How to lookup information based on IP address – e.g. for Website-visitors
During the last few years I have had several occasions to wonder who used the website and web-applications I had helped develop and deploy. Most recently I had this …
Category: Java
Paper on JDeveloper as tool for PL/SQL Development
Tonight I completed a paper on using JDeveloper as a tool for Database Design and Generation as well as PL/SQL Development. This paper is in Dutch and will be …
SVG, XSLT and JSP/JSTL: Generating Digital Gauge or Speedometer Chart based on dynamic data
SVG in combination with XML/XSLT is a tremendously powerful architecture to produce dynamic charts based on XML data – that can easily be generated from databases such as Oracle …
AMIS Technology Weblog – Statistics, Graphics and Becoming an Author (‘blogger’)
In July 2004 we at AMIS started this Weblog. Initially we primarily wanted to share knowledge among all people working at AMIS. Later we decided to make the Blog …
Java-XML Binders Compared
(Pre)-compiling JSP for Tomcat with Jasper
When working on a project I like to precompile my JSPs just to test if haven’t made any (syntax) errors or forgot any resources, without having to deploy them …
JHeadStart ADF beta
January 4, 2005
AMIS, Announce / Events, Development Tools, IT, Java, Oracle, Oracle WebLogic Server, Tools, Web HTML5 CSS3, Web/Java
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For some time now there have been some excellent viewlets on OTN on the functionallity of the next generation JHeadStart version which will work with Oracle Application Development Framework …
JDeveloper 10.1.2 has arrived
JDeveloper release 10.1.2 is finally available for download (here). This is a maintenance release with some new features and over 1,000 bug fixes for JDeveloper 9.5.0.2.
Generating SVG Graphics in JSPs using JSTL & XSL(T) – from MySQL to Bar Chart and Pie Chart
This post discusses how data retrieved from a MySQL or Oracle database using the JSTL SQL tags is processed as XML document, transformed using XSL and rendered as SVG …
UML version 2.0
Introduction Although UML 2.0 is not completely new, I was not able to have a look at it until now. For people like me, and for other people who …
XSL Transforming XML generated from SQL results using JSTL tags in JSP pages – putting JSTL to the test
While working on more advanced Statistics Reporting for our weblog, I did some investigations into JSTL and more specifically the XML and SQL tags. Yes, I know I have …
AMIS Query – Oracle BPEL Process Manager Dissected (Thursday 27th January)
BPEL is emerging as the standard for assembling a set of discrete services into an end-to-end process flow, radically reducing the cost and complexity of process integration initiatives. The …
Steve Muench on improving ADF performance
December 10, 2004
AMIS, IT, Java, Oracle WebLogic Server, Tools, Web HTML5 CSS3, Web/Java
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Yesterday we had a technical session at Amis on ADF. In one discussion a concern was raised on how all the ADF metadata and the abstractionlayers would affect performance. …
jWebUnit
During my current project, i encountered jWebUnit, a unittesting framework based on jUnit and HttpUnit. Old news for some, new for me. Since we already had some posts on …
Oracle JDeveloper 10.1.3 Developer Preview is here …
December 6, 2004
AMIS, IT, Java, Oracle, Oracle WebLogic Server, Tools, Web HTML5 CSS3, Web/Java
9 Comments
The Oracle JDeveloper release 10.1.3 Developer preview release can be downloaded from OTN. See JDeveloper Homepage “The Oracle JDeveloper 10g (10.1.3) release adds many new features, including a new …
JDBC database copy of table contents
For one of our projects, we wanted to copy the contents of our production database to the test database. Both databases are accessible via JDBC. After an investigation of …
Putting SPELs on ADF Code
There is a simple way to use the Expression language you use in JSTL expressions in your JSP’s, in ADF’s DataAction. Actually anywhere you can get hold of a …
JDeveloper bug – ClassNotFound
Every once in a while for no apparent reason a JDeveloper ADF/Struts project gets corrupted. When compiling the project I get an error that a certain class cannot be …
Toplink’s Object to XML mapping
November 25, 2004
Databases, Java, Oracle, Oracle WebLogic Server, Tools, Web HTML5 CSS3, Web/Java
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On OTN there is an excellent online seminar (replay) on the TopLink Object-to-XML support. This feature, which will be available in the upcoming 10.1.3 release, allows converting XML files …
WSRF: modeling state with Web Services
In the whitepaper titled Modeling Stateful Resources with Web Services by Ian Foster et. al. the latest developments with respect the modeling of state with web services are very …
