Comments on: On the Rails Again http://www.blog.dannynet.net/archives/30 Pondering Programming and Poetry Fri, 21 Nov 2008 22:59:05 +0000 http://wordpress.org/?v=2.6.3 By: Stephan Janssen http://www.blog.dannynet.net/archives/30#comment-233 Stephan Janssen Mon, 06 Feb 2006 22:03:28 +0000 http://www.blog.dannynet.net/?p=30#comment-233 The online keynote from Graham Hamilton is now online @ http://www.javapolis.com ... enjoy :) The online keynote from Graham Hamilton is now online @ http://www.javapolis.com … enjoy :)

]]> By: Danny’s Blog » Blog Archive » Final Thoughts on JavaPolis 2005, Part 2: Is JavaPolis the European JavaOne? http://www.blog.dannynet.net/archives/30#comment-104 Danny’s Blog » Blog Archive » Final Thoughts on JavaPolis 2005, Part 2: Is JavaPolis the European JavaOne? Wed, 18 Jan 2006 05:51:05 +0000 http://www.blog.dannynet.net/?p=30#comment-104 [...] In Thursday’s keynote, JavaPolis founder Stephan Janssen asked whether JavaPolis should grow even bigger, and because of that, move to a bigger location. According to the official site this year over 2100 people attended the conference. I don’t think there’s a clear answer to Stephan’s question. JavaPolis had a very friendly, cosy atmosphere; I never had the feeling there were 2100 people around. All the stands were well accessible, there was always a seat left even in the most popular sessions. Maybe 2100 is just right. On the other hand, if JavaPolis really wants to be ‘the European JavaOne’ (as I’ve heard people say more than once) I think it’s not nearly big enough. I would expect much more sessions, high-quality sessions even on Friday (see below), more big names in the speakers department and a bigger exposition room with more companies and bigger stands. I wouldn’t mind paying a little more either if it were that big. Friday, the final day of JavaPolis, was a bit of a letdown. The exposition room was being cleared, the buzz and the excitement were gone, we were just a bunch of stray people in the three remaining conference rooms. I saw two interesting presentations: * Web service architecture, highlighted some best practices in designing _and_ maintaining web services, like: ** “Keep your XML schemas simple, because not all implementations implement all schema features the same way”; ** “Favour a coarse grained web service definition, because of the high cost per call”; ** “ESB allows you to use existing components (EJBs) as if you have a SOA; usefull for a transition to SOA but it won’t take you all the way”. * Zero-calories J2EE: about a Danish company’s (Nordija) research into setting up a standard framework using Spring, Hibernate and Tapestry. I couldn’t agree with all their advise, like using domain classes containing business logic instead of data transfer objects to communicatie with the web tier; or identifying objects not by their database id field (because that’s empty until you’ve committed) but by some other identifying attribute or combination of attributes; by the way, Martin Fowler has an extensive discussion of this seemingly simple matter of identity fields which is worth reading. But I appreciated them showing that photo! [...] [...] In Thursday’s keynote, JavaPolis founder Stephan Janssen asked whether JavaPolis should grow even bigger, and because of that, move to a bigger location. According to the official site this year over 2100 people attended the conference. I don’t think there’s a clear answer to Stephan’s question. JavaPolis had a very friendly, cosy atmosphere; I never had the feeling there were 2100 people around. All the stands were well accessible, there was always a seat left even in the most popular sessions. Maybe 2100 is just right. On the other hand, if JavaPolis really wants to be ‘the European JavaOne’ (as I’ve heard people say more than once) I think it’s not nearly big enough. I would expect much more sessions, high-quality sessions even on Friday (see below), more big names in the speakers department and a bigger exposition room with more companies and bigger stands. I wouldn’t mind paying a little more either if it were that big. Friday, the final day of JavaPolis, was a bit of a letdown. The exposition room was being cleared, the buzz and the excitement were gone, we were just a bunch of stray people in the three remaining conference rooms. I saw two interesting presentations: * Web service architecture, highlighted some best practices in designing _and_ maintaining web services, like: ** “Keep your XML schemas simple, because not all implementations implement all schema features the same way”; ** “Favour a coarse grained web service definition, because of the high cost per call”; ** “ESB allows you to use existing components (EJBs) as if you have a SOA; usefull for a transition to SOA but it won’t take you all the way”. * Zero-calories J2EE: about a Danish company’s (Nordija) research into setting up a standard framework using Spring, Hibernate and Tapestry. I couldn’t agree with all their advise, like using domain classes containing business logic instead of data transfer objects to communicatie with the web tier; or identifying objects not by their database id field (because that’s empty until you’ve committed) but by some other identifying attribute or combination of attributes; by the way, Martin Fowler has an extensive discussion of this seemingly simple matter of identity fields which is worth reading. But I appreciated them showing that photo! [...]

