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• Petstore using Java EE 6 ? Almost!

  - by arungupta

  Antonio Goncalves, a Java Champion, JUG leader, and a well-known author, has started building a Petstore-like application using Java EE 6. The complete end-to-end sample application will build a eCommerce website and follows the Java EE 6 design principles of simple and easy-to-use to its core. Its using several technologies from the platform such as JPA 2.0, CDI 1.0, Bean Validation 1.0, EJB Lite 3.1, JSF 2.0, and JAX-RS 1.1. The two goals of the project are: • use Java EE 6 and just Java EE 6 : no external framework or dependency • make it simple : no complex business algorithm The application works with GlassFish and JBoss today and there are plans to add support for TomEE. Download the source code from github.com/agoncal/agoncal-application-petstore-ee6. And feel free to fork if you want to use a fancy toolkit as the front-end or show some nicer back-end integration. Some other sources of similar end-to-end applications are: • Java EE 6 Tutorial • Java EE 6 Galleria • Java EE 6 Hands-on Lab

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• How to include content from remote server while keeping that content secure

  - by slayton

  I am hosting collection of videos, for which I retain the copyright, on a file server that I'd like to share with family and friends. When a user visits the my fileserver via a web browser they are asked to authenticate using HTTP auth and then they are presented with a basic list of the files. I'd like to build web application that provides a clean interface with simply library functionality. However, this app will be hosted on a different server. I'm trying to figure out a security model for my file server that doesn't require the user to login to both the file-server and the hosting-server. I want to make this as easy as possible for my non-tech savy family while still maintaining security for my files.

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• Creating a new variable versus assigning an existing one

  - by rwallace

  Which is more common, creating a new variable versus assigning an existing variable (field, array element etc - anything that syntactically uses the assignment operator)? The reason I ask is that I'm designing a new language, and wondering which of these two operations should get the shorter syntax. It's not intended to be a pure functional language, or the question wouldn't arise, so I'd ideally like to count usage across large existing code bases in procedural and object-oriented languages like C, C++ and Java, though as far as I can see there isn't an easy way to do this automatically, and going by memory and eyeball, neither is obviously more common than the other.

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• What are the benefits of a disk install vs. Wubi? And can I migrate my settings easily?

  - by Alex Bixel

  I chose to do the Wubi install because it was short, simple, and easy to reverse (no messing with partitions required). To be honest, I can handle the lack of a hibernate function. I haven't really heard many other benefits of installing on a separate partition than hibernation and negligibly faster hard disk read/write. Yet almost everyone I encounter seems to have opted for the disk installation. Are there more benefits I should be aware of, especially as a college student who wants a fast, efficient machine for documents, web browsing, etc. (nothing big like gaming, I can run that on Windows)? Also, I have a fair amount of settings and packages installed that I spent a bit of time on and would rather not have to do again. Is there any way I can migrate all of these settings from the virtual disk on my C:/ drive (Wubi installation) to the disc installation in another partition? (I have a 16GB USB drive if that'll do the trick)

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• Triple Boot Question

  - by Rick

  I have successfully set up a a win7,win8 and Ubuntu 12.10 system. Windows 8 and Ubuntu are located on the same SSD, while windows 7 is located on another SSD. All went great and I can continue playing around with all 3 OS's. My only annoyance is, while restarting, windows 7 boot loader runs first. If I select ubuntu in the win7 manager it then runs grub2 and asks me to select an os. I used easy bcd to add entries into win8's boot manager and was hoping to just use that one. I installed ubuntu's loader on to its own partition. Any suggestions to just use Win8 loader and still be able to choose between all 3?

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• Avoiding "double" subscriptions

  - by john smith

  I am working on a website that requires a bit of marketing; let me explain. This website is offering a single, say, iTunes 50$ voucher to a lucky winner. To be entered in the draw, you need to invite (and has to join) at least one friend to the website. Pretty straightforward. Now, of course it would be easy for anyone to just create a fake account and invite that account so, I was thinking of some other way to somehow find out of possible cheating. I was thinking of an IP check on the newly subscribed (invited) user, and if there is the same IP logged in the last 24 hours, and if that's the case, investigate more about it. But I was thinking that maybe there is a more clever way around this issue. Has anyone ever though about this? What other solutions did you try? Thanks in advance.

