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  • Why avoid pessimistic locking in a version control system?

    - by raven
    Based on a few posts I've read concerning version control, it seems people think pessimistic locking in a version control system is a bad thing. Why? I understand that it prevents one developer from submitting a change while another has the file checked out, but so what? If your code files are so big that you constantly have more than one person working on them at the same time, I submit that you should reorganize your code. Break it up into smaller functional units. Integration of concurrent code changes is a tedious and error-prone process even with the tools a good version control system provides to make it easier. I think it should be avoided if at all possible. So, why is pessimistic locking discouraged?

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  • Maven 2: How to package current project version in a WAR file?

    - by Tom van Zummeren
    I am using Maven 2 to build my Java project and I am looking for a way to present the current version number of the pom.xml to the user (using a Servlet or JSP for example). As far as I can see, the best way would be that Maven packages the version number as a text file into the WAR. This allows me to read the version from that file and present it the way I want. Does anyone know of a plugin that can do something like that for me? Maybe the WAR plugin can be configured to do so? Or maybe using some other approach all together?

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  • Python: Best practice for including a version number in an app?

    - by Ben
    I have a PyQt application that reads and writes data files. I am including a 'version number' in each file written. This is a simple number similar to: 1.2 or something (major and minor versions). I am doing this so that I can change the format of these data files in future versions and then still correctly parse them simply by checking to see what the version is inside the file. My question is what is the best practice for keeping this number stored inside the app itself. I.e. do I just hard-code the app version number into the class that is responsible for reading and writing files? Or should I have some sort of object/variable stored at the top-level of the app and somehow access it from the class responsible for reading and writing these files. If the latter, how do I store it and how do I access it? Thanks.

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  • Latest XP Drivers for Intel Integrated Graphics

    - by John
    On the Intel site I'm struggling to find what the latest driver version is for certain chipsets. From a system info tool I have several PCs (laptops) with the following reported graphics: Mobile Intel(R) 4 Series Express Chipset Family Intel(R) Q35 Express Chipset Family Intel(R) Q45/Q43 Express Chipset All use the same driver igxprd32.dll at version 6.14.0010.4xxx (last 3 digits vary). All PCs are XP 32 bit. I am not certain but I think these are all using the same basic chipset. More than likely the drivers were never updated so I wondered what version might be relevant. Any help on tracking down the latest driver version (I just need the number, so I can see how out of date they are) and figuring out which chips these cards are would be great.

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  • Naming the implementation version of an interface function

    - by bolov
    When I need to write an implementation version of an interface function, I put the implementation function within a impl namespace, but with the same name as the interface function. Is this a bad practice? (the same name part, the namespace part I am confident it’s more than OK). For me, who I write the code, there is no confusion between the two, but I want to make sure this isn’t confusing for someone else. One other option would be to append impl suffix to the function name, but since it is already in a separate namespace named impl it seems redundant. Is there an idiomatic way to do this? E.g.: namespace n { namespace impl { // implementation function (hidden from users) // same name, is it ok? void foo() { // ... //sometimes it needs to call recursively or to call overloads of the interface version: foo(); // calls the implementation version. Is this confusing? n::foo(); // calls the interface version. Is this confusing? // ... } // namespace impl // interface function (exposed to users) void foo() { impl::foo(); } } // namespace n

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  • MYSQL – Detecting Current Version of MySQL Server Installation

    - by Pinal Dave
    Here is one of the most popular questions which I receive which is related to MySQL installation. The question is how do I know which version of the MySQL I have installed on my server. Here is the simple trick which works all the time. Connect to your MySQL engine with the help of Command Prompt or MySQL Workbench. When you execute the following command it will give us all the necessary information related to MySQL Version. SHOW VARIABLES LIKE "%version%"; Here is the screenshot of the result which I receive when I ran above command on my Test Server. Reference : Pinal Dave (http://blog.SQLAuthority.com) Filed under: MySQL, PostADay, SQL, SQL Authority, SQL Query, SQL Tips and Tricks, T SQL

