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• Domain Model and Querying

  - by Tyrsius

  I am new to DDD, having worked only in Transaction-Script apps with an anemic model, or just Big Balls of Mud, so please forgive any terminology I abuse. I am trying to understand the proper separation between the domain model and the repository. What is the proper way to construct a domain object that is coming from a database, assuming the (incredibly simplified) need to query for objects by status (returns enumerable), or by ID. Should a factory be building the objects, exposing methods for GetByStatus() and GetByID(), using a DIed repository? Should a repository be called directly, knowing how to build a domain model from the DTO? Should the domain model have a constructor for get by ID, using a DIed repoistory to load the initial state, using some other (?) method for the list? I am not really sure what the best way would be, and this question has an answer advocating each one (these are certainly mutuallu exclusive).

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• Creating a simple 2d game with C++: Where to go first? [on hold]

  - by Lucas Vieira

  I'm starting to build a little school project. (I have a prior experience with php, python and java, and i'm learning c++ now). My part is simple, create a game, like this pong http://www.ponggame.org/ The problem is that I've never programmed a game before. I was looking the possibilities, maybe use QT? Or is there other library better for my case? Since i don't want to reinvent the wheel, where to start with? Thank you, guys!

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• Windows Phone : 23 % de possesseurs d'un smartphone sous l'OS proviennent d'Android, sa galerie franchit le cap des 160 000 applications

  Windows Phone : 23 % des possesseurs d'un smartphone sous l'OS proviennent d'Android sa galerie franchit le cap des 160 000 applicationsWindows Phone se porte bien. C'est le message qu'a voulu passer Microsoft lors d'une session destinée aux développeurs d'applications mobiles pendant la conférence Build.L'éditeur rassure et se réjouit : Windows Phone est désormais le troisième OS mondial devant BlackBerry, qui aurait perdu sa place en mai dernier. Une position que la société est persuadée de maintenir. « Je ne pense pas qu'ils (N.D.L.R. : BlackBerry) puissent mettre sur la table quelques-unes des choses que nous avons faites pour être disponibles sur plusieurs segments », se félicite Larry...

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• WCF RIA Services - Hands On Lab

  At the keynote for the Silverlight 4 Launch alongside Scott Guthrie I demonstrated (minute 28 to minute 38) how to build a Silverlight 4 application using WCF RIA Services and the new Visual Studio 2010 tooling. The application I built is an online book store to rival the big boys OK, well, maybe not the big boys but you get the idea. As promised I am elaborating on the presentation and breaking down the steps to create the application here. I included the starter solution and the completed...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• How do I share common classes between windows forms and web applications using C#?

  - by earthdog

  In our environment we have multiple ERP servers plus data that are coming from multiple sources. I need to create a development roadmap for the coming years as it is obvious that side applications will be needed for many things. The choice is that the development will occur with Microsoft technologies. This means that I will be building either web apps (MVC, web forms e.t.c) or standard windows forms applications. The thing here is that I will be creating classes that will encapsulate the business logic that I want to apply to the different projects. What I thought so far: 1) Create class libraries dlls containing the required logic 2) Reuse these libs in my apps. But what about the web apps? Should I use the dlls directly or I should encapsulate them in web services and consume the web services in web apps? In general I would like to find out how should I build my strategy.

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• Should I use XNA (C#) or Java to create a basic game engine?

  - by Xboxking

  My project is to design and build a game engine (in just about 3 months). I've been looking at two options for this game engine, either make it with XNA (and C#) or Java. My experience with XNA/C# is zero to none, however I have been a Java programmer for around 4 years. I've had a little play around with both but I am still not sure what would be best to use (i.e. what would turn out better with my experience). XNA is obviously for making games and I would presume making a game engine would be slightly easier in this - however that said, there are numerous libraries available in Java that could be used for a game engine (such as lwjgl). What would be my best option and ideally produce the best results out of both XNA or Java? For your information, the game engine at the moment is a 2D one and is not too advanced (although I plan to extend it in the future). Thanks in advance for all answers!

