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  • 2010 Collaboration Summit Impressions

    - by Elena Zannoni
    It's a bit late, but there you have it anyway. April 14 to 16 I attended the Linux Foundation Collaboration Summit in SFO. I was running two tracks, one on tracing and one on tools. You can see the tracks and the slides here: http://events.linuxfoundation.org/events/collaboration-summit/slides I was pretty busy both days, Thursday with a whole day tracing track, Friday with a half day toolchain track. The sessions were well attended, the rooms were full, with people spilling in the hallways. Some new things were presented, like Kernelshark, by Steve Rostedt, a GUI (yes, believe it or not, a GUI) written in GTK. It is very nice, showing a timeline for traced kernel events, and you can zoom in and filter at will. It works on the latest kernels, and it requires some new things/fixes in GTK. I don't recall exactly what version of GTK though. Dominique Toupin from Ericsson presented something about user requirements for tracing. Mostly though about who's who in the embedded world, and eclipse. Masami and Mathieu presented an update on their work. See their slides. The interesting thing to me was of course the new version of uprobes w/o underlying utrace presented by Jim Keniston. At the end of the session we had a discussion about the future of utrace. Roland wasn't there, butTom Tromey (also from RedHat) collected the feedback. Basically we are at a standstill now that utrace has been rejected yet again. There wasn't much advise that anybody could give, except jokingly, we decided that the only way in is to make it a part of perf events. There needs to be another refactoring, but most of all, this "killer app" that would be enabled because of utrace hasn't materialized yet. We think that having a good debugging story on Linux is enough of a killer app, for instance allowing multiple tracers, and not relying on SIGCHLD etc. I think this wasn't completely clear to the kernel community. Trying to achieve debugging via a gdb stub inside the kernel interfacing to utrace and that is controlled via the gdb remote protocol also lost its appeal (thankfully, since the gdb remote protocol is archaic). Somebody would have to be creative in how to submit utrace. It doesn't have to be called utrace (it was really a random choice, for lack of a letter that was not already used in front of the word "trace"). So basically, I think the ideas behind utrace are sound, and the necessity of a new interface is acknowledged. But I believe the integration/submission process with the kernel folks has to restart from scratch, clean slate. We'll see. There are many conferences and meetings coming up in the near future where things can be discussed further. On the second day, Friday, we had the tools talks. It was interesting to observe the more "kernel" oriented people's behavior towards the gcc etc community. The first talk was by Mark Mitchell, about Gcc and its new plugin architecture. After that, Paolo talked about the new C++1x standard, which will be finalized in 2011. Many features are already implemented in the libstdc++ library and gcc and usable today. We had a few minutes (really, the half day track was quite short) where Bradley Kuhn from the Software Freedom Law Center explained the GPLv3 exception for gcc (due to the new gcc plugin architecture and the availability of the intermediate results from the compilation, which is a new thing). I will not try to explain, but basically you cannot take the result of the preprocessing and then use that in your own proprietary compiler. After, we had a talk by Ian Taylor about the new Gold linker. One good thing in that area is that they are trying to make gold the new default linker (for instance Fedora will use gold as the distro linker). However gold is very different from binutils' old linker. It doesn't use a linker script, for instance. The kernel has been linked with gold many times as an exercise (the ground work was done by Kris Van Hees), but this needs to be constantly tested/monitored because the kernel linker script is very complex, and uses esoteric features (Wenji is now monitoring that each kernel RC can be built with gold). It was positive that people are now aware of gold and the need for it to be ported to more architectures. It seems that the porting is very easy, with little arch dependent code. Finally Tom Tromey presented about gdb and the archer project. Archer is a development branch of gdb mostly done by RedHat, where they are focusing on better c++ printing, c++ expression parsing, and plugins. The archer work is merged regularly in the gdb mainline. In general it was a good conference. I did miss most of the first day, because that's when I flew in. But I caught a couple of talks. Nothing earth shattering, except for Google giving each person registered a free Android phone. Yey.

