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• 2D platformers: why make the physics dependent on the framerate?

  - by Archagon

  "Super Meat Boy" is a difficult platformer that recently came out for PC, requiring exceptional control and pixel-perfect jumping. The physics code in the game is dependent on the framerate, which is locked to 60fps; this means that if your computer can't run the game at full speed, the physics will go insane, causing (among other things) your character to run slower and fall through the ground. Furthermore, if vsync is off, the game runs extremely fast. Could those experienced with 2D game programming help explain why the game was coded this way? Wouldn't a physics loop running at a constant rate be a better solution? (Actually, I think a physics loop is used for parts of the game, since some of the entities continue to move normally regardless of the framerate. Your character, on the other hand, runs exactly [fps/60] as fast.) What bothers me about this implementation is the loss of abstraction between the game engine and the graphics rendering, which depends on system-specific things like the monitor, graphics card, and CPU. If, for whatever reason, your computer can't handle vsync, or can't run the game at exactly 60fps, it'll break spectacularly. Why should the rendering step in any way influence the physics calculations? (Most games nowadays would either slow down the game or skip frames.) On the other hand, I understand that old-school platformers on the NES and SNES depended on a fixed framerate for much of their control and physics. Why is this, and would it be possible to create a patformer in that vein without having the framerate dependency? Is there necessarily a loss of precision if you separate the graphics rendering from the rest of the engine? Thank you, and sorry if the question was confusing.

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• CodePlex Daily Summary for Sunday, May 27, 2012

  CodePlex Daily Summary for Sunday, May 27, 2012Popular ReleasesMS CRM Rich Text box: MS CRM Rich Text box: This release contains the final JavaScript for this plug-in. It is tested and verified. Even if someone is unable to use it, can contact me. Suggestions and bug-notifications are always most welcome.Nivo Slider Web Part SharePoint 2010: Nivo Slider Web Part WSP: Web Part encapsulating nivo slider jquery web part. Download the wsp for one click install. Edit the property of the web part to point to any image library and all done. Web part includes jQuery and nivo jquery library. No configuration is required. This web part is a SharePoint 2010 farm solution. Scope for installation is site collection.iPDC - Free Phasor Data Concentrator: iPDC-v1.3.0: For more info see the iPDC-v1.3.0-Release_Notes document. Changes in iPDC-1.3 : Now iPDC has a centralized file structure. Only a single file for each iPDC and that will store with iPDC-ID. File structure will be explained in release notes document. A setup file for a iPDC will contains the information about: iPDC Server, Connected Source Devices, Connected Destination Devices, and finally configuration frames of sources. Because of this single Setup File previously generated ....Net Code Samples: Code Samples: Code samples (SLNs).Tweetz - Windows Twitter Client Gadget: Tweetz 3.1.5.4: Changed from screen names to regular names in all timelines except search Minor correction in German translation Updated Italian translationSubExtractor: Release 1027: Fix: out-of-memory exception when reading DVDs with very large (over 1GB) cells Fix: AltGr key toggling Italics during OCR Feature: use centered alignment SSA tag for centered text in the upper part of the frame Feature: increased number of subtitle tracks visible in Choose Subtitles step listbox Feature: allow change of palette for entire movieLINQ_Koans: LinqKoans v.02: Cleaned up a bitAutoFixture: 2.11.1: This is an automatically published release created from the latest successful build. Versioning is based on Semantic Versioning. Read more here: http://blog.ploeh.dk/2011/09/06/AutoFixtureGoesContinuousDeliveryWithSemanticVersioning.aspxBlueGem: BlueGem-v1.B Source: Description This is the source of BlueGem -v1.B.XML Schema Documenter: 1.9.4.0: Compatibility fixes for SHFB 1.9.4.0 and Visual Studio 11 Third-Party References Reference Required Used For Sandcastle Help File Builder (version 1.9.4.0) Yes Underlying platform Windows Installer XML (WiX) v3.6 RC0 No Only required to build source code ZXMAK2: Version 2.6.2.1: - fix contended timings for ULA 48/128 early/late - small refactoring for ULA code - fix mistake in timing for CBXX opcodes (thanks to Pegaz for report) - save early/late flag when saving to SZX (works with original ULA's 48/128 only) Use ZXMAK-SPRINTER-2621 package to get emulator with SPRINTER files (select Sprinter model from VM->Settings->Wizard)totalem: version 2012.05.25.1: Beta version speed improvements memory usage improvements smoothness list scrollingJayData - The cross-platform HTML5 data-management library for JavaScript: JayData 1.0 RC1 Refresh 2: JayData is a unified data access library for JavaScript developers to query and update data from different sources like webSQL, indexedDB, OData, Facebook or YQL. See it in action in this 6 minutes video: http://www.youtube.com/watch?v=LlJHgj1y0CU RC1 R2 Release highlights Knockout.js integrationUsing the Knockout.js module, your UI can be automatically refreshed when the data model changes, so you can develop the front-end of your data manager app even faster. Querying 1:N relations in W...Christoc's DotNetNuke Module Development Template: 00.00.08 for DNN6: BEFORE USE YOU need to install the MSBuild Community Tasks available from http://msbuildtasks.tigris.org For best results you should configure your development environment as described in this blog post Then read this latest blog post about customizing and using these custom templates. Installation is simple To use this template place the ZIP (not extracted) file in your My Documents\Visual Studio 2010\Templates\ProjectTemplates\Visual C#\Web OR for VB My Documents\Visual Studio 2010\Te...Microsoft Ajax Minifier: Microsoft Ajax Minifier 4.53: fix issue #18106, where member operators on numeric literals caused the member part to be duplicated when not minifying numeric literals ADD NEW FEATURE: ability to create source map files! The first mapfile format to be supported is the Script# format. Use the new -map filename switch to create map files when building your sources.myManga: Initial Release - Version 1.0.0.1 - BETA: Leave a Review! This is the initial release of myManga. Please report any bugs. NOTE: There is a bug with MangaReader.net where images are reported 403 Forbidden, this is NOT the fault of myManga but, myManga will through an error and will not download the image.BlackJumboDog: Ver5.6.3: 2012.05.22 Ver5.6.3 　(1) HTTP????????、ftp://??????????????????????LogicCircuit: LogicCircuit 2.12.5.22: Logic Circuit - is educational software for designing and simulating logic circuits. Intuitive graphical user interface, allows you to create unrestricted circuit hierarchy with multi bit buses, debug circuits behavior with oscilloscope, and navigate running circuits hierarchy. Changes of this versionThis release is fixing start up issue.Orchard Project: Orchard 1.4.2: This is a service release to address 1.4 and 1.4.1 bugs. Please read our release notes for Orchard 1.4.2: http://docs.orchardproject.net/Documentation/Orchard-1-4-Release-NotesSharePoint Euro 2012 - UEFA European Football Predictor: havivi.euro2012.wsp (1.0): New fetures:View other users predictions Hide/Show background image (web part property) Installing SharePoint Euro 2012 PredictorSharePoint Euro 2012 Predictor has been developed as a SharePoint Sandbox solution to support SharePoint Online (Office 365) Download the solution havivi.euro2012.wsp from the download page: Downloads Upload this solution to your Site Collection via the solutions area. Click on Activate to make the web parts in the solution available for use in the Site C...New ProjectsAdvStopWatch: This is an wpf project to build a stop watchBlueGem: BlueGem is a simple Rich Text Editor. It also has a system resource monitor.Db4o Extensions: Db4o Extensions is a .NET library to ease database routines like creating composite keys, defining deletion behavior, data validation and transparent persistance.Financial Advisor Toolbox: An attempt to build a set of tools that can be used by a Financial Advisor to help automate some of their daily tasks. The initial release will aim to include "client management" to track clients and their financial profile. ImpresionesJL: This is a great project!K-Dock: K-Dock is a basic WPF library built to allow developers to implement a docking system in their applications. Written in Visual Basic. mouse: ignoreopencv: a personal git mirror for opencvOpenLaunch: OpenLaunch is a new way to make your companies' software more popular. By using a simple framework, developers can integrate their software into OpenLaunch by either their existing project, or by a new project. All help on this project is greatly appreciated, and we are looking for a web developer to create a web interface to the store.Smart Setup: Smart Setup is a PowerShell-based deployment program with using a XML document. It is very flexible with supporting multiple extensions and different configurations for different environment. It's smart and light.UusAhi: Teeme jälle ahju!Win7 Style TreeView: A TreeView with win7 styleWindows Phone 7 Feedback Control: Windows Phone user control for sending feedback directly from the applicationWindows Phone SignalR Helper: Windows Phone SignalR Helper makes it easier for WPDevs to leverage SignalR in making connected real-time Windows Phone applications. Various modes of communication between phone and server will be stubbed out - like real-time Mapping, Chat, Stocks, Game Scores, Object Sync etc.; Re-use or extend to make it work for your own needs. Iterative feature addition planned. Hope this helps!

