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• Launching LibreOffice Files - Unusual Window Behaviour

  - by Mike

  Ubuntu 11.10 Unity. If I launch LibreOffice Files (ODS, ODT, ODP) with a double click in their home folders they launch with the appropriate application (Calc, Writer, Impress) however the application windows do not display the usual Close, Minimize, Restore buttons in the left hand corner. There is just a blank space where they should be. In the Unity launcher on the left there is not the expected white arrow next to the launcher icon and the open app is not seen by the ALT+TAB keystroke when you have multiple windows open. For example: if you have an app open in this way and say Firefox, if you minimize Firefox you are only left with the desktop and you have no way to locate the open LibreOffice app. Clicking the app's icon in the launcher simply opens another instance. A messy workaround is to click [Firefox] to a restored window and the LibreOffice app can be seen behind it allowing a mouse click to bring it forward. If I open the LibreOffice app from the launcher and then Open a file from its menu, it all behaves as expected. I don't find this as convenient; anyone know how to fix the bad behaviour?

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• What's the best way to manage error logging for exceptions?

  - by Peter Boughton

  Introduction If an error occurs on a website or system, it is of course useful to log it, and show the user a polite message with a reference code for the error. And if you have lots of systems, you don't want this information dotted around - it is good to have a single centralised place for it. At the simplest level, all that's needed is an incrementing id and a serialized dump of the error details. (And possibly the "centralised place" being an email inbox.) At the other end of the spectrum is perhaps a fully normalised database that also allows you to press a button and see a graph of errors per day, or identifying what the most common type of error on system X is, whether server A has more database connection errors than server B, and so on. What I'm referring to here is logging code-level errors/exceptions by a remote system - not "human-based" issue tracking, such as done with Jira,Trac,etc. Questions I'm looking for thoughts from developers who have used this type of system, specifically with regards to: What are essential features you couldn't do without? What are good to have features that really save you time? What features might seem a good idea, but aren't actually that useful? For example, I'd say a "show duplicates" function that identifies multiple occurrence of an error (without worrying about 'unimportant' details that might differ) is pretty essential. A button to "create an issue in [Jira/etc] for this error" sounds like a good time-saver. Just to re-iterate, what I'm after is practical experiences from people that have used such systems, preferably backed-up with why a feature is awesome/terrible. (If you're going to theorise anyway, at the very least mark your answer as such.)

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• Remove languages in translations?

  - by Pit

  Hi, I use spell-checker for 4 languages, en, de, fr, and lb. If I enable Spellchecking and writing aids for en, de or fr in System -> Administration -> Language Support there will be multiple versions of each language available, e.g. en , en_CA, en_GB, ... Is there a possibility to select only one of those language versions while enabling the language, or removing the others afterwards. It would be enough to remove them from the selection menu. I would like to use the version which is equal to the country the language originally comes from: e.g. de_DE, fr_FR, en_GB. For lb there is currently only lb_LU so there is no problem (yet). Instead of 4 languages I currently have around 20, which is kind of annoying when switching the language ( which I do quite often). There might be a similar problem for the menu translations, where if I understand correctly you can choose the order in which translations are applied if they exist. Any suggestions?

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• How to get Wifi Working Properly - I am Noob

  - by user287853

  I'm a noob to Ubuntu, but not computers. I installed a full version of Ubuntu version 12 whatever it is. I run it on a machine that has Win7/Win8 on another hard drive. My wireless adapter is some tiny USB stick I got on eBay - it works great in Windows, but I can't get it to work in Ubuntu. More precisely, Ubuntu is providing me a list (sometimes) of wireless networks in the area and when I try to connect to mine it just keeps password prompting me even though the one I use is correct. I looked over all the settings multiple times and don't believe there is anything in error regarding what it takes to connect to my network. So, I thought maybe it is a driver issue and came across NDIS. I thought I should try installing it, but I don't know how when I can't connect the Ubuntu machine to the Internet. I tried some commands to no avail. I have the Ubuntu installation disc and it shows a NDIS common and utils .deb files in there. Can someone out there help me out to get this wireless setup so I can get online?