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  • "initialization error: class file has wrong version" message in JDeveloper 10.1.2.x

    - by [email protected]
    The "initialization error: class file has wrong version" has become a somewhat recurrent error message thrown by JDeveloper 10.1.2.x as newer JDKs have been released in the last years. Note that JDeveloper 10.1.2 was developed to run with JDK 1.4.2. The reasons for this error message to be thrown include: A JDK version higher than 1.4.2 is being used and some unexpected incompatibility conflicts can occur because of that Some of the libraries used on the workspace and/or project were compiled with newer JDK version So, it is strongly recommended to use newer JDeveloper versions (10.1.3 - 11g) for newer JDKs. JDeveloper 10.1.2 will be desupported in December 2010 (or later depending on the support contract). Further information about this can be seen at http://www.oracle.com/support/library/brochure/lifetime-support-middleware.pdf

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  • Installing a downgraded version of Firefox 16 from PPA

    - by Mikko Ohtamaa
    I'd like to fetch and install old FF16 instead of FF17 on Ubuntu 10.04 LTS server. Currently FF17 is default. FF17 is incompatible with Selenium 2.26 http://stackoverflow.com/questions/13600247/unable-to-run-selenium-suite-on-firefox-17 How one can install an old version of Firefox with apt-get? Can one pindown this version so that it is not automatically updated? Also if there exists a static FF16 installation available it is a solution. apt-cache policy firefox firefox: Installed: 17.0.1+build1-0ubuntu0.10.04.1 Candidate: 17.0.1+build1-0ubuntu0.10.04.1 Version table: *** 17.0.1+build1-0ubuntu0.10.04.1 0 500 http://dk.archive.ubuntu.com/ubuntu/ lucid-updates/main Packages 500 http://security.ubuntu.com/ubuntu/ lucid-security/main Packages 100 /var/lib/dpkg/status 3.6.3+nobinonly-0ubuntu4 0 500 http://dk.archive.ubuntu.com/ubuntu/ lucid/main Packages

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  • Drupal : le CMS open-source sortira en version hébergée en 2010 pour concurrencer WordPress, Google

    Le CMS open-source Drupal sortira en version hébergée Courant 2010 pour concurrence WordPress, Google Sites et Microsoft CMS Acquia, la société qui édite Drupal, vient d'annoncer qu'une version hébergée de son célèbre CMS open-source en PHP ? qui sert par exemple à concevoir le site de la NASA ? serait lancée vers le milieu de l'année. Baptisée Drupal Garden, cette version est actuellement en beta-test privé. Elle sera destinée à concurrencer WordPress, actuel leader sur le marché, et à démocratiser l'outil jusqu'ici assez peu connu du grand public. Drupal a en effet souvent été critiqué pour sa complexité. Le CMS propose effectivement un grand nombre de modules comp...

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  • How To Create a Portable USB Version of Microsoft Office Starter 2010

    - by Taylor Gibb
    Microsoft Office 2010 Starter edition is a free, ad-supported version of Office 2010 meant to be included on new PCs. It only includes Word and Excel with a subset of features—but it does let you make a portable version. Here’s how to do it. Note: The download link provided in the following article is not exactly a “Microsoft Approved” link and may stop working at any time. Still, the Starter version of Office is meant to be ad-supported freeware, and they haven’t pulled the download despite widespread use of it online. How to See What Web Sites Your Computer is Secretly Connecting To HTG Explains: When Do You Need to Update Your Drivers? How to Make the Kindle Fire Silk Browser *Actually* Fast!

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  • Version control and personal configuration file

    - by Erel Segal Halevi
    Our project uses a user-specific configuration file. This file is currently not in version control, since it is different for each user. The problem is, whenever a developer adds a new module that requires configuration, or changes the name of an existing modules, the other developers get errors because their private configuration files are not updated. To solve the problem, we thought of working with two configuration files: a default/global configuration file that will be in version control and will be updated regularly by each developer that adds a new module, and a private configuration file that will be kept out of version control and will contain only the user-specific changes. However, this still seems like an ad-hoc solution. Can you propose a better solution? What do the professionals do?