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• Freescale One Box Unboxing (then installing Java SE Embedded technology)

  - by hinkmond

  So, I get a FedEx delivery the other day... "What cool device could be inside this FedEx Overnight Express Large Box?" I was wondering... Could it be a new Linux/ARM target device board, faster than a Raspberry Pi and better than a BeagleBone Black??? Why, yes! Yes, it was a Linux/ARM target device board, faster than anything around! It was a Freescale i.MX6 Sabre Smart Device Board (SDB)! Cool... Quad Core ARM Cortex A9 1GHz with 1GB of RAM. So, cool... I installed the Freescale One Box OpenWRT Linux image onto its SD card and booted it up into Linux. But, wait! One thing was missing... What was it? What could be missing? Why, it had no Java SE Embedded installed on it yet, of course! So, I went to the JDK 7u45 download link. Clicked on "Accept License Agreement", and clicked on "jdk-7u45-linux-arm-vfp-sflt.tar.gz", installed the bad boy, and all was good. Java SE Embedded 7u45 on a Freescale One Box. Nice... Hinkmond

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• Visually and audibly unambiguous subset of the Latin alphabet?

  - by elliot42

  Imagine you give someone a card with the code "5SBDO0" on it. In some fonts, the letter "S" is difficult to visually distinguish from the number five, (as with number zero and letter "O"). Reading the code out loud, it might be difficult to distinguish "B" from "D", necessitating saying "B as in boy," "D as in dog," or using a "phonetic alphabet" instead. What's the biggest subset of letters and numbers that will, in most cases, both look unambiguous visually and sound unambiguous when read aloud? Background: We want to generate a short string that can encode as many values as possible while still being easy to communicate. Imagine you have a 6-character string, "123456". In base 10 this can encode 10^6 values. In hex "1B23DF" you can encode 16^6 values in the same number of characters, but this can sound ambiguous when read aloud. ("B" vs. "D") Likewise for any string of N characters, you get (size of alphabet)^N values. The string is limited to a length of about six characters, due to wanting to fit easily within the capacity of human working memory capacity. Thus to find the max number of values we can encode, we need to find that largest unambiguous set of letters/numbers. There's no reason we can't consider the letters G-Z, and some common punctuation, but I don't want to have to go manually pairwise compare "does G sound like A?", "does G sound like B?", "does G sound like C" myself. As we know this would be O(n^2) linguistic work to do =)...

