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• Moving from a traditional in memory Java session to persistent storage sessions

  - by Benju

  We have decided to take the plunge and move from using a typical java session provider in Tomcat/Jetty/etc to persisting everything to a central datastore. We are looking at using MongoDB for this. A few options come to mind... http://wiki.eclipse.org/Jetty/Tutorial/MongoDB_Session_Clustering This is nice because it will "auto-magically" persist our session to a Mongo installation. I am concerned however that we will not have fine grained control of what is happening. https://github.com/mattinsler/com.lowereast.guiceymongo/ GuiceMongo is interesting as it integrates with Guice. Perhaps we could persist everything via this ORM. Has anybody had to deal with this kind of move? It seems that moving from in memory to persistent session storage has a lot of gotchas.

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• Surfer depuis un ordinateur de bureau est dépassé selon Netgear, qui présente des solutions tournées vers le sans-fil

  Surfer depuis un ordinateur de bureau est dépassé selon Netgear, qui présente des solutions tournées vers le sans-fil Pour Netgear, le temps des connexions via un ordinateur de bureau est révolu. Et la firme va adapter ses produits en conséquence : "Auparavant, on connectait surtout des PCs, désormais on équipe en premier lieu des appareils mobiles. Les besoins techniques sont totalement différents". Le CES de cette semaine à Las Vegas a donc été l'occasion de présenter divers nouveaux produits (8) répondant à cette transformation du marché, où le réseau domestique ne tourne plus autour de l'ordinateur principal. De ce fait, Netgear propose des outils permettant de délivrer des flux Haute-Definition à diffé...

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• Internet Explorer 9 : Microsoft répond aux critiques de Mozilla avec un argumentaire sur ce qu'est un « navigateur moderne »

  IE9 : Microsoft répond aux critiques de Mozilla Avec un argumentaire en 4 points sur ce qu'est un « navigateur moderne » Mise à jour du 17/02/11 Après les critiques de Paul Rouget, développeur français chez Mozilla, qui accusait Microsoft d'avoir « deux ans de retard sur la concurrence » (lire ci-avant), Tim Sneath de Microsoft vient de publier un billet dans lequel il liste ce que, d'après lui, les développeurs et les utilisateurs attendent d'un navigateur dit « moderne ». Et chaque point ressemble fort à un pic contre Firefox. Pour lui, un navigateur moderne est « rapide ». Il permet par ailleurs une «...

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• Bridging the gap between learning language fundamentals and actually making useful software?

  - by Anonymous -

  I'm learning C# via the "Essential C#" Lynda.com video tutorials and plan to read a couple of books that cover things in more depth afterwards. My question is where I should head to learn more after that? I've done things like project Euler in the past, but I find they don't really help me learn anything other than basic program control flow and features. I've looked at many open-source projects but pretty much everything still looks overwhelmingly complicated at this stage. What would you recommend I look at to help me build useful applications that are a bit beyond the millions of console applications I must've written thus-far? Should I be looking at books specifically on learning/working with the .NET framework, or just biting my lip and continue working through open source projects until they start to make sense?

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• Révisions : Microsoft met en ligne ses cahiers de pré-rentrée sur Visual Studio 2012, Windows Phone, Windows 8, Azure et Windows Server 2012

  Révision de pré-rentrée : Microsoft a mis en ligne ses cahiers de vacances Sur Visual Studio 2012, Windows Phone, Windows 8, Azure et Windows Server Mea Culpa. Nous aurions pu en parler avant. Mais mieux vaut tard que jamais. D'autant plus que les révisions, c'est bien aussi quand ça ne dure pas toutes les vacances. Quoiqu'il en soit, Microsoft a mis en ligne deux « Cahiers de vacances » pour faire le point, se tester et/ou apprendre à maitrise toutes les nouveautés (et Dieu sait qu'elles sont nombreuses) autour de ses produits. Le premier, « J'en ai rien à déployer », revient sur la RC de Windows Server 2012, et sur la virtualisation av...

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• Ubuntu Server 11.10 AMD64: Installation of graphical desktop changes kernel!?