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  • Firefox : abandon du développement de la version 64 bits pour Windows, trop buggée pour Mozilla

    Firefox : abandon du développement de la version 64 bits Sous Windows, trop buggée pour Mozilla Un des responsables de la Fondation Mozilla en charge de « l'engineering » - Benjamin Smedberg - vient d'appeler à mettre fin au développement de la version 64 bits de Firefox pour Windows. La raison ? Cette déclinaison serait une « source continue d'incompréhension et de frustration » pour les utilisateurs et la communauté. Incompréhension parce que les extensions ne sont que rarement compatibles avec cette version. Frustration, parce que le navigateur serait truffé de bugs inextricables et non corrigés (ce qui, d'après Benjamin Smedberg, ferait que ses utilisateu...

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  • Can I remove the latest ubuntu version without having to reinstall the old version?

    - by Emily
    I was using the 2.6 kernels with no problems, but when I updated to the 3.0 kernel, my bootup failed. I can manually boot with ctrl+alt+f1 startx and my login, but admittedly, i googled this and have no idea what I'm really doing. I have been trying to figure out how to go back to the old version, and eventually figured out the grub menu--i booted from all three 2.6 (.8, .10, and .11) editions of the previous version of ubuntu but they all had the same error as the 3.0 kernal. I can get logged in manually once the boot fails, but when i get to my desktop, wireless is not responsive and will not connect, and portable hard drives do not mount and/or are unresponsive. the previous version worked perfectly. I use an asus netbook. it's an eee pc. i don't have two OSs on it. i had to go to another computer to get to the forum... If the solution is simple, i just don't know what it is.

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  • mismatch of version of libkdcraw20 and libkdcraw-data

    - by naveen jankar
    I'm using Ubuntu 12.04 LTS. When I'm installlin digiKam, I'm getting a mismatch in the versions of libkdcraw20 and libkdcraw-data wanted by it and that available in the repositories. It wants version 4.8.5-0ubuntu0.2 (or in other words that is the latest version according to synaptic) but the available one is 4.8.5-0ubuntu0.3 in both cases. Is there a work-around? Or how do I request the Ubuntu managers to rectify this? addenda On Synaptic i selected digikam to be installed. it downloaded all the dependencies but the 2 in question were not found - the message it gave "W: Failed to fetch security.ubuntu.com/ubuntu/pool/main/libk/libkdcraw/… 404 Not Found [IP: 91.189.91.13 80]". I google-searched the 2 files in the repositories to find that the version available there is ubuntu0.3 instead of ubuntu0.2.

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  • Sortie de la version 1.5 de JRuby avec une amélioration du support sous Windows

    Bonjour, La semaine dernière est sortie la version 1.5 de JRuby, version à laquelle ont contribué pas moins de 30 développeurs Open Source. Parmi les 4 core developpers, 3 font partie de la société Engine Yard. Les avancées principales pour cette version sont :Meilleure intégration avec les librairies Java (gestion mémoire et CPU plus efficace) Amélioration de la compatibilité avec Ruby (Ruby 1.8.7) Amélioration du support pour Windows (les nombreux problèmes qui rendait son utilisation sous Windows compliquée ont été traités) Pour les développeurs Java, il est également à noter de meilleures intégration avec Ant et Maven. Qui utilise régulièrement JRuby, et dans quel cadre ?

