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Vacatures bij AMIS services

Sharing session state between JEE web applications through WebLogic session descriptor of sharing-enabled

2
1 year ago
by Lucas Jellema in , ,

Session state in Java Web application is associated with a single (user) browser session on the one hand and typically with a specific web application on the other (server side) hand. Session state is created and maintained in the context of a usually a single web application. However…

We ran into a situation where our web application was assuming gigantic proportions. To complex to quickly deploy or even easily build, compile and test. On closer inspection, it was quickly revealed that the application really consisted of a number of relatively independent modules – say one for each of the options in the main menu and one for the entry point – main menu, login, manage user preferences etc. From a functional point of view, the big web app monster was by and large a collection of almost individual web applications. Almost because a substantial number of navigations took place between pages in these modules. And some context data – including credentials – should be passed on these navigations. The application was developed with such information stored in the session scope – as all modules always have access to a (shared) session scope, it was thought.

We got to the point where for More >

Vacatures bij AMIS services

JavaOne 2010 presentation: Why and how to engage a Complex Event Processor from a Java Web Application

0
2 years ago
by Lucas Jellema in , , , ,
Complex Event Processors are capable of handling large volumes of events – by filtering, aggregating or detecting patterns. Java Applications use a CEP to pre-process incoming signals. These applications can also generate the events – for example the user click and navigation behavior in the web application – and report them to the CEP. The web application can subsequently utilize the outcomes from the CEP to for example intelligently guide the user or present relevant details. This session shows various ways in which a CQL based CEP can be integrated into a Java application to enhance the web application’s behavior. The intended audience for this presentation consists of experience Web Java and Enterprise Java developers. - introduction to Complex Event Processing - demonstration of CQL event processing on events arriving on JMS - discussion of how the web application can absorb the CEP results - demonstration of a simple Web Shop application that published events to the CEP and utilizes the CEP results - discussion on when and how CEP can add value to Java applications
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