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• Are nested classes under-rated?

  - by Aaron Anodide

  I'm not trying to say I know something everyone else doesn't but I've been solving more and more designs with the use of nested classes, so I'm curious to get a feeling for the acceptablilty of using this seemingly rarely used design mechanism. This leads me to the question: am I going down an inherintly bad path for reasons I'll discover when they come back to bite me, or are nested classes maybe something that are underrated? Here are two examples I just used them for: https://gist.github.com/3975581 - the first helped me keep tightly releated heirarchical things together, the second let me give access to protected members to workers...

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• What do you do when one think the code isn't complicated enough?

  - by Chris

  After six months of development on a project, our stakeholders have had a "gut check" and have decided that the path that we've been walking (a custom designed application framework and data access layer) is holding us (the developers) back from quickly developing the features they would like to see. After several days of debate management and the development team have decided to scrap the current incarnation and start over using ASP.net MVC, with Entity Framework as the bases of the a 'quick and dirty', lets just get it done project. In days following, our senior developer who has never worked with MVC or Entity Framework has finally gotten into a sample project and done some work. His take on ASP.net MVC, "this is not software engineering". So my question is this; what do you do, when one doesn't think the code is complicated enough?

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• Multiple vulnerabilities in Pidgin

  - by RitwikGhoshal

  CVE DescriptionCVSSv2 Base ScoreComponentProduct and Resolution CVE-2010-4528 Improper Input Validation vulnerability 4.0 Pidgin Solaris 10 SPARC: 147992-02 X86: 147993-02 CVE-2011-1091 Denial of service(DOS) vulnerability 4.0 CVE-2011-2943 Denial of service(DOS) vulnerability 4.3 CVE-2011-3184 Resource Management Errors vulnerability 4.3 CVE-2011-3185 Improper Input Validation vulnerability 9.3 CVE-2011-4601 Improper Input Validation vulnerability 5.0 CVE-2011-4602 Improper Input Validation vulnerability 5.0 CVE-2011-4603 Improper Input Validation vulnerability 5.0 CVE-2011-4922 Information Exposure vulnerability 2.1 CVE-2011-4939 Permissions, Privileges, and Access Controls vulnerability 6.4 CVE-2012-1178 Resource Management Errors vulnerability 5.0 This notification describes vulnerabilities fixed in third-party components that are included in Oracle's product distributions.Information about vulnerabilities affecting Oracle products can be found on Oracle Critical Patch Updates and Security Alerts page.

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• Is there a way to determine if a database has been altered, then to push new data to the Application

  - by TeamGB

  All our (my company) currently applications pull information from that database, is their a way to get the following types of databses to either push data or push an event to allow the application to pull data. Access SQL Oracle File systems (Files and folders) The issue today is that most of our application spend a large amount of time constantly looking at databases and file system checking to see if data has changed . It would be better for the database to inform the application when data has changed. Are there tools within Visual studio to allow this or are there tools within the database / filesystem to do this? All ready asked this on stack overflow but go no answer. I've been doing some more research but I cant seem to get any further. My manager has asked to investigate it as it would mean our applications are much quicker and efficient.

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• How to recover disk and files after 10.04 boot failure?

  - by K R Jawaharlal

  I have a 1TB HDD with four Windows XP partitions and a 120GB HDD with 10.04. While working in Ubuntu, due to delay and failure to shutdown, I switched off the system. Next it failed to boot in Ubuntu and stopped at initramfs. After that, I tried to repair from the booting stage. By mistake instead of hdd no I used partition no. This damaged the Windows also. Then Windows XP was reloaded and is running. When I boot with 12.04, it is able to detect the 120GB HDD, but, it is unable to mount. I am unable to access the files. I would like to revive the disk and recover files. Would appreciate any help.

