Search Results

Search found 23827 results on 954 pages for 'software architecture'.

Page 495/954 | < Previous Page | 491 492 493 494 495 496 497 498 499 500 501 502  | Next Page >

• TechEd 2010 Important Events

  If youll be attending TechEd in New Orleans in a couple of weeks, make sure the following are all on your calendar:   Party with Palermo TechEd 2010 Edition Sunday 6 June 2010 7:30-930pm Central Time RSVP and see who else is coming here.  The party takes place from 730pm to 930pm Central (Local) Time,  and includes a full meal, free swag, and prizes.  The event is being held at Jimmy Buffetts Margaritaville located at 1104 Decatur Street.   Developer Practices Session: DPR304 FAIL: Anti-Patterns and Worst Practices Monday 7 June 2010 4:30pm-545pm Central Time Room 276 Come to my session and hear about what NOT to do on your software project.  Hear my own and others war stories and lessons learned.  Youll laugh, youll cry, youll realize youre a much better developer than a lot of folks out there.  Heres the official description: Everybody likes to talk about best practices, tips, and tricks, but often it is by analyzing failures that we learn from our own and others' mistakes. In this session, Steve describes various anti-patterns and worst practices in software development that he has encountered in his own experience or learned about from other experts in the field, along with advice on recognizing and avoiding them. View DPR304 in TechEd Session Catalog >> Exhibition Hall Reception Monday 7 June 2010 545pm-9pm Immediately following my session, come meet the shows exhibitors, win prizes, and enjoy plenty of food and drink.  Always a good time.   Party: Geekfest Tuesday 8 June 8pm-11pm Central Time, Pat OBriens Lets face it, going to a technical conference is good for your career but its not a whole lot of fun. You need an outlet. You need to have fun. Cheap beer and lousy pizza (with a New Orleans twist) We are bringing back GeekFest! Join us at Pat OBriens for a night of gumbo, beer and hurricanes. There are limited invitations available, so what are you waiting for? If you are attending the TechEd 2010 conference and you are a developer, you are invited. To register pick up your "duck" ticket (and wristband) in the TechEd Technical Learning Center (TLC) at the Developer Tools & Languages (DEV) information desk. You must have wristband to get in. Tuesday, June 8th from 8pm 11pm Pat OBriens New Orleans 624 Bourbon Street New Orleans, LA 70130 Closing Party at Mardi Gras World Thursday 10 June 730pm-10pm Central Time Join us for the Closing Party and enjoy great food, beverages, and the excitement of New Orleans at Mardi Gras World. The colors, the lights, the music, the joie de vivreits all here.  Learn more >> 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.

  Read the article

• How can I get a gnome environment in my VNC session?

  - by adante

  When I start VNC I have an empty desktop without the ability to manage windows or start apps etc). I'd like to have a desktop environment to be able to basic desktop things (someone asked me why I wanted this - I can't really say except that I would like my computer to be useful). My focus at the moment is basically having a working environment with as little time/effort expenditure as possible, as opposed to spending a full-time week learning the most trivial and arcane details of x, vnc, gnome or whatever passes for the current desktop architecture standard of the hour. What command or series of hoops do I have to jump to to achieve this? I have tried running gnome-session but it looks like it is attempting to run compiz and fails spectacularly. I've also tried running metacity but this simply gives me a titlebars to my windows (this is great! But I'd also like the taskbar and other stuff). I considered trying to start gnome-session in a way that it uses metacity instead of compiz. But I don't know how to do this. Tutorials on the net exist for changing to metacity - once you already have compiz running. Not so useful if compiz does not run.

  Read the article

• Help Decide between C#/XNA client or Java

  - by Sparkky

  The game runs on a client/server architecture currently setup for TCP, and the client code was built in AS3 to be web based. What we're running into is 3 problems for the client. AS3 has no hardware acceleration so we are having some issues with slowdown when implementing some features TCP is really frustrating for a sidescroller when you're talking with a server. I'm having a heck of a time with the interpolation/extrapolation to make everyone else look smooth while minimizing lag. I would much rather be able to use UDP and throw in something similar to the age old Quake interpolation/extrapolation. No right click I work professionally with C#, and I did all my University (almost 2 years ago) with Java. Java really appeals to me because of the compatability while C# appeals to me because I've heard so much good about XNA and I love visual studio. For a Client/Server based MMOish sidescroller in your opinion should I stick with AS3 and the TCP protocol, or should I abandon some of my audience, ramp up the graphics and hit C#, or journey back to the land of Java. Thanks :D

  Read the article

• Should this code/logic be included in Business Objects class or a separate class?

