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| 16:55 |
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shelajev |
hello, people! |
| 16:55 |
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shelajev |
really glad to see you all here :) |
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| 17:01 |
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sjmaple |
hey folks, going live in just a sec |
| 17:02 |
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| 17:03 |
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| 17:04 |
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shelajev |
https://rebellabs.typeform.com/to/yhPzjG |
| 17:04 |
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shelajev |
here's the link to the survey! |
| 17:04 |
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shelajev |
would be awesome if you could take 3 minutes to fill it and share it :) |
| 17:04 |
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shelajev |
thanks! |
| 17:05 |
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| 17:05 |
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Krishna1 |
It was on my machine |
| 17:07 |
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| 17:07 |
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sjmaple |
hey Krishna1 :) |
| 17:08 |
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sjmaple |
my favorite tweet so far for the tool :) |
| 17:08 |
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| 17:11 |
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| 17:12 |
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Krishna1 |
That's great to hear, have suggested this tool to my colleagues results are quire positive 86% and 78% the numbers |
| 17:12 |
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Krishna1 |
78 being lowest and 86 being highest :) |
| 17:12 |
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| 17:13 |
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sjmaple |
wonderful! |
| 17:13 |
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sjmaple |
http://zeroturnaround.com/free/optimizer-for-eclipse is the link if anyone is interested |
| 17:14 |
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jjroman |
Hello Guys |
| 17:14 |
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jjroman |
I also installed this optimizer but I could not find info what class verification is really doing? |
| 17:16 |
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| 17:17 |
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| 17:17 |
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joshuaw |
I always thought "cohesion" in OO was that a single class has a very specific focus |
| 17:17 |
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joshuaw |
not how the interface is designed to work with other classes |
| 17:17 |
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| 17:17 |
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| 17:18 |
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carljokl |
I think so two. Cohesive, has a well defined purpose |
| 17:18 |
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carljokl |
too not two |
| 17:18 |
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joshuaw |
sjmaple: What do you think? |
| 17:19 |
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jjroman |
what is wrong with applying cohesion to interfaces? |
| 17:20 |
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joshuaw |
it is not the common use of cohesion in OO |
| 17:20 |
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| 17:20 |
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joshuaw |
he is claiming that it is |
| 17:21 |
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joshuaw |
coupling has to do with one class relying on another |
| 17:21 |
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joshuaw |
and that fits more with interfaces in my mind |
| 17:21 |
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dansouza |
Hum, but on this architecture you will lose some time performing the lookup, right? |
| 17:21 |
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| 17:22 |
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jjroman |
dansouza lookup is only done once ... then you accessing bundles directly |
| 17:23 |
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dansouza |
Oh, right. Thanks! |
| 17:23 |
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| 17:26 |
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DijitalMunky |
Any one have a link to a description of BND tools? |
| 17:26 |
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jjroman |
http://bndtools.org/ |
| 17:26 |
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DijitalMunky |
Awesome thanks...guess I coulda googled that. |
| 17:27 |
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sjmaple |
it's developed by Neil Bartlett - he's another OSGi rockstar :) |
| 17:28 |
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HarmeetSingh |
@sjmaple lets another vjug meet with @Neil Barlett |
| 17:28 |
|
HarmeetSingh |
: |
| 17:28 |
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HarmeetSingh |
:D |
| 17:29 |
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jjroman |
+1 for Neil |
| 17:29 |
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sjmaple |
:D not had enough OSGi hey? :) |
| 17:29 |
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| 17:29 |
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| 17:29 |
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jjroman |
Should not Score be interface too? |
| 17:29 |
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DijitalMunky |
exit |
| 17:30 |
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| 17:31 |
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| 17:32 |
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| 17:35 |
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| 17:39 |
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| 17:40 |
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| 17:41 |
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| 17:42 |
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| 17:46 |
