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  • JSF 2.0 sample or open source application

    - by Theo
    Does anyone know a complete JSF 2.0 sample or open source application using JSF 2.0 features (Facelets, Composite Component, Templates, Ajax, Navigation, etc.). Would be a good reference to learn some best practices. I'm talking about an application that you would also use in production. The only ones I know are ScrumToys and PetCatalog which are delivered with NetBeans 6.9 and are "tutorial-like" applications.

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  • What is the preferred syntax for initializing a dict?

    - by daotoad
    I'm putting in some effort to learn Python, and I am paying close attention to common coding standards. This may seem like a pointlessly nit-picky question, but I am trying to focus on best-practices as I learn, so I don't have to unlearn any 'bad' habits. I see two common methods for initializing a dict: a = { 'a': 'value', 'another': 'value', } b = dict( a='value', another='value', ) Which is considered to be "more pythonic"? Which do you use? Why?

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  • Explicit Event add/remove, misunderstood?

    - by Hammerstein
    I've been looking into memory management a lot recently and have been looking at how events are managed, now, I'm seeing the explicit add/remove syntax for the event subscription. I think it's pretty simple, add/remove just allows me to perform other logic when I subscribe and unsubscribe? Am I getting it, or is there more to it? Also, while I'm here, any advice / best practices for cleaning up my event handles.

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  • Annoyed by the expression "Moving Forward". Why do people use it? [closed]

    - by craig
    What does “Moving Forward” mean to you? “Moving Forward”: A.To acknowledge the past but in essence, encourage a positive, professional environment to do our personal best in relation to issue that was criticized. B.To acknowledge the past and learn from case examples to develop continually updated and open sources of information. Specifically, policies and procedures or best practices. C.To dismiss the past to put behind fears of retribution. D.Combination of above choices E._____< Open Answer

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  • How to replicate data with memcache

    - by Industrial
    Hi everyone, I am trying to find good resources on best practices to data replication across memcache servers. What I want to accomplish is that if one of my servers in my pool goes down, the next server in line already has the info set. I have found "repcached" but since I run a WIN32 test environment, I have been unable to install it. So what's our alternatives on how to replicate data between servers? Thanks,

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  • how to use google analytics to count clicks on a button

    - by vfix
    Hi everyone, I have google analytics on my site. One page has a button which when pressed executes some javascript. It would be nice to monitor the number of hits the button receives when people come to this page. Can anybody suggest the easiest way to achieve this with google analytics ? Are there any best practices to do this ? thanks

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  • Do you use Python mostly for its functional or object-oriented features?

    - by Eric
    I see what seems like a majority of Python developers on StackOverflow endorsing the use of concise functional tools like lambdas, maps, filters, etc., while others say their code is clearer and more maintainable by not using them. What is your preference? Also, if you are a die-hard functional programmer or hardcore into OO, what other specific programming practices do you use that you think are best for your style? Thanks in advance for your opinions!

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  • examples of good concurrent programs meant to scale

    - by vishr
    I am looking for seminal and excellent examples of libraries and projects that emulate the good practices of the Java Concurrency in Practice book. The book is marvelous. However, I think supplementing this book reading with code reviews of projects and libraries that make use of the concurrency APIs effectively is necessary to drive the concepts into the brain. One good example of what I am looking for is https://code.google.com/p/concurrentlinkedhashmap/ Can folks help me with finding exemplary, well written code that use the concurrency api well?

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  • Guidance for Workflow type applications

    - by UpTheCreek
    Hi, I'm looking for best practices and resources regarding design of workflow based applications. E.g.Best practice/guidance for: How best to represent business object 'states' (position in workflow) How to approach logging of transition between workflow states State transition rules I'm using .NET, but am rather looking for general guidance I'm sorry that this is a bit general, I'm just hoping some people will have some experiences to share.

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  • SQL Server Text type v.s. varchar data type

    - by George2
    Hello everyone, I have variable length character and want to store in SQL Server (2005) database. I want to learn some best practices about how to choose TEXT SQL type or choose VARCHAR SQL type, pros and cons in performance/footprint/function. thanks in advance, George

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  • HOw TO run a c programm in ubuntu 10.10

    - by Vinay Khandalkar
    Hello I want to run c programs in ubuntu 10.10 because in my college lab i gave the advice to change os they use replace xp to ubuntu and they did it by my request to them but in our college lab all student are doing daily practices on c programming and now there is problems to run the c programs in ubuntu 10.10 so please help me.please Is there is any one to give me solution on this topic please fast. Thank You !!!!!!!!!!!

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  • Why save output until the end?

    - by user509006
    Very quick question about programming practices here: I've always used echo() to output HTML code to the user as soon as it was generated, and used ob_start() at the same time to be able to output headers later in the code. Recently, I was made aware that this is bad programming practice and I should be saving HTML output until the end. Is there a reason for this? What is it, and why isn't output buffering a good alternative? Thanks!

