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  • Lazy Initailization in .NET 4.0

    Lazy initialization or lazy instantiation means that an object is not created until it is first referenced. Lazy initialization is used to reduce wasteful computation, memory requirements. Following is an example where Lazy initialization is particularly useful.

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  • Google I/O 2012 - Enterprise Geospatial in the Cloud

    Google I/O 2012 - Enterprise Geospatial in the Cloud Sean Maday, Mano Marks Google now offers a powerful and versatile cloud hosting solution for geospatial data and analysis. Learn how your business can exploit this potential to reduce costs, increase productivity, and deliver services to your employees and developers using familiar tools like Google Earth and the Google Maps API. For all I/O 2012 sessions, go to developers.google.com From: GoogleDevelopers Views: 790 9 ratings Time: 55:03 More in Science & Technology

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  • Are You Drowning in E-mail ?

    Learn to Reduce Email Overload By 54% E-mail is Making You Stupid! At least, that';s what a headline in the March edition of Entrepreneur Magazine claims. But that';s not all... a survey from the Radi... [Author: Ted Gulas - Computers and Internet - June 07, 2010]

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  • Generating triangles from a square grid

    - by vivi
    I have a 2D square grid of values representing terrain elevations, and I want to generate triangles from that grid to make a 3D view of the terrain. My first thought was to split each square diagonally into 2 triangles, however the split diagonal can clearly be seen, especially from the top : [Sorry, as a new user I can't post images, please see here : imgur] Is there a recommended way to generate triangles to remove/reduce this effect ?

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  • How to determine the source of a request in a distributed service system?

    - by Kabumbus
    Map/Reduce is a great concept for sorting large quantities of data at once. What to do if you have small parts of data and you need to reduce it all the time? Simple example - choosing a service for request. Imagine we have 10 services. Each provides services host with sets of request headers and post/get arguments. Each service declares it has 30 unique keys - 10 per set. service A: name id ... Now imagine we have a distributed services host. We have 200 machines with 10 services on each. Each service has 30 unique keys in there sets. but now to find to which service to map the incoming request we make our services post unique values that map to that sets. We can have up to or more than 10 000 such values sets on each machine per each service. service A machine 1 name = Sam id = 13245 ... service A machine 1 name = Ben id = 33232 ... ... service A machine 100 name = Ron id = 777888 ... So we get 200 * 10 * 30 * 30 * 10 000 == 18 000 000 000 and we get 500 requests per second on our gateway each containing 45 items 15 of which are just noise. And our task is to find a service for request (at least a machine it is running on). On all machines all over cluster for same services we have same rules. We can first select to which service came our request via rules filter 10 * 30. and we will have 200 * 30 * 10 000 == 60 000 000. So... 60 mil is definitely a problem... I hope to get on idea of mapping 30 * 10 000 onto some artificial neural network alike Perceptron that outputs 1 if 30 words (some hashes from words) from the request are correct or if less than Perceptron should return 0. And I’ll send each such Perceptron for each service from each machine to gateway. So I would have a map Perceptron <-> machine for each service. Can any one tall me if my Perceptron idea is at least “sane”? Or normal people do it some other way? Or if there are better ANNs for such purposes?

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  • PeopleSoft Enterprise 9.1

    - by [email protected]
    If you are at OpenWorld, you'll learn about Oracle's PeopleSoft Enterprise Release 9.1, one of the most robust and comprehensive releases for the product line. It includes 21 new solutions, 1,350 new features, more than 28,000 pages enhanced with Web 2.0 capabilities, 300 new Web services, and 200 industry-specific enhancements. This latest release helps customers increase productivity, accelerate business performance, and reduce the cost of ownership. Click here to see a list of PeopleSoft sessions at OpenWorld 2009.

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  • Color scheme for programmers

    - by seler
    Recently I've discovered Solarized. It's supposed to reduce eye-fatigue and after using it for a while i must say it's true. When I switched back to my old colors they were damn to bright. I don't really like the colors in Solarized theme but I'm astonished by the effect it has on my eyes. I'm wondering if there are other themes designed with such a precision for wide range of IDEs (and even terminal colors!). Another example is Zenburn

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  • DeveelDB

    - by csharp-source.net
    DeveelDB is a full embeddedable SQL database management system for .NET and Mono frameworks, managing small to large amount of data with a wide support for complex types. Some of the key features of this project are: - the strong transactional system for isolated operations an efficient memory management to reduce the impact on the runtime - its open architecture, to permit development of modules and features - a small footprint: the core library is ~1Mb

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  • How do you pack resources in a game when you have too many of them?