]]> By: Thomas Huusom Christensen http://www.blog.dannynet.net/archives/30#comment-23 Thomas Huusom Christensen Mon, 19 Dec 2005 07:54:09 +0000 http://www.blog.dannynet.net/?p=30#comment-23 Yes, credit for the excellent photo goes to Garbett. It points out all too clearly that we in Java land either how a long way still to go or are backing up the wrong tree. Cheers Thomas Yes, credit for the excellent photo goes to Garbett. It points out all too clearly that we in Java land either how a long way still to go or are backing up the wrong tree.
Cheers
Thomas

]]> By: Danny http://www.blog.dannynet.net/archives/30#comment-21 Danny Sat, 17 Dec 2005 15:51:22 +0000 http://www.blog.dannynet.net/?p=30#comment-21 Gary, Method parameters is when you can send a reference to one method as a parameter to another method. The second method can then call the first method, without knowing beforehand which method that is. In C and Delphi you could do this by passing a pointer (memory address) to the method. In Java we don't have pointers, so there would have to be some way to reference a method. I'm not sure how this is done in Ruby, by the way (<a href="http://www.blog.dannynet.net/archives/21">should have bought</a> the language book ;-)). It's possible to pass a block of code to a method (see <a href="http://www.rubycentral.com/book/tut_methods.html#UB">Programming Ruby</a>), and that block could contain a method call; but that's not quite the same as a method reference, in my book. But don't ask me, I'm a beginner with Ruby. Any of the experts know more about this? Gary,
Method parameters is when you can send a reference to one method as a parameter to another method. The second method can then call the first method, without knowing beforehand which method that is. In C and Delphi you could do this by passing a pointer (memory address) to the method. In Java we don’t have pointers, so there would have to be some way to reference a method.
I’m not sure how this is done in Ruby, by the way (should have bought the language book ;-)). It’s possible to pass a block of code to a method (see Programming Ruby), and that block could contain a method call; but that’s not quite the same as a method reference, in my book. But don’t ask me, I’m a beginner with Ruby. Any of the experts know more about this?

]]> By: Semergence » On the Rails Again http://www.blog.dannynet.net/archives/30#comment-20 Semergence » On the Rails Again Sat, 17 Dec 2005 09:18:08 +0000 http://www.blog.dannynet.net/?p=30#comment-20 [...] Danny’s Blog has some good perspectives from a Java guy who just went to JavaPolis, but who is also On the Rails Again. He did pick up on a general meme of EoD: [...] [...] Danny’s Blog has some good perspectives from a Java guy who just went to JavaPolis, but who is also On the Rails Again. He did pick up on a general meme of EoD: [...]

]]> By: Gary Blomquist http://www.blog.dannynet.net/archives/30#comment-19 Gary Blomquist Sat, 17 Dec 2005 08:43:02 +0000 http://www.blog.dannynet.net/?p=30#comment-19 What are 'Method Parameters'? What are ‘Method Parameters’?

]]> By: Rick Bradley http://www.blog.dannynet.net/archives/30#comment-18 Rick Bradley Sat, 17 Dec 2005 07:21:57 +0000 http://www.blog.dannynet.net/?p=30#comment-18 Danny, The picture you're looking for can be found at http://www.garbett.org/?q=node/25 . My coworker, Shawn Garbett took that photo when we finalized our decision to move from Java to Ruby on Rails for our so-called "enterprise" project. If anyone wants to buy some Java books, cheap, drop him a line. Best, Rick Danny,
The picture you’re looking for can be found at http://www.garbett.org/?q=node/25 . My coworker, Shawn Garbett took that photo when we finalized our decision to move from Java to Ruby on Rails for our so-called “enterprise” project. If anyone wants to buy some Java books, cheap, drop him a line.

Best,
Rick

]]> By: Obie Fernandez http://www.blog.dannynet.net/archives/30#comment-17 Obie Fernandez Sat, 17 Dec 2005 06:15:08 +0000 http://www.blog.dannynet.net/?p=30#comment-17 Thanks for the update. Glad to know there is progress in Java-land. Thanks for the update. Glad to know there is progress in Java-land.

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