http://www.antoniogoncalves.org Personal Wiki Blog en Raffaello Pelagalli Raffaello Pelagalli http://www.antoniogoncalves.org http://www.antoniogoncalves.org/xwiki/skins/albatross/logo.png http://www.antoniogoncalves.org/xwiki/bin/view/Blog/TemplateWithTemplatesInGroovy?language=en I need to use templates to generate all sorts of things (java classes, xml and property files...), I have enough of <span class="wikiexternallink"><a href="http://velocity.apache.org/">Velocity</a></span> and I love <span class="wikiexternallink"><a href="http://groovy.codehaus.org/">Groovy</a></span>. Three good reasons to use <span class="wikiexternallink"><a href="http://groovy.codehaus.org/Groovy+Templates">Groovy <a href="http://www.antoniogoncalves.org/xwiki/bin/view/Blog/TemplateWithTemplatesInGroovy?language=en">...</a> Groovy 2008-10-17T11:09:05+02:00 Antonio Goncalves Antonio Goncalves http://www.antoniogoncalves.org/xwiki/bin/view/Blog/BackFromTheTSSSymposiumInPrague?language=en <p>Last Wednesday I‘ve landed at noon in Prague, quickly took a taxi, arrived at the <a href="http://www.cchp.cz" title="">Clarion Congress Hotel</a> where the conference well held, registered, went to my room and had a quick last look at my slides.</p><p/> <img src="/xwiki/bin/download/Blog/BackFromTheTSSSymposiumInPrague/2008tss1.jpg" alt="2008tss1.jpg" title="2008tss1.jpg"/><p/> <p>At 3:50pm I <a href="http://www.antoniogoncalves.org/xwiki/bin/view/Blog/BackFromTheTSSSymposiumInPrague?language=en">...</a> Java 2008-07-31T01:50:19+02:00 Antonio Goncalves Antonio Goncalves http://www.antoniogoncalves.org/xwiki/bin/view/Blog/PrimaryAndSecondaryTableWithJPA?language=en <p>It‘s the third time I‘ve been asked if in <span class="caps">JPA</span> you can persist the attributes of your entity in several tables. The answer is yes. It has a performance impact (each simple query will use joins) but it can be very helpful when you need to map your objects into an existing database.</p><p/> <p>Here is an example of an Address entity that persist its data into a primary table <a href="http://www.antoniogoncalves.org/xwiki/bin/view/Blog/PrimaryAndSecondaryTableWithJPA?language=en">...</a> Java 2008-07-31T11:54:48+02:00 Antonio Goncalves Antonio Goncalves http://www.antoniogoncalves.org/xwiki/bin/view/Blog/SpeakingAtTheTSSSymposium?language=en <p>Soon (18–20 June) starts the <a href="http://javasymposium.techtarget.com/europe/index.html" title="">TSS Symposium</a> conference in Prague. A great conference with good speakers in a beautiful city. Well, this time I‘ll be speaking there. In fact, I‘ll be giving two talks :</p><p/> <img src="/xwiki/bin/download/Blog/SpeakingAtTheTSSSymposium/ImSpeakingatTSSJS.gif" alt="ImSpeakingatTSSJS.gif" title="ImSpeakingatTSSJS.gif"/><p/> <p><a <a href="http://www.antoniogoncalves.org/xwiki/bin/view/Blog/SpeakingAtTheTSSSymposium?language=en">...</a> Java 2008-07-31T11:44:50+02:00 Antonio Goncalves Antonio Goncalves http://www.antoniogoncalves.org/xwiki/bin/view/Blog/AVirusAtJavaOne?language=en <p>Today I only attended two presentations and had to leave the conference for some rest. I wonder if I‘m just exhausted about too much JavaOne, or if I‘ve got a virus. This is the email that we received this morning :</p><p/> <p><strong>URGENT PUBLIC HEALTH ADVISORY FROM JAVAONE TEAM</strong></p><p/> <p>The JavaOne conference team has been notified by the San Francisco Department of Public Health <a href="http://www.antoniogoncalves.org/xwiki/bin/view/Blog/AVirusAtJavaOne?language=en">...</a> Java 2008-07-31T11:42:30+02:00 Antonio Goncalves Antonio Goncalves http://www.antoniogoncalves.org/xwiki/bin/view/Blog/JavaOneANostalgicPortugueseTouch?language=en <p>It is my first JavaOne, so I can‘t really compare. But something tells me that 5 years ago JavaOne was about… Java. Today, it feels different. There are plenty of technical sessions about other languages and on the <a href="http://www.adam-bien.com/roller/abien/entry/the_top_selling_books_at" title="">top selling books</a> at JavaOne, three are about other languages (Groovy and JavaFX). Even James <a href="http://www.antoniogoncalves.org/xwiki/bin/view/Blog/JavaOneANostalgicPortugueseTouch?language=en">...