  - by aspdotnetuser

  I have created a small application which has a three tier architecture and I have business object classes to represent entities such as User, Orders, UserType etc. In these classes I have methods that are executed when the Constuctor method of, for example, User is called. These methods perform calculations and generate details that setup data for attributes that are part of each User object. Here is the structure for the project in Visual Studio: Here is some code from the business object class User.cs: Public Class User { public string Name { get; set; } public int RandomNumber { get; set; } etc public User { Name = GetName(); RandomNumber = GetRandomNumber(); } public string GetName() { .... return name; } public int GetRandomNumber() { ... return randomNumber; } } Should this logic be included in the Business Object classes or should it be included in a Utilities class of some kind? Or in the business rules?

  Read the article

• Why have we got so many Linux distributions? [closed]

  - by nebukadnezzar

  Pointed to from an answer to another question, I came across this graphic, and I'm shocked how many linux distributions currently exist. However, it seems that most of these distributions are forks of already popular distributions with minimal changes, usually limited to themes, wallpapers and buttons. It would still seem easier to create a sub-distribution with the required changes, such as XUbuntu with XFCE4, KUbuntu with KDE4, Fluxbuntu with Fluxbox, etc. In my mind there are a number of problems with having so many distributions - perhaps less security/stability due to smaller group of developers, and also the confusingly vast range of choice for newcomers to Linux. Some reasons that developers might decide to fork are: Specializing on a particular topic (work-related topic - i.e. for a Hospital, etc) An exceptional architecture, that requires a special set of software Use of non-FOSS, proprietary technology, and such So what other reasons are there that have caused so many people decided to create their own distributions? What are the thought processes that have led to this? And are these "valid" reasons - do we need so many distributions? If you can back your experiences up with references that would be great.

  Read the article

• Optimising news fetching

  - by aceBox

  I have a web scraper for scraping news from different sources in wp7. My current appraoch for doing this is: load newspapers information from xml file. go to the specified sections and fetch the urls of the news items. go to each url and fetch headline, image, publisher. display using a MVVM architecture of windows phone. The whole thing takes place asynchronously...meaning as soon as url from a section of a newspaper is fetched it is added to the queue, and the second stage consisting of fetching headline, image etc starts... and as soon this is fetched even for one article, it is displayed. Later on as more articles are fetched, they are added on to the list. For the fetching purpose I am using a SmartThreadPool(http://www.codeproject.com/Articles/7933/Smart-Thread-Pool) for windows phone. My problem is that...even for fetching around 80 items (in total) from 9 publications, it is taking more than a minute. How can i speed up the procedure? Note: I have a two stage approach because many times the images are not available with headlines, and are only found in the article.

  Read the article

• Get the Latest Security Inside Out Newsletter, October Edition

  - by Troy Kitch

  The latest October edition of the Security Inside Out newsletter is now available and covers the following important security news: Securing Oracle Database 12c: A Technical Primer The new multitenant architecture of Oracle Database 12c calls for adopting an updated approach to database security. In response, Oracle security experts have written a new book that is expected to become a key resource for database administrators. Find out how to get a complimentary copy.  Read More HIPAA Omnibus Rule Is in Effect: Are You Ready? On September 23, 2013, the HIPAA Omnibus Rule went into full effect. To help Oracle’s healthcare customers ready their organizations for the new requirements, law firm Ballard Spahr LLP and the Oracle Security team hosted a webcast titled “Addressing the Final HIPAA Omnibus Rule and Securing Protected Health Information.” Find out three key changes affecting Oracle customers.  Read More The Internet of Things: A New Identity Management Paradigm By 2020, it’s predicted there will be 50 billion devices wirelessly connected to the internet, from consumer products to highly complex industrial and manufacturing equipment and processes. Find out the key challenges of protecting identity and data for the new paradigm called the Internet of Things.  Read More

  Read the article

• Installation questions

  - by user12609425

  I've gotten a couple more questions about the installation process for Ops Center. "Can I install on any SPARC / X86 based platform?" Ops Center can run on Oracle Solaris on either architecture, or on Linux. The Certified Systems Matrix lists the supported OSes, and the Linux and Solaris install guides go into more detail about the hardware and OS requirements. "Can we install it on local zones or LDOMS?" Zones, yes; LDOMS, sort of. You can install the Enterprise Controller in a local zone. There are a few caveats, which are explained in the Preparing a Non-Global Zone section. You can also install a Proxy Controller in an Oracle Solaris 11 zone. Agent Controllers, which are the part of the infrastructure that's installed on managed systems, can be put on zones or LDOMS. "Do we need any dedicated network ports from all agent monitoring systems?"  Yes. The port requirements are covered in the Network Port Requirements and Protocols table, which is in the feature reference guide as well as in the install guides.

