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• C# Creating A Error Checking Class?

  - by Soo

  Hi StackOverflow, I'm very new to OOP, and in the program I'm working on, I have an Utilities class that contains some general methods. Should I include my error checking in the Utilities class or should I create a new class just for error checking?

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• how to access thread/busy thread counts within a jee filter under tomcat

  - by jeje

  Hi, I'd like to access my servlet container's thread/busy thread counts within a filter under tomcat. Is this a part of the jee standard? Or does it have to be tomcat specific? Is there a more general server load measurement?

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• Which languages are dynamically typed and compiled (and which are statically typed and interpreted)?

  - by Skilldrick

  In my reading on dynamic and static typing, I keep coming up against the assumption that statically typed languages are compiled, while dynamically typed languages are interpreted. I know that in general this is true, but I'm interested in the exceptions. I'd really like someone to not only give some examples of these exceptions, but try to explain why it was decided that these languages should work in this way.

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• Does gcc's STL support rvalue reference already?

  - by Bear

  Hi I know Visual Studio 2010's STL has been rewritten to support rvalue reference to boost its performance a lot. I am curious that STL of gcc 4.4 (and above) does support it? Thanks.

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• How do I use the information about exceptions a method throws in .NET in my code?

  - by dotnetdev

  For many methods in .NET, the exceptions they can potentially throw can be as many as 7-8 (one or two methods in XmlDocument, Load() being one I think, can throw this many exceptions). Does this mean I have to write 8 catch blocks to catch all of these exceptions (it is best practise to catch an exception with a specific exception block and not just a general catch block of type Exception). How do I use this information? Thanks

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• In SQL Server changing column varchar(255) nvarchar

  - by JD

  Hi, I am using SQL server 2008 express and some of our columns are defined as varchar(255). Should I convert these columns to NvarChar(255) or nvarchar(max)? The reason I ask is I read that nvarchar(255) for unicode characters would actually store 1/2 the number of characters (since unicode characters are 2 bytes) whereas 255 with varchar() would allow me to store 255 characters (or is it 255 - 2 for the offset). Would there be any performance hits using nvarchar(max)? JDs

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• When are child views added to Layout/ViewGroup from XML

  - by JohnTube

  My question is : I want to know when does a xLayout (or ViewGroup in general) add a child view from XML ? And by "when" I mean at what point of code, in what "pass" of the "traversal" of the UI toolkit ? Which method of xLayout or ViewGroup should I override ? I have done my homework : I have watched the "Writing Custom Views For Android" presented (by Adam Powell and Romain Guy) in the last Google I/O and I have read Adam Powell comments on this Google+ post.

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• How do I move from being a software developer to being a software architect?

  - by Nestor

  I mean... Should I start programming less and designing more? Should I stop reading programming books, and start reading more books about pattern designs, etc? Should I stop focusing primarily on Microsoft technologies and open up my horizons with other technologies (in order to get a broader perspective)? How should I change my mind set in general (perhaps less detail oriented) ? etc I'm looking for concrete advice, especially from your own experience!

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• cmake source and out-of-source navigation

  - by idimba

  Hi, cmake advises to use out-of-source builds. While in general I like the idea I find it not comfortable to navigate from out-of-source sub directory to the corresponding source directory. I frequently need the code to perform some actions with code (e.g. grep, svn command etc.). Is there an easy way in shell to navigate from out-of-source sub directory to the corresponding source directory? Thanks Dima

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• PostgreSQL or MS SQL Server?

  - by mmiika

  I'm considering using PostgreSQL with a .Net web app. Basically 3 reasons: Mature Geo Queries Small footprint + Linux Price I'm wondering a bit about tools though, SQL Server Profiler and query plans and performance monitors have been helpful. How is this world with Postgres? Some other things I should consider? Edit: Will most likely use NHibernate as ORM

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• packaging and distributing Python code as executables

  - by user248237

  How can I compile my python module into an executable, and distribute it in a way that doesn't require the user to download all the external Python packages that the module I wrote uses? Aside from that, is there a general guy on packaging and distributing python code? i.e. going from a script/module to someone that's user-friendly and can be run, ideally cross-platform (at least between unix and mac). thanks.

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• pure as3 benefits to compiling with flex4 instead of flex3?

  - by jedierikb

  If I have a pure as3 project that I have been compiling with flex3 from mxmlc, is there any reason to switch to using the mxmlc with flex4? I can use all of the flash 10 language features like Vector, 3D, etc., so that is not a reason to switch (or is there something I can't do?). But maybe there is a performance boost? Or is the exact same compiling tool and the flex code base is the only difference?