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• Mario and Luigi’s Pick-up Game of Baseball – Choosing Teams [Video]

  - by Asian Angel

  Mario and Luigi are choosing players for a pick-up game of baseball and Chargin’ Chuck is ready to go. Will Mario or Luigi pick him for their teams early on or will poor Chuck be the last one chosen? Note: Contains slightly inappropriate language. Dorkly Bits: Chargin’ Chuck Gets Picked Last [via Geeks are Sexy] HTG Explains: What’s the Difference Between the Windows 7 HomeGroups and XP-style Networking?Internet Explorer 9 Released: Here’s What You Need To KnowHTG Explains: How Does Email Work?

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• Connecting to Magento Web Services with Java

  - by kerry

  I was in the unenviable position of needing to connect to Magento, a PHP ecommerce platform, web services using Java.  It was kind of difficult to get the classes generated from the WSDL so I figured I would throw the results up on my github account for any other poor sap in a similar position. First, pull down the project using git: git clone git://github.com/webdevwilson/magento-java.git and build it with maven: mvn install Here is a quick example of how to pull an order using the generated classes: MagentoServiceLocator serviceLocator = new MagentoServiceLocator(); String url = "http://domain.com/index.php/api/v2_soap"; Mage_Api_Model_Server_V2_HandlerPortType port = serviceLocator.getMage_Api_Model_Server_V2_HandlerPort(url); String sessionId = port.login("username", "key"); SalesOrderEntity salesOrder = port.salesOrderInfo(sessionId, orderId); I also have some wrapper code in there that makes it a little easier to call the API. Checkout the project at https://github.com/webdevwilson/magento-java There is another option. it’s called Magja and it is located at google code.

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• CQRS - Benefits

  - by Dylan Smith

  Thanks to all the comments and feedback from the last post I think I have a better understanding now of the benefits of CQRS (separate from the benefits of Event Sourcing). I’m going to try and sum it up here, and point out some areas where I could still use some advice: CQRS Benefits Sounds like the primary benefit of CQRS as an architecture is it allows you to create a simpler domain model by sucking out everything related to queries. I can definitely see the benefit to this, in general the domain logic related to commands is the high-value behavior in the software, but the logic required to service the queries would add a lot of low-value “noise” to the domain model that would dilute the high-value (command) behavior – sorting, paging, filtering, pre-fetch paths, etc. Also the most appropriate domain structure for implementing commands might not be the most optimal for implementing queries. To paraphrase Greg, this usually results in a domain model that is mediocre at both, piss-poor at one, or more likely piss-poor at both commands and queries. Not only will you be able to simplify your domain model by pulling out all the query logic, but at least a handful of commands in most systems will probably be “pass-though” type commands with little to no logic that just generate events. If these can be implemented directly in the command-handler and never touch the domain model, this allows you to slim down the domain model even more. Also, if you were to do event sourcing without CQRS, you no longer have a database containing the current state (only the domain model would) which makes it difficult (or impossible) to support ad-hoc querying and/or reporting that is common in most business software. Of course CQRS provides some great scalability benefits, not only scalability but I have to assume that it provides extremely low latency for most operations, especially if you have an asynchronous event bus. I know Greg says that you get a 3x scaling (Commands, Queries, Client) of your ability to perform parallel development, but IMHO, it seems like it only provides 1.5x scaling since even without CQRS you’re going to have your client loosely coupled to your domain - which is still a great benefit to be able to realize. Questions / Concerns If all the queries against an aggregate get pulled out to the Query layer, what if the only commands for that aggregate can be handled in a “pass-through” manner with the command handler directly generating events. Is it possible to have an aggregate that isn’t modeled in the domain model? Are there any issues or downsides to this? I know in the feedback from my previous posts it was suggested that having one domain model handling both commands and queries requires implementing a lot of traversals between objects that wouldn’t be necessary if it was only servicing commands. My question is, do you include traversals in your domain model based on the needs of the code, or based on the conceptual domain model? If none of my Commands require a Customer.Orders traversal, but the conceptual domain includes the concept of a set of orders belonging to a customer – should I model that in my domain model or not? I like the idea of using the Query side of the architecture as a place to put junior devs where the risk of them screwing something up has minimal impact. But I’m not sold on the idea that you can actually outsource it. Like I said in one of my comments on my previous post, the code to handle a query and generate DTO’s is going to be dead simple, but the code to process events and apply them to the tables on the query side is going to require a significant amount of domain knowledge to know which events to listen for to update each of the de-normalized tables (and what changes need to be made when each event is processed). I don’t know about everybody else, but having Indian/Russian/whatever outsourced developers have to do anything that requires significant domain knowledge has never been successful in my experience. And if you need to spec out for each new query which events to listen to and what to do with each one, well that’s probably going to be just as much work to document as it would be to just implement it. Greg made the point in a comment that doing an aggregate query like “Total Sales By Customer” is going to be inefficient if you use event sourcing but not CQRS. I don’t understand why that would be the case. I imagine in that case you’d simply have a method/property on the Customer object that calculated total sales for that customer by enumerating over the Orders collection. Then the application services layer would generate DTO’s off of the Customers collection that included say the CustomerID, CustomerName, TotalSales, or whatever the case may be. As long as you use a snapshotting implementation, I don’t see why that would be anymore inefficient in a DDD+Event Sourcing implementation than in a typical DDD implementation. Like I mentioned in my last post I still have some questions about query logic that haven’t been answered yet, but before I start asking those I want to make sure I have a strong grasp on what benefits CQRS provides.  My main concern with the query logic was that I know I could just toss it all into the query side, but I was concerned that I would be losing the benefits of using CQRS in the first place if I did that.  I want to elaborate more on this though with some example situations in an upcoming post.

