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• Pagination for product listing, what to use? "canonical" or "rel-prev-next" or do nothing?

  - by Jayapal Chandran

  I want to make sure my product listing is 10 products per page which are not in a series (link). They have explained how to use canonical or rel prev for pagination when a long page has been divided into multiple page and the multiple pages becomes a series were as my condition is not that. They are unique listing which are not related to each listing... All the listing links leads to a product profile page. So lets say my site is all about cars and I have a Used Audi page with 1000 Audi's for sale. There are 10 used audi cars on each page so there's 100 pages in the series. If I start to utilise Rel="prev" and rel="next" should I set page 2 onwards as index,follow or noindex,follow? The content on Page 2 all the way to 100 only changes ever so slightly as different cars will be for sale on different pages but from a "Panda" point of view the pages are incredibly similar as they'd hold the same meta data as page 1 in the series along with duplicate reviews & news etc. I want Page 1 in the series as the Main page for Google to send users too and I don't see the point in Google indexing page 2 100. What's everyone's view on this? Lastly with the rel="canonical" tag should page 2 to 100 all point back to page 1 in the series or the individual page itself? E.G: /used-audi/page-3/.

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• Using AdSense to show ads to logged-in users

  - by John

  I know that you can grant authorization permissions to Google AdSense so that it can 'log in' and see what other logged in users can see (e.g. in a private forum), so that the ads it displays are better targetted. Extending this principle further: I am making a site which will show completely different content for each individual user (i.e. not 'common' content like a forum in which everybody sees essentially the same thing). You could think of this content as similar to the way each Facebook user has a different news feed, but it is the 'same' page. Complicating things further, the URLs for this site will be simple, e.g. '/home' and '/somepage', and will not usually include unique identifiers to differentiate between users (e.g. '/home?user=32i42'). My questions are: Is creating an account purely for AdSense to log in to the site with worth it in this case, seeing as it will be seeing it's own 'personalized' version and not any other user's? More importantly: is that against the Google AdSense Terms of Service? (I can't seem to figure that one out) How would you go about this problem?

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• 8 Reasons to Attend Oracle OpenWorld 2012

  - by kgee

  Every year, the Oracle Hardware team recognizes the unique buzz that accompanies the season of OpenWorld. During the late nights kept possible by the grace of caffeine combined with the stress and eagerness for the event to run smoothly, we like to remind ourselves of why all our hard work is going to pay off. So, now that we've registered, here are some of our top reasons that we’re excited for Oracle OpenWorld 2012: The KeynotesJust to name a few...Larry Ellison, Mark Hurd, Thomas Kurian, John Fowler and many more are speaking live. We're expecting to walk away from the keynotes with a new frame of reference on a vast array of hot topics. NetworkingWhether it's through means of the OpenWorld Lounges, social media, or bars and cafes around Moscone Center, we'll be surrounded by people who are experts in the hardware field. Hardware SessionsThere are enough sessions to satisfy every Oracle hardware knowledge need. Hardware Experts in GeneralSo many experts that we wish we could be in two places at once sometimes. Pearl Jam & Kings of LeonRock out with these two legendary bands at the Oracle Appreciation Event! Oracle Music FestivalJoss Stone, Macy Gray, the Hives, and Jimmy Cliff will be welcome escapes at the end of each day at OpenWorld, and are just a couple more reasons these all nighters before OpenWorld are worth it. ORACLE TEAM USA and the America's Cup trophyAfter the sailors take on San Francisco Bay for Fleet Week, we’ll be soliciting them for autographs and taking pictures with them at OpenWorld. Location, Location, LocationThe Moscone Center is beautiful and in the best location in San Francisco. We know the OpenWorld hype will get to us sometimes, and it's nice to know that we have pretty much everything San Francisco has to offer at our finger tips. Why are you excited for #OOW? Tell us why!

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• Let Devoxx 2011 begin!