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• Payroll Customers Must Apply Mandatory Patches to Maintain Your Supportability

  - by DanaD

  The HRMS Suite of products has minimum required Rollup Patch (RUP) levels as well as additional mandatory patches that our customers must apply to ensure they are in compliance for support.  Without these patches, customers risk not being able to apply any fixes for issues they encounter as these RUPs and mandatory patches are the minimum patch level expected by Oracle Support and Oracle Development.  Core Payroll and International Payroll customers must apply the yearly Rollup Patch within 12 months of its issue. Legislative Payroll customers have additional requirements for the Rollup Patch, as the RUP generally is a pre-requisite for the next Year End/Fourth Quarter/Year Begin payroll processing supported by Oracle. These minimum RUP patches and other mandatory patches for your product or legislation are created with the following goals in mind: Compliance: Manage the people in your organization within the requirements of a specific country. Supportability: Ensure you are on a common code base so that if problems are identified, patches can be readily provided to you. Reliability: Reliable code with multiple customer downloads and comprehensive testing. For the listing of Mandatory Rollup Patches for Oracle Payroll please view: Doc ID 295406.1: Mandatory Family Pack/Rollup Patch (RUP) Levels for Oracle Payroll. For the listing of Mandatory Patches for the HRMS Suite please view: Doc ID 1160507.1: Oracle E-Business Suite HCM Information Center – Consolidated HRMS Mandatory Patch List. For information on the latest Rollup Patches (RUPs) for the HRMS Suite please view: Doc ID 135266.1: Oracle HRMS Product Family – Release 11i & 12 Information.

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• Oracle SOA Suite on Virtual Box

  - by sravan.sarraju(at)oracle.com

  Recently I have started my journey Oracle SOA Suite and the first big hurdle everyone warned me off is setting up Oracle SOA Suite environment in our personal machine for learning. My laziness pushed me to search for much easier way than regular all download, configuration stuff and bang..! I found in the solution oracle site itself. Oracle SOA Suite on Virtual Box. For those who are not aware of Virtual Box, it’s a virtualization software which enables u to install multiple operating systems on a virtual hard drive which in turn managed by Virtual Box. In short pack ur Operating System, Software, Files everything into a VM and carry it wherever u go. Coming to Oracle SOA Suite, Oracle is offering a prebuilt VM for download which u can mount on ur Virtual box and that all you need. Here is the link for Virtual Box image of Oracle SOA Suite. Virtual Box can be downloaded here It’s a huge download. I’m yet to try it myself. Will get back to my writer again once I’m done.

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• Finding Missing UDP Frames Using Wireshark + Custom Dissector (for CQS)

  - by John Dibling

  How do you use Wireshark to identify missing UDP frames? I have written a custom dissector for the CQS feed (reference page). One of our servers gaps when receiving this feed. According to Wireshark, some UDP frames are never received. I know that the frames were sent because all of our other servers are gap-free. A CQS frame consists of multiple messages, each having its own sequence number. My custom dissector provides the following data to Wireshark: cqs.frame_gaps - the number of gaps within a UDP frame (always zero) cqs.frame_first_seq - the first sequence number in a UDP frame cqs.frame_expected_seq - the first sequence number expected in the next UDP frame cqs.frame_msg_count - the number of messages in this UDP frame And I am displaying each of these values in custom columns, as shown in this screenshot: A typical CQS log will consist of millions of rows, so I can't just eyeball it. Is there any way I can get Wireshark to tell me which frames are missing?

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• 2 sited hosted in NGINX with separate SSL certs. IE8 posting invalid when starting at one site going to the other

  - by Dave Johnsen

  If users with IE8 go directly to www.xyz.com, SSL cert is fine. Users going directly to www.zyx.com have no issues with cert. If users start at one site and go to the other, they get invalid cert with xyz being used on zyx which should not be happening. Reading the forums NGINX has SNI enabled and I have the correct version of OpenSSL to be able to handle multiple certs. IE8 seems to be the issue but these are customer facing sites. Is there a fix to make NGINX work for the customers experiencing the issue.

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• The MsC gray zone: How to deal with the "too unexperienced on engineering/too under-qualified for research" situation?