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  • XNA Notes 010

    - by George Clingerman
    With GDC 2011 wrapping up there were a LOT of great interviews and posts with and about XNA and XBLIG and some of our more notorious developers. Definitely worth spending many, many hours watching, listening and reading all those. Very inspiring! Also, don’t forget to get signed up for Dream Build Play! And just as an early warning reminder do NOT, I repeat do NOT wait to submit your game the last day. There are major issues submitting the last day every year and you do not want all your hard work to be hanging on whether your entry actually went through in that last day. Plan on submitting a few days if not a week before. I’m serious, you’ll thank yourself later! Now on to what’s happening in the XNA community! Time Critical XNA News: PAX East Meet Up (really wish I was going!) http://forums.create.msdn.com/forums/p/71921/439262.aspx Want to stay panicked about the countdown to Dream Build Play? Mike McLaughlin shares his DBP countdown clock http://twitter.com/#!/mikebmcl/status/44454458960252928 XNA Team: Nick Gravelyn Only needs less than 600 new users in his unique marketing plan for Pixel Man 2 http://nickgravelyn.com/pixelman2/ And hares his ad revenue numbers with his XNA WP7 games http://theoneswiththelight.com/2011/my-results-with-ad-revenue-for-wp7-games/ XNA MVPs: Andy “The ZMan” Dunn posts his 15,000th App Hub forum post and shares a few thoughts on the MVP summit http://forums.create.msdn.com/forums/t/77625.aspx Chris Williams shares his thoughts on the MVP summit http://geekswithblogs.net/cwilliams/archive/2011/03/07/144229.aspx XNA Developers: Nathan Fouts of Mommy’s Best games Wraps up GDC http://mommysbest.blogspot.com/2011/03/gdc-2011-wrapped.html And shares the wonderful screenshots from Serious Sam. (I’m so jealous people at PAX East willl be playing a demo of this game!) http://mommysbest.blogspot.com/2011/03/serious-sam-double-d.html James Silva of Ska Studios announces http://www.ska-studios.com/2011/03/09/vampire-smile-at-hotel-sierra/ http://www.ska-studios.com/2011/03/08/vengeance-begins-april-6th/ http://www.ska-studios.com/2011/03/04/good-morning-gato-52/ Michael McLaughlin writes an extremely useful set of tips for XNA WP7 developers http://geekswithblogs.net/mikebmcl/archive/2011/03/10/tips-for-xna-wp7-developers.aspx Robert Boyd “the one man XBLIG improving machine” posts his 9 tips for marketing an Xbox LIVE Indie Gam http://www.gamasutra.com/blogs/RobertBoyd/20110309/7183/9_Tips_for_XBLIG_Marketing.php http://forums.create.msdn.com/forums/p/77534/470586.aspx#470586 And shares his day by day experience at GDC this year http://www.gamasutra.com/blogs/RobertBoyd/20110301/7118/GDC_Saves_the_World__Impressions_Day_1.php http://www.gamasutra.com/blogs/RobertBoyd/20110301/7123/GDC_Saves_the_World__Impressions_Day_2.php http://www.gamasutra.com/blogs/RobertBoyd/20110303/7129/GDC_Saves_the_World__Impressions_Day_3.php http://www.gamasutra.com/blogs/RobertBoyd/20110307/7133/GDC_Saves_the_World__Impressions_Day_4.php http://www.gamasutra.com/blogs/RobertBoyd/20110307/7160/GDC_Saves_the_World__Impressions_Day_5.php Phillipe Da Silva releases new IGF Pong Sample preview http://www.vimeo.com/20904070 Xbox LIVE Indie Games (XBLIG): Gamergeddon posts XBox Indie Game Roundup for March 6th http://www.gamergeddon.com/2011/03/06/xbox-indie-game-round-up-march-6th/ Dealspwn interviews FortressCraft developer Projector Games http://www.dealspwn.com/fortresscraft-developer-interview-minecraft-clones-venting-haters-part-1/ http://www.dealspwn.com/fortresscraft-developer-interview-part-2-trials-tribulations-indie-development/ Writings of Mass Destruction continues the Xbox LIVE Indie Game a day campaign, here’s his take on FishCraft (be sure to check out his other posts!) http://writingsofmassdeduction.com/2011/03/05/day-116-fishcraft/ Tom Ogburn shares his GDC notes on the XBLIG panel jotted quickly while attending the panel http://twitter.com/#!