lekkimworld.com - Java category

developerWorks article - Going wild with generics (Understanding wildcard capture)

Tue, 13 May 2008 10:08:00 GMT

Although being a little hairy this article is quite interesting if you're doing stuff with generics in Java.

Java theory and practice: Going wild with generics - Understanding wildcard capture

Update: I can really recommend the Sun tutorial on Generics if you want to get up to speed on Generics.

developerWorks: Plug-in development 101

Fri, 04 Apr 2008 05:50:00 GMT

Are you ready to get going on development of plug-ins for the Notes 8 client (Eclipse)? If you are then look no further than this series of articles on developerWorks: Plug-in development 101. It's a bit sad that it isn't Notes 8 specific but hey it's in the Open Source zone but even though you get the basics of the necessary steps for creating plug-ins.

Setting table row height in SWT

Thu, 27 Mar 2008 07:02:00 GMT

So it appears you can actually set the row height of a SWT table despite me previously saying you couldn't. The caveat is that it cannot be set on a per row basis. Row height is set using a Listener for SWT.MeasureItem and then setting the height property of the supplied event object as shown below.

// resize the row height using a MeasureItem listener
table.addListener(SWT.MeasureItem, new Listener() {
   public void handleEvent(Event event) {
      // height cannot be per row so simply set
      event.height = 67;
   }
});

If need be you could compute the actual height using the GC.stringExtent(String).y and simply set to the biggest value you encounter.

Information from Custom Drawing Table and Tree Items at Eclipse.org.

Announcing TwitNotes - a Twitter plug-in for Notes 8

Thu, 20 Mar 2008 23:18:00 GMT

The below screenshot should speak for itself but in case it doesn't let me explain... Last night and tonight I have been writing a Twitter plug-in for the Notes 8 Standard sidebar. I got tired of using BeTwittered and really wanted a real Notes 8 sidebar plug-in as I have some other ideas I want to incorporate. Once I finalize the plug-in tomorrow and get it on an update site you can install it if you're interested.

Initial features:

Pure SWT application
Integration with the Accounts API
Preferences via Notes 8 Preference pages (auto refresh (yes/no), refresh interval, number of posts to show, refresh after posting).
Shows the Twitter profile image of the poster.
Posts to Twitter.

Article: Designing composite applications: Writing an Eclipse component for IBM Lotus Notes

Mon, 17 Mar 2008 14:39:00 GMT

"This article introduces some helper classes so you can quickly build and deploy feature-rich, reusable, Eclipse-based components for IBM Lotus Notes. You also learn how to create a foundation upon which other components can be created quickly and easily."

Designing composite applications: Writing an Eclipse component for IBM Lotus Notes by Craig Wolpert and Jo Grant from IBM @ IBM developerWorks.

Initializing Java Maps

Fri, 14 Mar 2008 20:12:00 GMT

Elias Torres: Initializing Java Maps

Contributing to a developerWorks wiki

Wed, 12 Mar 2008 16:41:00 GMT

Today I entered the IBM wiki world by contributing to the Composite Application wiki over at developerWorks. It all started with me having to figure out how to add menu items to the menu of a sideshelf component. I found the answer in the wiki (for those interested it's quite easy using the org.eclipse.ui.viewActions extension point). What I didn't find was an example of how to programmatically add actions which I also needed so once I figured it out I added the information to the wiki. Programmatically adding actions is useful if you don't know which actions to add at compile and/or deployment time.

So if you go to the page on creating sideshelf components you'll find a section on programmatically adding actions.

I really like the idea of the wikis and I really feel good after having contributed. Get some, give some.

P.S.: I know I'm still way behind blogging on my holiday compared to Ed Brill... :-)

developerWorks article - Configuring and adding menu items in Eclipse V3.3

Mon, 25 Feb 2008 17:45:00 GMT

Nice article on developerWorks on the new extension point for action bars, menu items etc. in Eclipse 3.3. This will have consequences for you guys developing SWT stuff for Notes 8+ as Notes 8.5 is based on Eclipse 3.4.

Configuring and adding menu items in Eclipse V3.3