Project planning

From september on I've been working hard on a very exiting project. Thats why it has been very quiet on my weblog. However, in this project we found a lot of briljant solutions for common problems.... You can decide to avoid problems... but you can also try to solve them. The latter is what we did. Some solutions will be posted here shortly. I've more time now, so I'll try to post every week from now on.

Hint................

Using a Mulitselect listbox to create an in clause in a sql-query

And lots more.

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ADF 11g popup and panelwindow: Open wikipedia in a modal popup.

This post was more or less inspired by the noteWindow example on Oracles tag demo site. When hovering the highlighted text in this example the user gets extra information about the subject. I wanted to give the end user the opportunity to get even more information, for instance by invoking a wikipedia page about the subject. The catch here is that I wanted this information to be shown in a modal popup, and one that is not prohibited by popup blockers. Luckily ADF 11g provides javascript popups that can also be made modal, so the user has to close the popup before returning to the application. This post describes how I used an in a to open the correct wikipedia in a modal popup. Step 1: Create the plain text that invokes the noteWindow. This is taken directly from the mentioned Oracle example. <p style="margin-left:30px;width:500px;margin-right:30px;line-height:16px"> Vultures are scavenging birds, feeding mostly on the carcasses of dead animals...

ADF 11g : Show PDF in a Popup

In one of my previous posts I showed how to use ADF popup components to display external content such as webpages like wikipedia in an inline frame. Based on this post a colleague of mine tried to display a PDF document. That didn't work. In this post I explain how you can use a servlet to open a PDF document in the inline frame. I will not explain how to invoke popups. If you need to know how to do that, refer to the post mentioned earlier. How to create the servlet ? The solution for showing a PDF in a popup is to use a servlet. It's possible to have a servlet deliver PDF content to the browser by specifying the content type of the servlet response to be the 'application/pdf' MIME type via 'response.setContentType("application/pdf")'. In JDeveloper you can create a HTTP servlet very easy via the new gallery. I decided to call the servlet ShowPdfServlet which actually is a pretty descriptive name for this servlet. For the servlet mapping I accept th...

ADF 11g : Printing Directly From Your Application

Last week I was asked this question : "Can we print directly from within our ADF Application, without invoking the printer dialog ?" I wasn't sure but after some investigation the answer was clear. Yes you can ! Here is how... I decided to create a print start up form where I can select printers and print the document. Most of the functionality needed is provided by the Java Print Service API. Selecting available printers I start with a way to show all printers available to the session. For that I simply use the PrinterServiceLookup. PrintService[] printers = PrintServiceLookup.lookupPrintServices(null, null); The result I can now use to create an Array of SelectItems in order to make the list available in the application. 1: public SelectItem[] getAllPrinters() { 2: if (allPrinters == null) { 3: PrintService[] printers = 4: PrintServiceLookup.lookupPrintServices(null, null); 5: allPrinters = new SelectItem[printers.length]; 6: for (int i = 0; i ...

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