  - by alexismp

  Devoxx 2011 is kicking off today and Oracle will be well represented for all its Java efforts. Here's a quick rundown of the Java EE and GlassFish side of things. Cameron Purdy, now responsible for the entire Oracle middleware stack (WebLogic, GlassFish, TopLink, Coherence) will host the Java EE keynote, mostly focused on Java EE 7. There will be sessions on individual JSRs by spec leads : Nigel Deakin for JMS 2.0, Marek Potociar for JAX-RS 2.0, and Greg Luck (EHCache) for JSR107 / javax.cache. Oracle's Shaun Smith will also cover JPA 2.1 with some of the unique EclipseLink features such as multi-tenancy. BOFs on Java EE.next and CDI are also planned during the week. Finally, Arun Gupta will be delivering a complete Java EE 6 hands-on lab. There will also be GlassFish-related sessions. A first one will focus on the current state of the community and product (3.1.x) with customers production stories, while GlassFish architect Jerome Dochez will walk you through the enhancements the team is working on for Java EE 7 and GlassFish 4 - virtualization, PaaS, elasticity and more. Last but not least, our good friends from Serli will discuss their latest GlassFish contributions on Application versioning and high-availability rolling upgrades.

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• An alternative to multiple inheritance when creating an abstraction layer?

  - by sebf

  In my project I am creating an abstraction layer for some APIs. The purpose of the layer is to make multi-platform easier, and also to simplify the APIs to the feature set that I need while also providing some functionality, the implementation of which will be unique to each platform. At the moment, I have implemented it by defining and abstract class, which has methods which creates objects that implement interfaces. The abstract class and these interfaces define the capabilities of my abstraction layer. The implementation of these in my layer should of course be arbitrary from the POV view of my application, but I have done it, for my first API, by creating chains of subclasses which add more specific functionality as the features of the APIs they expose become less generic. An example would probably demonstrate this better: //The interface as seen by the application interface IGenericResource { byte[] GetSomeData(); } interface ISpecificResourceOne : IGenericResource { int SomePropertyOfResourceOne {get;} } interface ISpecificResourceTwo : IGenericResource { string SomePropertyOfResourceTwo {get;} } public abstract class MyLayer { ISpecificResourceOne CreateResourceOne(); ISpecificResourceTwo CreateResourceTwo(); void UseResourceOne(ISpecificResourceOne one); void UseResourceTwo(ISpecificResourceTwo two); } //The layer as created in my library public class LowLevelResource : IGenericResource { byte[] GetSomeData() {} } public class ResourceOne : LowLevelResource, ISpecificResourceOne { int SomePropertyOfResourceOne {get{}} } public class ResourceTwo : ResourceOne, ISpecificResourceTwo { string SomePropertyOfResourceTwo {get {}} } public partial class Implementation : MyLayer { override UseResourceOne(ISpecificResourceOne one) { DoStuff((ResourceOne)one); } } As can be seen, I am essentially trying to have two inheritance chains on the same object, but of course I can't do this so I simulate the second version with interfaces. The thing is though, I don't like using interfaces for this; it seems wrong, in my mind an interface defines a contract, any class that implements that interface should be able to be used where that interface is used but here that is clearly not the case because the interfaces are being used to allow an object from the layer to masquerade as something else, without the application needing to have access to its definition. What technique would allow me to define a comprehensive, intuitive collection of objects for an abstraction layer, while their implementation remains independent? (Language is C#)

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• Good design for a simple site that contains a blog

  - by bporter

  What is a good design for a simple web site with mostly static pages and a blog? I am helping a friend build this for their small business. We are looking for a simple approach that can be implemented fairly quickly. (I am a programmer and can help with coding, hosting, etc.) One option is to use a site like virb, which lets you choose from one of their themes and build a site pretty easily. You can also include a blog. They host the site for a pretty low monthly rate. I recommended this option, but my friend wants a design that is unique and custom. So, I took one of the themes and started modifying the HTML and CSS. This might still be a good option, but... ...If we are going to greatly modify it, why not just create the static pages from scratch and use something like Wordpress for the blog. Is this a good option? It looks fairly easy to integrate Wordpress with a site so that the design and behavior are really cohesive. Is this a good idea? Do you recommend any other approaches?

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• IASA South East Florida Chapter &ndash; November 2012 Meeting