  - by MindGap

  I've a Ubuntu Server 11.10 amd64 installation that needed a graphical desktop to execute some visual apps. While searching for the correct way to achive this, I noticed that there was a lot of people saying that invoquing the gnome desktop installation (apt-get install ubuntu-desktop) would switch from server to desktop kernel. Is this true!? I've checked and the kernel seems to remain unchanged after the install. I need to be sure of this because the desktop flavoured kernel doesn't seem to support the ServeRaid 8K controller sitting on my IBM server and I have no ideia on how to enable support for it. (I'll be grateful if someone could point me a good guide on how to install ubuntu when the storage controller is not detected) Any comment on this matter will be greatly appreciated! Good linuxing!

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• Is there any complications or side effects for changing final field access/visibility modifier from private to protected?

  - by Software Engeneering Learner

  I have a private final field in one class and then I want to address that field in a subclass. I want to change field access/visibility modifier from private to protected, so I don't have to call getField() method from subclass and I can instead address that field directly (which is more clear and cohessive). Will there be any side effects or complications if I change private to protected for a final field? UPDATE: from logical point of view, it's obvious that descendant should be able to directly access all predecessor fields, right? But there are certain constraints that are imposed on private final fields by JVM, like 100% initialization guarantee after construction phase(useful for concurrency) and so on. So I would like to know, by changing from private to protected, won't that or any other constraints be compromised?

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• Flowmotion Running on Ubuntu Server [migrated]

  - by Thomas Egan

  I am trying to configure Flowmotion to work on my Ubuntu Server. At present I use LAMP to serve pages from a Virtualbox installation. I will be moving this to a dedicated server but would like to enable true streaming of videos using this installation. I am only interested in open source streaming for a research project and although I have installed Flowmotion via apt-get I don't know how to start the service so that embedded videos located on the server will stream. Can anybody provide any information regarding this or online resources I may have missed? I have checked the documentation however if appears far too complex. Just clarify I'm running VirtualBox 4.2.1 on Mac OSX 10.6.8 and Ubuntu Server 12.06 64-bit

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• Sign E-Business Suite JAR Files Now

  - by Steven Chan (Oracle Development)

  Oracle E-Business Suite uses Java, notably for running Forms-based content via the Java Runtime Environment (JRE) browser plug-in.  The default security settings for the JRE plug-in are expected to become more stringent over time.  To prepare for upcoming changes to Java security, all EBS 11i, 12.0, 12.1, and 12.2 system administrators must follow the procedures documented here: Enhanced Signing of Oracle E-Business Suite JAR Files (Note 1591073.1 ) More information about Java security is available here: Security of the Java Platform Getting help If you have questions about Java Security, please log a Service Request with Java Support. If you need assistance with the steps for signing EBS JAR files, please log a Service Request against the "Oracle Applications Technology Stack (TXK)" > "Java."

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• One man software developer product success stories? [on hold]

  - by EugeneKr

  I've got a bad feeling that this question is not appropriate here.. Hopefully you can point me to the right place to ask such a thing (not google though, been there). I want to create my own product, but for some reason have no ideas, so decided to see what people have already done. I would like to start by myself too. I don't mind expanding, but at later stages when it is absolutely necessary. Anyway, to give you an example. There is a guy who created bingo card generation software, then somebody made a wedding planner software and they seem to be doing pretty fine. I would like to know more such cases to draw inspiration from. Do you know such people or maybe you are one of them? Also, if there are places on the net where they dwell, don't hesitate to tell me :) Thanks!

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• Easiest Way to Get Started With 3D?

  - by ryebread761

  I'm looking at getting into 3D game development and am wondering what would be the best, quickest engine to get started with. I need to be able to develop on a Macintosh with it. I know Java, and PHP mainly but have worked in many others. At this point, I feel I can adapt to most languages quite easy. So the programming language doesn't really matter to me. I've sorta kinda tried unity in the past and wasn't all too fond of it, so it's kind of a "I can't find anything better" resort. I'm hoping with how open I am I will find something I like more. Thanks in advance.