</a> Java 2008-07-31T11:40:59+02:00 Antonio Goncalves Antonio Goncalves http://www.antoniogoncalves.org/xwiki/bin/view/Blog/JavaOneOpeningUpTheJCP?language=en <p>Today was an interesting day at JavaOne. I first started meeting a giant Duke in the busy corridors of the <a href="http://www.moscone.com" title="">Moscone Center</a><br><p/> <img src="/xwiki/bin/download/Blog/JavaOneOpeningUpTheJCP/2008sf10.jpg" alt="2008sf10.jpg" title="2008sf10.jpg"/><p/> <p>Then I met Aaron Houston (the Sun guy who helps the JUGs around the world) who gave the <a href="http://www.parisjug.org" <a href="http://www.antoniogoncalves.org/xwiki/bin/view/Blog/JavaOneOpeningUpTheJCP?language=en">...</a> Java 2008-07-31T11:37:37+02:00 Antonio Goncalves Antonio Goncalves http://www.antoniogoncalves.org/xwiki/bin/view/Blog/JavaOneMyTop3Issues?language=en <p>Today it was JavaOne‘s kick off. It started with a keynote with Rich Green. It was concentrated in mobile devices (Amazon presented its <a href="http://www.amazon.com/Kindle-Amazons-Wireless-Reading-Device/dp/B000FI73MA" title="">Kindle eBook</a>) and, of course, JavaFX took a big place. I‘m still a bit sceptical about JavaFX but Rich Green said that really soon it will be running everywhere, in <a href="http://www.antoniogoncalves.org/xwiki/bin/view/Blog/JavaOneMyTop3Issues?language=en">...</a> Java 2008-07-31T11:30:29+02:00 Antonio Goncalves Antonio Goncalves http://www.antoniogoncalves.org/xwiki/bin/view/Blog/CommunityOne?language=en <p>Today was the <a href="http://developers.sun.com/events/communityone/" title="">Community One</a>. Not exactly JavaOne yet, free of charge, and mostly based on communities. The idea is to bring different communities on board such as JUGs, GlassFish, Open Solaris, Linux, NetBeans and so on.</p><p/> <p>Community One is also based at the <a href="http://www.moscone.com/" title="">Moscone Center</a> <a href="http://www.antoniogoncalves.org/xwiki/bin/view/Blog/CommunityOne?language=en">...</a> Java 2008-07-31T11:26:49+02:00 Antonio Goncalves Antonio Goncalves http://www.antoniogoncalves.org/xwiki/bin/view/Blog/FromTheGoldenGateToGlassFish?language=en <p>Yesterday morning I met <a href="http://blogs.sun.com/alexismp/" title="">Alexis Moussine Pouchkine</a> near the Peer 45 in San Francisco. He had organized a bike tour before the GlassFish unconferences. We were a group of 10 people, ready to cycle through the <strong>Golden Gate</strong> bridge. Met at 9:30am, had a coffee, put the helmet on and off we went. The weather wasn‘t very clear and it <a href="http://www.antoniogoncalves.org/xwiki/bin/view/Blog/FromTheGoldenGateToGlassFish?language=en">...</a> Java 2008-07-31T11:15:07+02:00 Antonio Goncalves Antonio Goncalves http://www.antoniogoncalves.org/xwiki/bin/view/Blog/SpeakingAtJavaOne?language=en <p>As a <em>young JUG Leader</em> I’ve been invited by Sun to <strong>JavaOne</strong> (thanks to Aaron Houston). It‘s my first time at JavaOne so I‘m very excited to attend conferences, BOFs and plenty of organized diners or unconferences. It‘s going to be a busy week, but I‘m ready (I arrived yesterday in San Francisco and already had a good night sleep to recover the 12 hours flight and 9 hours <a href="http://www.antoniogoncalves.org/xwiki/bin/view/Blog/SpeakingAtJavaOne?language=en">...</a> Java 2008-07-31T10:56:53+02:00 Antonio Goncalves Antonio Goncalves http://www.antoniogoncalves.org/xwiki/bin/view/Blog/EnglishReviewOfAJavaEE5FrenchBook?language=en <p><p>French libraries are full of English books. French blogs are full of comments on English books. Technical French website are full of reviews of English books. But the opposite is not true and doesn‘t happen very often, that‘s why I‘m mentioning it.</p><p/> <p>Few months ago I‘ve been contacted by <a href="http://meera-subbarao.blogspot.com" title="">Meera Subbarao</a> who is the team leader <a href="http://www.antoniogoncalves.org/xwiki/bin/view/Blog/EnglishReviewOfAJavaEE5FrenchBook?language=en">...</a> Java 2008-07-31T10:55:43+02:00 Antonio Goncalves Antonio Goncalves http://www.antoniogoncalves.org/xwiki/bin/view/Blog/GoogleGearsInAction?language=en <p><a href="http://gears.google.com/" title="">Google Gears</a> is an open source browser extension that enables web applications to provide offline functionality. For those of you who, like me, haven’t played with the API, there is an easy way to just use it and see it in action : <a href="http://www.google.com/reader" title="">Google Reader</a>. If you use Google Reader to read your feeds and want <a href="http://www.antoniogoncalves.org/xwiki/bin/view/Blog/GoogleGearsInAction?language=en">...