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• Miracles in your work

  - by MobileDev123

  Lot of things has been discussed that can be taken as negative things about programmers, Lets discussed about something good and unexpected happenings in your programmer life... Like: (after R&D of two days and a lot of disappointments ) You just spend an hour with your PM to explain that some feature having some problem and we are unable to release this module in today's beta... after a lot of arguments you are given an hour to make your app work without this module, you sit on your workstation to make a release and all of a sudden you found a silly problem behind that module..... (you solve it and prepare a desired build) did you face miracle (= sudden, positive surprises?) in your life?? what was your reaction in case you have come through such experience?? (N.B. I know my English is not that good and that's why I'm open to every linguistic mistakes needed to be corrected)

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• Tell the kernel to strongly cache a particular directory

  - by silviot

  This question is a rephrasing of Optimizing EXT4 performance. I have a directory that contains build files, most very small, but totaling 5.6G. I usually access the same subset of files (some thousands, for some tens of megabytes) over and over again. The subset changes daily (different projects, different versions of libraries). What takes longer when I use it seem to be disk seeks. For example if I do a du twice the second time it takes as much time as the first, and disk activity is similar. Ideally I'd like to tell the kernel to allocate X Mb to the metadata and Y to data in the folder, like the options for nfs cache. Is it possible in some way, other than mounting nfs from localhost and caching it to a ramdisk?

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• Free & Open Source XML Editor Built on Maven

  - by Geertjan

  Here you can download the sources of an XML Editor that uses libraries from NetBeans IDE 7.3 Beta 2 as its basis, while using Maven as its build system: http://java.net/projects/nb-api-samples/sources/api-samples/show/versions/7.3/misc/XMLEditorInMavenNBRCP And here's what it looks like to the user: Note: The Favorites window has been rebranded as "File Browser" and Nimbus is used for the look and feel, thanks to a .conf file that is registered in the POM of the application project.  The cool part is that I didn't type one line of code to get the above result and that only those pieces that an XML Editor actually needs are included in the application, though it could be pruned even further.

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• 100% APC Fragmentation - Cacherouter & Pressflow install

  - by granttoth

  My APC cache has a 100% fragmentation. I'm not quite sure I understand what is going on here. For testing I jacked the available memory up to 512. After a day the total available free memory shows 73% but I still have 100% fragmentation. Would you gurus please look at my settings and offer your advice? Oh, I have read people suggest that I disable apc.stat when possible but when I do the site crashes. I am using the Pressflow build of Drupal 6 with the cacherouter module installed. Edit: (added screenshot) http://i.imgur.com/DqZEX.png

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• How to update all the installed software in Ubuntu without using any PPA?

  - by Suchith JN

  I've got many softwares installed. But when the new version is released I'm not getting notified from the application that an update is available. And I found that in most of Ubuntu applications the Update option is not available. I should wait for the next release for an updated version of the software. I've been updating Mozilla using the packages available from their PPA. In ubuntu is there any way to update the softwares without using any PPAs? Please don't recommend Build from source method since I don't like to do all those weird stuff like configuring the things manually etc.

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• External hard-drive is "clicking" when idle [closed]

  - by mirumir

  I'm struggling with a very annoying issue: My new hard-drive (Samsung Spinpoint M8 1TB (HN-M101MBB) was build in an USB 3.0 external case (Lian Li EX-10QR) and formatted with ext4. When this hard-drive is connected to my Notebook via USB 2.0 it "klicks", the LED flashs too, every second, but only when it's idle! It stays silent, when something is copying or reading from it. But when this drive was formatted with ext3 or fat, it always remained silent. This also happens with a Western Digital WD10JPVT Scorpio Blue, but the "klicks" are even louder! System: 12.04 64-bit with Gnome-Shell. Any ideas how to approach this issue?

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• VDC Research Webcast: Engineering Business Value in the IoT with Java 8

  - by tangelucci

  Date: Thursday, June 19, 2014 Time: 9:30 AM PDT, 12:30 PM EDT, 17:30 GMT The growth of the Internet of Things (IoT) opens up new service-driven opportunities, delivering increased efficiencies, better customer value, and improved quality of life. Realizing the full potential of the Internet of Things requires that we change how we view and build devices. These next-generation systems provide the core foundation of the services, rapidly transforming data to information to value. From healthcare to building control systems to vehicle telematic systems, the IoT focuses on how conneted devices can become more intelligent, enhance interoperability with other devices, systems and services, and drive timely decisions while delivering real business return for all. Join this webcast to learn about: Driving both revenue opportunities and operational efficiencies for the IoT value chain Leveraging Java to make devices more secure How Java can help overcome resource gaps around intelligent connected devices Suggestions on how to better manage fragmentation in embedded devices Register here: http://event.on24.com/r.htm?e=793757&s=1&k=4EA8426D0D31C60A2EDB139635FF75AB

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• Is programming for me? It seems too rigid and unforgiving.

