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• Managing Files/Folder in Content Repositories or File Systems with Oracle ADF and WebCenter

  - by Shay Shmeltzer

  One more entry in a set of entries (1,2,3) about the capabilities that WebCenter adds to ADF applications. WebCenter is basically the new Portal framework in the Oracle stack - and one key thing that portals do is work with content, allowing you to compose and publish content from files as well as save and store content. In this demo you'll see how using a set of taskflows provided by WebCenter you can add a file management, creation and viewing capabilities to a regular ADF application. To try this out you don't need any fancy content management system - we'll just use your file system for now. All you need is the WebCenter extension installed in JDeveloper, and then you can follow the demo on your own JDeveloper instance. You'll define a connection to your content repository you'll be able to add a bunch of pre-built WebCenter taskflows into your page. And suddenly you can upload/download/create and view document directly from your applicaiton. Check it out:

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• Is SVN out of style?

  - by jitbit

  It's been only several years since I migrated from Visual Source Safe to SVN. And SVN for me is still kinda "WOW! I can do so many things! SVN is so cool!" But many people around me keep saying "SVN? Really? Meh..." And there's so many of them that I'm worried. Should I move my team to Git / Mercurial or some other fancy thing? I know I sound ridiculous and the obvious answer would be "stay with what works for YOU". SVN does work for me... But every time I create a new project in my repository I keep asking myself - may be this was the time to move? So... Is SVN really that bad? Do I miss a huge opportunity by sticking with it?

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• In centralized version control, is it always good to update often?

  - by janos

  Assuming that: You are in a team developing some software. Your team is using centralized version control in the development process. You are working on a new feature which will surely take several days to complete, and you won't be able to commit before that because it would break the build. Your team members commit something every day that affects some of the files you're working with for your fancy new feature. Since this is centralized version control, you will have to update your local checkout at some point: at least once right before committing the new feature. If you update only once right before your commit, then there might be a lot of conflicts due to the many other changes by your teammates, which could be a world of pain to resolve all at once. Or, you could update often, and even if there are a few conflicts to resolve day by day, it should be easier to do, little by little. Can we say that it is always a good idea to update often?

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• What do developers want to learn at their next startup?

  - by William Pietri

  As a developer, i know how much I like learning new stuff. Now that I'm hiring developers for my startup, I know I can't compete with Google's zillion-dollar bonuses and fancy cafeterias, but we are rich with opportunities for curious people to learn. I want to set things up to support that. So if you're a developer likely to join a startup, what do you want to learn? Product things? Business things? User research, design, or tech ops things? Or if it's more technical learning you're after, do you want to go deeper in what you know (e.g., back end learning back end) or cross-train (e.g., front end learning back end)? Or is there something else entirely?

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• Is it possible to construct a cube with less than 24 vertices

  - by Telanor

  I have a cube-based world like minecraft and I'm wondering if there's a way to construct a cube with less than 24 vertices so I can reduce memory usage. It doesn't seem possible to me for 2 reasons: the normals wouldn't come out right and per-face textures wouldn't work. Is this the case or am I wrong? Maybe there's some fancy new dx11 tech that can help? Edit: Just to clarify, I have 2 requirements: I need surface normals for each cube face in order to do proper lighting and I need a way to address a different indexes in a texture array for each cube face

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• introducing automated testing without steep learning curve

  - by esther h

  We're a group of 4 developers on a ajax/mysql/php web application. 2 of us end up focusing most of our efforts on testing the application, as it is time-consuming, instead of actually coding. When I say testing, I mean opening screens and testing links, making sure nothing is broken and the data is correct. I understand there are test frameworks out there which can automate this kind of testing for you, but I am not familiar with any of them (neither is anyone on the team), or the fancy jargon (is it test-driven? behavior-driven? acceptance testing?) So, we're looking to slowly incorporate automated testing. We're all programmers, so it doesn't have to be super-simple. But we don't want something that will take a week to learn... And it has to match our php/ajax platform... What do you recommend?

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• Best keyboard to use with RollerMouse

  - by jrdioko

  I recently purchased a RollerMouse, which seems like an excellent way to eliminate pain caused by mousing. My question is: what good keyboard can other programmers recommend that would work well with it. I currently have a Microsoft ergonomic keyboard, but the curve and large wrist rest make it hard to use with the RollerMouse. By "good", I mean: Works with the RollerMouse (no wrist rest) Ergonomic (a slight curve or other features designed to be easy on your wrists/arms) Good for programming (that would be its primary use, no need for fancy media buttons or anything like that) Suggestions?

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• How can I create a dynamic site that is still search-bot friendly?

  - by zuko

  If I want to have a slide effect between pages. You click a link, it is loaded off to the side and then slides in (pushing the old page off the other side). I can imagine using jQuery to do the PHP and the effects... but how do I do something like this that gracefully degrades for users without Javascript, including bots? Possibly more problematic: what if I wanted to have a sort of mural background across the site, perhaps with a parallax scrolling effect, and sliding to other pages reveals more of the, possibly giant image? Again, I can imagine how to do this with lots of fancy jQuery and PHP but it would heavily rely on those. How can I gracefully degrade in a situation like that? Any pointers, articles or books would be greatly appreciated. I keep trying to search for answers but I just get a lot of "theory"-based, unhelpful blogs.