  - by Rainer Habermann

  After a short introduction by Rainer Habermann and announcements for the chapter and promoting the upcoming IASA IFC Certification Class in January 2013 at Citrix, the audience was exited to welcome Jesus Rodriquez for the main presentation about “Mobilizing the Enterprise”.       Jesus is a co-founder and CEO of both Tellago Studios and Tellago, two fast growing start-ups with a unique vision around software technology. Jesus spends his days working on the technology and strategic vision of both companies. Under his leadership, Tellago and Tellago Studios have been recognized as an innovator in the areas of enterprise software and solutions achieving important awards like the Inc500, American Business Awards’ American and International Business Awards. A software scientist by background, Jesus is an internationally recognized speaker and author with contributions that include hundreds of articles and sessions at industry conferences. Jesus serves as an advisor to several software companies such as Microsoft and Oracle, and is the only person who holds both the Microsoft MVP and Oracle ACE awards. Jesus introduced the architecture of the Enterprise Mobile Backend as a service, integrating enterprise mobile applications with corporate line of business systems and providing robust backend capabilities represent some of the major challenges in today’s enterprise mobility solutions. The mobile consumer space has seen the emergence of backend as a service technologies as one of the main mechanisms for enabling backend capabilities in mobile applications. This session introduced the concept of mobile backend as a service (MBaaS) as the fundamental enabler of the next generation enterprise mobile applications. The session further explored the fundamental components and services of a mBaaS platform that makes it an ideal option for enabling backend capabilities in enterprise mobile applications. Using real world examples. Jesus demonstrated how mBaaS represents an agile and extremely simple model to integrate mobile applications with corporate systems. Thank you very much to Jesus Rodriquez for an outstanding presentation, Peak 10 Data Centers for hosting our meeting, and to TEK Systems for Snacks. Pictures taken by Ted Harwood.   Rainer Habermann President IASA SE Florida Chapter

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• How to keep background requests in sequence

  - by Jason Lewis

  I'm faced with implementing interfaces for some rather archaic systems, for handling online deposits to stored value accounts (think campus card accounts for students). Here's my dilemma: stage 1 of the process involves passing the user off to a thrid-party site for the credit card transaction, like old-school PayPal. Step two involves using a proprietary protocol for communicating with a legacy system for conducting the actual deposit. Step two requires that each transaction have a unique sequence number, and that the requests' seqnums are in order. Since we're logging each transaction in Postgres, my first thought was to take a number from a sequence in the DB, guaranteeing uniqueness. But since we're dealing with web requests that might come in near-simultaneously, and since latency with the return from the off-ste payment processor is beyond our control, there's always the chance for a race condition in the order of requests passed back to the proprietary system, and if the seqnums are out of order, the request fails silently (brilliant, right?). I thought about enqueuing the requests in Redis and using Resque workers to process them (single worker, single process, so they are processed in order), but we need to be able to give the user feedback as to whether the transaction was processed successfully, so this seems less feasible to me. I've tried to make this application handle concurrency well (as much as possible for a Ruby on Rails app), but now we're in a situation where we have to interact with a system that is designed to be single process, single threaded, and sequential. If it at least gave an "out of order" error, I could just increment (or take the next value off the sequence), but it's designed to fail silently in the event of ANY error. We are handling timeouts in a way that blocks on I/O, but since the application uses multiple workers (Unicorn), that's no guarantee. Any ideas/suggestions would be appreciated.

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• Is there such a thing as a super programmer? [closed]

  - by Muhammad Alkarouri

  Have you come across a super programmer? What identifies him or her as such, compared to "normal" experienced/great programmers? Also. how do you deal with a person in your team who believes he is a super programmer? Both in case he actually is or if he isn't? Edit: Interesting inputs all round, thanks. A few things can be gleaned: A few definitions emerged. Disregarding too localised definitions (that identified the authors or their acquaintance as super programmers), I liked a couple definitions: Thorbjørn's definition: a person who does the equivalent of a good team consistently for a long time. Free Electron, linked from Henry's answer. A very productive person, of exceptional abilities. The explanation is a good read. A Free Electron can do anything when it comes to code. They can write a complete application from scratch, learn a language in a weekend, and, most importantly, they can dive into a tremendous pile of spaghetti code, make sense of it, and actually getting it working. You can build an entire businesses around a Free Electron. They’re that good. Contrasting with the last definition, is the point linked to by James about the myth of the genius programmer (video). The same idea is expressed as egoless programming in rwong's comment. They present opposite opinions as whether to optimise for such a unique programmer or for a team. These definitions are definitely different, so I would appreciate it if you have an input as to which is better. Or add your own if you want of course, though it would help to say why it is different from those.

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• How to retain secondary hard drive mounts at reboot and keep shares?