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• dsl modem problem in ubuntu 11.10

  - by Misterious

  Earlier I used Windows 7 and the modem used to work absolutely fine. Even when it disconnected it used to reconnect automatically without any trouble. But then I installed Ubuntu 11.10 on dual boot and set up the modem connection properly but the modem now disconnects much more frequently(eariler it disconnected once in 5 hours or so and after ubuntu in 5 minutes!!). Also once disconnected it does not reconnect even when i have checked the connect automatically button. I have to restart the system to reconnect it. Also then I clean installed windows and modem works perfectly fine again. What is the reason for this and how can I solve this? I really want to use ubuntu but due to this problem I cant. Sorry for my poor English.

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• Human vs human android chess game design

  - by Plejo

  First of all I am total amateur in game development and sorry for my poor English. I want to make android human vs human chess game. So I am wondering how to design it? scenario 1: User connect to server, find opponent and send moves to server using socket, so match is running on a server side. I think this is not good idea because move should be validated on client side - or do I have to validate moves on client side? I do not think this is good solution because game is seperated. scenario 2: Using hole punching technique so server is needed only for connection between players, so game is running on android devices. which approach do you suggest? Or is there any better solution? Which server is best to use?

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• latest intel graphics driver?

  - by Anwar Shah

  I have Intel Graphics Card, which have model number GM965. It is on a Notebook, (Lenovo 3000 Y410). My Ubuntu Installation worked good until I upgraded to 12.04. It was a fresh install. The Graphics performance is poor compared to Natty, Oneiric. In the details tab of System Settings, Graphics driver is shown as "Unknown". I have upgraded the xserver-xorg-video-intel package to version 2.19.. from 2.17. But still same. So, My question is How can I install latest Intel graphics driver for my Chipset? or Is there any other method to fix the problem with graphics.

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• What's wrong with relative imports in Python?

  - by Oddthinking

  I recently upgraded versions of pylint, a popular Python style-checker. It has gone ballistic throughout my code, pointing out places where I import modules in the same package, without specifying the full package path. The new error message is W0403. W0403: Relative import %r, should be %r Used when an import relative to the package directory is detected. Example For example, if my packages are structured like this: /cake /__init__.py /icing.py /sponge.py /drink and in the sponge package I write: import icing instead of import cake.icing I will get this error. While I understand that not all Pylint messages are of equal importance, and I am not afraid to dismiss them, I don't understand why such a practice is considered a poor idea. I was hoping someone could explain the pitfalls, so I could improve my coding style rather than (as I currently plan to do) turning off this apparently spurious warning.

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• Star Sightings at MIX 10

  Hey its Vegas baby! Brad was stylin. Tim and I were a poor mans Vin Diesel and Tom Cruise. The jacket and shades actually suited Karen. Dan looked like he worked in Vegas. Ward was, well, Ward. Was it the town, the conference, or are we all just wacky developer/designer types? Ward Bell brought along his jacket, shirt and shades and of course we all just had to get into the act. (If you think this is crazy, wait til you see what Ward did to top it in our upcoming Silverlight TV video!) Yet another...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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• IBM DB2 and the “'DbProviderFactories' section can only appear once per config” error

  - by Davide Mauri

  IBM doesn’t like MS. That’s a fact. And that’s why you can get your machine.config file (!!!) corrupted if you try to install IBM DB2 data providers on your server machine. If at some point, after having installed IBM DB2 data providers your SSIS packages or SSAS cubes or SSRS Reports starts to complain that 'DbProviderFactories' section can only appear once per config you may want to check into you machine.config, located in the %runtime install path%\Config http://msdn.microsoft.com/en-us/library/ms229697%28v=vs.71%29.aspx Almost surely you’ll find a IBM DB2 Provider into an additional DbProviderFactories section all alone. Poor guy. Remove the double DBProviderFactories entry, and merge everything inside only one section DBProviderFactories and after that everything will start to work again.

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• Silverlight Cream for February 09, 2011 -- #1044