  Read the article

• Updated Business Activity Monitoring (BAM) Class

  - by Gary Barg

  We have just completed an extensive upgrade to the Business Activity Monitoring course, bringing it up to PS5 level and doing some major rework of content and topic flow. This should be a GREAT course for anyone needing to learn to use BAM effectively to analyze their SOA data. Details of the Course This course explains how to use Oracle BAM to monitor enterprise business activities across an enterprise in real time. You can measure your key performance indicators (KPIs), determine whether you are meeting service-level agreements (SLAs), and take corrective action in real time. Learn To: Create dashboards and alerts using a business-friendly, wizard-based design environment Monitor BPM and BPEL processes Configure drilling, driving, and time-based filtering Create alerts Build applications with a dynamic user interface Manage BAM users and roles In addition to learning Oracle BAM architecture, you learn how to perform administrative tasks related to Oracle BAM. You create and work with the different types of message sources that send data into Oracle BAM. You build interactive, real-time, actionable dashboards, and you configure alerts on abnormal conditions. You learn how to monitor both BPEL and BPM composite applications with Oracle BAM. Lastly, you create and use Oracle BAM data control to build applications with a dynamic user interface that changes based on real-time business events. Registration The Oracle University course page with more course details and registration information, is here. The next scheduled class: Date: 5-Dec-2012 Duration: 3 days Hours: 9:00 AM – 5:00 PM CT Location: Chicago, IL Class ID: 3325708

  Read the article

• Free Xsigo Technical Pre-sales workshop for Selected Partners !

  - by mseika

  In 2012 Oracle acquired Xsigo, a developer of network I/O virtualisation solutions. This acquisition compliments Oracle’s extensive virtualisation portfolio. With Oracle Virtual Networking products (Xsigo) you can: Virtualise connectivity from any server to any storage and any network. Reduce datacentre complexity by 70% Cut infrastructure expenses by up to 50% Benefits to Channel Partners: Offer a unique proposition that your competitors can’t match. Provide an innovative solution that delivers more performance at less cost. High margins that help sell more products and services. This course is aimed at Technical Pre-Sales Consultants equipping them to provide detailed demos, and architect RFP feedback and customer solutions. The language of this event is French. WHEN24th September 2013 WHEREOracle France 15, boulevard Charles De Gaulle92715 COLOMBES FEESFree of charge 09.00: Welcome, Coffee & Introduction 09.30: Value Propositions, Architecture & Use Cases 11.30: Build a OVN Web Quote & TCO 12.30: Lunch 13.30: Competitive Summary 14.00: Design Scenario Workshop 15.45: Questions/Opportunities  REGISTRATION: Register via this link as soon as possible, 14th june, latest. Note that we have only 20 seats in total for this event. Note that after 14th june we will release free seats for other organizations to register. We look forward to your participation! What we expect from you: You will bring your own laptop. Recommended browser is Firefox 10 ESR. You have checked the material and conducted the assessments. You will be flexible in terms of Agenda and Progress as we intend this to be more of a Workshop having Dialogue rather than sticking tightly into the tentative timeline. What this is not: This PartnerLab does not replace Oracle University Trainings. This PartnerLab does not lead to a Certification as such. This PartnerLab does not enable Partners to full and complete implementation skills.

  Read the article

• How much a programmer should read in order to keep himself updated? [closed]

  - by anything

  There are lots of technical books available. Below are few links which lists some good books If you could only have one programming related book on your bookshelf what would it be and why? What non-programming books should a programmer read to help develop programming/thinking skills? Best books on the theory and practice of software architecture? http://stackoverflow.com/questions/1711/what-is-the-single-most-influential-book-every-programmer-should-read ... and the list can go on and on and on. It will be really difficult to read all of the above mentioned books. I am not sure if its even possible for anyone to do that. Even if you filter it based on one's area of interest or work, list is still very large. .. and the technology keeps on changing (even more books :-( ) So, my question is how much a programmer should read lets say per year? How much hours one should put in such activities to keep oneself up to date? How do we find out the time required? PS: Average programmer reads less than one book per year (Code complete). What about the good programmers?