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• Take Camera Phone Macro Photos with a Cheap Laser Pointer Lens

  - by Jason Fitzpatrick

  Inside those cheap laser pointers you see in the grocery store checkout line there’s a handy little plastic lens that, when slapped on your phone’s camera, makes it easy to take macro photographs. In this tutorial, they take the lens from a laser point and secure it using tape and a bobby pin. An alternative method to achieve the same end (and with a higher quality lens) is to dismantle a CD/DVD drive to source the lens and use painter’s tape to hold the lens in place–this is the technique I used several years ago, check out the tutorial video here. Laser Pointer Macro Lens [via Apartment Therapy] How to Get Pro Features in Windows Home Versions with Third Party Tools HTG Explains: Is ReadyBoost Worth Using? HTG Explains: What The Windows Event Viewer Is and How You Can Use It

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• How to open the terminal? (Mis-configured the profile)

  - by JiminP

  I am quite new to Ubuntu. (I started to use Ubuntu about a year ago, but I don't know how to use things like terminal well. All I used by console was easy things like ls or cd, to use gcc.) Today, I found 'profile' property of the terminal, and I created a new profile. Then, I changed some properties like font color and opacity. Soon, I found something like 'command', and for test, I set that to ls. I closed and re-opened the terminal. However, the terminal terminates right after it appeared. I soon remembered that there was option like 'close right after the command is executed'. Therefore, I can't use Gnome Terminal D: ... I found Konsole at Ubuntu software center, but that's just not my style (especially cursor, its position is little weird...). Question : How to change the profile of Gnome Terminal, without opening it?

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• Reader Poll: Are You Switching to Internet Explorer 9?

  - by Jason Fitzpatrick

  The recent release of Internet Explorer 9 polished up the IE line with a new interface, hardware acceleration, and more. Is enough to convince you to switch? Yesterday we gave you a full run down of the Internet Explorer 9 release and highlighted the major improvements including: a totally new interface that’s even more streamlined than that of Google Chrome, direct access to your video card for super fast acceleration, customizable menus for pinned sites, HTML 5 support, and a combined address and search bar, among other improvements. Is it enough to sway you? Cast your vote in the poll below and then sound off in the comments. How-To Geek Polls require Javascript. Please Click Here to View the Poll. How to Create an Easy Pixel Art Avatar in Photoshop or GIMPInternet Explorer 9 Released: Here’s What You Need To KnowHTG Explains: How Does Email Work?

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• What is the good way of sharing specific data between ViewModels

  - by voroninp

  We have IAppContext which is injected into ViewModel. This service contains shared data: global filters and other application wide properties. But there are cases when data is very specific. For example one VM implements Master and the second one - Details of selected tree item. Thus DetailsVm must know about the selected item and its changes. We can store this information either in IAppContext or inside each concerned VM. In both cases update notifications are sent via Messenger. I see pros and cons for any of the approaches and can not decide which one is better. 1st: + explicitly exposed shared proerties, easy to follow dependencies - IAppContxt becomes cluttered with very specific data. 2nd: the exact opposite of the first and more memory load due to data duplication. May be someone can offer design alternatives or tell that one of the variants is objectively superior to the other cause I miss something important?

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• Backing up VPS and Database Servers for website

  - by TravisK

  I currently have an "un-managed" (no help from hosting company) windows vps server. I am working on a good backup solution to return my site back online within a few hours. I am pretty comfortable backing up and restoring my database, however what is a good solution for backing up my VPS for easy recovery? Should I just use windows backup and create an image? I'm open to suggestions. Additionally, has anyone had to restore an entire VPS before? Is it reasonable to have it back up and running in a few hours?