  - by Tom

  I'm running Ubuntu 12.04. A second hard drive connected to this computer does not mount when the computer boots. Additionally, I have set up the drive to be shared but the share is not retained, the share is lost after each boot. My main system drive and a removable drive mount OK and shares remain between boots. Additional information follows: D2Linux sda1 is the secondary hard drive L-Freeagent sdc1 is the removeable drive Here is the contents of fstab immediately after booting (D2Linux /dev/sda1 not yet mounted): '# /etc/fstab: static file system information. ' '# ' '# Use 'blkid' to print the universally unique identifier for a ' '# device; this may be used with UUID= as a more robust way to name devices ' '# that works even if disks are added and removed. See fstab(5). ' '# ' '# ' proc /proc proc nodev,noexec,nosuid 0 0 '# / was on /dev/sdb1 during installation ' UUID=43d29a82-66b3-40f3-91ed-735a27a60004 / ext4 errors=remount-ro 0 1 '# swap was on /dev/sdb5 during installation UUID=cf8e3351-11d0-487a-8a6e-e499c2e88a10 none swap sw ' 0 0 Here is the output of mount with all drives mounted (I did not restore the share): /dev/sdb1 on / type ext4 (rw,errors=remount-ro) proc on /proc type proc (rw,noexec,nosuid,nodev) sysfs on /sys type sysfs (rw,noexec,nosuid,nodev) none on /sys/fs/fuse/connections type fusectl (rw) none on /sys/kernel/debug type debugfs (rw) none on /sys/kernel/security type securityfs (rw) udev on /dev type devtmpfs (rw,mode=0755) devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620) tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755) none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880) none on /run/shm type tmpfs (rw,nosuid,nodev) gvfs-fuse-daemon on /home/tom/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,user=tom) /dev/sdc1 on /media/L-Freeagent type ext4 (rw,nosuid,nodev,uhelper=udisks) /dev/sda1 on /media/D2Linux type ext4 (rw,nosuid,nodev,uhelper=udisks) Thank you!

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• All files on automounted NTFS partition are marked as executable

  - by MHC

  I have set up an NTFS partition to automount via fstab: # /etc/fstab: static file system information. # # Use 'blkid' to print the universally unique identifier for a # device; this may be used with UUID= as a more robust way to name devices # that works even if disks are added and removed. See fstab(5). # # <file system> <mount point> <type> <options> <dump> <pass> proc /proc proc nodev,noexec,nosuid 0 0 # / was on /dev/sda7 during installation UUID=e63fa8a2-432f-4749-b9db-dab328807d04 / ext4 errors=remount-ro 0 1 # /boot was on /dev/sda4 during installation UUID=e9ad1bb4-7c1f-4ea9-a6a5-799dfad71c0a /boot ext4 defaults 0 2 # /home was on /dev/sda8 during installation UUID=eda8c755-5448-4de8-b58c-9cb75823c22d /home ext4 defaults 0 2 # swap was on /dev/sda9 during installation UUID=804ff3a7-e5dd-406a-b63c-e8f3c635fbc5 none swap sw 0 0 #Windows-Partition UUID=368CEBC57807FDCD /media/Share ntfs defaults,uid=1000,gid=1000,noexec 0 0 As you can see I have added the noexec bit to the configuration. Why? Because any file I create on or move to the partition is automatically marked as executable. The problem is that there is no way of changing that through nautilus. I cannot uncheck the "Allow executing file as program" option. The noexec option doesn't help, unfortunately. It only prevents nautilus from displaying the "run" or "read" dialog but doesn't change the executable flag. Is there any way I can fix this?

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• website attack form submission triggering emails related questions

  - by IberoMedia

  We are experiencing website attacks that trigger the submission of a form, and send alert emails. Normal process of form submission is to fill up a couple of text fields, and when the user is redirected, the next page processes $_POST. If $_POST exists, then the email to intended form recipients is triggered. What is happening right now, we are receiving the email of the form submission, three emails at a time with same information. The information per email is the same, but not all of the spam emails contain the same information, each batch of triggered emails has unique information. The form has no captcha, and if possible we would like to keep it this way. The website has worked fine and had no spamming problems until today. We have monitoring software for the website, but whoever is submitting this form over and over is not being recorded by the tracking software WHY IS THIS? IS THE PERSON ACTUALLY VISITING THE WEBSITE? The only suspicious visit tracked was on November 10th, and this record ALSO shows three forms submitted (this is how I identified possible first visit by attacker). Then no incidents until today. WHAT IS THE GOAL of the spam attack? Is the attacker expecting us to respond to the bogus emails? What can they achieve with repeated submission of form Why are three emails triggered in the row? Is this indicative that they may be using a script? This is a PHP website. Is there a way for a client to view the PHP code of a page? Thank you

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• What's the best practice to do SOA exception handling?