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• speed up wamp server + drupal on windows vista

  - by Andrew Welch

  Hi, My localhost performance with drupal six is pretty slow. I found a solution to add a # before the :: localhost line of the system32/etc/hosts file but this was something I had already done and didn't help much. does anyone know of any other optimisations that might work? tHanks Andy

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• JavaScript Encapsulation / JQuery

  - by Chris

  I am trying to figure out how to keep my page variables in my application from being defined globally. I've come up with a few methods but am wondering if there is a general standard approach people use. I've got my plugin design pattern down using this approach: http://www.virgentech.com/blog/2009/10/building-object-oriented-jquery-plugin.html. But I'm just not sure how to handle my page level encapsulation.

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• how do you monitor your lamp server?

  - by ajsie

  i wonder how one can monitor a lamp server (ubuntu) on production. are there any standard tools for this to watch the server performance/load in realtime via the browser? how mysql, linux, apache etc are doing... what is best practice regarding this? any tutorials would be great. thanks!

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• How to run multiple versions of Symfony PHP Framework

  - by Jon Winstanley

  I have several web projects built with Symfony v1.0, but I am excited by the new features in Symfony version 1.4 (Improved security, native email support and improved performance). How can I continue to develop my 1.0 projects but also create a testing environment for version 1.4?

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• What are the Drawbacks of large binaries?

  - by sum1stolemyname

  I ask since a project I work on generates a single, monolithic DLL of about 50 MB size. Does a large library like this one impede performance, or can it bring other gotchas?

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• Change ClickOnce Publich Folder Location

  - by LnDCobra

  How can I change the Publishing Folder of already deployed applications? E.G. Currently the path is \\Server1\App but I want to change this to \\Server2\App For performance reasons (Server1 is becoming overloaded) and therefore I'm planning to move majority of our shared folders including the Apps folder to a different server

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• Good-looking Java Swing Look&Feel?

  - by eric

  I'm working on an open-source Java Web Start application, and I'd like to give it a consistent theme across platforms. Metal is totally ugly, and I'm not particularly happy with Substance (esp. performance). What are the best Swing Look&Feel options out there today?

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• JAXB unmarshal exclude specific element

  - by zigomir

  Hi everyone! I know for @XmlTransient annotation, but sometimes I need this element and in other use cases I really have to prevent it from unmarshaling, because it contains base64 text. So I need to exclude it because performance problems. Is there any way to dynamicly exclude one element from unmarshaling with JAXB?

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• Monitor file disk activity programmatically (Windows)

  - by iulianchira

  In Windows 2008R2, in Resource Monitor in the Disk Acitivity section I can see the number of bytes read from/written into files. How can I do this in a programatic manner, prefferably using C# (or Win32 API)? I have looked into WMI and various performance counters, however I cannot figure out if there is something which suits my needs.

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• I get 2014 Cannot execute queries while other unbuffered queries are active when doing exec with PDO

  - by Itay Moav

  I am doing a PDO::exec command on multiple updates: $MyPdo->setAttribute(PDO::MYSQL_ATTR_USE_BUFFERED_QUERY,true); $MyPdo->exec("update t1 set f1=1;update t2 set f1=2"); I am doing it inside a transaction, and I keep getting: SQLSTATE[HY000]: General error: 2014 Cannot execute queries while other unbuffered queries are active. Consider using PDOStatement::fetchAll(). Alternatively, if your code is only ever going to run against mysql, you may enable query buffering by setting the PDO::MYSQL_ATTR_USE_BUFFERED_QUERY attribute. those are the only query/ies

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• List of valid characters for the fragment identifier in an URL?

  - by sohtimsso1970

  I'm using the fragment identifier to create a permalink for AJAX events in my web app similar to this guy. Something like: http://www.myapp.com/calendar#filter:year/2010/month/5 I've done quite a bit of searching but can't find a list of valid characters for the fragment idenitifer. The W3C spec doesn't offer anything. Do I need to encode the characters the same as the URL in has in general? There doesn't seem to be any good information on this anywhere.

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• alternatives to simpleXML for parsing xml files with PHP

  - by choise

  Hi, i just want to know if there are any alternatives to simpleXML for parsing XML Data with PHP. For example if simpleXML module is not loaded or even if there is a lib/class out there that has a better performance then SimpleXML.

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• What software has been written in Scheme?

  - by skiphoppy

  I loved Scheme in the programming languages concepts class I took several years ago. Ever since reading what Paul Graham has to say about Lisp, I've been intending to go back and pick Scheme up again and see if it'll improve my programming in general. Are there any well-known works of software written in Scheme? Open source packages? Websites?

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