  - by Hunter2

  Last year I've got a MsC degree on CS. On the beginning of the MsC course, I was keen on moving on with research and go for a PhD. However, as the months passed, I started to feel the urge to write software that people would, well, actually use. The programming bug had bitten me, again. So, I decided that before deciding on getting a PhD degree, I would spend some time on the "real world", working as a software developer. Sadly, most companies here in Brazil are "services" companies that seem to be stuck on the 80s when it comes to software development. I have to fend off pushy managers, less-than-competent coworkers and outrageous software requirements (why does everyone seem to need a 50k Oracle license and a behemoth Websphere AS for their CRUD applications?) on a daily basis, and even though I still love software development, the situation is starting to touch a nerve. And, mind you, I'm already lucky for getting a job at a place that isn't a plain software sweatshop. Sure, there are better places around here or I could always try my luck abroad, but then I hit the proverbial brick wall: Sorry, you're too unexperienced as a developer and too under-qualified as a researcher I've already heard this, and variations of that, multiple times. Research position recruiters look for die-hard, publication-ridden, rockstar PhDs, while development position recruiters look for die-hard, experience-ridden, rockstar programmers. To most, my MsC degree seems like a minor bump on my CV (and an outright waste of time for some). Applying for abroad positions is even harder, since the employer would have to deal of the hassle of a VISA process, which I understand that, sometimes, is too much. Now I'm feeling I've reached a dead-end. I'm certain that development (and not research) is my thing, so should I just dismiss my MsC (or play it as a "trump card") and play the "big fish on a small pond" role while I gather some experience and contribute on some open-source projects as a plus? Is there a better way to handle this?

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• LiveMeeting VC PowerShell PASS – Troubleshooting SQL Server with PowerShell

  - by Laerte Junior

  Guys, join me on Wednesday July 18th 12 noon EDT (GMT -4) for a presentation called Troubleshooting SQL Server With PowerShell. It will be in English, so please make allowances for this. I’m sure that you’re aware that my English is not perfect, but it is not so bad. I will do my best, you can be sure. The registration link will be available soon from PowerShell.sqlpass.org, so I hope to see you there. It will be a session without slides. Just code; pure PowerShell code. Trust me, We will see a lot of COOL stuff.Big thanks to Aaron Nelson (@sqlvariant) for the opportunity! Here are some more details about the presentation: “Troubleshooting SQL Server with PowerShell – The Next Level’ It is normal for us to have to face poorly performing queries or even complete failure in our SQL server environments. This can happen for a variety of reasons including poor Database Designs, hardware failure, improperly-configured systems and OS Updates applied without testing. As Database Administrators, we need to take precaution to minimize the impact of these problems when they occur, and so we need the tools and methodology required to identify and solve issues quickly. In this Session we will use PowerShell to explore some common troubleshooting techniques used in our day-to-day work as s DBA. This will include a variety of such activities including Gathering Performance Counters in several servers at the same time using background jobs, identifying Blocked Sessions and Reading & filtering the SQL Error Log even if the Instance is offline The approach will be using some advanced PowerShell techniques that allow us to scale the code for multiple servers and run the data collection in asynchronous mode.

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• 13.04 Dash Icon and Ubuntu Gnome-Classic Issues

  - by Flabricorn

  The dash icon for Ubuntu 13.04 was "released", and a how-to on OMG! Ubuntu! Was written. Now, I followed all of the instructions, and the assets installed fine. Oh they installed alright, and now I can't get rid of them! I went through the multiple posts, but since this seems to be a new problem, none of the answers were working, and nothing new was appearing! So what I did, was I went into Gnome-Classic, just for old times sake, and I wanted to hide from the new 13.04 icons I didn't really take to. And of course what should appear covering my top, and bottom panels, but the Unity dock, with it's 13.04 Dash icon and everything. Wait, how did unity make it's way into my gnome-classic environment? I'm not really sure, but after about an hour of fooling around with Unity-Tweak and the compiz configuration, I needed something new. Would it be a bad idea to reinstall? At this point, nothing much would be lost, but I would like to stray from that idea.

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• Large enterprise application - clients wish to use duplicate e-mails addresses?

  - by Alex Key

  I'd like to know people's opinions, reactions to clients and technical work arounds (if applicable), to the issue of an enterprise application where a client wishes to use duplicate e-mail addresses? To clarify, when I say duplicate e-mail addresses I mean within the same client system, having multiple users that have the same e-mail address. So not just using generic e-mail addresses but using the e-mail address of another user. e.g. Bob Jenkins: [email protected] James Jeffery: [email protected] Context To give this some further context, in the e-learning sector it is common that although all staff in an organisation must complete e-learning - they may not have their own e-mail address so they choose to use their managers e-mail address. Albeit against good practice in public sites... it's a requirement we've over and over again where an organisation is split between office based staff and perhaps e.g. staff in a warehouse. Where problem lies Mr Steak, good point, the problem lies in password resets and perhaps in situations where semi-personal information could be sent (not confidential enough to worry about the insecurities of email). Perhaps reminders for specific system actions, which would be confusing for the unintended party to see (if perhaps misreading the e-mail's intended recipient) Possible solutions System knowing the difference between a "for the attention of" and direct to the person e-mails, including this in the body text. Using alternative communication such as SMS Simply not having e-mails sent to people who are not the intended recipient. Providing an e-mail service ourselfs (not really viable for a corporate IT dept) Thoughts?