Deploy an Oracle JHeadstart/BC4J application to IBM WebSphere
If you’ve created a J2EE JHeadstart/BC4J application and you want to deploy it to the Oracle Application Server, it works easily. If you want to deploy it to IBM …
Quick and easy SSL in OC4J Standalone
During development it is sometimes necessary to able to run your webapplication under SSL. To obtain a test certificate from verisign can sometimes take a little too much time …
ADF BC classes & methods overview
Steve Muench wrote up a superb overview of the most commonly used classes, interfaces & their methods in the ADF BC framework (formerly known as BC4J). You might want …
Setting up Oracle JNDI Datasource on Tomcat
In one of the projects I’m involved in we have to make use of specific Oracle JDBC features. The application runs on Tomcat 5.0.27 and connects to the database …
CSS editor in JDeveloper
Last year I spent a lot of time on a project using Eclipse as IDE. I like it very much. I allways call it a real developers tool. It …
Struts, JAAS, Tomcat: getting acquainted (part 2)
In Struts, JAAS, Tomcat: getting acquainted (part 1) it was discussed how to employ JAAS authentication for custom and/or legacy realms under Tomcat. As authorization was left unaddressed, we …
Hibernate: dealing with lazy loading inevitable
In Hibernate + Middlegen Roundtrip Development applied it was shown how to generate Hibernate POJOs + mapping files from a legacy (SQL server) database. As soon as business objects …
Struts, JAAS, Tomcat: getting acquainted
The Java Authentication + Authorization Service (JAAS) provides a standard API for making non-standard (i.e. custom) realms available to your application server, see e.g. this article on JavaWorld. To …
Profiling in Eclipse
Profiling makes it possible for developers to track down in what code their application spends its time. Check out this Eclipse plugin for profiling Java applications. Looks really good. …
Interesting articles on various subjects
November 5, 2004
Database, IT, Java, Oracle, Oracle WebLogic Server, PL/SQL, Web HTML5 CSS3
1 Comment
In this post I collect references to interesting articles on a variety of topics – Java, SQL, Business Intelligence, Web Services, HTML/CSS, JavaScript – that I have come across. …
Working with Omondo's EclipseUML Free Edition
In my last post I reviewed the Omondo EclipseUML Free Edition. In this post I want to present a more elaborate description/howto, allowing myself to focus a bit more …
Evaluation Omondo EclipseUML Free Edition
UML diagrams are used during (almost) the whole software product development life cycle: from requirements analysis (use case diagrams) to deployment (deployment diagrams). In this post I will review …
Google Desktop Search – no more agonizing searches for lost documents
This weekend I installed the Google Desktop Search tool. It is currently in Beta, it is free, about 400K in size and can be downloaded from http://desktop.google.com/. After you …
JDeveloper BPEL plugin
Today I attended an excellent online Oracle Seminar on the BPEL Process Manager by Sandor Nieuwenhuijs. I think most of the content is covered by a previous post by …
JBoss releases library for Aspect Oriented Programming
JBoss just released JBoss AOP 1.0 Final production release. See the announcement on The Server Side – JBoss AOP 1.0. It has a plugin for Eclipse but can be …
AMIS publishes Extensions for the JHeadstart Application Generator
Today AMIS announces the immediate availability of the AMIS JHeadstart Application Generator Extensions. A free set of enhancements for JHeadstart 10g (9.0.5.x) that will allow you to generate much …
Deployment under JBoss-4.0.0 with Eclipse's JBoss-IDE plugin
This evening I successfully re-deployed my application to JBoss-4.0.0. It used to be deployed under JBoss 3.2.4 using the Lomboz plug-in. Although the JBoss-IDE plug-in involves a bit more …
AMIS Library System – JHeadstart 9.0.5.x (BC4J, JSP+JSTL) Demo Application released
October 20, 2004
Java, Oracle Application Development Framework, Oracle WebLogic Server, Tools
No Comments
Today, AMIS released the JHeadstart 9.0.5.x version of the ALS application for BC4J and JSP/JSTL. Download the zip-file with the entire application, the database setup and the JDeveloper 10g …
BC4J and Distributed deployment (in particular of JHeadstart Applications)
Thusfar we have been lucky – or careless – to not have had to consider distributed application deployment. However, web-applications running in the DMZ accessed by internet users directly …
BI Beans and Export to Excel
BI Beans only provides export to CSV to be imported into Excel, at least up to the 9.0.4 release: News from the BI Beans product team: In the 9.0.5 …