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• boost::this_thread::disable_interruption usage confusion

  - by Evgenii

  boost/thread/pthread/shared_mutex.hpp contains this code: ... #include <boost/thread/detail/thread_interruption.hpp> ... class shared_mutex { ... void lock_shared() { boost::this_thread::disable_interruption do_not_disturb; boost::mutex::scoped_lock lk(state_change); while(state.exclusive || state.exclusive_waiting_blocked) { shared_cond.wait(lk); } ++state.shared_count; } ... }; but boost/thread/detail/thread_interruption.hpp does not contain implementation of disable_interruption, only the prototype. in boost_1_42_0/libs/thread/src/pthread we don't have the implementation too how does it work!???

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• embedded dev. question - how to break free from a faulty serial port opening?

  - by user347266

  Under WindowsCE, C++ project, I'm trying to work with devices connected via both "real" serial ports and/or serial-to-usb wrappers ("virtual" serial ports); my problem is - when I try to open the port, if something goes wrong, the function never returns and the system goes into some non-responsive state and has to be eventually rebooted. I need to open the ports from the main thread. The question is - how can I make it happen in a controlled way?? this is the opening code snippet: std::ostringstream device_name; device_name << "\\.\COM" << port; m_port = ::CreateFile(device_name.str().c_str(), GENERIC_READ | GENERIC_WRITE, 0, // exclusive access NULL, // no security OPEN_EXISTING, FILE_FLAG_OVERLAPPED, // overlapped I/O NULL); // null template any suggestions would be greatly appreciated thanks!

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• How to permanently prevent specific part of a file from being committed in git?

  - by boutta

  I have cloned a remote SVN repository with git-svn. I have modified a pom.xml file in this cloned repo in a way that the code compiles. This setup is exclusive for me. Thus I don't want to push the changes back on the remote repo. Is there a way to prevent this (partial) change of a file from being committed into the repo? I'm aware of the fact, that I could use a personal branch, but this would mean certain merging overhead. Are there other ways? I've looked into this question and this one, but they are for rather temporal changes. Update: I'm also aware of the .gitignore possibilities, but this would mean to exclude the file completely.

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• Javascript / Jquery Tree Travesal question

  - by Copper

  Suppose I have the following <ul> <li>Item 1</li> <li>Item 2 <ul> <li>Sub Item</li> </ul> </li> <li>Item 3</li> </ul> This list is auto-generated by some other code (so adding exclusive id's/class' is out of the question. Suppose I have some jquery code that states that if I mouseover an li, it gets a background color. However, if I mouseover the "Sub Item" list item, "Item 2" will be highlighted as well. How can I make it so that if the user mouses over "Sub Item" it only puts a background color on that and not on "Item 2" as well?

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• Jenkins to not allow the same job to run concurrently on the same node?

  - by Marek Gimza

  I have 4 nodes and 2 jobs. Any node can run 2 jobs concurrently and any job can be executed concurrently. I want to be able to restrict running the same job concurrently on the same machine. For example: Jobs: J1 and J2 nodes: N1,N2,N3 and N4 I can run J1 and J2 on the same node at the same time. I can run J1 on N1 and N3 at the same time. BUT I do not want to run J1 and another build of J1 on the same node at the same time. I have tried "Locks and Latches", "Jenkins Exclusive Execution", "Exclusion Plugin" plugins, and these will work well when trying to coordinate different jobs. But my case is trying to manage different build-instances of the same job.

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• What do I have to do to get Firefox to display the add-on bar and XUL simultaneously?

  - by SmileAndNod

  On MDN, the phrase "Add-on Manager-enabled XUL" is introduced. By dragging a XPI file containing an add-on and dropping it onto a FireFox window, the addon's widgets will be installed in FireFox's add-on bar. By specifying the commandline option "-app application.ini" at the root of a chrome-structured directory, Firefox will display XUL using chrome:// protocol. Since MDN makes me think that the two are not mutually exclusive, my question is, "What do I have to do to get Firefox 8.0.1 to display the add-on bar and XUL simultaneously?"

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• Jquery UI Dialog Empty On Auto-Open

  - by user1019588

  I am having a somewhat strange error with my jquery dialog. When I have it autoopen, the dialog box is completely empty. If I exit out of the dialog and then reopen (through the standard dialog open event) the content appears. The jquery setup: $("#content_locker").dialog({ autoOpen: true, modal: true, height: 600, width: 800 }); Here you can see the webpage that I am working on (it is a link-shortening service). The dialog div starts on line 148 of the source: <div id="content_locker" title="Exclusive Content"> You will see that the dialog is empty. If you exit out and click on the unlock button, the proper html is there. Any ideas?