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• How do I set up different configurations on an Ubuntu laptop based on different physical locations?

  - by Andrew Larned

  I'm looking for a way to have a couple (or three) multiple configurations set up on my laptop, and easily switch between them. To be more specific, when my laptop is at work, it's plugged into a second monitor, and has a specific set of networks configurations. At home, the second monitor is gone, the network configurations are different. At a public wireless point there are other configurations to set, etc. I know I can go into my preferences and turn on/turn off the monitor, and mess with the networking preferences, and so on, but I'm looking for a way to change a bunch of preferences all at once, and if it's possible to do that automatically, maybe based on the wireless APs in the vicinity, that would be even better.

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• Apache fails silently after installation of MapServer 6.2.0

  - by wnstnsmth

  I've recently compiled MapServer 6.2 on a CentOS 6.3 machine, using ./configure --with-ogr=/usr/bin/gdal-config --with-gdal=/usr/bin/gdal-config --with-proj=/usr --with-geos=/usr/bin/geos-config --with-postgis=/usr/bin/pg_config --with-php=/usr/include/php --with-wfs --with-wfsclient --with-wmsclient --enable-debug --with-threads --with-wcs --with-sos --with-gd --with-freetype=/usr/bin --with-jpeg --with-cairo --with-curl if that is of interest, anyway. So after that, Apache/2.2.15 silently fails to restart, i.e. when apachectl graceful, it says "httpd not running, trying to start". There is nothing of interest in the Apache errors_log, /var/log/messages, and it is weird because so far it has always worked. Restarting the machine multiple times did not solve the problem. Some other stuff I did: [root@R12X0210 cgi-bin]# service httpd status httpd is stopped [root@R12X0210 cgi-bin]# ps aux|grep httpd root 1846 0.0 0.0 103236 864 pts/0 S+ 12:11 0:00 grep httpd I suspect this might have something to do with a php module that was altered/added by MapServer, but I don't really know... I don't even know how to properly debug this.

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• How to create *.idx subtitle files

  - by ashwnacharya

  I am trying to play movies from a USB drive on my DVD player. I have subtitles for different languages for a movie. (filename.en.srt, filename.fr.srt etc) When I place all the *.srt files in the same directory as the movie file, the DVD player recognises only the first one. However, if there is only one *.sub file which contains all the language subtitles, and an indexer *.idx file, then the DVD player is able to recognise all the language subtitles. Can I create an *.idx file manually? Or Is there any software which allows me to create an idx file that indexes multiple *.srt files or combines them?

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• Long-term Freelance contract: should it have a salary-day or not?

  - by otto

  I don't like to speak about money. I just like to work. I still believe in a relationship between good work and good compensation. Hence I don't want ask my employer about my compensations, actually they are asking me. So I created a liberal contract with unspecified salary-day -- I did not want to lose my rights to my own projects and I did not pay any attention to the salary-day. Now the firm said that they would have paid me 1 month earlier if I had provided a tax -paper. I provided it before the next payment -day (unspecified). During the next month, the co-employer pretty much blocks my working -- does not allow me to access working repository and the co-employer goes to cruise when we should finalize a project so I cannot do anything. Now the project is not finalized, the co-employer has apparently provided some false statements to the boss about my doings (not getting anything for one month's work and 1 month when the co-employer pretty much wasted just my time) -- I was only allowed to debug the code of my co-employer and not to do anything. I feel that co-employer did not allow me to work by purpose so that they have an excuse not to pay any salary. The co-employer says that I cannot speak to the boss. The boss say that I need to speak directly to co-employer, not to him. I haven't said anything about the situation. I did not get things done because I was not allowed and now I am not even allowed to speak. Boss is the person who pays salaries. But both boss and co-employer have stages in the firm -- I think co-employer and boss are the same person pretty much, they created a theatre so that they get almost 2 month's work for free. Now I have multiple ideas how to avoid this kind of situations in the future: specify the salary day make sure you can speak directly to the manager and the boss, not through middle-hand other?

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• How to do a multishot in xna?