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• Good message board for a website (e.g. phpBB)

  - by unixman83

  Hi, What are the best (and most widely used) Linux-based message board softwares, and the pros and cons of each. e.g. Security Vulnerabilities, Performance on a cheap server, comes pre-packaged [RPM or DEB]. I am looking for the best message board software for my website. A VPS can run almost any software, so the sky is the limit! Free, doesn't require unreasonable number of hyperlinks to their website Security focused / Widely Used, vulnerabilities are found and fixed quick Easy to keep up-to-date, i.e. prepackaged / auto-update in some way Moderator features [like pinning / message preamble], account management Themeable, customize appearance a bit

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• How to Organize Subdirectories? [closed]

  - by Gary Iverson

  I am working on my first major (several hundred pages) website design and development project. I want to create subdirectories for each of the website's categories, which in turn have their own subdirectories for easy user navigation. Example: website.com/directory. I am aware that by placing an index.html file within each directory, the browser automatically detects and navigates to that page, but that seems like a messy solution (having multiple index.html files, albeit in distinct folders), and I cannot imagine everyone does that. So my question is...how do you properly organize and use subdirectories?

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• Need Sql Server Hosting 50GB or More

  - by Leo

  Hi I am looking for a Hosting solution (Dedicated or Shared) which will allow me to host a SQL Server database service (Not SQL Express but the Web edition). The size of my database might grow to 50GB or more. The web application will offer more reads than write operations. I also need daily backups and raid 1 storage. Is there a reliable and economical hosting company that would provide this? Additional Question: If there is a easy way to host MS SQL on Amazon EC2 service, it will be preferable.

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• New CodePlex Project&ndash;SPDeployRetract

  - by PointsToShare

  I have just finished a new CodePlex project named SPDeployRetract. This is a sophisticated PowerShell script that allows you to to deploy solutions and InfoPath forms with ease. It is especially beneficial because once you set up the instructions in the xml input, you can repeat the process in farm after farm without error. The script also allows for easy retraction. You may always retract the last deployment by setting the instructions to do so. This is possible because every action taken is recorded and old versions of each WSP are backed up for redeployment. Look it up in: http://spdeployretract.codeplex.com/ That’s all Folks!!

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• Good Compression for Slow-mo Video

  - by marienbad

  What's the best way to deliver super slow-motion video to the browser? This seems to me to be a special case, because with super slow-mo video (such as 10,000 frames per second) the visual difference from frame to frame is minimal. As such, it's easy to compress highly. Please suggest codecs, as well as encoding software, backend software, software configuration tips, and services like youtube. My goal is to get about 100 frames of QVGA video to the browser in 500KB. By the way, remember that Radiohead In Rainbows site?

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• I want to fix a bug. Where do I start?

  - by Ingo Gerth

  Although I am not a professional programmer, I have written a program or two. Yet, nowadays every engineer and scientist learns to program a bit as well, and as such I am used to writing programs in Python, C and MATLAB. Now I want to give back a bit to Ubuntu and its great folks and fix a bug! I had a look at the list of the bitesize campaign and had to find that most of them are not that easy for me to fix as I suspect they require a lot of time to get into the matter, and I do not have that. Still I discovered this one and it looks manageable and like a cool feature to me. As I have never written a patch or released a program to the wild before though, I have no idea where to start. What should be my first step to tackle that problem? Bottom line: Where and how do I start fixing that guy?

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• XNA- Texturing problem, exporting model

  - by user1806687

  How,can I disable coloring when texture is applied, because right now the texture is being colored over. foreach (BasicEffect effect in mesh.Effects) { effect.TextureEnabled = textureApplied; if(textureApplied) effect.Texture = Texture2D.FromStream(GraphicsDevice,System.IO.File.OpenRead(texturePath)); else { effect.DiffuseColor = ti.DiffuseColor; effect.EmissiveColor = ti.EmissiveColor; } ... } mesh.Draw(); Also, is there any easy way for xna to export models? Or do I have to write my own?

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• How do I control Front and Back volume independently with cloned stereo signal

  - by someguy1984

  hello I have my 7.1 soundcard set to stereo and plugged in two stereo thingies (a. my desktop speakers b. my stereo) to the front respectively rear plug. Now I would like to an easy way to mute/volume control them independently - gui if possible. If I set my soundcard to 4.0, the pulse audio mixer gives me sliders for front and back but the problem is that's the input signal. so if i mute the front there and I'm listening to stereo everything remains silent. But what I'd have liked in that scenario would be the front to be silent and the back playing the full stereo signal. Is there a way to do that or something similar?

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• How do I share my jQuery plugin with the world?