    - by ThePlan
    I've recently made a basic space invaders clone in C++ using the Allegro 5 framework. It took me a long time, but after I finished, I realized I had about 10 sprites, and 13MB worth of DLLs (Some of the people didn't even have the mingW dlls) which were making people who played the game very confused. How can I "pack" all my resources in a way that I can easily add-remove data to my game, and to reduce the size taken by the resource, basically placing them in 1 spot? I'm using codeblocks.

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  • Open source Projects which pays the developers?

    - by java_mouse
    Are there any Java open source projects that Pays the developers? I came across this from a book : Programming Interviews Exposed. Page #25 Are open-source projects preferable? The vast majority of programming jobs have usually involved proprietary, closed-source projects, which some programmers find objectionable. There’s been a small shift in favor of more open software development, which provides more opportunities for people like yourself to participate in open-source projects and still be paid for that participation.

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  • Analysing Indexes - reducing scans.

    - by GrumpyOldDBA
    The whole subject of database/application tuning is sometimes akin to a black art, it's pretty easy to find your worst 20 whatever but actually seeking to reduce operational overhead can be slightly more tricky. If you ever read through my analysing indexes post you'll know I have a number of ways of seeking out ways to tune the database. -- This is a slightly different slant on one of those which produced an interesting side effect. -- We all know that except for very small tables avoiding...(read more)

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  • From the Tips Box: Xbox Output on Two Screens, High Tech Halloween Props, and Old Flash Drives as Password Reset Disks

    - by Jason Fitzpatrick
    Once a week we round up some great reader tips and share them with everyone, this week we’re looking at outputting your Xbox 360 to two screens, spooky high-tech Halloween props, and recycling old flash drives as password reset disks. HTG Explains: What is the Windows Page File and Should You Disable It? How To Get a Better Wireless Signal and Reduce Wireless Network Interference How To Troubleshoot Internet Connection Problems

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  • When not to use Google Web Toolkit?

    - by Jas
    I'm considering use of GWT on a major in-house web app development project, namely it's major advantage in my eyes is the cross-compilation to Javascript which would (at least theoretically) help my team reduce the size of tech stack by one. However, having been burnt before (like most devs), I would like to hear from programmers who did actually use it on any problems with GWT which would hamper, or limit, it's use within a certain problem domain. When do you not recommend using GWT, and why?

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  • PeopleSoft New Design Solves Navigation Problem

    - by Applications User Experience
    Anna Budovsky, User Experience Principal Designer, Applications User Experience In PeopleSoft we strive to improve User Experience on all levels. Simplifying navigation and streamlining access to the most important pages is always an important goal. No one likes to waste time waiting for pages to load and watching a spinning glass going on and on. Those performance-affecting server trips, page-load waits and just-too-many clicks were complained about for a long time. Something had to be done. A few new designs came in PeopleSoft 9.2 helping users to access their everyday work areas easier and faster. For example, Dashboard and Work Center aggregate most accessed information sections on a single page; Related Information allows users to complete transaction-related-research without interrupting a transaction and Secure Search gets users to a specific page directly. Today we’ll talk about the Actions menu. Most PeopleSoft pages are shared between individual products and product lines. It means changing the content on a single page involves Oracle development and quality assurance time for making and testing the changes. In order to streamline the navigation and cut down on accessing PeopleSoft pages one-page-at-a-time, we introduced a new menu design. The new menu allows accessing shared pages without the Oracle development team making any local changes, and it works as an additional one-click-path to specific high-traffic actionable pages. Let’s look at how many steps it took to Change Salary for an employee in HCM 9.1 before: Figure 1. BEFORE: The 6 steps a user would take to Change Salary in PeopleSoft HCM 9.1 In PeopleSoft 9.1 it took 5 steps + page loading time + additional verification time for making sure a correct employee is selected from the table. In PeopleSoft 9.2 it only takes 2 steps. To complete Ad Hoc Change Salary action, the user can start from the HCM Manager's Dashboard, click the Action menu within a table, choose a menu option, and access a correct employee’s details page to take an action. Figure 2. AFTER: The 2 steps a user would take to Change Salary in PeopleSoft HCM 9.2 The new menu is placed on a row level which ensures the user accesses the correct employee’s details page. The Actions menu separates menu options into hierarchical sections which help to scan and access the correct option quickly. The new menu’s small size and its structure enabled users to access high-traffic pages from any page and from any part of the page. No more spinning hourglass, no more multiple pages upload. The flexible design fits anywhere on a page and provides a fast and reliable path to the correct destination within the product. Now users can: Access any target page no matter how far it is buried from the starting point; Reduce navigation and page-load time; Improve productivity and reduce errors. The new menu design is available and widely used in all PeopleSoft 9.2 product lines.