/TOgburn/status/44454191028125696 http://www.starlitskygames.com/blogs/site_news/archive/2011/03/06/802.aspx Dave Voyles of Armless Octopus has crazy good coverage on XNA and Xbox LIVE Indie Game developers at GDC 2011. Interviews and articles all extremely well done! http://www.armlessoctopus.com/2011/03/06/gdc-2011-successful-indie-developers-share-insight-on-microsofts-self-publishing-service/ There’s honestly so many posts and interviews you should just hit his front page and scroll down through all of the latest ones. http://www.armlessoctopus.com/ GameMarx Episode 12 http://www.gamemarx.com/video/the-show/27/ep-12-march-4-2011.aspx B.U.T.T.O.N now on Steam! http://www.gamesetwatch.com/2011/03/button_party_game_now_on_steam.php German Xbox Dashboard gets review program from GamePro http://www.armlessoctopus.com/2011/03/07/gamepo-indie-review-show-debuts-on-german-xbox-dashboard/ XboxIndies.com (one of the best XNA sites out there at this point!) continues to add review sites to it’s main review feed. (And don’t forget to play with that awesome XBLIG pivot control!) http://xboxindies.com/ Kris Steele of FunInfused Games shares early footage of his game World of Chalk http://twitter.com/#!/kriswd40/status/45007114371989504 Raymond Matthews of Darkstarmatryx reviews FunInfused Games Abduction Action http://www.darkstarmatryx.com/?p=264 TheVideoGamerRob reviews Zombie Football Carnage http://videogamerrob.wordpress.com/2011/03/08/xblig-review-zombie-football-carnage/ XBLIG Square Off Making the Jump to WP7 http://www.wp7connect.com/2011/03/08/xblig-square-off-will-make-the-jump-to-windows-phone/ Mommy’s Best Games making the news round with their Serious Sam announcement http://www.joystiq.com/2011/03/09/serious-sam-gets-serious-indie-cred-with-new-indie-series/ Most quoted and linked XBLIG article of the week with the least amount of actual facts and reporting. Shared only because it makes me sad that this is the best coverage we get. (Hey reporters, there’s LOT and LOTS of XBLIG and XNA experts you can contact if you need to check up on facts or wonder why on questions like, Why can’t XBLIGs have Nazis? There’s actually a real answer for that..) http://www.joystiq.com/2011/03/06/xblig-facts-nazi-killing-a-no-no-revenue-a-yes-yes/ XNA Development: Mort8088 has been in an XNA tutorial writing frenzy releasing 4 XNA 4.0 entry level tutorials this week! http://mort8088.com/2011/03/06/xna-4-0-tutorial-0-intro/ http://mort8088.com/2011/03/06/xna-4-0-tutorial-1-fonts/ http://mort8088.com/2011/03/06/xna-4-0-tutorial-2-sprites/ http://mort8088.com/2011/03/06/xna-4-0-tutorial-3-input-from-keyboard/ Interesting discussion on what it means to be a community (you do have to sign up to be a member of the XNA UK forums to read it...) http://twitter.com/#!/XNAUK/status/44705269254594560 Slyprid continues his incredible pace on Transmute and shares screens of his new Animation Builder http://twitter.com/#!/slyprid/status/45169271847911424 http://forgottenstarstudios.com/blog/ Philippe Da Silva wants to know who is using IGF for their games. If it’s you, drop him a note letting him know! http://twitter.com/#!/philippedasilva/status/44325893719588864 New Sunburn Video Tutorials released http://www.synapsegaming.com/blogs/fivesidedbarrel/archive/2011/03/07/new-documentation-video-tutorials.aspx Loading and rendering animated collada models using XNA 4.0 http://bunkernetz.wordpress.com/2011/03/09/loading-and-rendering-animated-collada-models-using-xna-4-0/ XNA for Silverlight Developers Part 6 Accelerometer Input http://buzzgamesnews.blogspot.com/2011/03/xna-for-silverlight-developers-part-6.html

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  • Doctrine Build-All Task fails in NetBeans - Class not found! Fatal Error: call to evictAll()

    - by Prasad
    When I build my model with the symfony doctrine:build --all --and-load command I have made no major changes to the model/schema, this is something new. I also tried sub-commands like build-model, build-tables, but they all hang.. I'm trying this in net beans. Any clue what this is? This command will remove all data in the following "dev" connection(s): - doctrine Are you sure you want to proceed? (y/N) y >> doctrine Dropping "doctrine" database >> doctrine Creating "dev" environment "doctrine" database >> doctrine generating model classes >> file+ C:\Documents and Settings\Gupte...