  - by Billy Moon

  I made a plugin for jQuery, which I think is quite useful. It combines an animated colours plugin with an easings plugin, and adds a completely new feature of being able to refer to colours numerically (more useful in hex notation, so 0xff00cc for example) and therefore manipulate them mathematically more easily. I created a repository on github, and it sits there, nobody looks at it. Mostly, I would like people to look at it, use it, and improve it, so I can use the improvements and so on. I think this idea of numerically manipulating colors could be interesting. It makes it easy to change the hue without changing the saturation for example. Combined with animated colors, I think something interesting could be done, but I don't know what exactly. How do I let people know it (or any other project) is there..? I was going to post it on http://plugins.jquery.com which is currently down. Are there any other outlets for this kind of code?

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• Finish long directory name with tab problem

  - by user1880405

  I have simple problem that I have to long directories which I want to cd into, but I would like to know easy way. mosquito@mosquito-K56CB:~/Downloads$ ls | grep Guns Guns n' Roses - Appetite for Destruction (Japanese Edition) 1987 Guns n' Roses - Use Your Illusion I 1991 Of course I can just copy the name and put it like this: cd "Guns n' Roses - Appetite for Destruction (Japanese Edition) 1987" But why when I write cd Guns then tab, it finishes line into: cd Guns\ n\'\ Roses\ -\ then by my understanding I should just start writing App.. with tab and it should finish whole name, but it does not. And hitting tab twice does not show me anything either. What I am missing here?

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• Wordpress Multisite Network installation and dev questions

  - by Daitya

  Please go easy on me. I'm a clutzy dinosaur. I currently have a large, unwieldy website hand-coded in html/css with php includes. It currently has a single WP installation in a subdirectory. The plan is to reorganize, and I want to use WP as the CMS and incorporate 3 WP blogs for 3 subdomains. Ideally, would like to create a WP multisite network to allow for further expansion and to save admin trouble. I just want to confirm that if I install WP in the root directory and create 3 blogs (in subdomains), does this mean my website's home page is the mother blog's index.php? Essentially, I will have created 4 blogs - mother at root and 3 children in subdomains? How to set this up on my Mac (OSX 10.5.8) running MAMP for development? And then how to migrate to server without breaking?

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• Is an 'if password == XXXXXXX' enough for minimum security?

  - by Prof Plum

  If I create a login for an app that has middle to low security risk (in other words, its not a banking app or anything), is it acceptable for me to verify a password entered by the user by just saying something like: if(enteredPassword == verifiedPassword) SendToRestrictedArea(); else DisplayPasswordUnknownMessage(); It seems to easy to be effective, but I certainly would not mind if that was all that was required. Is a simple check on username/password combo enough? Update: The particular project happens to be a web service, the verification is entirely server side, and it is not open-source. Does the domain change how you would deal with this?

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• Need an engine for MMO mockup

  - by Kayle

  What I don't need is an MMORPG engine, at the moment. What I do need is a flexible easy-to-use engine that I can make a mock-up with. I don't need support for more than 10 players in an instance, so any multiplayer platform is probably fine. I need an engine with which I can create the following core features: Waves of simple AI enemies that have specific objectives (move to point A, destroy target, move to point B). The units present can be between 50-200 in number. An over-the-shoulder view and the ability to control a team of 3 (like Mass Effect or the latest Dragon Age) Functioning inventory system Right now, all I can really think of is Unreal or Source. Any other suggestions? Again, this is a proving mock-up, not an actual MMO. I'm not terribly worried about the visual aspects as we just want to test mechanics. Note: Can write some scripts in Python, Ruby, or Lua, if necessary.

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• Free Pluralsight Videos for this week

  - by TATWORTH

  Pluralsight have issued two free videoshttp://blog.pluralsight.com/2012/09/05/video-end-the-global-pollution-crisis-in-javascript/http://blog.pluralsight.com/2012/08/31/video-fake-it-until-you-make-it-with-fakeiteasy/Their exact words were: Free Videos this Week End the Global Pollution Crisis... In Javascript Too many globally scoped variables and functions can make Javascript code difficult to work with, particularly on large projects. See how to simulate the concept of namespaces using objects. Fake it Until You Make It with FakeItEasy FakeItEasy is a .NET framework for easily creating mock objects in tests. See how easy it is to FakeItEasy with complex nested hierarchies.

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