  Read the article

• Will all applications work fine on 64-bit Ubuntu?

  - by Qmal

  I used Ubuntu some time ago and now I want to switch on it again since community raised a lot and so did support for applications like Wine. I remember that when 64bit version just came out many applications didn't work as they did on 32bit version. Is it not better or still the same? Maybe they implemented something like WoW in Windows that simulates 32bit architecture and every possible app is working just fine. I am asking because I have lots of ram and I don't want to sit on 3GB when I have 8. Also, I am somewhat of a programmer, but that is not a problem because if I write PHP I use NetBeans on Windows anyway, and it works on Linux just as fine. But I also love to write C++/C# code. Is it well supported? I really like Visual Studio 2010, it is very slick and has good auto completion, debugging and so on... Is there any IDE on Ubuntu that is similar to Visual Studio in terms of auto-completion, code formatting, GUI designer, debugging? I really hope you will answer me these questions because I really like to "convert" myself to Ubuntu once and for all.

  Read the article

• deb package building

  - by newcode

  While trying to build a package, I gave the following command in terminal: cd Downloads/src/ cd unity-5.10.0/ dpkg-buildpackage -rfakeroot -uc -b Then it gives the output: dpkg-buildpackage: export CFLAGS from dpkg-buildflags (origin: vendor): -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security dpkg-buildpackage: export CPPFLAGS from dpkg-buildflags (origin: vendor): -D_FORTIFY_SOURCE=2 dpkg-buildpackage: export CXXFLAGS from dpkg-buildflags (origin: vendor): -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security dpkg-buildpackage: export FFLAGS from dpkg-buildflags (origin: vendor): -g -O2 dpkg-buildpackage: export LDFLAGS from dpkg-buildflags (origin: vendor): -Wl,-Bsymbolic-functions -Wl,-z,relro dpkg-buildpackage: source package unity dpkg-buildpackage: source version 5.10.0-0ubuntu6 dpkg-buildpackage: source changed by Didier Roche <[email protected]> dpkg-buildpackage: host architecture i386 dpkg-source --before-build unity-5.10.0 dpkg-checkbuilddeps: Unmet build dependencies: libutouch-grail-dev (>= 1.0.20) libutouch-geis-dev (>= 2.0.10) dpkg-buildpackage: warning: Build dependencies/conflicts unsatisfied; aborting. dpkg-buildpackage: warning: (Use -d flag to override.) Then I tried to install the package using: cd.. sudo dpkg -i *deb And it gives: [sudo] password for harshnarang8: dpkg: error processing *deb (--install): cannot access archive: No such file or directory Errors were encountered while processing: *deb What is exactly causing the problem and how to encounter it?

  Read the article

• Speaking at Sinergija12

  - by DigiMortal

  Next week I will be speaker at Sinergija12, the biggest Microsoft conference held in Serbia. The first time I visited Sinergija it was clear to me that this is the event where I should go back. Why? Because technical level of sessions was very well in place and actually sessions I visited were pretty hardcore. Now, two years later, I will be back there but this time I’m there as speaker. My session at Sinergija12 Here are my three almost finished sessions for Sinergija12. ASP.NET MVC 4 Overview Session focuses on new features of ASP.NET MVC 4 and gives the audience good overview about what is coming. Demos cover all important new features - agent based output, new application templates, Web API and Single Page Applications. This session is for everybody who plans to move to ASP.NET MVC 4 or who plans to start building modern web sites.   Building SharePoint Online applications using Napa Office 365 Next version of Office365 allows you to build SharePoint applications using browser based IDE hosted in cloud. This session introduces new tools and shows through practical examples how to build online applications for SharePoint 2013.   Cloud-enabling ASP.NET MVC applications Cloud era is here and over next years more and more web applications will be hosted on cloud environments. Also some of our current web applications will be moved to cloud. This session shows to audience how to change the architecture of ASP.NET web application so it runs on shared hosting and Windows Azure with same code base. Also the audience will see how to debug and deploy web applications to Windows Azure. All developers who are coming to Sinergija12 are welcome to my sessions. See you there! :)