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  • dragging and dropping in asp.net?

    - by sam
    Hi Guys, I am new to web development, I am coding some ASP.NET, I watched many videos about using LINQ to SQL, I am happy I learned something, but is it the good way of using is: dragging and dropping and that's done??? what are the best practices to use LINQ to access Database ( my database is not only SQL server..MYSQL..) Thanks

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  • Dynamic webpage content

    - by SQLiteNoob
    I have a website with a jQuery UI navigation, and I've got ajax working to dynamically change content between html files. I'm basically just replacing the contents of certain div ids with the contents of other div ids. This still requires numerous HTML files and I was wondering if there was a way to have a single html file and load content into the main page from it instead? What about an xml file? Thanks for the tips and advice about best practices and possible solutions.

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  • megacli forceWB

    - by Pascal den Bekker
    We are using a raid controller: LSI Logic / Symbios Logic MegaRAID SAS 2008 But there is no BBU on Board, is there a way to force the WB Cache ?? I tried following: - /opt/MegaRAID/MegaCli/MegaCli64 -LDSetProp CachedBadBBU -L0 -a0 Failed to set Write Cache OK if bad BBU on Adapter 0, VD 0. FW error description: The requested command has invalid arguments. Can anyone help? Cheers, Pascal

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  • 3Ware 9650SE RAID-6, two degraded drives, one ECC, rebuild stuck

    - by cswingle
    This morning I came in the office to discover that two of the drives on a RAID-6, 3ware 9650SE controller were marked as degraded and it was rebuilding the array. After getting to about 4%, it got ECC errors on a third drive (this may have happened when I attempted to access the filesystem on this RAID and got I/O errors from the controller). Now I'm in this state: > /c2/u1 show Unit UnitType Status %RCmpl %V/I/M Port Stripe Size(GB) ------------------------------------------------------------------------ u1 RAID-6 REBUILDING 4%(A) - - 64K 7450.5 u1-0 DISK OK - - p5 - 931.312 u1-1 DISK OK - - p2 - 931.312 u1-2 DISK OK - - p1 - 931.312 u1-3 DISK OK - - p4 - 931.312 u1-4 DISK OK - - p11 - 931.312 u1-5 DISK DEGRADED - - p6 - 931.312 u1-6 DISK OK - - p7 - 931.312 u1-7 DISK DEGRADED - - p3 - 931.312 u1-8 DISK WARNING - - p9 - 931.312 u1-9 DISK OK - - p10 - 931.312 u1/v0 Volume - - - - - 7450.5 Examining the SMART data on the three drives in question, the two that are DEGRADED are in good shape (PASSED without any Current_Pending_Sector or Offline_Uncorrectable errors), but the drive listed as WARNING has 24 uncorrectable sectors. And, the "rebuild" has been stuck at 4% for ten hours now. So: How do I get it to start actually rebuilding? This particular controller doesn't appear to support /c2/u1 resume rebuild, and the only rebuild command that appears to be an option is one that wants to know what disk to add (/c2/u1 start rebuild disk=<p:-p...> [ignoreECC] according to the help). I have two hot spares in the server, and I'm happy to engage them, but I don't understand what it would do with that information in the current state it's in. Can I pull out the drive that is demonstrably failing (the WARNING drive), when I have two DEGRADED drives in a RAID-6? It seems to me that the best scenario would be for me to pull the WARNING drive and tell it to use one of my hot spares in the rebuild. But won't I kill the thing by pulling a "good" drive in a RAID-6 with two DEGRADED drives? Finally, I've seen reference in other posts to a bad bug in this controller that causes good drives to be marked as bad and that upgrading the firmware may help. Is flashing the firmware a risky operation given the situation? Is it likely to help or hurt wrt the rebuilding-but-stuck-at-4% RAID? Am I experiencing this bug in action? Advice outside the spiritual would be much appreciated. Thanks.

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  • Cannot install virtualbox-ose-guest-dkms on Ubuntu 10.04