  - by AM

  This question is a follow-up to: Should I continue to pursue programming based on my experience? I am currently majoring in CS in college and was thinking along similar lines as the above question. I'm fine at math and logic, but I haven't yet found programming to be enjoyable. Although I like the idea of being able to build software, too much of it seems to consist of figuring out tiny details or dealing with annoying bugs. So far I've only done small school projects and the like. Does programming become more enjoyable once you have more experience? How can someone know if a career in it is for them?

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• SQL Server 2012 Service Pack 1 Cumulative Update #1 is available!

  - by AaronBertrand

  Waited to deploy SQL Server 2012 until Service Pack 1 was released? Then held off because Service Pack 1 did not include important updates from Cumulative Update #3 and Cumulative Update #4 ? You're running out of reasons to procrastinate! The SQL Server team has released CU #1 for Service Pack 1, which should include all of the fixes from CU #3 & CU #4, as well as some others. KB article: KB #2765331 Build # is 11.0.3321 I count a whopping 44 fixes! Relevant for builds 11.0.3000 -> 11.0.3320....(read more)

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• I need some help creating a non-binary tree (or some other data structure that will better solve my problem)

  - by EDO

  I have about ten lists of numbers and some strings. Each list has about <= 30K lines. Each line on a list has a distinct number. I need to build an efficient way of finding all the lines in each list that has the same 'control' number (or key for dB guys) and comparing what is in their string parts. I am writing this in Java. I have thought about using trees but my brain cells are about burnt now. I need some help.

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• Has the Appindicator or GtkMenu API changed in Saucy?

  - by marxjohnson

  I've written a custom application indicator, which isn't working properly on saucy. The menu is initialised with a few items, then updates regularly, adding or removing menu items. This worked fine <13.10, but on 13.10, the line that adds the menu to the indicator produces the following warning: Warning: /build/buildd/glib2.0-2.38.0/./gobject/gsignal.c:2475: signal 'child-added' is invalid for instance '0x24390e0' of type 'GtkMenu' self.ind.set_menu(self.menu) And the items added to the menu subsequently dont appear. A bug has been filed against several indicators for the same problem, but it's not clear to me whether this is a problem with the indicators as a result of an API change, or a bug in the GTK or Appindicator libraries. Does anyone know?

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• Help! GUI design tool for web & windows applications (2 replies)

  Hi All, We are currently looking to buy a Windows &amp; Web GUI design tool. Our company is doing softwares for Windows &amp; Web application with Visual Studio 2008. Our clients will be using this tool to build screenshots. Projects delivery should be faster with this tool. Do you have any suggestions ? Of course, a Microsoft Parter product is better... Thanks for your help! Simon Levesque Sonim6 Inc.

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• how can I start developing games? [closed]

  - by miguelacho

  as you may know very well, every individual related with software development is somehow related to the science or the activity that the program was made for, I am currently working as a programmer for a company that is dedicated to build enterprise software for ensurance business, before this job, I was working with a travel agency developing extra modules for the CRM they use (VTiger), so I can say I am related to ERP/CRM, the fact is, I would like to change this to another activity, like developing video games. I'd like to start developing games, by getting a job or making my own project, but: 1) I have no experience developing video games, is that an obstacle if I want to get a job? if is that so, how can I solve it? 2) if I want to make my own project I will need more people, like a graphic disigner or some others, isn't there a way to make the whole game by my own?