\Temp/doctrine_schema_69845.yml >> tokens D:/projects/cim/lib/model/doctrine/base/BaseAffiliate.class.php >> tokens D:/projects/cim/lib/model/doctrine/base/BaseContact.class.php >> tokens D:/projects/cim/lib/model/doctr...e/BaseContactLocation.class.php >> tokens D:/projects/cim/lib/model/doctr...se/BaseGroupAffiliate.class.php >> tokens D:/projects/cim/lib/model/doctrine/base/BaseGrouping.class.php >> tokens D:/projects/cim/lib/model/doctrine/base/BaseLocation.class.php >> tokens D:/projects/cim/lib/model/doctr.../base/BasePhonenumber.class.php >> tokens D:/projects/cim/lib/model/doctrine/base/BaseTenant.class.php >> tokens D:/projects/cim/lib/model/doctr...base/BasesfGuardGroup.class.php >> tokens D:/projects/cim/lib/model/doctr...fGuardGroupPermission.class.php >> tokens D:/projects/cim/lib/model/doctr...BasesfGuardPermission.class.php >> tokens D:/projects/cim/lib/model/doctr...asesfGuardRememberKey.class.php >> tokens D:/projects/cim/lib/model/doctr.../base/BasesfGuardUser.class.php >> tokens D:/projects/cim/lib/model/doctr.../BasesfGuardUserGroup.class.php >> tokens D:/projects/cim/lib/model/doctr...sfGuardUserPermission.class.php >> autoload Resetting application autoloaders >> file- D:/projects/cim/cache/frontend/.../config/config_autoload.yml.php >> file- D:/projects/cim/cache/backend/dev/config/config_autoload.yml.php >> doctrine generating form classes [?php /** * Contact form base class. * * @method Contact getObject() Returns the current form's model object * * @package ##PROJECT_NAME## * @subpackage form * @author ##AUTHOR_NAME## * @version SVN: $Id: sfDoctrineFormGeneratedTemplate.php 24171 2009-11-19 16:37:50Z Kris.Wallsmith $ */ abstract class BaseContactForm extends BaseFormDoctrine { public function setup() { $this->setWidgets(array( 'id' Fatal error: Call to a member function evictAll() on a non-object in D:\projects\cim\lib\vendor\symfony\lib\plugins\sfDoctrinePlugin\lib\vendor\doctrine\Doctrine\Connection.php on line 1239 Call Stack: 0.9552 322760 1. {main}() D:\projects\cim\symfony:0 0.9594 587208 2. include('D:\projects\cim\lib\vendor\symfony\lib\command\cli.php') D:\projects\cim\symfony:14 11.9775 17118936 3. sfDatabaseManager->shutdown() D:\projects\cim\lib\vendor\symfony\lib\database\sfDatabaseManager.class.php:0 11.9775 17118936 4. sfDoctrineDatabase->shutdown() D:\projects\cim\lib\vendor\symfony\lib\database\sfDatabaseManager.class.php:134 11.9775 17118936 5. Doctrine_Manager->closeConnection() D:\projects\cim\lib\vendor\symfony\lib\plugins\sfDoctrinePlugin\lib\database\sfDoctrineDatabase.class.php:165 11.9775 17118936 6. Doctrine_Connection->close() D:\projects\cim\lib\vendor\symfony\lib\plugins\sfDoctrinePlugin\lib\vendor\doctrine\Doctrine\Manager.php:579 11.9776 17120160 7. Doctrine_Connection->clear() D:\projects\cim\lib\vendor\symfony\lib\plugins\sfDoctrinePlugin\lib\vendor\doctrine\Doctrine\Connection.php:1268 Couldn't find class Similar thing is mentioned here: http://osdir.com/ml/symfony-users/2010-01/msg00642.html

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  • SQL Developer Q&A from ODTUG Tips & Tricks Webcast

    - by thatjeffsmith
    Another great webcast yesterday – if you’re a paying member of ODTUG you can watch the show for yourself in their archives. If not, you can get my slide deck off of SlideShare. About 150 of you brave souls sat through an entire hour of me talking and then 10 more minutes of Q&A. We went through everything rapid-fire style, so I thought I would post the questions and my refined answers here for your perusal. In the order in which I received them: You showed the preference to choose between resultsets in same tab or ain a new tab. I understand that we can not have it both using different hotkeys? For example: F5 run and resultset to same tab, ctrl-f5 same but to new tab? Sometimes you want the one other times the other. The questioner is asking about this preference, Tools Preferences Database Worksheet ‘Show query results in new tabs.’ This is an all or nothing proposition. But, there’s another, perhaps better way: the document PINs. If you have a result set you don’t want to lose, ‘pin it.’ Pin multiple result sets or plans for review and comparisons. You mentioned that sometimes it’s hard to remember where a certain preference is. I agree. So enhancement request: add a search-box to the preferences window. Maybe like in, for example, UltraEdit. It shows you all preferences containing your search criteria. Actually, we do have a search mechanism type the search string, we auto-filter the preferences Is there a version of SQL Developer that will connect to an 8i database (Yes, I realize how old that database version is!) Sorry, no. We also don’t have a version that will run on Windows 3.11 for Workgroups…probably. How do we access your blog? Carefully, and with much trepidation. When you’re ready, go to http://www.thatjeffsmith.com Is there a way to get good formatting with predefined settings? I believe the questioner is referring to the script output a la SQL*Plus formatting commands. Yes, there is. You can build your formatting commands into your login.sql script, and those will be applied for your script execution sessions. Example here. Why this version 4.0 doesn’t support external plugins? It does, it just requires the plugin developer to re-factor it for OSGi. This came about when we updated the JDeveloper framework to the later 11g/12c stuff. Any change in hookup with SVN? The only change with Subversion is that internally we’re using 1.7 stuff now. You can use SQLDev to work with a 1.8 SVN server, but if you get a working copy with a 1.8 client SQLDev won’t be able to do anything with it… Command line utilities ? improvements Yes! The long answer is here. Is that a Hint or a Comment?? /*CSV*/ It’s a comment – the database won’t recognize it, but SQLDev does when it goes through our statement pre-processor. We’ll redirect the output through our CSV formatter before displaying the results in the Script Output panel. That’s why this will ONLY work in SQL Developer. Are you selecting “”Run Script”" to get that CSV or HTML output, rather than “”Run Statement”"? Yes, the formatter hints like the CSV one mentioned above only make sense in a script output panel vs a grid. How do you save relational models once they’re defined? I’ve had trouble with setting one up, “”saving”" it, then the design work I did is longer there when loading it later. File – Data Modeler – Save. If you’re running the Modeler inside of SQL Developer, the menu’ing interface can get a bit tricky. That’s why I recommend using the stand along if you’re doing anything with a model that takes more than 5 minutes. See how the Data Modeler menus are folded up under the SQL Dev menus? Can u unplug and plug into another container in a database with only sqldeveloper? Yes, you can ‘Detach’ a multitentant 12c Database ‘pluggable’ and plug it into another instance. You have the option to copy or move the files. This isn’t a trivial operation, pay attention Can you run APEX code directly on the adopter? No, at least not as I understand your question. Give me an example and I can give you a better example. Is there a way that when u click on a particular table it wouldn’t show the table with the info but just to see the columns underneath clicking on the node? Yes, another one of my tips! Disable Tools Preferences Datbase ObjectViewer ‘Open Object on Single Click.’ Is there a patch to allow a double click on a procedure on an open package body to take you to that procedure in the editor? This has been fixed for EA3 – to be released soon. Can you open the spec with the body? You can open the spec or the body, and then also open the other. But you can’t open both with a single click. So if you want you can set it to CSV but can you also see it as a regular result set in rows and then click in the results to export to excel? If you run your query as a statement with Ctrl-Enter, you can send the data to Excel via the Export dialog. Will it do intellisense like using the alias and pop up the column, object names? Yes! You can select more than one column… Can a DBA turn off items from a high level for users so the only thing they can perform would be selects? A DBA should turn things ON, not OFF. Create a user with only CONNECT and required SELECT privs and you’re good to go, regardless of which application they are using. I use PL/SQL Developer from allround automations and was SQL Developer illiterate and now I like this for myself as a DBA. Now I get to train developers on this tool since they have been asking how to use this tool. Thank