Archive for the ‘user group’ Category
Australian User Groups
http://www.builderau.com.au/usergroup/. Have been attending few Adobe UG meetings, maybe it’s time to have a look at the Java one.
Flex Profiling
Yesterday, David Keutgens from Cynergy Systems presented Profiling in Flex for our Sydney Adobe Platform User Group. Although not a real Flex programmer myself, I found the presentation quite informative and enjoyable.
The topic also brings back my memory of my undergraduate final year where I almost did a thesis on Java profiling myself, which I didn’t end up doing because it was too hard for me.
Couple of things that I got out of the meeting (again bare in mind I am not a Flex programmer, so there might be inaccuracies below):
- In Flex you can profile 2 things: Memory or Performance.
- Need to be careful in cleaning up references to objects, otherwise the Garbage Collector won’t clean them.
- Use weak reference as much as possible, two ways of specifying weak reference:
- Dictionary class
- addListener
- When profiling look at objects that are called often or object that has long execution time.
Memorable comment on the night:
Q: What do you call a class that implements Dictionary but always use weak reference by default?
A: Wikipedia
LOL, attributed to Robin Hilliard of Rocketboots.
1st CFUG
Tonight was my first time coming to CFUG, well it’s now called Adobe Platform Users Group (APUG) as NSW CFUG and the Flash User Group merged together. Managed to get one workmate to join, he’s a CF enthusiast and has been to these meetings before. But rather unfortunatelly the other 6 weren’t interested, how can I get these people interested in being involved in CF community I wonder…
Also managed to caught up with 2 mates from the old workplace which is good.
Geoff from Daemon gave a presentation on open source community, he gave tips on what can developers do to help out the community (things like: submitting bug reports, feature requests, contributing financially etc2). He also shared a bit his experience with FarCry of which he is the benevolent dictator.
He also explained some of the open source licences, he brought into our attention the difference between GPL and LGPL and gave an example of the current controversy on ExtJS community caused by moving the library from LGPL to GPL (a controversy that I wasn’t aware of, wonder why I haven’t seen it blogged on CF or Flex blogs).
It was an informative session, I am glad that I came.