  - by DeVonte

  I am trying to simulate a gun in which shoots multiple bullets at the same time(similar to a spread out shot). I am thinking I have to create another bullet array then do the same as I have below but in a different direction. Here is what I have so far: foreach (GameObject bullet in bullets) { // Find a bullet that isn't alive if (!bullet.alive) { //And set it to alive bullet.alive = true; if (flip == SpriteEffects.FlipHorizontally) //Facing right { float armCos = (float)Math.Cos(arm.rotation - MathHelper.PiOver2); float armSin = (float)Math.Sin(arm.rotation - MathHelper.PiOver2); // Set the initial position of our bullets at the end of our gun arm // 42 is obtained by taking the width of the Arm_Gun texture / 2 // and subtracting the width of the Bullet texture / 2. ((96/2)=(12/2)) bullet.position = new Vector2( arm.position.X + 42 * armCos, arm.position.Y + 42 * armSin); // And give it a velocity of the direction we're aiming. // Increae/decrease speed by changeing 15.0f bullet.Velocity = new Vector2( (float)Math.Cos(arm.rotation - MathHelper.PiOver4 + MathHelper.Pi + MathHelper.PiOver2), (float)Math.Sin(arm.rotation - MathHelper.PiOver4 + MathHelper.Pi + MathHelper.PiOver2)) * 15.0f; } else //Facing left { float armCos = (float)Math.Cos(arm.rotation + MathHelper.PiOver2); float armSin = (float)Math.Sin(arm.rotation + MathHelper.PiOver2); //Set the initial position of our bullet at the end of our gun arm //42 is obtained be taking the width of the Arm_Gun texture / 2 //and subtracting the width of the Bullet texture / 2. ((96/2)-(12/2)) bullet.position = new Vector2( arm.position.X - 42 * armCos, arm.position.Y - 42 * armSin); //And give it a velocity of the direction we're aiming. //Increase/decrease speed by changing 15.0f bullet.Velocity = new Vector2( -armCos, -armSin) * 15.0f; } return; }// End if }// End foreach

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• andEngine dynamic sprites

  - by Blucreation

  Ive just started with andEngine the past week and i only started learning java/android 3 weeks. I can use a for loop to add multiple sprites to the screen but when i try to check collisions on them it only does it to one and not the rest. I want to be able to add a specific number for sprites made from the same texture to the scene, add collision detection to them and also make them slide across the screen (im making a game where you avoid the obstacles). My simple code: private void createobstacle(float pX, float pY) { obstacle = new AnimatedSprite(pX, pY, this.mObjTextureRegion.deepCopy(), getVertexBufferObjectManager()); obstacle.setScale(MathUtils.random(0.5f, 3f)); scene.attachChild(obstacle); } private void createobstacle(int num) { for(int i=0; i<=num; i++ ) { final float xPos = MathUtils.random(30.0f, (CAMERA_WIDTH - 30.0f)); final float yPos = MathUtils.random(30.0f, (CAMERA_HEIGHT - 30.0f)); createobstacle(xPos, yPos); } } Ive read about arrays but i cannot find any tutorials about anything im stuck with. Any help would be great!

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• Why is Windows registry needed?

  - by Job

  As I have debugged problems in com, side by side, dealt with dll hell, all while hating the windows registry with passion, I was wondering why is it needed. I never felt compelled to read an entire book on registry best practices, and then just "get it". I have, however, used Linux and Mac OS, and look at the ways one can install multiple versions of Python and its libraries on the same *nix computer. Because registry has somewhat of a free (albeit ugly) format, and is used for all sorts of purposes, I have never understood what essential problem it is trying to solve. For instance, Microsoft does not want you to have two different versions of MS Office installed side by side. They use registry to enforce this during installation. This limitation is artificial, in my opinion. If they really cared to allow a different behavior, they could have adjusted their architecture accordingly. In Mac OS you can install and remove apps by just dropping them into a particular folder. So, A) What essential problem it is trying to solve? B) How do other operating systems solve it?

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• Why would Java app make RPC call to itself?

  - by amphibient

  I am working with a multithreaded homegrown multi-module app in my new job. We use the the Thrift protocol to communicate RPC calls between different stand-alone applications in a distributed system. One of them listens on multiple ports and I just noticed that it actually makes an RPC call to itself from one thread invoked from one socket it listens to (web service call) to another port within the same app. I verified that it could accomplish the same thing if it just went and directly called the method that the remote procedure ultimately invokes as it is all within the same application, same JVM. To make it even more mysterious, the call is completely synchronous, i.e. no callbacks involved. The first thread totally sits and waits until it makes a call across the wire to itself and comes back. Now, I am perplexed why anybody would do it this way. It seems like calling somebody on the phone that sits in the same room as you do. Can anybody provide an explanation why the developer before me would come up with the above mentioned model? Maybe there is a reason and I am missing something.

