a reusable sap pool
Through SAP JCO we can gather SAP information within Java. I’ll explain the basics here while I’m revealing a library piece by piece. SAP Connection First we need to connect to SAP....
interface vs abstract class
I’ll keep it simple… Interfaces should be seen as a contract, they define some method signatures which need to be implemented by any implementing class. Use Interfaces for code that can change...
about collections, the basics
Let’s talk about collections. You’ve got several options, only one is right. First of all an overview of the Interfaces Map: have key and a value. With the key the value can...
jakarta commons
The jakarta commons project is a great example of reusability. It’s a collection of utilities that can be used independently. The only problem is a lack of documentation. There are some books...
my java resources
The following is a list of my freguently used java resources, I might keep this up to date. java.net javaworld javaboutique java.sun.com developer.com/java onjava.com http://planetjdk.org/ http://www.ibm.com/developerworks/java If anyone has more resources please...
client side validation
I was looking for a good validation framework. Some options: jsVal wForms dexagogo I eventually used jsVal. The inline form initialisation is very easy in use. Regex are supported and some specific...
fn:replace carriage return with br
So I have a String that needs to be passed through as a javascript method argument. Problem is this String is user input and therefore can contain newlines so code can be...
yes I use firefox, my plugins
I use firefox for developping webclient frontends. That’s why: I can change my css file on the fly and see what happens in browser with EditCSS Well the users will most likely...
about spring SimpleFormController
When extending the SimpleFormController you might need some referenceData to be available after submitting the form. For example usefull when formView and successView are equal. This can be achieved by overriding the...
GUI’s should be simple, attractive and user friendly
Ok I’m a programmer and graphical design is just not my thing. But that doesn’t mean my applications don’t need an appealing frontend. So let’s see what I do to present my...