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• khotkey script calling bindings stop to work on switching to Quantal

  - by Adobe

  I have many scripts which I call with khotkey. For example I have a hotkey which executes: bk_starts_or_brings.bash 'Konsole' konsole On updating to Quantal -- it stops to work: if I call that key -- it searches bk_starts_or_brings.bash 'Konsole' konsole in google in default web-browser. I tried: sudo apt-get install --reinstall libgl1-mesa-glx libgl1-mesa-dri xserver-xorg-core sudo dpkg-reconfigure xserver-xorg sudo apt-get install build-essential cdbs dh-make dkms execstack dh-modaliases fakeroot libqtgui4 When I start the command from konsole -- it works as expected, but when I call it with khotkey -- it doesn't. I guess someone shadows my keybiding. Or some daemon is not run on startup.

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• Ubuntu is not booting - "No init fount. Try passing init= bootarg." , Install from Windows (Wubi)

  - by Hunzai

  Unbuntu 10.04 installed from Windows 7 (Wubi filesystme), Now Ubuntu is not booting giving this error. Target filesystem doesn't have /sbin/init. No init fount. Try passing init= bootarg. BusyBox v1.13.3 (Ubuntu 1:1.13.3-1ubuntu7) built in shell (ash) Enter 'help' for a list of build in commands (initramfs) The solutions given by folk is like [http://learntoconfigure.wordpress.com/2012/11/29/ubuntu-cannot-boot-no-init-found-try-passing-initbootarg/] Can't solved my problem because Ubuntu is installed from windows and all the drive shows of windows, Can anyone help me? thanks, Hunzai

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• Examining ASP.NET's Membership, Roles, and Profile - Part 18

  Membership, in a nutshell, is a framework build into the .NET Framework that supports creating, authenticating, deleting, and modifying user account information. Each user account has a set of core properties: username, password, email, a security question and answer, whether or not the account has been approved, whether or not the user is locked out of the system, and so on. These user-specific properties are certainly helpful, but they're hardly exhaustive - it's not uncommon for an application to need to track additional user-specific properties. For example, an online messageboard site might want to also also associate a signature, homepage URL, and IM address with each user account.There are two ways to associate

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• Best Graphics card (Setup) for three, high-res monitors attached to desktop

  - by nomrasco

  I have been looking around a little bit, but most of the discussions are about problems with already existing systems (particular graphics card and setup etc.). I would like to ask what would be the best option for me if I want to build powerful desktop with triple monitor setup. I have one Dell UltraSharp U2713HM (27 inches, 2560x1440) and I was thinking about getting two more. Would it be possible to have those three working with ubuntu (kubuntu) on any graphics card out there today? What is the best option if it comes to choosing particular model? Should I use proprietary drivers or some open sourced ones? I am not a gamer. I mostly develop on my machines and running some computational tasks, but I would rather like to spend some more money and have setup where I don't see any lags :) thank You very much in advance! Darek

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• The Path to Best-In-Class Service Business Performance

  - by Charles Knapp

  What would it matter to offer your customers best-in-class service and support experiences? According to a new study, best-in-class companies enjoy margins that are nearly double the average, retain almost all of their customers each year, deliver annual revenue growth that is six greater than average, and realize cost decreases rather than increases! What does it take to become best in class? Some of the keys are: Engage customers effectively and consistently across all channels Focus on mobility to improve reactive service performance Continue to transition from primarily reactive to proactive and predictive service performance Build the support structure for new services and service contracts Construct an engaged service delivery team Join the Aberdeen Group, Oracle, Infosys, and Hyundai Capital as we highlight the key stages in the service transformation journey and reveal how Best-in-Class organizations are equipping themselves to thrive in this new era of service. Please join us for "Service Excellence and the Path to Business Transformation" -- this Thursday, October 25, 8:00 AM PDT | 11:00 AM EDT | 3:00 PM GMT | 4:00 PM BST.

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• java application architecture

  - by LostMohican

  We have to write an administration panel for many customers. But we want to have just one administration panel, and use it in various projects. This admin panel will have basic components such as access control logic, maker-checker system in changes, user logging and etc. It will also have reporting for the customer, logs of transaction of the customer (which can vary according to the industry such as mobile banking, banking, ticket sales). These components may have to be modified according to the business. So we are thinking about the architecture here, Is it OK to use jars of every basic components, and bring them together on a glue application? Or should we build each component as WARs and make interfaces between them? If there are any more ideas, it will be appreciated.

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