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• Overview of XSLT

  - by kaleidoscope

  XSLT (Extensible Stylesheet Language Transformations) is a declarative- XMLbased language used for the transformation of XML documents into other XML documents. Using XSLT , the original document does not changed; rather, a new document is created based on the content of an existing one. XSLT is developed by the World Wide Web Consortium (W3C).   Using XSLT we can transform source xml file into another xml file, word file or Excel file.    XSLT Functions : -   There are the following built - in XSLT functions :   Name Description current() Returns the current node document() Used to access the nodes in an external XML document element-available() Tests whether the element specified is supported by the XSLT processor format-number() Converts a number into a string function-available() Tests whether the function specified is supported by the XSLT processor generate-id() Returns a string value that uniquely identifies a specified node key() Returns a node-set using the index specified by an <xsl:key> element system-property() Returns the value of the system properties unparsed-entity-uri() Returns the URI of an unparsed entity   For more information –   http://www.w3schools.com/xsl/default.asp   Technorati Tags: Ritesh, Overview of XSLT

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• why does our network printer not show up on some of our macs, but does show up on others? [on hold]

  - by peter

  We lost power in our building and now cannot get our HP laser jet 5200 to be recognized by half of our computers. We are all Macs, some running OS 10.7.5 can see the printer, others running 10.7.5 cannot, and those running 10.8.5 and 10.9 cannot. We've re-booted the router, turned off and on printer and macs—no go. The printer displays an IP address (dynamically assigned) but we can't access it. Tried to see it using CUPS—same story, can see it on some systems, not on others. Any thoughts?

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• Using "public" vars or attributes in class calls, functional approach

  - by marw

  I was always wondering about two things I tend to do in my little projects. Sometimes I will have this design: class FooClass ... self.foo = "it's a bar" self._do_some_stuff(self) def _do_some_stuff(self): print(self.foo) And sometimes this one: class FooClass2 ... self.do_some_stuff(foo="it's a bar") def do_some_stuff(self, foo): print(foo) Although I roughly understand the differences between functional and class approaches, I struggle with the design. For example, in FooClass the self.foo is always accessible as an attribute. If there are numerous calls to it, is that faster than making foo a local variable that is passed from method to method (like in FooClass2)? What happens in memory in both cases? If FooClass2 is preferred (ie. I don't need to access foo) and other attributes inside do not change their states (the class is executed once only and returns the result), should the code then be written as a series of functions in a module?

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• Apache FilesMatch regexp: Can it match by the cache buster 10 digit (rails generated) following the filename?

  - by ynkr

  According to the apache FilesMatch docs: The FilesMatch directive provides for access control by filename Basically, I only want to set an expires header for resources that have a 10 digit "cache buster" id appended to the name. So, here is my attempt at such a thing in my httpd.conf <FilesMatch "(jpg|jpeg|png|gif|js|css)\?\d{10}$"> ExpiresActive On ExpiresDefault "now plus 5 minutes" </FilesMatch> And here is an example of a resource I want to match: http://localhost:3000/images/of/elvis/eating-a-bacon-sandwich.png?1306277384 Now obviously my FilesMatch regexp is not matching so I am guessing 1 of 2 things is happening. Either my regexp is wonky or the '?1231231231' cache busting part of the file is not part of what apache considers part of the filename. Can anybody confirm and/or give me a way to cache only those resources that will not persist beyond the next deploy?

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• possible to use an IP derived from Dynamic DNS in htaccess IP allow/deny commands?

  - by user115745

  On a website I manage, I want to use an .htaccess file to allow access to a certain administrative directory only from my home IP address, which is dynamically assigned by my ISP and therefore changes -- not regularly, but it does happen. I also have an account from DynDNS and have one of the auto-update clients making sure it always points to my actual home IP address. I don't actually host anything at home; I just have set up the Dynamic DNS account. Is there any way to combine these features: that is, is it possible write the .htaccess allow/deny commands at my outside webhost in a way that my home IP address is not hard coded into the command, but instead is somehow derived from the Domain Name that the DynDNS has assigned me, by doing a real-time lookup every time the directory's .htaccess file is hit? Thank you.

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• Is there a way to develop desktop software using PHP?

  - by user1492018

  I have to develop a real estate marketing CRM software for my client - where the application is installed on desktop but can also be accessed from web. 2 reasons why they want the application to run from desktop : So that it can work with/without internet connection They don't want their complete data to be online They want to access few of the data like property listing & inquiries (managed from desktop application) from their website through secure login & password. The data that is entered in desktop application should be automatically synchronized with the website application. I was wondering if there is a way to develop this kind of software using PHP & MySQL. If yes, it will be great if anyone can provide me the referral link.Else please suggest, which language should I use.

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• How do I create a wireless ad-hoc network?

