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Middleware Team

Middleware Team

Java get Class names from package String in classpath

By | Application integration & Middleware | 2 Comments

As a Java developer you probably used to know about reflexion. However, in order to keep your software architecture flexible, some functionalities are sometimes not provided out of the box by the JVM. In my particular case, I needed to find out every Class and Sub-Classes inside a package, thus reparteed within several Jars. Internet has lots of solution, but it remains complicated for everybody to reach this goal. After googleing, I found a link…

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Middleware Team

Documentum: some useful queries (DQL/IAPI)

By | Application integration & Middleware | 11 Comments

In this blog post I want to sharing some useful DQL and IAPI queries that I am using all the time. They are more dedicated to Documentum support/debug and grouped by components. In order to use them, I recommend Qdman: it is the best tool I know to use DQL and IAPI scripts. 1. xPlore It regroups both the search engine and the index management. DQL Dsearch select * from dm_document search document contains ‘manual.doc’…

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Middleware Team

Java Mission Control 5.2 (7u40) deserves your attention

By | Application integration & Middleware | No Comments

Recently, some new versions of java were made available. Most people think Java updates are boring and only security-oriented. But one of the last updates (7u40) includes a feature which deserves attention. I mean Java Mission Control 5.2. Hotspot incoming If you know the Oracle JRockit JVM a little bit, you might have heard about JMC, which was called JRockit Mission Control in the past. In fact, it’s a tool suite embedded with the Hotspot…

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Middleware Team

Understanding JVM Java memory leaks

By | Application integration & Middleware | No Comments

Lots of people think that Java is free of memory management as the JVM uses a Garbage Collector. The goal of this collector is to free objects that are no longer used in the program without the developer being forced to declare that the object can be collected. Everything is automatic. It’s really helpful and it avoids wasting time in managing memory. But, as it is an automatic process, it can produce some issues. They…

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Middleware Team

UKOUG Tech 2013 – Weblogic Java and Middleware 2

By | Technology Survey | No Comments

During this last day I also decided to follow the Middleware stream. I have continued to learn about future Oracle product strategies. In the web tier layer, Oracle will continue to support I planet web server but without adding new added value features inside. They insisted on the fact that OHS (Oracle HTTP Server) is still, and will be the preferred Oracle product as a web server. OHS is derived from Apache the famous free/open…

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Middleware Team

UKOUG Tech 2013 – Weblogic Java and Middleware

By | Technology Survey | No Comments

Today I attended the Middleware Weblogic stream. It was very interesting to learn a few things about the Oracle view and strategy around Java and Middle-tiers layer. On the perspective to continue to provide cloud management tools and products, Oracle wants achieve stronger integration between Weblogic and Databases, both in 12c versions about following features: Application availability with Transaction Gard Multitenant Database integration Database Connection Pool Global Data Services Oracle also made a introduction about…

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Middleware Team

UKOUG Tech 2013 – SOA and Oracle Fusion Middleware

By | Technology Survey | No Comments

This Monday I decided to follow the SOA – JAVA – BPM stream. I attended a presentation showing a high level overview of Oracle SOA and BPM Architectures, Oracle Fusion Middleware, and various product integrations. They have spoken a few about SOA principles, from legacy Systems and application, to the end Web Services. What we need to understand here, is that SOA is an intermediate / abstraction layer that aims to standardize accesses to more…

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Middleware Team

UKOUG Tech 2013: dbi services won the Weblogic Hackathon contest!

By | Technology Survey | No Comments

Today, we participated in two WebLogic presentations – and won the WebLogic Hackathon contest! But first, let’s talk about the sessions. The first session was a summarized overview of the Weblogic installation process. There are two manners to proceed. On the one hand, you can use a GUI based interface, and on the other, you can use the silent mode. At the end of the presentation, we installed a new Weblogic domain in a virtual…

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Middleware Team

Oracle Java EE 7 – an overview

By | Application integration & Middleware | No Comments

After announcing the availability of Oracle Java Enterprise Edition 7 (Java EE 7 or JEE7), Oracle organized a web event for the launch, covering topics such as the new features and the java community as well as showing some examples of the new APIs. This blog post summarizes some key points of this event. The show was driven by the following Oracle presenters: Hasan Rizvi, Executive Vice President, Oracle Fusion Middleware and Java, Oracle Cameron…

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Middleware Team

A comparison of Java Virtual Machines: Hotspot JVM vs JRockit JVM

By | Application integration & Middleware | 12 Comments

You might know that there are many JVMs available today, but do you know the difference between them? In this blog I will not state all JVMs as it will take too much time 🙂 But I will talk about Hotspot and JRockit, because they are pretty used and because they will eventually merge in Java 8! That’s what they say at least… What’s a JVM? Well this is a reminder and you might want…

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