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• Quel est le bug le plus récalcitrant que vous ayez rencontré ? Improbable ou impossible à reproduire, racontez-nous tout

  Quel est le bug le plus récalcitrant que vous ayez rencontré ? Improbable ou impossible à reproduire, racontez-nous votre meilleure histoire de débogage Si le débogage est l'art d'enlever les bogues, la programmation doit être l'art de les créer. Une expression chère à beaucoup de développeurs qui souligne à quel point le débogage d'une application peut être important et... problématique. C'est ce que relate Patrick Thomson, un développeur blogueur qui raconte ce qu'il qualifie de "meilleure histoire de débogage qu'il ait jamais entendue". Il s'agit d'une mésaventure vécue dans les année 80 par le père de l'auteur, avec un ordinateur ancestrale ut...

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• Ubuntu One Music - 'Unable to Parse '2006-12-12T08:00:00Z' as integer (iTunes Non-DRM AAC)

  - by Scott

  Good Morning; Title says most of it, uploaded a new song to my U1 Music (via my Android using the Files app). Which is an recently purchased iTunes .m4a song, so is non-DRM AAC. Uploaded fine, and browsing in U1 Music I see artist "Spray" fine, and then the Album, but attempting to open the Album to the song, returns: "'Unable to Parse '2006-12-12T08:00:00Z' as integer" Not sure if it's a problem with the file itself, or just how Android uploaded the file, as that is clearly a weird date code. All my other music is fine, no errors, and the service works awesome. My U1 account is under the e-mail address used for this question. Thanks!

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• Chameleon effect not working after update

  - by Roshnal

  I've been using Ubuntu 12.04 since it came out and so far didn't have any problems with it. But after I updated (via Update Manager) it yesterday, after every reboot, the launcher color defaults to a blue dash, workspace and trash icon and the rest is black. If I set the wallpaper again manually, then it changes color as its supposed to (chameleon). Any idea why this is? Its really annoying to change your wallpaper every time you logon just to get the "normal" launcher. EDIT The chameleon effect works perfectly for notifications. Only the Launcher and Dash are not changing the color. Thanks.

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• Blocked Sites at work (that aren't even bad)

  - by Mercfh

  So here recently, i've been using google to look up information for basically random programming things (i was just hired on a month or so ago). So here recently I was actually looking up some information about RAW_SOCKETS (but thats beside the point) Anyways some of the tutorials sites/explaining how to use them and explaining the protocol sites are actually blocked. (and our manager sent out an email saying that if u run into a site just to email her just in case). Now obviously...w/e sys admins probably see these 'blocked' sites in their reports. But should I be worried? I mean....I literally am not trying to be devious Im just trying to learn stuff. I guess programming websites are sometimes labeled as "hacking". sometimes blogs get labeled like that, but alot of the time blogs have USEFUL information. This apparently happens alot of my other co-workers and they don't even bother emailing our manager.....but should I be worried? Or has this happened to you guys before?

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• Top Down bounds of vision

  - by Rorrik

  Obviously in a first person view point the player sees only what's in front of them (with the exception of radars and rearview mirrors, etc). My game has a top down perspective, but I still want to limit what the character sees based on their facing. I've already worked out having objects obstruct vision, but there are two other factors that I worry would be disorienting and want to do right. I want the player to have reduced peripheral vision and very little view behind them. The assumption is he can turn his head and so see fairly well out to the sides, but hardly at all behind without turning the whole body. How do I make it clear you are not seeing behind you? I want the map to turn so the player is always facing up. Part of the game is to experience kind of a maze and the player should be able to lose track of North. How can I turn the map rather than the player avatar without causing confusion?

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• Login and redirect to user home page [migrated]

  - by Rich

  The problem I can't currently solve is when a user logs in. They arrive at the site (index.php) and enter username and password, which gets submitted via a Post form back to index.php - if there are incorrect details then they get an error message. But if successful then I would like them to be taken to their user home page - but I can't do this! I am left presenting them with a link to the home page, which is more than a little clunky. Seems there must be an obviously solution - never seen a site before that didn't redirect! Not sure is the answer is PHp, HTML, or Javascript.