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• Is there a way to obtain a Dell server's RAID configuration/level using only winrm/wsman? (ESXi servers)

  - by EGr

  I've seen videos describing how to configure RAID using wsman/winrm commands run against a server's iDRAC, but I can't seem to find anything that will just give me the current configuration and RAID levels. Is this possible? What uri would I use? If it matters, this is being run against M610s. Edit: If there is an easier way to obtain this information by running a script against the iDRAC, I'm not opposed to switching my methods. EDIT: The server is running ESXi, so if there is a way to obtain this through the vSphere client or PowerCLI, I can do that too. Overall, I just need a way to obtain the RAID configuration for multiple servers without having to query against the actual server (eg: via the iDRAC).

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• Does Firefox Phishing Protection / Safebrowsing have any privacy implications?

  - by Nowo

  The current google results are outdated. What is the current status? I was on www.mozilla.org/en-US/legal/privacy/firefox.html and saw "Protection Against Suspected Forgery and Attack Sites Features". Can you translate please more to human speak? First they download a list and compare local... Ok... Here it gets messy "If there is a match, Firefox will check with its third party provider to ensure that the website is still on the blacklist. The information sent between Firefox and its third party provider(s) are hashed URLs. In fact, multiple hashed URLs are sent with the real hash so that the third party provider(s) will not know what site you are visiting." - If that hash were send to mozilla, they would knew which site were accessed? "In order to safeguard your privacy, Firefox will not transmit the complete URL of web pages that you visit to anyone other than Mozilla and its service providers." - In other words, Mozilla and its service providers get all complete URLs (of sites, which were in blacklist)? "While it is possible that a third party service provider may determine the actual URL from the hashed URL sent, Mozilla’s policy is to require [...]" - Privacy is depends on policy rather than technology?

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• Virtual Hosting in RHEL5

  - by Kumar P

  We having RHEL5 linux server with few windows xp clients. We providing web development in php. Now my developers as for common local php server for keep their projects in same place. Currently proxy server and samba sharing are running in RHEL5 server. I installed httpd,php,MySQL in server. And i would like to configure virtual hosting too for LAN. What i want do for it ? In server we have 2 Ethernet ports, 1 for local connection and another one for Internet. Internet provided by ADSL provider. (192.168.0.0 series for ADSL modem connection and 10.1.1.0 for LAN connection. If i want to use virtual hosting , am i want to setup local DNS server ? My requirements are, setup php with mySQL server for Local clients with multiple hosting , without disturbing proxy and samba. Help me to solve it.

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• design for supporting entities with images

  - by brainydexter

  I have multiple entities like Hotels, Destination Cities etc which can contain images. The way I have my system setup right now is, I think of all the images belonging to this universal set (a table in the DB contains filePaths to all the images). When I have to add an image to an entity, I see if the entity exists in this universal set of images. If it exists, attach the reference to this image, else create a new image. E.g.: class ImageEntityHibernateDAO { public void addImageToEntity(IContainImage entity, String filePath, String title, String altText) { ImageEntity image = this.getImage(filePath); if (image == null) image = new ImageEntity(filePath, title, altText); getSession().beginTransaction(); entity.getImages().add(image); getSession().getTransaction().commit(); } } My question is: Earlier I had to write this code for each entity (and each entity would have a Set collection). So, instead of re-writing the same code, I created the following interface: public interface IContainImage { Set<ImageEntity> getImages(); } Entities which have image collections also implements IContainImage interface. Now, for any entity that needs to support adding Image functionality, all I have to invoke from the DAO looks something like this: // in DestinationDAO::addImageToDestination { imageDao.addImageToEntity(destination, imageFileName, imageTitle, imageAltText); // in HotelDAO::addImageToHotel { imageDao.addImageToEntity(hotel, imageFileName, imageTitle, imageAltText); It'd be great help if someone can provide me some critique on this design ? Are there any serious flaws that I'm not seeing right away ?

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• CPU sometimes hangs at 50% maximum on Windows 8

  - by Martin.

  Recently I installed Windows 8 on my HP ProBook 6450b and it appears I've got problems when using more than one program at once. Sometimes, when I run multiple programs at once, CPU hangs at 49% and never goes up. I suspect it has something to do with CPU throttling, because sometimes it just goes over 49%. I've got my notebook connected to charger and my plan is set to "Active cooling". The weird thing is that this happens only occasionally. I found nothing in my BIOS that could change this kind of things.

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