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  • Unified Communications Suite Ships New Version

    - by joesciallo
    We shipped the latest version (7.0.5.0.0) of Unified Communications Suite. The following information should get you started: Get the Software New Features Release Notes Some Changes for 7.0.5.0.0 Convergence: Version 3.0.0.0.0 enables you to use the add-on framework to add third-party services to the Convergence UI. These services include: Advertising Click-to-call service Multinetwork IM SMS (both one-way and two-way) Social media applications (Facebook, Twitter, and Flickr) Video and voice calling capability For more information, see Overview of Add-on Services in Convergence. Calendar Server: Version 7.0.4.14.0 provides a number of security enhancements, including supporting the SSL protocol for all front-end and back-end communications, and the ability to list hosts that are allowed to send iSchedule POST requests. For more information, see Securing Communications to Calendar Server Back Ends. New Platform Support: Oracle GlassFish Server 3, Oracle Solaris 11, and Oracle Enterprise Linux 6.x are supported in this release of Communications Suite.

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  • Choice of Operating System Version for Azure Roles

    - by kaleidoscope
    Customers can now choose when their applications receive new operating system updates and patches by selecting which version of the operating system their applications will run on in Windows Azure.  Right now there is only one available operating system version (released on December 17th, 2009), but new builds with the latest updates and patches will be released regularly.  This new feature allows developers to test their applications when new patches come out before upgrading their production deployments. To select an operating system version for your application, add the new osVersion attribute to your service configuration file.  The full list of available operating system versions is maintained in the Configuring Operating System Versions topic in the Windows Azure MSDN documentation.   Sarang, K

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  • Where to find PHP version usage stats?

    - by Darren Cook
    My original question was: what percentage of sites are using php 5.4.x? (As it has some very interesting new features.) With secondary questions like how many of the cheap web hosting places have upgraded, which versions of the linux distros include it, etc. But I'm coming up blanks. http://php.net/usage.php stops at July 2007, and the nexen.net website seems to have stopped in 2008. At SecuritySpace they only list the web servers, not php versions. The TIOBE link isn't what I'm after (it doesn't -- and couldn't -- break down by version number. I thought php.net might show download numbers, but I cannot see them anywhere. I kind of answered the distro question, but it requires a lot of clicking around at distrowatch.com. E.g. I see here that Ubuntu offers php 5.4.6 in the latest snapshot, but the latest release (Ubuntu 12.04) has 5.3.10.

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  • Microsoft dévoile la version CTP de Dryad et DryadLINQ pour le développement parallèle et distribué

    Microsoft dévoile la version CTP de Dryad et DryadLINQ Pour le développement parallèle et distribué Microsoft vient de publier la version CTP de ses environnements de calculs parallèles et distribués qui seront commercialisés dans les semaines à venir, Dryad et DryadLINQ. Dryad est un moteur de calcul haute performance pour des calculs distribués, conçu pour simplifier la mise en oeuvre d'applications distribuées. DryadLINQ, lui, permet aux développeurs d'implémenter des applications Dryad en code managé à l'aide d'une version étendue du modèle de programmation LINQ. A la base, la technologie Dryad était un projet de recherche de Microsoft pour l'exécution des donnée...

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  • Go passe en version 1.0, le langage de Google est prêt pour être utilisé en production

    Google vient d'annoncer que son langage open source Go était disponible en version 1.0n ce qui marque une importante étape dans l'évolution de ce langage. Rappelons que Go est un langage compilé permettant de simplifier le développement d'applications concurrentes. Il est destiné notamment à la programmation système. Le passage de Go à version 1.0 suppose que le langage soit prêt pour être utilisé en environnement de production et que tout programme créé avec cette version puisse être compilé et exécuté sans modification de code avec les versions suivantes. Toutes les applications s'appuyant sur les versions précédentes doivent être exécutées avec un programme GoFix qui corrigera les problèmes de compatibilité. Avec cette ...

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  • What "version naming convention" do you use?

    - by rjstelling
    Are different version naming conventions suited to different projects? What do you use and why? Personally, I prefer a build number in hexadecimal (e.g 11BCF), this should be incremented very regularly. And then for customers a simple 3 digit version number, i.e. 1.1.3. 1.2.3 (11BCF) <- Build number, should correspond with a revision in source control ^ ^ ^ | | | | | +--- Minor bugs, spelling mistakes, etc. | +----- Minor features, major bug fixes, etc. +------- Major version, UX changes, file format changes, etc.

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