  - by Dave Campbell

  In this Issue: Vikas, Tony Champion, Peter Kuhn, Ollie Riches, Rich Griffin, Rob Eisenberg, Andrea Boschin, Rudi Grobler(-2-), Jesse Liberty, Dan Wahlin, Roberto Sonnino, Deborah Kurata. Above the Fold: Silverlight: "Silverlight double click event" Vikas WP7: "Logging in Silverlight and WP7 with MVVM Light" Tony Champion XNA: "XNA for Silverlight developers: Part 3 - Animation (transforms)" Peter Kuhn Shoutouts: Vikas deserves congratulations for passing the beta Silverlight 4 exam, but in the process he has a great list of resources to help you do the same: Exam 70-506 ( TS: Silverlight 4, Development ) From SilverlightCream.com: Silverlight double click event Vikas demonstrates 3 ways to come up with a double-click in Silverlight: Timer, Rx Framework, and Behavior with code for each. Logging in Silverlight and WP7 with MVVM Light Tony Champion is discussing logging... and since he finds himself doing it in every project, he's setting up an extensible solution he can reuse and is doing so with MVVMLight XNA for Silverlight developers: Part 3 - Animation (transforms) Peter Kuhn has part 3 of his XNA for WP7 series up at SilverlightShow. In this 3rd tutorial, Peter is discussing animation with Transformations.... remember... this is XNA! WP7Contrib: Location Push Model Ollie Riches posts from the WP7C and discusses how they provide an interface for location service by abstracting away the GeoCoordinateWatcher class and provide a clean push model using the IObservable as the return types for all variants. WP7 Contrib – When messaging becomes messy and services shine Rich Griffin pulls another post up from WP7C where he discusses swapping out using Service Styles rather than Messenger Styles... in his words "when we start getting friction trying to bend the framework api to do something that it was not really meant for its time to use something [that] solves the problem better" Herding Code 104: Rob Eisenberg on Caliburn Micro Rob Eisenberg is interviewed on the latest Herding Code, talking about his baby, Caliburn Micro, and tons of other stuff as well... just check out the list of links generated for this show. Windows Phone 7 - Part #4: The application lifecycle Andrea Boschin has part 4 of his WP7 tutorial series up at SilverlightShow... In this tutorial he does a complete run-down the the WP7 Application Life-Cycle Simple Error Reporting on WP7 Rudi Grobler has a code snippet up that, with the end-user's permission of course, emails problem reports back to you... very cool idea. Simple Error Reporting on WP7 REDUX Rudi Grobler demonstrates using the Coding4Fun toolkit to display an exception prompt to the user... and then possibly email the report to you..see Rudi's other post on that. Creating An Application Bar–Don’t Panic In his latest (number 31) WP7 From Scratch episode, Jesse Liberty takes on the ApplicationBar, and uses Blend to get the job done easier. Syncing Data with a Server using Silverlight and HTTP Polling Duplex Dan Wahlin revisits some older posts of his about Push technologies in Silverlight, and provides some great insight (and code) into Http Polling Duplex Quick WPF/Silverlight tips to make great videos of your apps Roberto Sonnino has some great tips on making awesome videos of your WPF or Silverlight app. Simple Silverlight MVVM Base Class Deborah Kurata has her take at a good MVVM base class as the subject of her latest post... good points and good code. Stay in the 'Light! Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCream Join me @ SilverlightCream | Phoenix Silverlight User Group Technorati Tags: Silverlight    Silverlight 3    Silverlight 4    Windows Phone MIX10

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• UK Connected Systems User Group - Udi Dahan Event Topic change

  - by Michael Stephenson

  Hi Just wanted to get the word out about a change to the may user group event.  Udi Dahan will present a new topic which he has not presented in the UK before.  Details below. To register for this event please refer to: http://ukconnectedsystemsusergroup.org/UpcomingEvents.aspx Title: High Availability - A Contrarian View   Abstract: Many developers are aware of the importance of high availability, critically analyzing any single points of failure in the infrastructure. Those same developers rarely give a second thought to the periods of time when a system is being upgraded. Even if all the servers are running, most systems cannot function in-between versions. Yet with the increased pace of business, users are demanding ever more frequent releases. The poor maintenance programmers and system administrators are left holding the bag long after the architecture that sealed their fate was formulated. Join Udi for some different perspectives on high availability - architecture and methodology for the real world.

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• Vitality of Product Information Management Showcased at OpenWorld 2012

  - by Mala Narasimharajan

   By Sachin Patel Can you hear the countdown clock ticking!! OpenWorld 2012 is almost here and as I write this Oracle is buzzing with fresh new ideas and solutions that will be showcased this year. What an exciting time for all of us to be in midst of a digital revolution. Whether it is Apple fans clamoring to find every new feature that has been added to the iPhone 5 or a startup launching a new digital thermostat (has anyone looked at the new one from Nest ), product information is a vital for companies to grow and compete in this cut-throat market. Customer today struggle to aggregate and enrich this product data from the myriad of systems they have in place to run their businesses and operations. Having a product information strategy is paramount to align your sales channels and operations with the most accurate and upto date product data. We have a number of sessions this year at OpenWorld where you can gain more insight into how Oracle’s next generation of Fusion Applications, in this case Fusion Product Hub can provide you with a solution to streamline and get control of your Product Master Data. Enabling Trusted Enterprise Product Data with Oracle Fusion Product HubTuesday, October 2nd 11:45 am, Moscone West 2022 Join me Sachin Patel, Director of Product Strategy and Milan Bhatia, VP of Development as we discuss how you can enable trusted product master data in your enterprise. In this session we plan to cover the challenges companies face today in mastering product data. The discussion will also include how Fusion Product Hub brings new and innovative features to empower your product data owners to create a holistic and rich product definition that can be leveraged across your enterprise. We will also be joined by Pawel Fidelus from Fideltronik an Early Adopter for Fusion Product Hub who will showcase their plans to implement Fusion Product Hub and the value it will bring to Fideltronik Multichannel Fulfillment Excellence in Direct-to-Consumer Market Thursday, October 4th, 12:45 am, Moscone West 2024 Do you have multiple order capture systems? Do you have difficulty in fulfilling orders for your customers across various channels and suppliers? Mark Carson, Director, Fusion DOO and Brad Kerr, Director, AGSS will be showcasing the Fusion Distributed Order Orchestration solution and how companies can orchestrate orders from multiple order capture systems and route them to the appropriate fulfillment system. Sachin Patel, Director Product Strategy for Product MDM will highlight the business pain points in consolidating and commercializing data from a Multi Channel Commerce point of view and how Fusion Product Hub helps in allowing you to provide a single source of truth to drive a singular and rich customer experience. Oracle Fusion Supply Chain Management: Customer Adoption and Experiences                                                Wednesday, October 3rd 10:15 am, Moscone West 2003 This is a great session to attend to learn about how Fusion Supply Chain Management and Fusion Product Hub Early Adopters, including Boeing and Fideltronik are leveraging Fusion Applications to improve their Supply Chain operations. Have a great OpenWorld and see you soon!!