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• db2 stored procedure. locking / releasing table

  I use a stored procedure to read/update/return certain fields in a journaled as400 table. I want to lock the table first and then release it after the record is updated. I tried tons of stuff, but releasing table is a problem. SP defines and opens cursor, selects record into variables and updates the record. I tried 'begin atomic', then lock table in exclusive mode and then when it's over, it doesn't release. Is there any statement i missing or do i need to compile it with certain parameters? I use a simple create procedure statement in AS400 navigator's sql panel to compile it. Will very appreciate some help with example. Thanks.

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• Mysql with innodb and serializable transaction does not (always) lock rows

  - by Tobias G.

  Hello, I have a transaction with a SELECT and possible INSERT. For concurrency reasons, I added FOR UPDATE to the SELECT. To prevent phantom rows, I'm using the SERIALIZABLE transaction isolation level. This all works fine when there are any rows in the table, but not if the table is empty. When the table is empty, the SELECT FOR UPDATE does not do any (exclusive) locking and a concurrent thread/process can issue the same SELECT FOR UPDATE without being locked. CREATE TABLE t ( id INT NOT NULL AUTO_INCREMENT PRIMARY KEY, display_order INT ) ENGINE = InnoDB; SET TRANSACTION ISOLATION LEVEL SERIALIZABLE; START TRANSACTION; SELECT COALESCE(MAX(display_order), 0) + 1 from t FOR UPDATE; .. This concept works as expected with SQL Server, but not with MySQL. Any ideas on what I'm doing wrong? EDIT Adding an index on display_order does not change the behavior.

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• Linq - Grouping where items fall in multiple groups?

  - by PirateKitten

  Is it possible using Linq to create a group where items fall into more than one group? Using the following trivial example: public class Data { public string ID; public int From; public int To; } And this list: List<Data> data = new List<Data>() { new Data() { ID = "A", From = 1, To = 3 }, // Call this A new Data() { ID = "B", From = 1, To = 2 }, // Call this B new Data() { ID = "C", From = 2, To = 3 } // Call this C }; I'd like to group by each possible integer in the ranges From and To (though instead of finding the min + max I could supply the query with the range I want, for example 1 to 3), and in each group would be a reference to the Data instance where the grouping int fits in its range. Hard to explain, easier to show each group and the instances I'd expect in each: [Group 1] 1 - A, B [Group 2] 2 - A, B, C [Group 3] 3 - A, C Is this possible? Or must groups be mutually exclusive?

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• Going… Going.. Going.. GONE! The OPNX ScoreBoard

  - by Kristin Rose

  Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} It was the bottom of the 9th, the bases were loaded and Oracle PartnerNetwork knocked it out of the park! Partners really scored big this year with the first ever Oracle PartnerNetwork Exchange Program at OpenWorld, and it was a win for the ages! With so much to take part in and experience, we wanted to offer you a quick play-by-play of the week in case you couldn’t make every event. Up to bat first was our Global Keynote with Oracle Senior Vice President, Judson Althoff. The Keynote Hall was packed with a full house, and the crowd went wild after the latest Cloud announcements were made. The OPN Exchange General Sessions followed shortly after, and covered topics like Technology, Applications and Engineered Systems – a real game changer for our partners and customers alike! Work hard, play hard has always been our motto, as partners mixed and mingled during Sunday’s AfterDark Reception, all while Macy Gray sung her greatest hits below. But that was only Game Day #1. The rest of the week included: 50+ Partner exclusive sessions, OPN’s Test Fest, the bright and early 5K Partner Fun Run, the Social Media Rally Station at the OPN Lounge, Java Embedded @JavaOne and last but not least, our Ice Cream Social… If only there were some peanuts to go with! Watch below as Judson Althoff recap’s his experience at OPN Exchange this year, and get’s ready for next season! We’re Outta Here! The OPN Communications Team

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• HPC Server Dynamic Job Scheduling: when jobs spawn jobs