  Read the article

• Tuesday at Oracle OpenWorld 2012 - Must See Session: “Jump-starting Integration Projects with Oracle AIA Foundation Pack”

  - by Lionel Dubreuil

  Don’t miss this “CON8769 - Jump-starting Integration Projects with Oracle AIA Foundation Pack“session: Date: Tuesday, Oct 2 Time: 1:15 PM - 2:15 PM Location: Marriott Marquis - Salon 7 Speakers: Robert Wunderlich - Principal Product Manager, Oracle Munazza Bukhari - Group Manager, AIA FP Product Management, Oracle The Oracle Application Integration Architecture Foundation Pack development lifecycle prescribes the best practice methodology for developing integrations between applications. The lifecycle is supported by a toolset that focuses on the architects and developers. Attend this session to understand how Oracle AIA Foundation Pack can jump-start integration project development and boost developer productivity. It demonstrates what the product does today and showcases new features such as support for building direct integrations. Objectives for this session are: Understand how to boost developer productivity Hear about support for direct integrations Learn what’s new in Oracle AIA Foundation Pack Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Calibri","sans-serif";}

  Read the article

• Is there a PROPRIETARY driver (NVIDIA or ATI) that actually works with 12.10?

  - by DS13

  NOTE: I see many similar topics on this, but I've tried all their suggestions, and nothing has worked. THE MAIN DIFFERENCE SEEMS TO BE: I always get a black screen with a blinking cursor, while others seem to get through the boot-up and see distorted graphics or just their wallpaper. ISSUE: I do a clean install of Ubuntu 12.10. Boots fine with the “nouveau” graphics driver – graphics (even just menus) are very slow, choppy, and distorted. The three other driver options in Ubuntu (official NVIDIA drivers), all result in a variation of the black screen on boot up. There will be NO access to a command line/GUI in anyway what-so-ever (tried every option recommended out there, but the system is unusable at this stage). I can only reinstall, and try different drivers…and I only ever get one shot at it. QUESTIONS: -Does anyone know of a PROPRIETARY driver that will actually work on 12.10 with a NVIDIA or ATI card? -Should I just buy a newer graphics card to put in as a replacement? MORE INFO: This is my second computer, and I’m just trying to get a working install of Ubuntu on it. I don’t want to put much money into it, as I have seen Ubuntu run great on much older/less capable machines. I’ve got a decent'ish Core2Duo Intel processor (2.13Ghz), 2GB of RAM, 320GB hard drive, 32-bit architecture, and there is no other O/S installed. It appears as if the graphics card (NVIDIA Geforce 7350 LE) is holding me back. TRIED SO FAR: -all drivers available in Ubuntu *all fail -manual install of some different NVIDIA drivers *all fail -also tried installing the generic kernel, Nvidia driver doesn't work in 12.10 *no difference -tried installing 12.04 *same results -every method suggested to at least get a command line after switching to a NVIDIA driver *all fail -UPDATE- Re-tried everything above with a new NVIDIA Geforce 210...same results for everything. -UPDATE #2- Re-tried everything above with a new AMD Radeon HD 6450...installed the proprietary driver from Ubuntu's "Software Sources" menu...EVERYTHING NOW WORKS. See "answer" below for summary.

  Read the article

• Wednesday at Oracle OpenWorld 2012 - Must See Session: “Cloud and On-Premises Applications Integration, Using Oracle Integration Adapters”

  - by Lionel Dubreuil

  Don’t miss this “CON8642 - Cloud and On-Premises Applications Integration, Using Oracle Integration Adapters“ with Ramkumar Menon - Senior Product Manager, Oracle: Date: Wednesday, Oct 3 Time: 1:15 PM - 2:15 PM Location: Moscone South – 310 Oracle integration adapters in Oracle Fusion Middleware offer organizations a service-oriented approach to unlocking the information assets that have evolved in most IT environments. This session provides a detailed overview of their features and product architecture and an update on the 11g release. It also examines the changing application and technology landscape and how the integration adapters will continue to provide connectivity and harness information from diverse enterprise applications and technologies—both on-premises and in the cloud. Objectives for this session are to: Present an Oracle integration adapters overview Describe key use cases Provide an update on the 11g release and future roadmap Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Calibri","sans-serif";}