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• Recommendation for a platform to teach game development to kids [closed]

  - by Moshe Kravchik

  My 11 years old son decided he want to create a Web game. He does not know much about programming and I never did any game development so I'm not the best teacher of the topic. On one hand I really want him to get into building things and doing his own game sounds perfect. So I'd like to find a way to keep him interested and progressing by himself. This means that I'm looking for a platform that is: 1. Simple for understanding and use, intuitive interface 2. Powerful 3. Good tools, preferrably free 4. Significant community for questions and tips 5. Localization - my son's English is quite poor (native Hebrew). We looked at Alice, but it was too limited in its abilities and isn't really a Web game building platform. HTML/CSS and Javascript - too low level for a kid to keep the interest. What would you recommend?

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• Relationship between TDD and Software Architecture/Design

  - by Christopher Francisco

  I'm new to TDD and have been reading the theory since applying it is more complicated than it sounds when you're learning by yourself. As far as I know, the objective is to write test cases for each requirement and run the test so it fails (to prevent a false positive). Afterward, you should write the minimum amount of code that can pass the test and move to the next one. That being said, is it true that you get a fast development, but what about the code itself? this theory makes me think you are not considering things like abstraction, delegation of responsibilities, design patterns, architecture and others since you're just writing "the minimum amount of code that can pass the test". I know I'm probably wrong because if this were true, we'd have a lot of crappy developers with poor software architecture and documentation so I'm asking for a guide here, what's the relationship between TDD and Software Architecture/Design?

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• What You Said: Do You Use the Command Line?

  - by Jason Fitzpatrick

  Earlier this week we asked you to sound off with your love (or lack there of) for the command line. You sounded off in force and now we’re back with a comment roundup. It turns out you all pretty much love the command line with that love ranging from not even liking Graphic User Interfaces (GUIs) to using the command line to get serious work done but having a long standing affair with your OS’s GUI. Many of you lamented the poor command line implementation in Windows—especially after you’d had experience with other operation systems. Mike writes: Of course. Some things are easier that was. Like ping and ipconfig. With a strong Unix background I still write and use batch files. It would be nice is the command line included more nice things like grep, sleep, touch. Maybe, someday, Windows will mature into a full OS. What is a Histogram, and How Can I Use it to Improve My Photos?How To Easily Access Your Home Network From Anywhere With DDNSHow To Recover After Your Email Password Is Compromised

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• Alternative to pyGame ?

  - by stighy

  Hi, i'm learning something about game programming from a book about "pyGame". pyGame is simple, but... python is a little complex and different from my previous knoweledge about programming. I know "classical" language: C# (also C/C++), Java ... I know a lot of people love Python but for me is a little harder to learn! So i'm looking something like "pyGame" but for java or for c# ... A library with which i can do almost the same thing i can do with pygame (so .. do more with less code ... and headhace). Thank you Ps: excuse my "poor" english!

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• Next Generation Mobile Clients for Oracle Applications & the role of Oracle Fusion Middleware

  - by Manish Palaparthy

  Oracle Enterprise Applications have been available with modern web browser based interfaces for a while now. The web browsers available in smart phones no longer require special markup language such as WML since the processing power of these handsets is quite near to that of a typical personal computer. Modern Mobile devices such as the IPhone, Android Phones, BlackBerry, Windows 8 devices can now render XHTML & HTML quite well. This means you could potentially use your mobile browser to access your favorite enterprise application. While the Mobile browser would render the UI, you might find it difficult to use it due to the formatting & Presentation of the Native UI. Smart phones offer a lot more than just a powerful web browser, they offer capabilities such as Maps, GPS, Multi touch, pinch zoom, accelerometers, vivid colors, camera with video, support for 3G, 4G networks, cloud storage, NFC, streaming media, tethering, voice based features, multi tasking, messaging, social networking web browsers with support for HTML 5 and many more features.  While the full potential of Enterprise Mobile Apps is yet to be realized, Oracle has published a few of its applications that take advantage of the above capabilities and are available for the IPhone natively. Here are some of them Iphone Apps  Oracle Business Approvals for Managers: Offers a highly intuitive user interface built as a native mobile application to conveniently access pending actions related to expenses, purchase requisitions, HR vacancies and job offers. You can even view BI reports related to the worklist actions. Works with Oracle E-Business Suite Oracle Business Indicators : Real-time secure access to OBI reports. Oracle Business Approvals for Sales Managers: Enables sales executives to review key targeted tasks, access relevant business intelligence reports. Works with Siebel CRM, Siebel Quote & Order Capture. Oracle Mobile Sales Assistant: CRM application that provides real-time, secure access to the information your sales organization needs, complete frequent tasks, collaborate with colleagues and customers. Works with Oracle CRMOracle Mobile Sales Forecast: Designed specifically for the mobile business user to view key opportunities. Works with Oracle CRM on demand Oracle iReceipts : Part of Oracle PeopleSoft Expenses, which allows users to create and submit expense lines for cash transactions in real-time. Works with Oracle PeopleSoft expenses Now, we have seen some mobile Apps that Oracle has published, I am sure you are intrigued as to how develop your own clients for the use-cases that you deem most fit. For that Oracle has ADF Mobile ADF Mobile You could develop Mobile Applications with the SDK available with the smart phone platforms!, but you'd really have to be a mobile ninja developer to develop apps with the rich user experience like the ones above. The challenges really multiply when you have to support multiple mobile devices. ADF Mobile framework is really handy to meet this challenge ADF Mobile can in be used to Develop Apps for the Mobile browser : An application built with ADF Mobile framework installs on a smart device, renders user interface via HTML5, and has access to device services. This means the programming model is primarily web-based, which offers consistency with other enterprise applications as well as easier migration to new platforms. Develop Apps for the Mobile Client (Native Apps): These applications have access to device services, enabling a richer experience for users than a browser alone can offer. ADF mobile enables rapid and declarative development of rich, on-device mobile applications. Developers only need to write an application once and then they can deploy the same application across multiple leading smart phone platforms. Oracle SOA Suite Although the Mobile users are using the smart phone apps, and actual transactions are being executed in the underlying app, there is lot of technical wizardry that is going under the surface. All of this key technical components to make 1. WebService calls 2. Authentication 3. Intercepting Webservice calls and adding security credentials to the request 4. Invoking the services of the enterprise application 5. Integrating with the Enterprise Application via the Adapter is all being implemented at the SOA infrastructure layer.  As you can see from the above diagram. The key pre-requisites to mobile enable an Enterprise application are The core enterprise application Oracle SOA Suite ADF Mobile