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  • SEO - Surefire Tips to Help You Get Better Search Engine Rankings

    When people build websites, there are a lot of intentions for which they do this and one of the reasons is because people want to make use of SEO tips that is make people to be driven to their websites which will in turn fetch money for them. This is done by making a piece of writing that is known as content and this is a very rewarding but difficult task although it has been proven that there are ways through which the work can be made to reduce.

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  • Streamlining granular recovery for SharePoint, with Red Gate and Metalogix

    We have recently found an elegant way to reduce the time, and disk space required for SharePoint administrators who need to perform granular recovery operations out of their SQL Server backup files. I used to get customer calls that would go something like this: Join SQL Backup’s 35,000+ customers to compress and strengthen your backups "SQL Backup will be a REAL boost to any DBA lucky enough to use it." Jonathan Allen. Download a free trial now.

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  • FORBES.COM: Oracle's message is loud & clear – “we've got the cloud”

    - by Richard Lefebvre
    In a two-part series on Oracle's cloud strategy, Bob Evans reports on the October 4 meeting where Wall Street analysts questioned Mark Hurd and Safra Catz about the company's positioning for the shift to cloud computing. Check out Bob's related Forbes.com piece "The Dumbest Idea of 2013," in response to the preposterous chatter that Larry Ellison and Oracle don't "get" the cloud. His powerful six-point argument unravels our competitors' spin. Read the "Dumbest Idea."

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  • Using Query Classes With NHibernate

    - by Liam McLennan
    Even when using an ORM, such as NHibernate, the developer still has to decide how to perform queries. The simplest strategy is to get access to an ISession and directly perform a query whenever you need data. The problem is that doing so spreads query logic throughout the entire application – a clear violation of the Single Responsibility Principle. A more advanced strategy is to use Eric Evan’s Repository pattern, thus isolating all query logic within the repository classes. I prefer to use Query Classes. Every query needed by the application is represented by a query class, aka a specification. To perform a query I: Instantiate a new instance of the required query class, providing any data that it needs Pass the instantiated query class to an extension method on NHibernate’s ISession type. To query my database for all people over the age of sixteen looks like this: [Test] public void QueryBySpecification() { var canDriveSpecification = new PeopleOverAgeSpecification(16); var allPeopleOfDrivingAge = session.QueryBySpecification(canDriveSpecification); } To be able to query for people over a certain age I had to create a suitable query class: public class PeopleOverAgeSpecification : Specification<Person> { private readonly int age; public PeopleOverAgeSpecification(int age) { this.age = age; } public override IQueryable<Person> Reduce(IQueryable<Person> collection) { return collection.Where(person => person.Age > age); } public override IQueryable<Person> Sort(IQueryable<Person> collection) { return collection.OrderBy(person => person.Name); } } Finally, the extension method to add QueryBySpecification to ISession: public static class SessionExtensions { public static IEnumerable<T> QueryBySpecification<T>(this ISession session, Specification<T> specification) { return specification.Fetch( specification.Sort( specification.Reduce(session.Query<T>()) ) ); } } The inspiration for this style of data access came from Ayende’s post Do You Need a Framework?. I am sick of working through multiple layers of abstraction that don’t do anything. Have you ever seen code that required a service layer to call a method on a repository, that delegated to a common repository base class that wrapped and ORMs unit of work? I can achieve the same thing with NHibernate’s ISession and a single extension method. If you’re interested you can get the full Query Classes example source from Github.

