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• How to group a database write and spreadsheet write in single "transaction"

  - by WhyGeeEx

  I have a Java program that writes results to both a DB (SQL Server) and a spreadsheet (POI), and it would be best if neither is written to if there's an error with either. It would be a lot worse if the spreadsheet was produced and then an error happened while saving to the DB, so I'm doing the DB-write first. Even so, I'm wondering if someone knows of a way to guarantee they both succeed or fail as a unit. Thanks!

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• Creating flash slideshlow c#

  - by np

  Hi We have a few flash files f1.swf, f2.swf .... fn.swf. We would like to be able to display a slide show of these different files in c# using winforms. Each flash file is a slideshow by itself. At the end of slideshow for f1 we need to display a message and ask the user to repeat it or continue. Just wondering if anyone has any suggestions how to achieve this. Thanks N

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• Checking if a file exists in the App folder.

  - by Neurofluxation

  Hey you lot (again), I was wondering if anyone knew a fast and easy way to see if a file (namely a textfile), exists inside the App folder? And how to handle an Error correctly if the file doesn't exist. Help would be grand! :) ty!

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• Python begineer confused by a piece of code

  - by Protean

  I understand the gist of the code, that it forms permutations; however, I was wondering if someone could explain exactly what is going on in the return statement. def perm(l): sz = len(l) print (l) if sz <= 1: print ('sz <= 1') return [l] return [p[:i]+[l[0]]+p[i:] for i in range(sz) for p in perm(l[1:])]

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• Applescript iTunes dictionary explanations

  - by jldupont

  I am wondering what the different color schemes mean in the following: What does the blue C tag mean? and the purple one? Disclaimer: absolute OSX newbie here... please be gentle ;-)

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• Any experiences with xp-dev.com?

  - by jayrdub

  I know there are a number of threads recommending xp-dev.com, but I'm wondering if anyone has had any reason not to recommend the service?

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• Create a jQueryUI 1.8 Button menu

  - by Brian M. Hunt

  Now that jQueryUI 1.8 is out, I was browsing through the updates and came across the new Button widget, and in particular one of the demos with the SplitButton with a dropdown. This demo seems to suggest that the Button widget could be used to create a dropdown menu here. As a matter of discussion, I was wondering what ways there are to go about creating a dropdown menu with this new Button widget. Cheers.

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• H264 RTP packet dump and generating quicktime files

  - by MAC

  Hi, I have a dump of RTP packets of streaming H264 videos that i captured using libpcap. I was wondering if anyone knows of a tool that can generate a playable video file from that. Thanks

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• how to copy a sqlite3 table to another file in python

  - by james

  hey i was wondering how i could make a copy of a sqlite3 table and save it to a seperate file in python. im confused as in python your sqlite3 object can only be connected to one database so how would i make it save to a seperate database? the reason i want to do this is in sqlite3 the database file size can never get smaller, and ive made alot of changes so i want just copy this table to another file which wont have all the extra empty space and then delete the origonal database thanks guys

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• What are the real-world applications of huffman coding?

  - by jcyang

  I am told that Huffman coding is used as loseless data compression algorithm but also am told that real data compress software do not employ huffman coding,cause if the keys are not distributed decentralized enough,the compressed file could be even larger than the orignal file. This leave me wondering are there any real-world application of huffman coding? thanks.

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• Where do filesystems like Reiser, NFS, etc store the file tables?

  - by Mike Curry

  Where do filesystems like Reiser, NFS, etc store the file tables? We're looking at writing our own filesystem, and wondering if we should use a single file to hold it all using btree's or use something out there. Any advice? This is more a learning exercise than anything.

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• How to externally configure logging in a Flex app?

  - by Christophe Herreman

  Hi, I was wondering what people are using for externally configuring logging in a Flex app. Are there any ready baked solutions out there, similar to Log4J's configuration via properties files for instance? If there are, do these work directly with the Flex logging API or are they part of a separate logging library?

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• What if I change my Android App price to free and after i change idea?