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| 17:47 |
|
kyu |
hi guys... just got in :( |
| 17:47 |
|
kyu |
hi guys... just got in :( |
| 17:47 |
|
kyu |
hope there'll be a recording as usual ? |
| 17:48 |
|
sjmaple |
yep - already here -> http://virtualjug.com/building-modular-java-applications-in-the-cloud/ |
| 17:49 |
|
kyu |
great thanks |
| 17:49 |
|
jrdalpra |
can we use CDI with OSGi? And JPA? |
| 17:52 |
|
sjmaple |
yeh, it's called blueprint IIRC |
| 17:52 |
|
sjmaple |
Check out enterprise OSGI you get a bunch of the extended services like JPA and DI etc |
| 17:53 |
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sjmaple |
it mixed OSGi and some of the EE style technologies |
| 17:54 |
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jrdalpra |
thanks sjmaple |
| 17:55 |
|
jrdalpra |
don't you guys think that we (java develoeprs) write to much code? |
| 17:55 |
|
jrdalpra |
extends this ... implements thats ... produces some object here |
| 17:56 |
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sjmaple |
like too much syntax/ |
| 17:56 |
|
sjmaple |
? |
| 17:56 |
|
jrdalpra |
no .... like to much classes and methods to build solutions |
| 17:57 |
|
jrdalpra |
I've been thinking about it these days |
| 17:57 |
|
jrdalpra |
Too much code |
| 17:57 |
|
sjmaple |
have you written much functional code? |
| 17:57 |
|
jrdalpra |
Even if we use frameworks |
| 17:58 |
|
jrdalpra |
no |
| 17:58 |
|
ECB |
Yes, lots to have to do, but I think once you get the tasks down, the framework is SOLID |
| 17:58 |
|
ECB |
Brilliant presentation |
| 17:58 |
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jrdalpra |
I'm using the old simple OO |
| 17:58 |
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sjmaple |
functional code tends to result in a lot less of that |
| 17:58 |
|
sjmaple |
people who write OO tend to use objects for all the wrong reasons |
| 17:58 |
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jjroman |
ECB preatty basic thought :( |
| 17:58 |
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jrdalpra |
SOLID .. good ... but results in more code |
| 17:59 |
|
ECB |
jjroman - for a Product Manager like me, a hack, I like it! |
| 17:59 |
|
jrdalpra |
I really enjoy SOLID |
| 18:00 |
|
jrdalpra |
I'm using some clean architecture techniques |
| 18:00 |
|
jrdalpra |
but I still thinks is too much code |
| 18:01 |
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| 18:01 |
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shelajev |
jrdalpra, have you tried Clojure? |
| 18:02 |
|
sjmaple |
I was waiting for shelajev to suggest that :) |
| 18:02 |
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shelajev |
I think you'll like the plain lisp syntax which can be super concise :D |
| 18:02 |
|
shelajev |
you know me well, Simon |
| 18:02 |
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jrdalpra |
I want to write less code ... but it needs to mean something |
| 18:02 |
|
jrdalpra |
:) |
| 18:02 |
|
jrdalpra |
my team needs to understand the code |
| 18:02 |
|
jrdalpra |
:P |
| 18:03 |
|
sjmaple |
with Clojure, all you get are worn out ( ) keys |
| 18:03 |
|
sjmaple |
(losure |
| 18:03 |
|
sjmaple |
(lojure, even |
| 18:04 |
|
jrdalpra |
Write the code is not the problem, write to much code is |
| 18:06 |
|
jrdalpra |
Maybe cobol is the answer :P |
| 18:06 |
|
dansouza |
uuuh, this week I looked at some Cobol code. LOL |
| 18:06 |
|
sjmaple |
a question doesn't exist where Cobol is the answer! |
| 18:07 |
|
shelajev |
sjmaple, What PL job provides the highest average salary? :) |
| 18:08 |
|
shelajev |
what's a good approach to memory leaks in an OSGi app? |
| 18:09 |
|
shelajev |
like if I never restart stuff and one bundle implementation at some point of time was broken |
| 18:09 |
|
sjmaple |
Premier League job? Probably Man City or Chel$ea |
| 18:09 |
|
shelajev |
now it just sits there and consumes resources |
| 18:09 |
|
shelajev |
PL = programming language |
| 18:09 |
|
sjmaple |
:P |
| 18:10 |
|
jrdalpra |
You are not paid for your skills, but for the numbers of professionals with same skills. |
| 18:10 |
|
jrdalpra |
. |
| 18:10 |
|
jrdalpra |
You are not paid for your skills, but for the numbers of professionals with same skills. |
| 18:11 |
|
jrdalpra |
Here in Brazil COBOL pays more than Java |
| 18:11 |
|
dansouza |
I was say the same, jrdalpra |
| 18:11 |
|
jrdalpra |
But there'sThere's a little number of COBOL programmers |
| 18:13 |
|
shelajev |
yep, that's all over the world |
| 18:13 |
|
sjmaple |
Any questions for Bert? |
| 18:13 |
|
jjroman |
How we can unit test bundle in isolation? |
| 18:14 |
|
sjmaple |
great question jjroman |
| 18:14 |
|
jjroman |
Are implementation classes like "SimpleSurveyService" reliably destroyed upon service stop |
| 18:14 |
|
jrdalpra |
How transaction management works in OGSi? |
| 18:15 |
|
jjroman |
What is the best practice to create / stop working threads in implementation bundles |
| 18:18 |
|
shelajev |
+1, how do you do concurrency |
| 18:20 |
|
dansouza |
Can you point some material to start with OSGi? This book that you showed it's a good start? |
| 18:20 |
|
jjroman |
njbartlett.name/files/osgibook_preview_20091217.pdf |
| 18:20 |
|
jjroman |
felix tutorial is good to start too but its broken :( |
| 18:21 |
|
dansouza |
thanks jjroman |
| 18:21 |
|
sjmaple |
Neil also has a great blog |
| 18:23 |
|
incredibleholg |
Thanks and see you next time, guys. Enjoy the evening. |
| 18:24 |
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| 18:28 |
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sjmaple |
Any final questions? |
| 18:29 |
|
sjmaple |
no more bets please, will move to interview next :) |
| 18:31 |
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| 18:32 |
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dansouza |
Thanks, guys! |
| 18:32 |
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| 18:33 |
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sjmaple |
thanks everyone |
| 18:57 |
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| 19:15 |
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| 20:01 |
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