  Read the article

• Rethinking Oracle Optimizer Statistics for P6 Part 2

  - by Brian Diehl

  In the previous post (Part 1), I tried to draw some key insights about the relationship between P6 and Oracle Optimizer Statistics.  The first is that average cardinality has the greatest impact on query optimization and that the particular queries generated by P6 are more likely to use this average during calculations. The second is that these are statistics that are unlikely to change greatly over the life of the application. Ultimately, our goal is to get the best query optimization possible.  Or is it? Stability No application administrator wants to get the call at 9am that their application users cannot get there work done because everything is running slow. This is a possibility with a regularly scheduled nightly collection of statistics. It may not just be slow performance, but a complete loss of service because one or more queries are optimized poorly. Ideally, this should not be the case. The database optimizer should make better decisions with more up-to-date data. Better statistics may give incremental performance benefit. However, this benefit must be balanced against the potential cost of system down time.  It is stability that we ultimately desire and not absolute optimal performance. We do want the benefit from more accurate statistics and better query plans, but not at the risk of an unusable system. As a result, I've developed the following methodology around managing database statistics for the P6 database.  1. No Automatic Re-Gathering - The daily, weekly, or other interval of statistic gathering is unlikely to be beneficial. Quite the opposite. It is more likely to cause problems. 2. Smart Re-Gathering - The time to collect statistics is when things have changed significantly. For a new installation of P6, this is happening more often because the data is growing from a few rows to thousands and more. But for a mature system, the data is not changing significantly from week-to-week. There are times to collect statistics: New releases of the application Changes in the underlying hardware or software versions (ex. new Oracle RDBMS version) When additional user groups are added. The new groups may use the software in significantly different ways. After significant changes in the data. This may be monthly, quarterly or yearly.  3. Always Test - If you take away one thing from this post, it would be to always have a plan to test after changing statistics. In reality, statistics can be collected as often as you desire provided there are tests in place to verify that performance is the same or better. These might be automated tests or simply a manual script of application functions. 4. Have a Way Out - Never change the statistics without a way to return to the previous set. Think of the statistics as one part of the overall application code that also includes the source code--both application and RDBMS. It would be foolish to change to the new code without a way to get back to the previous version. In the final post, I will talk about the actual script I created for P6 PMDB and possible future direction for managing query performance. 

  Read the article

• Did I Inadvertently Create a Mediator in my MVC?

  - by SoulBeaver

  I'm currently working on my first biggish project. It's a frontend facebook application that has, since last Tuesday, spanned some 6000-8000 LOC. I say this because I'm using the MVC, an architecture I have never rigidly enforced in any of my hobby projects. I read part of the PureMVC book, but I didn't quite grasp the concept of the Mediator. Since I didn't understand and didn't see the need for it, my project has yet to use a single mediator. Yesterday I went back to the design board because of some requirement changes and noticed that I could move all UI elements out of the View and into its own class. The View essentially only managed the lifetime of the UI and all events from the UI or Model. Technically, the View has now become a 'Mediator' between the Model and UI. Therefore, I realized today, I could just move all my UI stuff back into the View and create a mediator class that handles all events from the view and model. Is my understanding correct in thinking that I have devolved my View as it currently is (handling events from the Model and UI) into a Mediator and that the UI class is what should be the View?

  Read the article

• Eclipse and NetBeans replacing embedded IDEs (part 2 and part 3)

  - by Geertjan

  After part 1, in Embedded Insights, the series Eclipse and NetBeans replacing embedded IDEs by principal analyst Robert Cravotta continues below. Many embedded tool developers are choosing to migrate their embedded development toolset to an open source IDE platform for a number of reasons. Maintaining an up-to-date IDE with the latest ideas, innovations, and features requires continuous effort from the tool development team. In contrast to maintaining a proprietary IDE, adopting an open source IDE platform enables the tool developers to leverage the ideas and effort of the community and take advantage of advances in IDE features much sooner and without incurring the full risk of experimenting with new features in their own toolsets. Both the Eclipse and NetBeans platforms deliver regular releases that enable tool developers to more easily take advantage of the newest features in the platform architecture.  Read more of part 2 here, in an article published Thursday, May 17th, 2012. Both the NetBeans and Eclipse projects began as development environments and both evolved into platforms that support a wider array of software products. Both platforms have been actively supported and evolving open source projects that have competed and coexisted together for the past decade and this has led to a level a parity between the two platforms. From the perspective of a tool developer, applications are built the same way on either platform – the difference is in the specific terminology and tools. Read more of part 3 here, in an article published Tuesday, June 12th, 2012. And, as a bonus in this blog entry, here's how to get started creating an IDE on the NetBeans Platform:  http://netbeans.dzone.com/how-to-create-commercial-quality-ide