you. No, THANK YOU! Can you run multi queries in the worksheet after you added it to the worksheet? Yes, highlight what you want to run, and hit Ctrl-Enter. Can you export the result sets to excel, etc. Yes. In version 4.0 and going forward, I recommend you use the XLSX option for exports. It will run faster and consume much, much less memory. Will this be available after the webinar? If you are a ODTUG member, check out the webinar recordings in the archives. That’s worth the $99 right there. Ask your boss if they have $99 in their training budget for you. If not, maybe time to look for another job? Can you run command lines from this tool? Like executes without issuing a command line prompt? Ok, I’m stumped on this one. Not sure what you’re asking. You can setup external tools under the Tools menu, and from there you could probably rig what you’re looking for, but I’m not sure what you’re looking for… This maybe?Where and when to put the program Is there any way to save a copy database command set (certain tables/views etc) in a script? Yes! Create a cart with the objects you want to be used in the Copy. Then use the new command-line interface to kick off SQL Developer to do the copy of those said objects. How can we export the preference and then import them into different or same version of SQL Developer ? Today, there’s no interface for this. But you could copy the files around manually…Kris Rice has a cool idea where you can set your preferences to be saved to your local drop box folder and then you can use SQL Developer from anywhere with the same preferences What happens to SQL*Plus commands like COL & BREAK Nothing. Those are not currently supported. Is there a place where all “”hotkey”" functionality is listed? thanks Yes. Tools – Preferences – Shortcut Keys. And you can change them! Any tips for the DBA side of things? will the SQL generated for objects have more information (e.g. user privileges) in v4? You can get this now. In Tools – Preferences – Database – Utilities – Export, check ‘Grants.’ Voila! You now have the code necessary to recreate your object privileges Is there a limit on the number of rows that could be imported / exported from/to excel ? The only hard-coded limit lies in Excel. For best performance, use v4 and XLSX formats for Exports. Is there a way to see/watch active sessions to see current SQL and the explain plan being used, etc. Kind of like that frog product. Cough, yes. Tools – Monitor Sessions. Click on session, see SQL and plan. The plan was added in v4. If you’re not in version 4, use the Reports – Active Sessions to get the plans. In the DBA section is there a way to manage say tablespaces to add data files, shrink, edit profiles, etc. Yes, we support all of that. View – DBA. Connect, go to the Storage node. Are you (Jeff) available for a live presentation at our Oracle User Group here in Indiana? Maybe. Email me and we’ll see, [email protected] Where do I go to download sql developer 4.0? The Internet of course! Can you directly edit query results? Nope. But what I think you’re asking is, can I edit the data in the tables that are reflected in my query results? You can change the query results by changing your query of course. Or this. Can you show html example? Sure. I’d embed the HTML here, but it’s a lot of code, try it for yourself! How can I quickly close many SQL worksheet windows, but not all? Window – Documents. Multi-select, hit the ‘Close Document(s)’ button. What does the vertical red line denote? That’s the margin. Tells you when you’ve typed too far and it’s time for a carriage return. Did DBA/Database Status/Instance Viewer make it officially into 4.0? It was sort-of included in the first EA. I have NO idea what you’re talking about, WINK-WINK. No, it’s not in v4.0. Is there a “”handy”" way to debug trigger code? Yes, open your trigger. Hit the debug button. Works great as long as it’s a DML trigger. Will you make your presentation file available for us ( in PPT and/or PDF format ) ? It’s on SlideShare. How do you get SqlDeveloper to escape ‘ correctly when you use the wizard to export data as insert statements? If it’s not doing that, it’s a bug. I’ll take a look at that scenario ASAP.

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