  - by sun1991

  Here's some interesting debate going on between me and my colleague when coming to handle SOA exceptions: On one side, I support what Juval Lowy said in Programming WCF Services 3rd Edition: As stated at the beginning of this chapter, it is a common illusion that clients care about errors or have anything meaningful to do when they occur. Any attempt to bake such capabilities into the client creates an inordinate degree of coupling between the client and the object, raising serious design questions. How could the client possibly know more about the error than the service, unless it is tightly coupled to it? What if the error originated several layers below the service—should the client be coupled to those lowlevel layers? Should the client try the call again? How often and how frequently? Should the client inform the user of the error? Is there a user? By having all service exceptions be indistinguishable from one another, WCF decouples the client from the service. The less the client knows about what happened on the service side, the more decoupled the interaction will be. On the other side, here's what my colleague suggest: I believe it’s simply incorrect, as it does not align with best practices in building a service oriented architecture and it ignores the general idea that there are problems that users are able to recover from, such as not keying a value correctly. If we considered only systems exceptions, perhaps this idea holds, but systems exceptions are only part of the exception domain. User recoverable exceptions are the other part of the domain and are likely to happen on a regular basis. I believe the correct way to build a service oriented architecture is to map user recoverable situations to checked exceptions, then to marshall each checked exception back to the client as a unique exception that client application programmers are able to handle appropriately. Marshall all runtime exceptions back to the client as a system exception, along with the stack trace so that it is easy to troubleshoot the root cause. I'd like to know what you think about this? Thank you.

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• Another big year for the ADF EMG at OOW12

  - by Chris Muir

  Oracle Open World 2012 has only just started, but in one way it's just finished!  All the ADF EMG's OOW content is over for another year! The unique highlight this year for me was the first ever ADF EMG social night held on Saturday, where I finally had the chance to meet so many ADF community members who I've known over the internet, but never met in person.  What?  You didn't get an invite?  Oh well, better luck next year ;-) Seriously our budget was limited, so in the happy-dictatorship sort of way I had to limit RSVPs to just 40 people.  Hopefully next year we can do something bigger and better for the wider community. Following directly on from the Saturday social night the ADF EMG ran a full day of sessions at the user group Sunday.  I wont go over the content again, but to say thank you very much to all our presenters and helpers, including Gert Poel, Pitier Gillis, Aino Andriessen, Simon Haslam, Ken Mizuta, Lucas Jellema and the FMW roadshow team, Ronald van Luttikhuizen, Guido Schmutz, Luc Bors, Aino Andriessen and Lonneke Dikmans. Also special thanks must go to Doug Cockroft and Bambi Price for their time and effort in organizing the ADF EMG room behind the scenes via the APOUC. To be blunt Doug and Bambi really do deserve serious thanks because they had to wear a lot of Oracle politics behind the scenes to get the rooms organized (oh, and deal with me fretting too! ;-). Finally thanks to all the members and OOW delegates for turning up and supporting the group on the day.  In the end the ADF EMG exists for you, and I hope you found it worthwhile. Onto 2013 (oh, and the rest of OOW12 ;-) 

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• Effortlessly resize images in Orchard 1.7

  - by Bertrand Le Roy

  I’ve written several times about image resizing in .NET, but never in the context of Orchard. With the imminent release of Orchard 1.7, it’s time to correct this. The new version comes with an extensible media pipeline that enables you to define complex image processing workflows that can automatically resize, change formats or apply watermarks. This is not the subject of this post however. What I want to show here is one of the underlying APIs that enable that feature, and that comes in the form of a new shape. Once you have enabled the media processing feature, a new ResizeMediaUrl shape becomes available from your views. All you have to do is feed it a virtual path and size (and, if you need to override defaults, a few other optional parameters), and it will do all the work for you of creating a unique URL for the resized image, and write that image to disk the first time the shape is rendered: <img src="@Display.ResizeMediaUrl(Path: img, Width: 59)"/> Notice how I only specified a maximum width. The height could of course be specified, but in this case will be automatically determined so that the aspect ratio is preserved. The second time the shape is rendered, the shape will notice that the resized file already exists on disk, and it will serve that directly, so caching is handled automatically and the image can be served almost as fast as the original static one, because it is also a static image. Only the URL generation and checking for the file existence takes time. Here is what the generated thumbnails look like on disk: In the case of those product images, the product page will download 12kB worth of images instead of 1.87MB. The full size images will only be downloaded as needed, if the user clicks on one of the thumbnails to get the full-scale. This is an extremely useful tool to use in your themes to easily render images of the exact right size and thus limit your bandwidth consumption. Mobile users will thank you for that.