    - by mrduongnv
    I'm using Ubuntu 10.04 and kernel: 2.6.38-11-generic-pae. While using VirtualBox, i got this error: Kernel driver not installed (rc=-1908) Please install the virtualbox-ose-dkms package and execute 'modprobe vboxdrv' as root. I tried to execute the command: sudo modprobe vboxdrv and got this error: FATAL: Module vboxdrv not found. After that, i execute this: sudo aptitude install virtualbox-ose-guest-dkms duongnv@duongnv-laptop:~$ sudo aptitude install virtualbox-ose-guest-dkms Reading package lists... Done Building dependency tree Reading state information... Done Reading extended state information Initializing package states... Done The following partially installed packages will be configured: virtualbox-ose-guest-dkms 0 packages upgraded, 0 newly installed, 0 to remove and 105 not upgraded. Need to get 0B of archives. After unpacking 0B will be used. Writing extended state information... Done Setting up virtualbox-ose-guest-dkms (3.1.6-dfsg-2ubuntu2) ... Removing old virtualbox-ose-guest-3.1.6 DKMS files... ------------------------------ Deleting module version: 3.1.6 completely from the DKMS tree. ------------------------------ Done. Loading new virtualbox-ose-guest-3.1.6 DKMS files... First Installation: checking all kernels... Building only for 2.6.38-11-generic-pae Building for architecture i686 Building initial module for 2.6.38-11-generic-pae Error! Bad return status for module build on kernel: 2.6.38-11-generic-pae (i686) Consult the make.log in the build directory /var/lib/dkms/virtualbox-ose-guest/3.1.6/build/ for more information. dpkg: error processing virtualbox-ose-guest-dkms (--configure): subprocess installed post-installation script returned error exit status 10 Errors were encountered while processing: virtualbox-ose-guest-dkms E: Sub-process /usr/bin/dpkg returned an error code (1) A package failed to install. Trying to recover: Setting up virtualbox-ose-guest-dkms (3.1.6-dfsg-2ubuntu2) ... Removing old virtualbox-ose-guest-3.1.6 DKMS files... ------------------------------ Deleting module version: 3.1.6 completely from the DKMS tree. ------------------------------ Done. Loading new virtualbox-ose-guest-3.1.6 DKMS files... First Installation: checking all kernels... Building only for 2.6.38-11-generic-pae Building for architecture i686 Building initial module for 2.6.38-11-generic-pae Error! Bad return status for module build on kernel: 2.6.38-11-generic-pae (i686) Consult the make.log in the build directory /var/lib/dkms/virtualbox-ose-guest/3.1.6/build/ for more information. dpkg: error processing virtualbox-ose-guest-dkms (--configure): subprocess installed post-installation script returned error exit status 10 Errors were encountered while processing: virtualbox-ose-guest-dkms Reading package lists... Done Building dependency tree Reading state information... Done Reading extended state information Initializing package states... Done

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  • Installing gnome on Linode with Ubuntu 9.10 x64 - remote VNC/RDP

    - by Kieran Benton
    Hi, I'm a self confessed Linux newbie, having lived and worked mostly within the Windows world for most of my life. I'm making the effort to try moving my virtual host from a Windows box to a Linode instance to try and better learn Linux, and one of the uses I occasionally have with my current Windows VPS is to RDP into it and browse the internet. I'm aware that this is probably not best practice (from either performance or security), and most of the time I will be learning from the shell, but I do occasionally need to boot into a GUI. Because of this, I'd like the ability within my Ubuntu installation on Linode to start/stop Windows X and Gnome at will after SSHing in (startx? gdm?), so I've tried: apt-get install ubuntu-desktop Reboot startx But I've got an error that no amount of googling has helped me with so far, which I'm assuming is something to do with the fact the box is headless and X needs some more configuration that is beyond me at the moment: root@local:~# startx hostname: Unknown host xauth: creating new authority file /root/.Xauthority xauth: creating new authority file /root/.Xauthority xauth: (argv):1: bad display name "local.kieranbenton.com:0" in "list" command xauth: (stdin):1: bad display name "local.kieranbenton.com:0" in "add" command X.Org X Server 1.6.4 Release Date: 2009-9-27 X Protocol Version 11, Revision 0 Build Operating System: Linux 2.6.24-23-server x86_64 Ubuntu Current Operating System: Linux local.kieranbenton.com 2.6.31.5-x86_64-linode9 #1 SMP Mon Oct 26 19:35:25 UTC 2009 x86_64 Kernel command line: root=/dev/xvda xencons=tty console=tty1 console=hvc0 nosep nodevfs ramdisk_size=32768 ro Build Date: 26 October 2009 05:19:56PM xorg-server 2:1.6.4-2ubuntu4 (buildd@) Before reporting problems, check http://wiki.x.org to make sure that you have the latest version. Markers: (--) probed, (**) from config file, (==) default setting, (++) from command line, (!!) notice, (II) informational, (WW) warning, (EE) error, (NI) not implemented, (??) unknown. (==) Log file: "/var/log/Xorg.0.log", Time: Wed Dec 2 15:50:23 2009 Primary device is not PCI (==) Using default built-in configuration (21 lines) (EE) open /dev/fb0: No such file or directory (EE) No devices detected. Fatal server error: no screens found Please consult the The X.Org Foundation support at http://wiki.x.org for help. Please also check the log file at "/var/log/Xorg.0.log" for additional information. ddxSigGiveUp: Closing log Can anyone give me any pointers as to how to go from here and get VNC/RDP setup? (RDP would be preferred?). Thanks.

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