  - by JoshReuben

  HPC Job Types HPC has 3 types of jobs http://technet.microsoft.com/en-us/library/cc972750(v=ws.10).aspx · Task Flow – vanilla sequence · Parametric Sweep – concurrently run multiple instances of the same program, each with a different work unit input · MPI – message passing between master & slave tasks But when you try go outside the box – job tasks that spawn jobs, blocking the parent task – you run the risk of resource starvation, deadlocks, and recursive, non-converging or exponential blow-up. The solution to this is to write some performance monitoring and job scheduling code. You can do this in 2 ways: manually control scheduling - allocate/ de-allocate resources, change job priorities, pause & resume tasks , restrict long running tasks to specific compute clusters Semi-automatically - set threshold params for scheduling. How – Control Job Scheduling In order to manage the tasks and resources that are associated with a job, you will need to access the ISchedulerJob interface - http://msdn.microsoft.com/en-us/library/microsoft.hpc.scheduler.ischedulerjob_members(v=vs.85).aspx This really allows you to control how a job is run – you can access & tweak the following features: max / min resource values whether job resources can grow / shrink, and whether jobs can be pre-empted, whether the job is exclusive per node the creator process id & the job pool timestamp of job creation & completion job priority, hold time & run time limit Re-queue count Job progress Max/ min Number of cores, nodes, sockets, RAM Dynamic task list – can add / cancel jobs on the fly Job counters When – poll perf counters Tweaking the job scheduler should be done on the basis of resource utilization according to PerfMon counters – HPC exposes 2 Perf objects: Compute Clusters, Compute Nodes http://technet.microsoft.com/en-us/library/cc720058(v=ws.10).aspx You can monitor running jobs according to dynamic thresholds – use your own discretion: Percentage processor time Number of running jobs Number of running tasks Total number of processors Number of processors in use Number of processors idle Number of serial tasks Number of parallel tasks Design Your algorithms correctly Finally , don’t assume you have unlimited compute resources in your cluster – design your algorithms with the following factors in mind: · Branching factor - http://en.wikipedia.org/wiki/Branching_factor - dynamically optimize the number of children per node · cutoffs to prevent explosions - http://en.wikipedia.org/wiki/Limit_of_a_sequence - not all functions converge after n attempts. You also need a threshold of good enough, diminishing returns · heuristic shortcuts - http://en.wikipedia.org/wiki/Heuristic - sometimes an exhaustive search is impractical and short cuts are suitable · Pruning http://en.wikipedia.org/wiki/Pruning_(algorithm) – remove / de-prioritize unnecessary tree branches · avoid local minima / maxima - http://en.wikipedia.org/wiki/Local_minima - sometimes an algorithm cant converge because it gets stuck in a local saddle – try simulated annealing, hill climbing or genetic algorithms to get out of these ruts   watch out for rounding errors – http://en.wikipedia.org/wiki/Round-off_error - multiple iterations can in parallel can quickly amplify & blow up your algo ! Use an epsilon, avoid floating point errors,  truncations, approximations Happy Coding !

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• OPN Exchange @ OpenWorld – Don’t Forget…

  - by Kristin Rose

  Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";} Mark your calendar because we’re less than a week away from kicking off our first ever Oracle PartnerNetwork Exchange @ OpenWorld program, and do we have a lot in store for you!  So don’t forget to attend these great partner events! Sunday, 9/30: The Global Partner Keynote with Judson Althoff and other senior executives @ 1:00pm OPN Exchange General Sessions  to discuss the overview of each OPN Exchange track including, Cloud, Engineered Systems, Industries, Technology and Applications @ 3:30pm The exclusive OPN Exchange AfterDark Reception complete with the smooth sounds of Macy Gray @ 7:30pm. Don’t worry, there is plenty to come after Sunday! Be sure to take part in all the exciting activity taking place during the week, including: Over 40 + OPN Exchange Sessions taking place at the Marriott Marquis throughout the week “Test Fest” exams for OPN Specialist Certifications,  taking place throughout the week The 5k Partner Fun Run- Meet at the W Hotel lobby on Monday 10/1 at 6 a.m. PT – No registration necessary! Led by Judson Althoff, SVP of WWA&C. Social Media Rally Station- Join us in the OPN Lounge on Monday to become social savvy and leverage social media tools for your business Ice Cream Social- Monday October 1st, from 3-5:30 p.m. in the OPN Lounge. Hosted by Oracle Advanced Customer Support Services. Endless Networking Opportunities at the OPN Lounge, the Howard Street Tent for lunch, the ‘It’s a Wrap Reception’, and much more! We can’t wait to see you there! The OPN Communications Team