</a> Java 2008-07-31T10:50:06+02:00 Antonio Goncalves Antonio Goncalves http://www.antoniogoncalves.org/xwiki/bin/view/Blog/BackFromQCon?language=en <p>Second conference in London in less that 6 months (<a href="http://www.grails-exchange.com/" title="">Grails Exchange</a> in October). It‘s always good to be back in London (where I lived for 2 years) except for public transport (Circle Line wasn‘t working on Thursday… again). The conference is held at the Queen Elisabeth just facing the Westminster Abbey. Very nice to look at during the breaks.</p><p/> <img <a href="http://www.antoniogoncalves.org/xwiki/bin/view/Blog/BackFromQCon?language=en">...</a> Java 2008-07-30T05:21:28+02:00 Antonio Goncalves Antonio Goncalves http://www.antoniogoncalves.org/xwiki/bin/view/Blog/TalkingAtQConInLondon?language=en <p>Thursday the 13th of March I‘ll be talking at the <a href="http://qcon.infoq.com/london/conference/" title="">QCon in London</a>. The title of this BoF is <a href="http://qcon.editme.com/JCP" title="">Insider’s tips for developing a successful API for Java</a>. I’ll be around the table with Werner Keil (Spec lead of JSR 275 - Units Specification), <a href="http://qcon.infoq.com/london/speaker/Rod+Johnson" <a href="http://www.antoniogoncalves.org/xwiki/bin/view/Blog/TalkingAtQConInLondon?language=en">...</a> Java 2008-07-30T05:16:58+02:00 Antonio Goncalves Antonio Goncalves http://www.antoniogoncalves.org/xwiki/bin/view/Blog/ParisJUGInauguration?language=en <p>Everything you want to know about the <a href="http://www.parisjug.org/blog.html" title="">inauguration of the Paris JUG</a>.</p> Java 2008-07-30T05:14:47+02:00 Antonio Goncalves Antonio Goncalves http://www.antoniogoncalves.org/xwiki/bin/view/Blog/WhyAreWeNotUsingJavaEE5BisRepetita?language=en <p>A few days ago I‘ve blogged about <a href="http://www.jroller.com/agoncal/entry/why_are_we_not_using" title="">Why are we not using Java EE 5</a>? This post had a few <a href="http://www.jroller.com/agoncal/entry/why_are_we_not_using#comments" title="">comments</a>. I’ve then been contacted by Matthew Schmidt from <a href="http://java.dzone.com/" title="">DZone</a> asking me if they could reproduce <a href="http://www.antoniogoncalves.org/xwiki/bin/view/Blog/WhyAreWeNotUsingJavaEE5BisRepetita?language=en">...</a> Java 2008-07-30T05:13:43+02:00 Antonio Goncalves Antonio Goncalves http://www.antoniogoncalves.org/xwiki/bin/view/Blog/WhyAreWeNotUsingJavaEE5?language=en <p>Believe it or not, in a few months the <a href="http://www.jcp.org/en/jsr/detail?id=244" title="">Java EE 5</a> specification will be two years old (Final Release on the 11 May, 2006). <strong>And nobody is using it</strong>.</p><p/> <p>We have all read about how <strong>easier</strong> the development model is in Java <span class="caps">EE 5</span> compared to <span class="caps">J2EE 1</span>.4. <a href="http://www.antoniogoncalves.org/xwiki/bin/view/Blog/WhyAreWeNotUsingJavaEE5?language=en">...</a> Java 2008-07-30T05:12:18+02:00 Antonio Goncalves Antonio Goncalves http://www.antoniogoncalves.org/xwiki/bin/view/Blog/JavaEE5BookUsedInUniversities?language=en <p>I‘ve been teaching Java EE at a Parisian university (<a href="www.cnam.fr" title="">Cnam</a>) for 6 years now. When I decided to write a book about <a href="http://www.antoniogoncalves.org/xwiki/bin/view/Book/JavaEE5" title="">Java EE 5</a>, I took some inspiration from what I was doing at university. Thanks to these 6 years, I‘ve developed pedagogic skills in the way of teaching Java EE. That‘s <a href="http://www.antoniogoncalves.org/xwiki/bin/view/Blog/JavaEE5BookUsedInUniversities?language=en">...</a> Java 2008-07-30T05:10:57+02:00 Antonio Goncalves Antonio Goncalves http://www.antoniogoncalves.org/xwiki/bin/view/Blog/TheCityOfParisInterestedInTheParisJUG?language=en <p>Last week I met <a href="http://www.jroller.com/agoncal/entry/my_new_best_friend_from" title="">James Gosling</a>, today I met the Mayor of Paris‘ 11th district.</p><p/> <p>Everybody has their own political opinions and views on social policy and the workplace. I have mine too. I‘m passionate about Java, I like sharing my knowledge and creating networks, and of course making some money… but in <a href="http://www.antoniogoncalves.org/xwiki/bin/view/Blog/TheCityOfParisInterestedInTheParisJUG?language=en">...</a> Java 2008-07-30T01:47:23+02:00 Antonio Goncalves Antonio Goncalves