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• Logistics of code reuse (OOP)

  - by Ominus

  One of the driving points behind OOP is code reuse. I am curious about the actual logistics of this and how others both in team or solo handle it. For example lets say you have 5 projects you have worked on and between them you have a ton of classes that you think would be useful in other projects. How do you store them? Are they just in the normal project repository or do you break out the relevant classes and have them (as now copies) in another unique source repository that only houses code pieces that are intended to be reused? How do you go about finding or even knowing that there is a good piece of code out there that you should reuse? It's easier if your solo because you remember that you have coded something similar but even then it becomes kind of a stretch. If there is some way that you are storing these pieces of code do you then also have them indexed and searchable by tag or something. I fear that it just boils down to some tribal knowledge that you just know that for situation A i need solution B and we have a good piece of code that already can help here. A bit verbose but I hope you get what I am aiming at. If you think of a better way to make the question clearer please have at it :) TIA!

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• Liberate Your Laptops! The Return of Virtual Developer Day

  - by Justin Kestelyn

  Many enterprises are reducing travel, conference, and training budgets for their developers without any change in expectation for the results those developers must deliver. How can you keep up? Well, some months back we offered you a Virtual Developer Day on the subject of building Rich Enterprise Applications, the key piece of which was free access to a cloud development environment for hands-on. Now it's back, new and improved! Join us for a FREE, online, multi-language event series for developers (English version is on July 27) at Oracle Technology Network 's Virtual Developer Day. This unique one-day event provides you the opportunity to: 1. Get trained on Oracle Tuxedo from the comfort of your laptop 2. Get hands-on, locally with Oracle VM VirtualBox or via the Cloud 3. Learn what Python, Ruby, and PHP have to do with Oracle Tuxedo 4. Network online with peers, Oracle Tuxedo architects and developers worldwide 5. Sessions, Labs, and Live Help in LOCAL Languages! Review the agenda details, dates, and language support options. Space is limited, so register for this event now! For information and to register go to: www.oracle.com/goto/otnvdd

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• How should I structure my database to gain maximum efficiently in this scenario?

  - by Bob Jansen

  I'm developing a PHP script that analyzes the web traffic of my clients websites. By placing a link to a javascript on the clients website (think of Google Analyses), my script harvests information like: the visitors IP address, reference link, current page link, user agent, etc. Now my clients can view these statistics via a control panel that I have build. These clients can also adjust profile settings, set firewall rules, create support tickets and pay invoices. Currently all the the traffic is stored in one table. You can imagine that this tabel would become very large as some my clients receive thousands of pageviews per day. Furthermore, all the traffic data of each client would be stored in the same table, creating a mess. This is the same for the firewall rules currently, and the invoice and support system. I'm looking for way to structure my database in a more organized way to hold large amounts of data of multiple users. This is the first project that I'm developing that deals with so much data, and would like to hear suggestions and tips. I was thinking of using multiple databases to structure the data. The main database will store users data (email,pass,id,etc) admin/website settings. Than each client will have an unique database labeled prefix_userid, which carry tables holding their traffic, invoice, and support ticket data. Would this be a solution, and would it slow down or speed up overall performances (that is spreading the data over muliple databases). I have a solid VPS, but would like to safe and be as effient as possible.

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• What is the philosophy/reasoning behind C#'s Pascal-casing method names?