  - by Skatephone

  Hi, i have read on the market support that "If you have previously published an application for free, you cannot change it to have a price." But I was wondering, if at the contrary I change my app from payed to free and some time after i want to re change it from free to payed! Can I? And if yes, Have I to wait some period (I have read something like this in the contract)? Tnk's Valerio From Italy

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• How to list Activities which match an intent?

  - by Adam

  I have a few separate applications which are all launched purely through a main application. I am wondering if I'd be able to use intents to retrieve a list of all the sub-applications which match some discovery intent. The main application currently needs to know what Intents to use to START these sub-applications, but is there a way to use intents to see if other Activities on the device match a set of intent-filters?

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• Running Maven Goals in CLI.

  - by Jeeyoung Kim

  Hello, I have a maven pom.xml file with multiple instances of a same goal defined (inside with different s). I'm wondering how I can run a specific goal via maven command line. I've tried mvn --help, but I couldn't find an entry regarding this.

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• How do I optimize SVN (SVNKit) for commiting big files?

  - by nubela

  Hi, I'm writing a wrapper for SVNKit to be used as a sync tool. And committing a 51mb file is taking a long time and I was wondering if performance of committing/importing can be optimized? What do you guys think?

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• Can I use HTTP Post Requests for SOAP? - SOAP and Django

  - by RadiantHex

  Hi folks, I am wondering if I could use simply use HTTP POST Requests in order to implement a SOAP API. If so how should I format and treat the requests?

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• How do you become software developer for satellites and other mission critical sw ?

  - by Stefano Borini

  I was wondering... There are people out there who code stuff going to mars, satellite control systems, nuclear facilities. What kind of training did they do ? What is their career path ?

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• Does Windows CE support hash tables?

  - by Bryan

  Quick question of does Windows CE support hash tables? I have a program that I'm modifying and adding to a device that uses Windows CE and I was wondering if CE supported hash tables since it is used in the original software.

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• Singleton Pattern for C#

  - by cam

  I need to store a bunch of variables that need to be accessed globally and I'm wondering if a singleton pattern would be applicable. From the examples I've seen, a singleton pattern is just a static class that can't be inherited. But the examples I've seen are overly complex for my needs. What would be the very simplest singleton class? Couldn't I just make a static, sealed class with some variables inside?

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• Check if a table exists, and if not, create it

  - by Matt

  I'm using a Odbc connection to a mysql server, and was wondering how I would go about checking if a table exists within my database, and if not, create it.

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• CounchDB in Production

  - by NoelAdy

  I have been using CouchDB on some prototype applications and it has been brilliant, very easy to use and extremely quick. I was wondering if anyone has been using it in production and have any views on it's reliability, performance suitability for operational management etc ?? I am considering using it to support a service layer and would make use of its replication functionality. Any comments/experiences would be most welcome.

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• Merging code with dependencies? - Javascript

  - by RadiantHex

  Hi folks, this might be quite simple, but I must say I'm a bit confused on this topic. I'm writing code based on two popular libraries: jQuery underscore.js I am just wondering what would be the best way to isolate the code and prevent conflicts and how to merge it with its dependencies. By merging I mean putting them within the same file. :) I hope I'm not asking something which is too basic. ...and a last thing MERRY CHRISTMAS EVERYONE! =D

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• setting up Google Webpage Optimizer where text and conversion pages are the same

  - by Lukich

  Hi. I have a site where both landing and thank you page are index.php page with different content loaded dynamically. As I'm generating the javascript and trying to validate it, it gives me an error saying that JS is not installed on the thank you page, which makes sense, because its content is not loaded yet. I was wondering how I can circumvent this issue? Any suggestions? Thanks! Luka

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• Character Sets explained for Dummies!

  - by Imran

  I don't think i fully understand character sets so i was wondering if anyone would be kind enough to explain it in layman's terms with examples ( for Dummies).I know there is utf8, latin1, ascii ect The more answers the better really. Thank you in advance;-)

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