Java, JEE, OAS and WebLogic Server
Oracle Java and the application server
When running a Weblogic server and its managed servers I have heard at multiple projects that there is a need of automatic startup of these server processes. There is not default an options to create a windows service when installing Weblogic and for example SOA Suite. The one option that is available is to create a windows service for the node manager.
This small guide will show how to create a windows service for the Weblogic AdminServer, the node manager and the Managed server and setting up the evironment settings. For creating the Windows services a tool called NSSM (the Non-Sucking Service Manager) is used.
Recently the ADF SIG at AMIS organized an ADF DVT Speed Date. During this speed date six AMIS consultants presented their favorite DVT Component. In a series of blogposts we share the knowledge and findings. In this post you get introduced to the ADF DVT bubble graph. I will also show you how to make it interactive by clicking on the bubbles. The ability to make a graph interactive can be very usefull.
In the following bubble graph that we are going to create, the Life expectancy (y-axis), income a year (x-axis) and the population (bubble size) is shown. This in steps of 10 years, for the last 50 years (1970, 1980, 1990, 20000 and 2010). So for each country 5 bubbles are shown. The location of the bubble has a meaning; for example in Japan (grey) the life expectancy is the highest and in Pakistan the lowest (green). -Have developing countries moved forward their income? -Do they have longer lifes than 10, 20, 30, 40 or 50 years ago? A picture says more than thousand words – you can see it immediately in the graph.
Recently started the Oracle program: Are You The Smartest. For me it is an opportunity to test my current knowledge level and to extend my knowledge. After every session I follow, I will write a brief summary as part of the preparation for the test. I will continue with the summary of the following session.ARCHITECTS TRAINING – SERVICE INTEGRATION – Oracle RUEI – Maximize business value by insight into real end-user experiences
This short (45 minutes) session was divided into the following four parts:
- Why is it important to bring up RUEI to customers?
- Basic explanation of the technology
- Use cases
The ADF framework strongly suggests if not dictates a certain application architecture. Through ADF BC (Business Components) – the predominant business service implementation with ADF – applications will typically interact directly with the database, over JDBC Database Connections from a shared connection pool. Developers who create the ADF BC Entity Objects and View Objects will be quite aware of the data model and the database implementation. They will usually write SQL. And the result of their work is substantially coupled with the database. Transactions across multiple data source are very hard to implement in that typical ADF BC scenario because ADF BC talks to a single database and typically controls its own transaction.
When ADF applications are developed in an environment where an enterprise architecture has been laid down, and decoupling is an important objective and service orientation is mandated – then this typical implementation of the business service using ADF BC connecting directly to the database may not be desirable or even allowed.
On one of my projects, we are currently in the situation where we try to determine the guidelines for the implementation of the More >
In a recent article – Advanced SQL to find valid periods – juggling with outer joins, running totals and analytical functions – I discussed how to use Analytical Functions in SQL to cleverly (!) derive the valid periods from a database table that contains periods of inclusion and exclusion. A valid period is a period for which there is at least one inclusion and for which there is no exclusion. I used several powerpoint based graphics to illustrate the business case. For example:
to depict the periods of inclusion and exclusion and this figure to demonstrate how to derive the valid periods (the blue bars):
After completing this article – and fiddling around in Powerpoint quite a bit – I realized that for visualizing data in a table, I have a perfect tool at my fingertips: the Data Visualization Tags (DVT) in ADF 11g are created for this very purpose: turning data into information through visualization. And this rich library of DVTs components contains – in addition to fairly straightforward visualizations such as bar charts, pie charts and line graphs – also more complex visualization components such as the Bubble Chart, Thematic Map and Gantt Chart. The Gantt Chart has three More >
With Maven we are able to build & deploy OSB projects. The artifacts generated by Maven called snaphosts and releases can be automatically uploaded to a software repository. These versioned OSB jars can then be downloaded by the OSB Servers and deployed ( this can be a Test, Acceptance or a Production OSB Server).
In this blogpost I will guide you through this OSB build and release process, so you can do the same with or without Hudson or Jenkens
For this blogpost I will use this maven test project on github, this also contains a working OSB Eclipse Workspace which you can use for your own testing.
First step is to create a Maven POM file and put this on the Eclipse Workspace or Project level. The Workspace pom should build the whole workspace and the pom in a project only that particular OSB project.
The pom always start with the groupId & artifactId and a version. A normal Maven build will always have an number with snapshot as version, a release will build the OSB project without snapshot and automatically will update the version to a higher number and commits the updated pom.xml with the new higher snapshot version.
For releases we need to provide a version repository and in More >