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• Multi-module web project with Spring and Maven

  - by Johan Sjöberg

  Assume we have a few projects, each containing some web resources (e.g., html pages). parent.pom +- web (war) +- web-plugin-1 (jar) +- web-plugin-2 (jar) ... Let's say web is the deployable war project which depends on the known, but selectable, set of plugins. What is a good way to setup this using Spring and maven? Let the plugins be war projects and use mavens poor support for importing other war projects Put all web-resource for all plugins in the web project Add all web-resources to the classpath of all jar web-plugin-* dependencie and let spring read files from respective classpath? Other? I've previously come from using #1, but the copy-paste semantics of war dependencies in maven is horrible.

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• Tuning Red Gate: #4 of Some

  - by Grant Fritchey

  First time connecting to these servers directly (keys to the kingdom, bwa-ha-ha-ha. oh, excuse me), so I'm going to take a look at the server properties, just to see if there are any issues there. Max memory is set, cool, first possible silly mistake clear. In fact, these look to be nicely set up. Oh, I'd like to see the ANSI Standards set by default, but it's not a big deal. The default location for database data is the F:\ drive, where I saw all the activity last time. Cool, the people maintaining the servers in our company listen, parallelism threshold is set to 35 and optimize for ad hoc is enabled. No shocks, no surprises. The basic setup is appropriate. On to the problem database. Nothing wrong in the properties. The database is in SIMPLE recovery, but I think it's a reporting system, so no worries there. Again, I'd prefer to see the ANSI settings for connections, but that's the worst thing I can see. Time to look at the queries, tables, indexes and statistics because all the information I've collected over the last several days suggests that we're not looking at a systemic problem (except possibly not enough memory), but at the traditional tuning issues. I just want to note that, I started looking at the system, not the queries. So should you when tuning your environment. I know, from the data collected through SQL Monitor, what my top poor performing queries are, and the most frequently called, etc. I'm starting with the most frequently called. I'm going to get the execution plan for this thing out of the cache (although, with the cache dumping constantly, I might not get it). And it's not there. Called 1.3 million times over the last 3 days, but it's not in cache. Wow. OK. I'll see what's in cache for this database: SELECT  deqs.creation_time,         deqs.execution_count,         deqs.max_logical_reads,         deqs.max_elapsed_time,         deqs.total_logical_reads,         deqs.total_elapsed_time,         deqp.query_plan,         SUBSTRING(dest.text, (deqs.statement_start_offset / 2) + 1,                   (deqs.statement_end_offset - deqs.statement_start_offset) / 2                   + 1) AS QueryStatement FROM    sys.dm_exec_query_stats AS deqs         CROSS APPLY sys.dm_exec_sql_text(deqs.sql_handle) AS dest         CROSS APPLY sys.dm_exec_query_plan(deqs.plan_handle) AS deqp WHERE   dest.dbid = DB_ID('Warehouse') AND deqs.statement_end_offset > 0 AND deqs.statement_start_offset > 0 ORDER BY deqs.max_logical_reads DESC ; And looking at the most expensive operation, we have our first bad boy: Multiple table scans against very large sets of data and a sort operation. a sort operation? It's an insert. Oh, I see, the table is a heap, so it's doing an insert, then sorting the data and then inserting into the primary key. First question, why isn't this a clustered index? Let's look at some more of the queries. The next one is deceiving. Here's the query plan: You're thinking to yourself, what's the big deal? Well, what if I told you that this thing had 8036318 reads? I know, you're looking at skinny little pipes. Know why? Table variable. Estimated number of rows = 1. Actual number of rows. well, I'm betting several more than one considering it's read 8 MILLION pages off the disk in a single execution. We have a serious and real tuning candidate. Oh, and I missed this, it's loading the table variable from a user defined function. Let me check, let me check. YES! A multi-statement table valued user defined function. And another tuning opportunity. This one's a beauty, seriously. Did I also mention that they're doing a hash against all the columns in the physical table. I'm sure that won't lead to scans of a 500,000 row table, no, not at all. OK. I lied. Of course it is. At least it's on the top part of the Loop which means the scan is only executed once. I just did a cursory check on the next several poor performers. all calling the UDF. I think I found a big tuning opportunity. At this point, I'm typing up internal emails for the company. Someone just had their baby called ugly. In addition to a series of suggested changes that we need to implement, I'm also apologizing for being such an unkind monster as to question whether that third eye & those flippers belong on such an otherwise lovely child.