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• OpenGL: Drawing to a texture

  - by Danran

  Well im just a bit stuck wondering how to draw an item to a texture. Specifically, i'm using; glDrawArrays(GL_LINE_STRIP, indices[0], indices.size()); Because what i'm drawing via the above function updates every-frame, i'm just totally not sure how to go about drawing what i have to a texture. Any help is greatly appreciated! Edit: Well unfortunately my graphics card doesn't support FrameBuffer Objects :/. So i've been trying to get the copy contents from backbuffer method working. Here's what i currently have; http://pastebin.com/dJpPt6Pd And sadly all i get is a white square. Its probably something stupid that i'm doing wrong. Just unsure what it could be?

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• Does an inventory limit in an MMORPG make sense?

  - by Philipp

  I am currently developing a simple 2d MMORPG. My current focus is the inventory system. I am currently wondering if I should implement a limit on what a player character can carry. Either in form of a maximum weight, a limited number of inventory slots, or a combination of both. Almost every MMORPG I ever played limits inventory space. But plausibility aside, is this really necessary from a gameplay point of view? Maybe it would in fact improve the game experience when I just let the players carry as much stuff as they want. tl;dr: What is the game development rationale behind limiting carrying capacity of player characters?

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• How to track opens and pageviews in PDFs?

  - by Osvaldo

  I know how to track clicks in links to pdfs and pfd's downloads. But I need to track how many times a PDF is opened after being downloaded and if possible track how many times certain pages are shown to users. Tracking has to be done without warnings that personal information is being sent somewhere. I do not want readers personal informations, just to know how many opens happened, so this warnings would be inaccurate. Can anyone help by pointing to a tutorial or an example? If you are sure that this can't be done, can you please point to documentation that explains why?

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• AdventureWorks2014 installation script

  - by John Paul Cook

  The AdventureWorks2014 sample database is downloadable from here . If you choose to run the script and are unfamiliar with sqlcmd, this post shows you what to do. Be sure to extract the zip file’s contents to a new folder because the instawdb.sql comes with 72 csv files that contain the actual data. If you specify a folder other than the default, you’ll have to change a path in the instawdb.sql script to point to your directory. Figure 1. instawdb.sql script file in SSMS. Notice the 3 lines that...(read more)

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• Expression Engine vs Drupal for Theming

  - by user793011

  Ive been using Drupal for years and now with work need to learn Expression Engine. Im interested in the comparison of Drupal and Expression Engine, but purely from a theming point of view (Ive no doubt Drupal is more powerful for development). Does anyone have any insights? It seems EE does give you more control over the exact html outputted, but is this necessary? I design my graphics first and Ive always been able to make exactly what I wanted in Drupal (some theme overrides could be easier, but ive got there in the end). Thanks

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• How can one get involved in the Ubuntu Brainstorm team?

  - by Jay

  I've heard it thrown around on a lot of blogs that Ubuntu Brainstorm is the "graveyard of good ideas". I have a bit of a passion for average end-users suggesting the kinds of software they want and they way they think their applications and computers could work. I'm interested in joining the Ubuntu Brainstorm team, maybe to facilitate ideas not getting buried and making it not seem like a dead platform. Unfortunately I'm not very plugged into the "community" so I'm not sure how to go about it. I was hoping someone might be able to point me in the right direction. Thanks.

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• Starcraft 2 not displaying map in game

  - by AntiFX

  I installed Starcraft II wings of liberty via playonlinux, it installed fine, it starts up fine, but when I go into a game the map does not show, it is just black, but all my buildings/units/mineral line shows up, but everything else is black, also all the abilities do not have any graphics, and I can not see my player portrait in the menus. I am on a 32 bit version of ubuntu 12.04 with wine 1.5.10 I think it is probably a missing package I need to install...but I have no clue which one it would be, or if it is even that. Can anyone help? Thank you in advance!

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• What's the best web entrepeneur's conference to go on

  - by user4845

  Our dream as business partners was always to go to a conference overseas. Now that we can finally afford to, we have no clue of which one to go to. Which conference would you guys suggest from a web entrepeneur's point of view, if there were just one to go to? Perhaps something that included a bit of marketing, new thinking, innovation, inspiration. We were very keen on Google IO previously, but were concerned that it would be very Google product focused. Huge thanks!

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