  Read the article

• Don’t string together XML

  - by KyleBurns

  XML has been a pervasive tool in software development for over a decade.  It provides a way to communicate data in a manner that is simple to understand and free of platform dependencies.  Also pervasive in software development is what I consider to be the anti-pattern of using string manipulation to create XML.  This usually starts with a “quick and dirty” approach because you need an XML document and looks like (for all of the examples here, we’ll assume we’re writing the body of a method intended to take a Contact object and return an XML string): return string.Format("<Contact><BusinessName>{0}</BusinessName></Contact>", contact.BusinessName);   In the code example, I created (or at least believe I created) an XML document representing a simple contact object in one line of code with very little overhead.  Work’s done, right?  No it’s not.  You see, what I didn’t realize was that this code would be used in the real world instead of my fantasy world where I own all the data and can prevent any of it containing problematic values.  If I use this code to create a contact record for the business “Sanford & Son”, any XML parser will be incapable of processing the data because the ampersand is special in XML and should have been encoded as &amp;. Following the pattern that I have seen many times over, my next step as a developer is going to be to do what any developer in his right mind would do – instruct the user that ampersands are “bad” and they cannot be used without breaking computers.  This may work in many cases and is often accompanied by logic at the UI layer of applications to block these “bad” characters, but sooner or later someone is going to figure out that other applications allow for them and will want the same.  This often leads to the creation of “cleaner” functions that perform a replace on the strings for every special character that the person writing the function can think of.  The cleaner function will usually grow over time as support requests reveal characters that were missed in the initial cut.  Sooner or later you end up writing your own somewhat functional XML engine. I have never been told by anyone paying me to write code that they would like to buy a somewhat functional XML engine.  My employer/customer’s needs have always been for something that may use XML, but ultimately is functionality that drives business value. I’m not going to build an XML engine. So how can I generate XML that is always well-formed without writing my own engine?  Easy – use one of the ones provided to you for free!  If you’re in a shop that still supports VB6 applications, you can use the DomDocument or MXXMLWriter object (of the two I prefer MXXMLWriter, but I’m not going to fully describe either here).  For .Net Framework applications prior to the 3.5 framework, the code is a little more verbose than I would like, but easy once you understand what pieces are required:             using (StringWriter sw = new StringWriter())             {                 using (XmlTextWriter writer = new XmlTextWriter(sw))                 {                     writer.WriteStartDocument();                     writer.WriteStartElement("Contact");                     writer.WriteElementString("BusinessName", contact.BusinessName);                     writer.WriteEndElement(); // end Contact element                     writer.WriteEndDocument();                     writer.Flush();                     return sw.ToString();                 }             }   Looking at that code, it’s easy to understand why people are drawn to the initial one-liner.  Lucky for us, the 3.5 .Net Framework added the System.Xml.Linq.XElement object.  This object takes away a lot of the complexity present in the XmlTextWriter approach and allows us to generate the document as follows: return new XElement("Contact", new XElement("BusinessName", contact.BusinessName)).ToString();   While it is very common for people to use string manipulation to create XML, I’ve discussed here reasons not to use this method and introduced powerful APIs that are built into the .Net Framework as an alternative.  I’ve given a very simplistic example here to highlight the most basic XML generation task.  For more information on the XmlTextWriter and XElement APIs, check out the MSDN library.

  Read the article

• Standard/Compliance for web programming?

  - by MarkusK

  I am working with developers right now that write code the way they want and when i tell them to do it other way they respond that its just matter of preference how to do it and they have their way and i have mine. I am not talking about the formatting of code, but rather of way site is organized in classes and the way the utilize them. and the way they create functions and process forms etc. Their coding does not match my standards, but again they argue that its matter of preference and as long as goal achieved the can be different way's to do it. I agree but their way is proven to have bugs and we spend a lot of time going back and forth with them to fix all problems security or functionality, yet they still write same code no matter how many times i asked them to stop doing certain things. Now i am ready to dismiss them but friend of mine told me that he has same exact problem with freelance developers he work with. So i don't want to trade one bad apple for another. Question is is there some world wide (or at least europe and usa) accepted standard or compliance on how write secure web based applications. What application architecture should be for maintainable application. Is there are some general standard that can be used for any language ruby php or java govern security and functionality and quality of code? Or at least for PHP and MySQL i use for my website. So i can make them follow this strict standard and stop making excuses.