  - by Vinaychalluru

  Hello., Whenever i need to copy some files and couldnt find a pen drive, [ i dont have bluetooth enabled in my lap], I create a new ad hoc (wireless) network in windows and share the necessary files on the network and share files with the other system. Now, i want to do the same with Ubuntu. But, i couldn't. I could create a new network, but i am not able to chare or send or even dont know how to access the system connected to the network. So, how can i do this? Thanks

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• "An upgrade from 'precise' to 'oneiric' is not unsupported with this tool" error while upgrading

  - by tas

  A brief electrical outage interrupted my 12.04 upgrade. After many tries, which included trying to upgrade from a command line, I was able to access Ubuntu screens again. I find that the 12.04 upgrade was indeed not completed; I am still running 11.10. However, Update Manager does not give me the option of installing 12.o4 now. And, when I run Update Manager, I am asked if I want to execute a "partial install." When I answer "yes," I receive the message above. Besides a clean install, any ideas about what can I do to upgrade to 12.4?

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• Unlock the Value of Big Data

  - by Mike.Hallett(at)Oracle-BI&EPM

  Partners should read this comprehensive new e-book to get advice from Oracle and industry leaders on how you can use big data to generate new business insights and make better decisions for your customers. “Big data represents an opportunity averaging 14% of current revenue.” —From the Oracle big data e-book, Meeting the Challenge of Big Data You’ll gain instant access to: Straightforward approaches for acquiring, organizing, and analyzing data Architectures and tools needed to integrate new data with your existing investments Survey data revealing how leading companies are using big data, so you can benchmark your progress Expert resources such as white papers, analyst videos, 3-D demos, and more If you want to be ready for the data deluge, Meeting the Challenge of Big Data is a must-read. Register today for the e-book and read it on your computer or Apple iPad.  

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• session persisting problem after system restart

  - by user100124

  Is there a way to prevent session id restore on startup/restart of user's system? We are using a asp.net app and I am able to login and access the site. For the first time session id is created and stored in cookies. Problem: But if I restart my system without signing out, the session is still alive. How can I prevent this? from server side. I can try to delete cookies but it is not practical, as each user will have different preferences.

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• How to completely remove Ubuntu?

  - by les02jen17

  I installed Ubuntu using Wubi installer, but I couldnt boot to it. So I uninstalled it on the Control Panel. Then I tried the full installation wherein it boots to the Ubuntu environment. After installing Ubuntu there, I couldnt boot to my Windows 7 anymore! So in an attempt to salvage the whole thing, I inserted the Ubuntu CD again and chose Erase Ubuntu and Reinstall. (I was wondering, why wasn't there an option to just "Erase Ubuntu"?) I did that though, and I got my Windows 7 back. But upon checking my drives via the "Create your own partition scheme" (not sure if it's the exact words) I saw that one of my partitions still has Ubuntu on it, and there's no way I can delete it if I don't overwrite another Ubuntu! I can't access that partition on windows 7 either! Need help!

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• Desktop Fun: Ocean Life Wallpaper Collection

  - by Asian Angel

  Our oceans are full of beauty and wonder, a separate world waiting for us to explore its’ mysteries and stir our imaginations. Bring the wonders of the underwater world to your desktop with our Ocean Life Wallpaper collection. Note: Click on the picture to see the full-size image—these wallpapers vary in size so you may need to crop, stretch, or place them on a colored background in order to best match them to your screen’s resolution. 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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• Low display resolution under Ubuntu 12.04

  - by Chinouk

  I had some problem after installing new drivers for Nvidia. After having followed the instructions answered to this question, I now only have the Nouveau open-source driver. I can have access to my desktop, but I'm stuck with a 640x480 (4:3) resolution. No other resolution is proposed in the dropdown list of the "Displays" utility. I tried installing the two Nvidia drivers suggested in the "Additional Drivers" utility, but each one broke my display again. Now that I have reverted back to Nouveau again, what should I do to get a higher resolution ?