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• Excel 2013 Data Explorer and GeoFlow make 3-D maps quick and easy

  - by John Paul Cook

  Excel add-ins Data Explorer and GeoFlow work well together, mainly because they just work. Simple, fast, and powerful. I started Excel 2013, used Data Explorer to search for, examine, and then download latitude-longitude data and finally used GeoFlow to plot an interactive 3-D visualization. I didn’t use any fancy Excel commands and the entire process took less than 3 minutes. You can download the GeoFlow preview from here . It can also be used with Office 365. Start by clicking the DATA EXPLORER...(read more)

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• Allow any arguments for a given command with sudo

  - by Mark L

  I have the following sudo config entry which I added via sudo visudo: mark ALL = NOPASSWD: /usr/bin/lxc-ls* I can run lxc-ls with my user fine but I can't append any parameters without it demanding I prefix the command with sudo. $ whoami mark $ lxc-ls test-container $ lxc-ls --fancy lxc-ls: error: You must be root to access advanced container properties. Try running: sudo /usr/bin/lxc-ls Any idea how I can edit via sudo visudo to allow for any argument after the command? I don't want to prefix the command with sudo as I'm using a python library to execute the command and it's being funny about sudo prefixes.

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• Recommended flexible website solution?

  - by Omega

  My site has a MyBB forums installation, and that is pretty much all I need. Forums. However, I need a homepage and a couple other static pages, for showing relevant information, links, etc. I don't need something fancy, all I need is something very flexible regarding theme and style editing, and just a couple simple modules, like public polls. That's all. I am very graphical, and I am looking for something to let me edit pretty much every aspect of the site. These are static pages, mainly, so I don't need something very complex. Some people tell me to use Dreamweaver, but quite honestly, that is not what I am looking for, even thought it does offer a lot of flexibility. I want something like, you know, Drupal or.. some other simple, deeply-editable in terms of graphics and style web platform. What would you recommend to me? Thank you.

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• “Can You See Me Think?”

  - by andyleonard

  Introduction This post is the fifty-seventh part of a ramble-rant about the software business. The current posts in this series can be found on the series landing page . A Story… Once upon a time I was a manufacturing systems integrator. That’s a fancy description of a person who designs and builds machine control systems. I was asked to replace a control system and given a tight timeline to accomplish the work. My engineering spidey-senses were tingling, but there were bills to pay and the promise...(read more)

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• Where to start for writing a simple java IDE?

  - by AedonEtLIRA

  I would like to start working on my own custom IDE. The biggest reason I want to work on the IDE is to help me gain an even greater, more intimate understanding of java (and other languages I add into it.) I don't want to do anything super fancy or revolutionary, I'd be happy if I could create something as compact as the BlueJ IDE I used in high school and be content. I have a few question on the specifics of the task that I hope I can get cleared up before I start investing time in this: Is there anything I should be aware of when writing the parser? Does anyone have any pointers that I should be aware of; pitfalls, brick walls or other constraints?

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• Drop in service for account management, authentication, identity?

  - by Mike Repass

  I'm building an Android app and associated set of web services for uploading/downloading data. I need a basic (no frills) solution for account management (register, login, logout, verify credentials/token). What open source / third party solutions exist for this scenario? I need: create a new account db based on a salt simple web service to create a new account simple web service to authenticate supplied credentials and return some sort of token That's it, I can get by without 'fancy' email activation or password reset for the time being. Are there off-the-shelf components for this? Should I just use a 'blank' django or rails app to get this done? Seems crazy for everyone to be doing CREATE TABLE user_accounts ... Thoughts? Thank you.

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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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• Can minecraft support an asymmetrical mesh?

  - by Qwaar

  So in a bout of fancy I have decided I want to play as a Zaku II from gundam, and was saddened that player skins must be symmetrical. Then I remembered my friends mod that let him play as a MLP pony, and another one that let you shapeshift into mobs. So I decided I could just butcher a player model mesh and slap on the shoulder spike and shield, slap a Zaku skin I found on it, port the colors over onto more texture for the shoulder portions, and call it a day once I added it to the shiftable list, before butchering a gun mod to turn a gun into a ZMP-78. Before I get started on this though, I need to know if minecraft will support an asymmetrical mesh.

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• Where to start for writing a simple java IDE?

  - by AedonEtLIRA

  I would like to start working on my own custom IDE. The biggest reason I want to work on the IDE is to help me gain an even greater, more intimate understanding of java (and other languages I add into it.) I don't want to do anything super fancy or revolutionary, I'd be happy if I could create something as compact as the BlueJ IDE I used in high school and be content. I have a few question on the specifics of the task that I hope I can get cleared up before I start investing time in this: Is there anything I should be aware of when writing the parser? Does anyone have any pointers that I should be aware of; pitfalls, brick walls or other constraints?