  Read the article

• What exactly are Link Relation Values?

  - by bckpwrld

  From REST in Practice: Hypermedia and Systems Architecture: For computer-to-computer interactions, we advertise protocol information by embedding links in representations, much as we do with the human Web. To describe a link's purpose, we annotate it. Annotations indicate what the linked resource means to the current resource: “status of your coffee order” “payment” and so on. We call such annotated links hypermedia controls, reflecting their enhanced capabilities over raw URIs. ... link relation values, which describe the roles of linked resources ... Link relation values help consumers understand why they might want to activate a hypermedia control. They do so by indicating the role of the linked resource in the context of the current representation. I interpret the above quotes as saying that Hypermedia control contains both a link to a resource and an annotation describing the role of linked resource in the context of the current representation. And we call this annotation ( which describes the role of linked resource ) a link relation value. Is my assumption correct or does the term link relation value actually describe something different? Thank you

  Read the article

• Simplifying data search using .NET

  - by Peter

  An example on the asp.net site has an example of using Linq to create a search feature on a Music album site using MVC. The code looks like this - public ActionResult Index(string movieGenre, string searchString) { var GenreLst = new List<string>(); var GenreQry = from d in db.Movies orderby d.Genre select d.Genre; GenreLst.AddRange(GenreQry.Distinct()); ViewBag.movieGenre = new SelectList(GenreLst); var movies = from m in db.Movies select m; if (!String.IsNullOrEmpty(searchString)) { movies = movies.Where(s => s.Title.Contains(searchString)); } if (!string.IsNullOrEmpty(movieGenre)) { movies = movies.Where(x => x.Genre == movieGenre); } return View(movies); } I have seen similar examples in other tutorials and I have tried them in a real-world business app that I develop/maintain. In practice this pattern doesn't seem to scale well because as the search criteria expands I keep adding more and more conditions which looks and feels unpleasant/repetitive. How can I refactor this pattern? One idea I have is to create a column in every table that is "searchable" which could be a computed column that concatenates all the data from the different columns (SQL Server 2008). So instead of having movie genre and title it would be something like. if (!String.IsNullOrEmpty(searchString)) { movies = movies.Where(s => s.SearchColumn.Contains(searchString)); } What are the performance/design/architecture implications of doing this? I have also tried using procedures that use dynamic queries but then I have just moved the ugliness to the database. E.g. CREATE PROCEDURE [dbo].[search_music] @title as varchar(50), @genre as varchar(50) AS -- set the variables to null if they are empty IF @title = '' SET @title = null IF @genre = '' SET @genre = null SELECT m.* FROM view_Music as m WHERE (title = @title OR @title IS NULL) AND (genre LIKE '%' + @genre + '%' OR @genre IS NULL) ORDER BY Id desc OPTION (RECOMPILE) Any suggestions? Tips?

  Read the article

• Domain model integration using JSON capable DTOs

  - by g-makulik

  I'm a bit confused about architectural choices for the java/web-applications world. The background is I have a system with certain hardware components (that introduce system immanent active behavior) and a configuration database for system meta and HW-components configuration data (these are even usually self contained, since the HW-components persist configuration data anyway). For realization of the configuration/status data exchange protocol with the HW-components we have chosen the Google Protobuf format, which works well for the directly wired communication with these components. Now we want to develop an abstract model (domain model) for those HW-components and I have the feeling that a plain Java class model would fit best for this (c++ implementation seems to have too much implementation/integration overhead with viable language-bridge interfaces). Google Protobuf message definitions could still serve well to describe DTO objects used to interact with a domain model API. But integrating Google Protobuf messages client side for e.g. data binding in the current view doesn't seem to be a good choice. I'm thinking about some extra serialization features, e.g. for JSON based data exchange with the views/controllers. Most lightweight solutions seem to involve a python based presentation layer using JSON based data transfer (I'm at least not sure to be fully informed about this). Is there some lightweight (applicable for a limited ARM Linux platform) framework available, supporting such architecture to realize a web-application?

  Read the article

< Previous Page | 491 492 493 494 495 496 497 498 499 500 501 502  | Next Page >