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• Accessing Master Page Controls

  - by Bunch

  Sometimes when using Master Pages you need to set a property on a control from the content page. An example might be changing a label’s text to reflect some content (e.g. customer name) being viewed or maybe to change the visibility of a control depending on the rights a user may have in the application. There are different ways to do this but this is the one I like. First on the code behind of the Master Page create the property that needs to be accessed. An example would be: Public Property CustomerNameText() As String     Get         Return lblCustomerName.Text     End Get     Set(ByVal value As String)         lblCustomerName.Text = value     End Set End Property Next in the aspx file of the content page add the MasterType directive like: <%@ MasterType VirtualPath="~/MasterPages/Sales.master" %> Then you can access the property in any of the functions of the code behind of the aspx content page. Master.CustomerNameText = “ABC Store” Technorati Tags: ASP.Net,VB.Net

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• eSTEP TechCast - June 2014 Material available

  - by uwes

  Dear Partners,We would like to extend our sincere thanks to those of you who attended our TechCast on "Solaris 11.2 Beta -  What's New!".The materials (presentation, replay) from the TechCast are now available for all of you via our eSTEP portal.  You will need to provide your email address and the pin below to access the downloads. Link to the portal is shown below.URL: http://launch.oracle.com/PIN: eSTEP_2011The material can be found under tab eSTEP TechCast.  Feel free to explore also the other delivered TechCasts and more useful information under the Download and Links tab. Any feedback is appreciated to help us improve the service and information we deliver.Thanks and best regards,Partner Systems Enablement EMEA

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• Can't open Windows 8 after installing ubuntu 12.04

  - by Pyttar

  Yesterday, I tried ubuntu 12.04 LTS and I liked it, so I installed it in my computer with Windows 8. I managed to create a disk partition in Windows and I named it U:\UBUNTU. Then I installed Ubuntu inside this partition, but now, when I try to enter in my Windows 8, it gives me an error message: error: Secure Boot forbids loading module from (hd0,gpt5)/boot/grub/ntfs.mod. error: no such device: 2402319002316706 error: unknow command 'drivemap'. error: invalid EFI file path. Press any key to continue... What can I do? Please I need urgent help, I need to access to Windows 8 and I don't want to lose any data... I checked for the Windows disk and I can se there's all my information there, so, I didn't lose anything. Thanks.

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• Develop for Desktop and Mobile at once

  - by Hola Soy Edu Feliz Navidad

  I need to develop a programm that is going to read some information from a special USB device and access information via Web Socket (socket.io preferred). My client wants to deploy this app on Mac OS X, Windows, Android and iOS. I was looking for development softwares valid for both: Desktop and Mobile, but it is still not clear for me and that´s what I found. Unity - Looks very good but to create a native plugin for reading from the device it lloks like I need the PRO edition. Adobe Air - Looks good but I´m not sure if I can write Native Plugins for all wanted platforms. LiveCode - Still inmature (lots of bugs) and I don´t know if it is possible to write native plugins for my device. Is there any other good platform for my case? What´s your option?

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• How to teach your users/customers to send better error descriptions

  - by ckeller

  I often have to deal with customers or users which are reporting errors in applications. Most of the time their content is something useless as ERROR!!! x does not work without much more information. For resolving the issue I have to request every single detail of them, which often is more time consuming than fixing the issue itself. Other send information in formats which are not ideal, like screenshots (of data records, not of errors) although they could send a link (we have access to the systems) and so on. How do you tell your users/customers to describe the problems with more details so that the whole process could be easier for both sides? edit This question is more about the social skills, than how to achieve programmatic collection of logs and error information. I'm aware of the fact that this should be part of good software design.

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• java application architecture

  - by LostMohican

  We have to write an administration panel for many customers. But we want to have just one administration panel, and use it in various projects. This admin panel will have basic components such as access control logic, maker-checker system in changes, user logging and etc. It will also have reporting for the customer, logs of transaction of the customer (which can vary according to the industry such as mobile banking, banking, ticket sales). These components may have to be modified according to the business. So we are thinking about the architecture here, Is it OK to use jars of every basic components, and bring them together on a glue application? Or should we build each component as WARs and make interfaces between them? If there are any more ideas, it will be appreciated.

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• Writing scripts for Visual Studio project

  - by oillio

  What is the best way to write and run small scripts and tasks that are specific to a particular .Net project? Such things as configuring a database or confirming proper connections to servers. In Ruby, I would build rake tasks for this sort of thing. I am currently using unit tests for these tasks as they are easy to run within VS and they have access to all the necessary libraries and project code. However, this is not really their intended purpose and, with the dropping of Test Lists in VS 2012, it does not work nearly as well as it used to. Is there a better solution than writing a console project to handle these little code snippets I need to run periodically?

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