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• looking for advice regarding a free shopping cart solution [on hold]

  - by thirdCharm

  I am building a very small e-commerce site, and I need a free and simple to use/deploy/integrate shopping cart that I can add into my website in order to be able to sell a FEW items. I want the shopping cart to be an add-on in my website, nothing fancy.Ideally when a person clicks on the "Add to cart" button, they will be redirected to the shopping cart, which will then handle different types of payment methods, and everything else you would expect from a fully working shopping cart. I am currently developing my website using the following tools/frameworks: SQL Server 2008 R2 Visual Studio 2010 (ASP.NET 4.5 - C#) HTML5,CSS3, and JS. I am interested in also using PayPal alongside my shopping cart. Help of any kind is appreciated!!

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• Given two sets of DNA, what does it take to computationally "grow" that person from a fertilised egg and see what they become? [closed]

  - by Nicholas Hill

  My question is essentially entirely in the title, but let me add some points to prevent some "why on earth would you want to do that" sort of answers: This is more of a mind experiment than an attempt to implement real software. For fun. Don't worry about computational speed or the number of available memory bytes. Computers get faster and better all of the time. Imagine we have two data files: Mother.dna and Father.dna. What else would be required? (Bonus point for someone who tells me approx how many GB each file will be, and if the size of the files are exactly the same number of bytes for everyone alive on Earth!) There would ideally need to be a way to see what the egg becomes as it becomes a human adult. If you fancy, feel free to outline the design. I am initially thinking that there'd need to be some sort of volumetric voxel-based 3D environment for simulation purposes.

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• Representing timezone list

  - by StasM

  I have a web application that allows the user to choose the timezone from the list. The list is very long (pretty much all CLDR-supported timezones). So the question is - how should I represent it? How should it be sorted - alphabetically or by timezone offset? What information should each item contain - offset, location, long name (like Europe/Zurich) or short name (like CET)? Should I display information about DST or only current offset? Let's say I can't right now do something like fancy maps OS configuration dialogs display, so the list is the only option. However I want to make the list look nice. Any best practices how it's done?

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• Game Development In C Only. Is it possible?

  - by Ishan Sharma

  I am a first year college student in India and want to make a small game as a this semester project. I am quite good at C and am learning it rapidly but I wanted to ask if developing a game entirely in C (no C++ or C#) I'd love to use these but for college projects, we have strict requirements of using only C. What I am looking for is a simple top view driving game. It won't have anything fancy and even the visual things will be powered by simple characters. For example, user controlled car can be represented by ¦ and edges of road by series of |'s. What do you think?

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• How do I count Internal Logical Files (ILF) and External Inputs (EI) for a dynamic form entry page?

  - by DmytroL

  Assuming I have an applicant information entry screen, the number and types of fields on which can be defined by the system administrator, how do I go about counting the number of Internal Logical Files (ILFs) and Data Element Types (DETs) for the related data functions? So far I have come up with something like this: ILF #1 (control information): Field Metadata, 1 RET, ~3 DET (name, type, mandatory) ILF #2 (business data): Applicant Data, most likely 1 RET, but how many DET? Of course I could count it as 2 DET (Field ref, Value), but I am not sure that would be correct And when it comes to an External Input (EI), say, "Add New Applicant", things become even more complicated, because the number of DET corresponding to the user-editable fields is totally dependent on the control information in ILF #1, and I am out of ideas here... Anyone fancy to help with that? Thanks in advance!

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• Do I lose/gain performance for discarding pixels even if I don't use depth testing?

  - by Gajoo

  When I first searched for discard instruction, I've found experts saying using discard will result in performance drain. They said discarding pixels will break GPU's ability to use zBuffer properly because GPU have to first run Fragment shader for both objects to check if the one nearer to camera is discarded or not. For a 2D game I'm currently working on, I've disabled both depth-test and depth-write. I'm drawing all objects sorted by their depth and that's all, no need for GPU to do fancy things. now I'm wondering is it still bad if I discard pixels in my fragment shader?

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• Processing a stream. Must layers be violated?

  - by Lord Tydus

  Theoretical situation: One trillion foobars are stored in a text file (no fancy databases). Each foobar must have some business logic executed on it. A set of 1 trillion will not fit in memory so the data layer cannot return a big set to the business layer. Instead they are to be streamed in 1 foobar at a time, and have business logic execute on 1 foobar at a time. The stream must be closed when finished. In order for the stream to be closed the business layer must close the stream (a data operation detail), thus violating the separation of concerns. Is it possible to incrementally process data without violating layers?

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• How to Automatically run two commands after login?

  - by Covi

  I have these two commands that I need to manually run every time after login: autossh -M 2000 -N -f -q -D 127.0.0.1:7070 [email protected] and sudo mkdir /media/C sudo mount /dev/sda2 /media/C I'd like to make them automatically run every time I boot and login to my computer. I'm currently using 10.04LTS. BTW, I only vaguely know what init.d or runlevel mean. But I still prefer to know a command-line based way to achieve this, not a fancy GUI way. Also, the autossh will only succeed after Ubuntu automatically detect and connect to my network, so should we let it retry infinitely until successfully executed? Thank you!

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