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• Visual Studio 2010 Type or namespace &lsquo;xyz&rsquo; does not exist in&hellip;

  - by Mike Huguet

  It pains me to write this post as I feel like an idiot for having wasted my time on this “problem.”  Hopefully in posting this, I can keep some other poor lost soul working at 4 AM in the morning from spending wasteful minutes scratching his head and getting frustrated.  The Visual Studio designer will work fine in resolving namespaces, but when you build you will get the “Type or namespace ‘xyz’ does not exist error.  If you see this error please take a look at your Errors List window and ensure that you have the “Warnings” option enabled.  It is very likely that you will see that there is a missing dependent reference.  Technorati Tags: Visual Studio

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• Oracle Announces Leading ISV Integration With Oracle Sales and Marketing Cloud Service

  - by Richard Lefebvre

  More Than 100 ISVs, including Big Machines, Marketo and Xactly, now Provide Integrated Offerings to Help Maximize Sales and Single Customer Viewpoint Demonstrating its continued commitment to business value via open standards and the cloud, Oracle today announced that more than 100 leading ISVs are integrating in the cloud with Oracle Sales and Marketing Cloud Service, a service available through Oracle Cloud. For the first time Oracle Sales and Marketing Cloud Service users can choose from a wide array of directly integrated third-party solutions, providing a new level of choice, seamless deployment and single view of customers with preferred implementations. Top partners, including ActivePrime, Avaya, BigMachines, Box, Brainshark, Callidus Software, CirrusPath, Clicktools, CRMIT, DBSync, EchoSign from Adobe, Eloqua, Fliptop, FPX, HarQen, HubSpot, iHance, InsideSales.com, InsideView, Interactive Intelligence, Lingotek, LinkPoint360, Marketo, Nuance, PerspecSys, Postcode Anywhere, Revegy, salesElement, StrikeIron, upsourceIT, White Springs, X+1 and Xactly, have announced their availability and integration today. By integrating with Oracle Sales and Marketing Cloud Service, ISV solutions can easily be leveraged by customersBy choosing Oracle Sales and Marketing Cloud Service as a sales platform, customers will continue to have complete choice of their own quoting, lead management and sales methodology solutions and it will all be pre-integrated with Oracle Sales and Marketing Cloud Service. With demonstrable integration fusing standards-based technologies, such as SOAP web services, Oracle Sales and Marketing Cloud Service customers choosing ISV integrations will also benefit from familiar ease-of-use and the Oracle Sales and Marketing Cloud ervice user interface, including buttons, links and custom objects for a rich user experience. ISV integration with Oracle Sales and Marketing Cloud Service also enables on-demand contextual data exchange capabilities, linking Oracle Sales and Marketing Cloud Service business data with third-party application data for a complete CRM view. ISVs building robust, repeatable integrations with Oracle Sales and Marketing Cloud Service can begin the process of achieving Oracle Validated Integration, an Oracle PartnerNetwork program that recognizes Oracle partner solutions with proven integration to Oracle Applications. ISVs can learn more about Oracle Validated Integration    here. For customers, Oracle Validated Integration means that a partner’s integration has been tested and validated as functionally and technically sound, that the partner solution is integrated with Oracle Sales and Marketing Cloud Service in a reliable, standardized way, and that the integration operates and performs as documented. Oracle Cloud provides a broad portfolio of Platform Services, Application Services, and Social Services, all on a subscription basis. Oracle Cloud delivers instant value and productivity for end users, administrators, and developers through functionally rich, integrated, secure, enterprise cloud services. Supporting Quotes “BigMachines is a leader in Configure, Price, and Quote solutions in the Cloud. Our solution delivers accurate quotes directly from an opportunity, integrated with the leading Oracle Sales and Marketing Cloud application from Oracle,” says John Pulling, Senior Vice President of Products at Big Machines. “Together, Big Machines and Oracle efficiently automate changes, enabling a faster, more efficient sales process for our joint customers.”   ”Modern marketing and sales must engage customers and prospects in real time across the web, email, social media, online and offline channels to understand where and how to allocate their budgets for maximum return,” said Srini Venkatesan, Senior VP, Products and Engineering at Marketo. “Alignment and integration with Oracle Sales and Marketing Cloud Service allows Marketo’s solutions to deliver innovative capabilities for sales and marketing to adapt and grow their business on the core Oracle platform for CRM.”   “Sales incentives are the best way to drive better performance. Well managed incentives improve the bottom line, particularly when combined with effective sales systems,” said Christopher Cabrera, president and CEO of Xactly Corporation. “With Oracle Sales and Marketing Cloud Service and Xactly working together, customers gain insight and efficiencies. The combination can create more effective compensation programs, while motivating sales to work to its full potential."   “The tremendous integration of leading ISVs with Oracle Sales and Marketing Cloud Service is a testament to the undeniable business value and demand from customers,” said Anthony Lye, SVP of Oracle CRM. “Oracle Sales and Marketing Cloud Service continues to define the industry, and we are proud to work with these leading ISVs to help users simultaneously maximize sales and revenue and extend their current deployments for a deeper and single customer viewpoint.” Supporting Resources Oracle Sales and Marketing Cloud Service Learn More About Oracle Cloud

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