  - by Nocturne

  I'm just starting to learn C#. Coming from a background in Java, C++ and Objective-C, I find C#'s Pascal-casing its method-names rather unique, and a tad difficult to get used to at first. What is the reasoning and philosophy behind this? I'm guessing it is because of C# properties. Unlike in Objective-C, where method names can be exactly the same as an instance variables, this is not the case with C#. I would guess one of the goals with properties (as it is with most of the languages that support it) is to make properties truly indistinguishable from variables and methods. So, one can have an "int x" in C#, and the corresponding property becomes X. To ensure that properties and methods are indistinguishable, all method names I'm guessing are also therefore expected to start with an uppercase letter. (This is just my hypothesis based on what I know of C# so far—I'm still learning). I'm very curious to know how this curious guideline came into being (given that it's not something one sees in most other languages where method names are expected to start with a lowercase letter) (EDIT: By Pascal-casing, I mean PascalCase (which is basically camelCase but starting with a capital letter). Method names typically start with a lowercase letter in most languages)

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• Prevent Click Fraud in Advertisement system with PHP and Javascript

  - by CodeDevelopr

  I would like to build an Advertising project with PHP, MySQL, and Javascript. I am talking about something like... Google Adsense BuySellAds.com Any other advertising platform My question is mainly, what do I need to look out for to prevent people cheating the system and any other issues I may encounter? My design concept. An Advertisement is a record in the Database, when a page is loaded, using Javascript, it calls my server which in turn will use a PHP script to query the Database and get a random Advertisement. (It may do kore like get an ad based on demographics or other criteria as well) The PHP script will then return the Advertisement to the server/website that is calling it and show it on the page as an Image that will have a special tracking link. I will need to... Count all impressions (when the Advertisement is shown on the page) Count all clicks on the Advertisement link Count all Unique clicks on the Advertisement link My question is purely on the query and displaying of the Advertisement and nothing to do with the administration side. If there is ever money involved with my Advertisement buying/selling of adspace, then the stats need to be accurate and make sure people can't easily cheat the system. Is tracking IP address really the only way to try to prevent click fraud? I am hoping someone with some experience can clarify I am on the right track? As well as give me any advice, tips, or anything else I should know about doing something like this?

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• How to implement a no-login authentication system

  - by mrwooster

  I am looking to build a very loose authentication system that can track a user and link submitted data/comments to a specific user. The submissions are essentially anonymous, but a user may want to edit his submission/comment at a later date. I want the experience to be as smooth as possible so do not want to ask users to sign up for an account and then login each time. There is no point as their submissions are not in their name and to another user browsing the site, there is no way of linking a submission to a specific user (think anonymous comments on a blog post or pastie). However, the user should have the ability to edit (at least in the short term) the content they have posted. The way I imagine doing this would be to place a unique identifier in a cookie on the users machine. This would enable me to link a submission to a user, and while that cookie remained on the users machine, I would allow them to edit their content. Of course, if the cookie is lost, or the user accesses the site from a different browser, then they would not be able to edit their content, but this is not really an issue, they can always resubmit a new piece of content. Is there a better way of doing this? How can I implement this so that the user can edit their data for the longest possible amount of time.

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• When module calling gets ugly

  - by Pete

  Has this ever happened to you? You've got a suite of well designed, single-responsibility modules, covered by unit tests. In any higher-level function you code, you are (95% of the code) simply taking output from one module and passing it as input to the next. Then, you notice this higher-level function has turned into a 100+ line script with multiple responsibilities. Here is the problem. It is difficult (impossible) to test that script. At least, it seems so. Do you agree? In my current project, all of the bugs came from this script. Further detail: each script represents a unique solution, or algorithm, formed by using different modules in different ways. Question: how can you remedy this situation? Knee-jerk answer: break the script up into single-responsibility modules. Comment on knee-jerk answer: it already is! Best answer I can come up with so far: create higher-level connector objects which "wire" modules together in particular ways (take output from one module, feed it as input to another module). Thus if our script was: FooInput fooIn = new FooInput(1, 2); FooOutput fooOutput = fooModule(fooIn); Double runtimevalue = getsomething(fooOutput.whatever); BarInput barIn = new BarInput( runtimevalue, fooOutput.someOtherValue); BarOutput barOut = barModule(BarIn); It would become with a connector: FooBarConnectionAlgo fooBarConnector = new fooBarConnector(fooModule, barModule); FooInput fooIn = new FooInput(1, 2); BarOutput barOut = fooBarConnector(fooIn); So the advantage is, besides hiding some code and making things clearer, we can test FooBarConnectionAlgo. I'm sure this situation comes up a lot. What do you do?

