Recording, slides and code resources for Oracle Code session: Real Time UI with Apache Kafka Streaming Analytics of Fast Data and Server Push

Lucas Jellema

On YouTube, you will find the 44 min recording of my talk on Oracle Code San Francisco (October 2017):  https://www.youtube.com/watch?v=khP3yHmbtpM The slides are on SlideShare: Real Time UI with Apache Kafka Streaming Analytics of Fast Data and Server Push (OracleCode San Francisco 2017) from Lucas Jellema All code sources are […]

OTN article: Speedy Perception trumps Speed Reception – on Smart Asynchronous Interactions in multi layered architectures

Lucas Jellema

The Oracle Technology Network has just published my article on asynchronous interactions used in multi-layered architectures to free up resources and create at least the perception of speedy processing. This article describes how, by leveraging opportunities for asynchronous processing, at least the perceived responsiveness of our systems is likely to […]

JavaOne 2012: Thinking Through Java Enterprise Performance (BOF 4712)

Lucas Jellema

Performance of Enterprise Java Applications is a requirement and usually a challenge. Business requirements on systems can be stiff, successful systems can easily be overloaded and complex application architectures can add a burden too. Improving performance by tuning the application after it has been built seldomly renders huge improvements. By […]

Publishing to CometD Bayeux Channel from inside the Oracle Database – PL/SQL based push to CometD Web Client

Lucas Jellema 1

In recent articles, I have introduced CometD as framework for Server to Client and Client to Client Push: Running CometD 2 examples – locally on Tomcat using Maven and NetBeans https://technology.amis.nl/blog/14709/running-cometd-2-examples-locally-on-tomcat-using-maven-and-netbeans, CometD 2 Java Client Sample – open project in NetBeans based on Maven pom file, modify sources and run […]

Stand-alone Java Client for jWebSocket Server – communicating from Java Client to Web Clients and vice versa over WebSockets

Lucas Jellema

In a previous article, I have discussed the open source jWebSocket Server and a simple installation and configuration (https://technology.amis.nl/blog/14940/first-steps-with-jwebsocket-open-source-java-framework-for-websockets-installation-and-running-samples). Subsequently, I have shown the implementation of a web client for a synchronized Slideshow application, where WebSocket communication is used to perform Client 2 Client push (https://technology.amis.nl/blog/14949/push-based-synchronized-slideshow-web-application-implemented-using-websockets-and-jwebsocket-server-the-open-source-java-websocket-server). In a third article […]

Implementing a Java Server Side component for jWebSocket Server for WebSocket interaction with Web Clients

Lucas Jellema 4

In a previous post – https://technology.amis.nl/blog/14949/push-based-synchronized-slideshow-web-application-implemented-using-websockets-and-jwebsocket-server-the-open-source-java-websocket-server – I discussed the implementation of the synchronized slideshow application using Web (HTML/JavaScript) clients and jWebSocket as websocket server. In an earlier article, I described the same for the Kaazing WebSocket server – https://technology.amis.nl/blog/14777/push-based-synchronized-slideshow-web-application-implemented-using-websockets-and-kaazing-websocket-gateway – and both stories are (fortunately) fairly similar. In the […]

Push-based synchronized slideshow web application – implemented using WebSockets and jWebSocket server – the open source Java WebSocket server

Lucas Jellema 2

In a recent article, I have introduced jWebSocket – an open source Java based server for WebSocket communication: https://technology.amis.nl/blog/14940/first-steps-with-jwebsocket-open-source-java-framework-for-websockets-installation-and-running-samples. In this article, I have described how to download and install the jWebSocket server and how to get going with running some of the distributed samples. In another recent article, I […]

First steps with jWebSocket – open source Java framework for WebSockets – installation and running samples

Lucas Jellema 6

This month, In have been delving into Push architectures for the Web, looking into WebSockets among several other things. WebSockets, a fairly new standard (!) evolved along with HTML 5, specifies a communication protocol that provides an alternative to classic HTTP communication. WebSocket based interaction has lower overhead and – […]

Push based synchronized Slideshow demo application implemented using CometD and jQuery running on Tomcat

Lucas Jellema 2

In a string of recent articles, I have discussed downloading, installing and running demos for a number of different tools, frameworks and libraries that support push-style (web) applications in one way or another. I have looked into ‘classic’ comet with Grizzly, Atmosphere and CometD as well as ADF Active Data […]

Push-based synchronized slideshow web application – implemented using WebSockets and Kaazing WebSocket Gateway

Lucas Jellema 9

In the last few articles, I have discussed downloading, installing and running demos for a number of different tools, frameworks and libraries that support push-style (web) applications in one way or another. I have looked into ‘classic’ comet with Grizzly, Atmosphere and CometD as well as ADF Active Data Service […]