarmee burgers online aangifte kunnen doen. In deze sessie bespreken hoe we voor het portaal de wet inkomstenbelasting vertalen naar een GWT-web-applicatie. Belangrijke uitdagingen als […]

J-Fall 2015 Speaker Bas Geerdink & Natalino Busa – Data Science in the Enterprise (ING)

Ing is a Data Driven Experimental Enterprise, which is heavily investing in big data, analytics and streaming processing. As in many other enterprises, we deal with a large variety of data sources. Some are responsible for primary processes, while others are used to improve the quality of the service and to keep internal operations going […]

J-Fall 2015 Speaker Gerrit Grunwald – Healthcare for the Elderly using the IoT (Oracle)

The Healthcare situation in cities might be good but for the elderly population on the country side it is often problematic. In this session it will be shown how one can use a mobile phone and a smart watch in combination with a Java based gateway and iBeacons to monitor the activity of elderly people. […]

J-Fall 2015 Speaker Jettro Coenradie – Handling, extending and presenting data with ELK+

More and more people are using the ELK (Elasticsearch Logstash Kibana) stack to analyse their data. Often what they do is using the default logstash, default elasticsearch and standard Kibana dashboards. I would almost say, to bad, since there is so much more possible with these tools. For numerous projects in aviation, car industry, healthcare […]