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• Accenture Foundation Platform for Oracle (AFPO)

  - by Lionel Dubreuil

  The Accenture Foundation Platform for Oracle (AFPO) is a pre-built, tested reference application, common services framework and development accelerator for Oracle’s Fusion Middleware 11g product suite that can help to reduce development time and cost by up to 30 percent. AFPO is a unique accelerator that includes documentation, day one deliverables and quick start virtual machine images, along with access to a skilled team of resources, to reduce risk and cost while improving project quality. It can be delivered all at once or in stages, on-site, hosted, or as a cloud solution. Accenture recently released AFPO v5 for use with their clients. Accenture added significant updates in v5 including Day 1 images & documentation for Webcenter & ADF Mobile that are integrated with 30 other Oracle Middleware products that signifigantly reduced the services aspect to standing these products up. AFPO v5 also features rapid configuration and implementation capabilities for SOA/BPM integrated with Oracle WebCenter Portal, Oracle WebCenter Content, Oracle Business Intelligence, Oracle Identity Management and Oracle ADF Mobile.  AFPO v5 also delivers a starter kit for Oracle SOA Suite which builds upon the integration methodology, leading practices and extended tooling contained within the Oracle Foundation Pack. The combination of the AFPO starter kit and Foundation Pack jump-start and streamline Oracle SOA Suite implementation initiatives, helping to reduce the risk of deploying new technologies and making architectural decisions, so clients can ultimately reduce cost, risk and the time needed for an implementation.  You'll find more information at: Accenture's website:  www.accenture.com/afpo YouTube AFPO Telestration:  http://www.youtube.com/watch?v=_x429DcHEJs Press Release Brochure  Contacts: [email protected] Patrick J Sullivan (Accenture – Global Oracle Technology Lead), [email protected]

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• Are the only types of data "sources" static and dynamic?

  - by blunders

  Thinking that there might be others, but not sure -- but before getting into that, let me explain what I mean by static and dynamic data sources. Static (or datastore) - Meaning that the data's state is non-changing, and if was changed, that would be a new state, and the old data would be considered stateless; meaning it no longer is known to exist, or not exist. Another way of possibly looking at a static data source might be that if read and written back without modification, the checksum for before and after should be exactly the same regardless of the duration of time between the reading and rewriting of the data. Examples: Photos, Files, Database Record, Dynamic (or datastream) - Meaning that the data's state is known to be in flux, and never expected to be the same per input. Example: Live video/audio feed, Stock Market feed, First let me say, the above is a very loose mapping of the concepts, and I'd welcome any feedback. Next, onto the core of the question, that being are these the only two types of data sources. My guess, is that yes, they are -- but that there are hybrid versions of the two. That being, streaming data that has a fixed state. For example, the data being streamed has a checksum given and each unique checksum is known to be a single instance of static data. On the flip side, static data could be chained via say a version control system; when played back, each version might be viewed as a segment of a stream; thing is, the very fact that it can be played back makes the data source static. Another type might be that the data source is being organically discovered, and it's simply unknown what the state is. Questions, feedback, requests -- just comment, thanks!!

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• Tip: Keeping the ADF Mobile PDF Guide up to date

  - by Chris Muir

  This is a little tip for customers using Oracle's ADF Mobile. If you're like me, it's possible you don't rely on the online HTML version of the Mobile Developer's Guide for ADF, but rather download a PDF version of the file to use locally (look to the "PDF" link to the top right of the guide).  For me the convenience of the PDF is it's faster, I can search the whole document easily, I can split read the document across two pages on my home monitor, if I lose my internet connection the document is still available, and it's easy to read on my iPad (especially on long haul flights to the US across the Pacific where there is no internet connection!). The trigger point for me to download the Oracle PDF documentation has always been on a new point release of JDeveloper.  However in the case of ADF Mobile, as an extension to JDeveloper it is releasing at a much faster and independent schedule to JDeveloper and this includes updates to the documentation. As such the 11.1.2.4.0 ADF Mobile PDF guide you have locally might be out of date and you should take the opportunity to download the latest version.  This is also particularly important for ADF Mobile as not only are many new features being added for each release and included in the new documentation, but the guide is under rapid improvement to clarify much of what has been written to date.  Our documentation teams are super responsive to suggestions on how to improve the guides and this often shows per point release. How do you tell you've the latest guide? Look to the document part number which right now is "E24475-03".  This is a unique ID per release for the document, the first part being the document number, and the part after the dash the revision number.  If the website document number has a higher revision number, time to download a new up to date PDF. One last thing to share, you can follow the ADF Mobile guide document manager Brian Duffield on Twitter to keep abreast of updates. Image courtesy of Stuart Miles / FreeDigitalPhotos.net

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