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  • Brightness options in Ubuntu 12.04 desktop missing

    - by Harsh Thakar
    I am unable to change the brightness of my desktop screen using this path. System settings{top right corner of the screen)Under Personal Brightness & lock.No option to change brightness is available here.In Ubuntu 11.04 Shift key + +/- key was used to change brightness,the same doesn't work in 12.04. Also under System settings{top right corner of the screen)Under Hardware Displays,my monitor is recognized as a Laptop despite me using a desktop!

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  • Alt-Tab in 12.04 requires pressing Enter to select app, can I disable that?

    - by Brett Hoerner
    Alt+Tab quickly opens the switcher for me, but tabbing over to the next app and releasing the keys will just leave it selected, not switch to it. I have to press Enter to actually switch to the app. How do I make it automatically switch when I release like every other switcher out there? Same behavior occurs when using Super+Tab with either the Compiz Ring Switcher or Shift Switcher. This seems different from the 11.10 behavior.

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  • Oracle OpenWorld / JavaOne Where I'll Be

    - by Shay Shmeltzer
    It's that time of the year again when San Francisco get flooded with Oracle and Java geeks for the annual OpenWorld and JavaOne conferences. Here are some of the places where you'll be able to find me: Sunday has a bunch of great ADF content in the ADF Enterprise Methodology Group track - I'm not sure if I'll make it there but I'm sure those who will will get some serious knowledge transfer. I'm starting Monday at the Keynote for Developers (10:45 in Salon 8 at the Marriott) - that's a great place for ADF developers to start the official week with an overview of what's new and upcoming in the world of development with ADF. While I'm not presenting this session - Chris Tonas who leads the development tools org will -  a demo that I built will be shown. So I'll be sitting in the audience crossing my fingers praying for the demo gods (and the wifi connection to work). My presentation part of the week starts on Monday at 12:15 at Moscone South room 306 where I'll be presenting "CON3004 - Understanding Oracle ADF and Its Role in Oracle Fusion"  . A basic introduction to ADF, it's architecture, development experience and how it integrates and works with the rest of the Fusion Middleware components.  After the session between 2-4 I'll be at the JDeveloper demo booth in Moscone South to answer any questions people might have. Then at 6:15 together with Grant we'll host BOF4492 - How to Get Started with Oracle ADF where we'll try and explain some of the learning paths and resources that are available for people who want to start learning ADF. This is a birds-of-a-feather so we'll also love to hear ideas from the audience about what paths they took and what things work or need improvment. Tuesday is relatively a quite day for me with a shift at the Oracle ADF Essentials pod at JavaOne from 1:30-3:30. There are several very good ADF architecture and best practices sessions on that day - so I'll try and hit those. Wednesday starts with another shift at the JDeveloper booth at JavaOne. Then at 4:30, instead of doing what all the ADF developers should do and heading over to the ADF meetup at the OTN Lounge, I'll be heading over to JavaOne for my CON3770 - Oracle JDeveloper and Oracle ADF: What’s New session. It's been a couple of years since the last time JDeveloper or ADF got any airtime at JavaOne - so it will be a great opportunity to show those in the Java community with open minds our approach to Java development. Now that ADF Essentials offers a free way to develop with ADF on GlassFish, I hope we'll be getting more people from the core Java camp interested in what we have to offer. Thursday is another relaxed day for me - who knows maybe I'll even be able to catch a session or two on that day. If you want to learn more about the ADF related sessions at OOW check out our full list here.

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  • Top 3 Online Business Needs Where SEO Company Can Help

    As an entrepreneur you must have realized that online web promotion has become a necessity for every online business. Hence whether you want your website to perform better as an associate marketing platform or you want to generate some extra revenue from an online source, SEO experts can help you to reduce your online marketing expense and promote your website with the best promotional strategy that suits your business and target.

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  • A Look at the Difference Between Web Design and Web Development

    Many people are interested in using the Internet to promote their business. Knowing the difference between web design and web development is important because while the terms are often used in place of one another, they are two very different things. Being able to speak with the people who are creating your website and use the proper terms can help reduce misunderstandings and speed up the creation process.

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