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• Nokia vs. The World

  - by Michael B. McLaughlin

  I’m looking forward to the launch of the Nokia Lumia 920. Why? Well, it stacks up better than the competition for one thing. Then there’s also that security problem that certain other phones have. Mostly, though, it’s because I love my Lumia 900 and the 920, with Windows Phone 8, will be even better. Before I got my Lumia 900, I just took it as given that smart phone cameras couldn’t be good. The Lumia taught me that smart phone cameras can be good if the manufacturer treats them as an important component worth spending time and money on (rather than some thing that consumers expect such that they’d better throw one in). I’m extremely pleased with the quality of pictures that my Lumia 900 gives me as well as the range of settings it provides (you can delve in to tell it a film speed, an f-stop, and a whole range of other settings). And the image stabilization features in the Lumia 920 deliver far better results than the others. Nokia has had great maps for a long time and they continue to improve. Even better, they made a deal that puts many of their excellent maps into Windows Phone 8 itself. There are still Nokia-exclusive features such as Nokia City Lens, of course. But by giving the core OS a great set of fundamental map data and technologies, they help ensure that customers know that buying a Windows Phone 8 will give them a great map experience no matter who made the phone. I’ll be getting a 920, myself, but the HTC and Samsung devices that have been announced have some compelling features, too, and it’s great to know that people who buy one of these won’t need to worry about where their maps might lead them. I’m looking forward to the NFC capabilities and Qi wireless charging my Lumia 920 will have. With the availability of DirectX and C++ programming on Windows Phone 8, I’m also excited about all the great games that will be added to the Windows Phone environment. I love my Xbox Phone. I love my Office phone. I love my Facebook phone. I love my GPS phone. I love my camera phone. I love my SkyDrive phone. In short, I love my Windows Phone!

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• Victor Grazi, Java Champion!

  - by Tori Wieldt

  Congratulations to Victor Grazi, who has been made a Java Champion! He was nominated by his peers and selected as a Java Champion for his experience as a developer, and his work in the Java and Open Source communities. Grazi is a Java evangelist and serves on the Executive Committee of the Java Community Process, representing Credit Suisse - the first non-technology vendor on the JCP. He also arranges the NY Java SIG meetings at Credit Suisse's New York campus each month, and he says it has been a valuable networking opportunity. He also is the spec lead for JSR 354, the Java Money and Currency API. Grazi has been building real time financial systems in Java since JDK version 1.02! In 1996, the internet was just starting to happen, Grazi started a dot com called Supermarkets to Go, that provided an on-line shopping presence to supermarkets and grocers. Grazi wrote most of the code, which was a great opportunity for him to learn Java and UI development, as well as database management. Next, he went to work at Bank of NY building a trading system. He studied for Java certification, and he noted that getting his certification was a game changer because it helped him started to learn the nuances of the Java language. He has held other development positions, "You may have noticed that you don't get as much junk mail from Citibank as you used to - that is thanks to one of my projects!" he told us. Grazi joined Credit Suisse in 2005 and is currently Vice President on the central architecture team. Grazi is proud of his open source project, Java Concurrent Animated, a series of animations that visualize the functionality of the components in the java.util.concurrent library. "It has afforded me the opportunity to speak around the globe" and because of it, has discovered that he really enjoys doing public presentations. He is a fine addition to the Java Champions program. The Java Champions are an exclusive group of passionate Java technology and community leaders who are community-nominated and selected under a project sponsored by Oracle. Nominees are named and selected through a peer review process. Java Champions get the opportunity to provide feedback, ideas, and direction that will help Oracle grow the Java Platform. This interchange may be in the form of technical discussions and/or community-building activities with Oracle's Java Development and Developer Program teams.

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• Oracle 5th Annual Maintenance Summit - Orlando March 22-23, 2011

  - by stephen.slade(at)oracle.com

  It's not too late to register today or tomorrow for this exclusive 'Maintenance Professionals Only" event.  In 4 tracks, 27 customer and partner speakers will present case studies and success stories in these 'no-sell zone' sessions. The take-aways will be worth attending!This "2 in 1" event combines a Customer Showcase featuring Orlando Utilities Commission (OUC) and Maintenance Summit.  OUC - the local municipal utility providing residential, commercial, and industrial customers with clean, reliable, and affordable electric and water services - will open the event with their CIO as keynote speaker, and host tours of their fleet, facility, and power generation operations. Recognized as a green leader, OUC has been the most reliable power provider in Florida the past 9 years due, in large part, to the operational efficiencies of its plant and asset maintenance systems. This Summit will feature breakout session tracks for EBS, JD Edwards, PeopleSoft and Sustainability. Highlights include over 12 Oracle solution demo stations, over 25 interactive breakout sessions, pool-side networking reception with live band, partner exhibit pavilion and special appearance by Sean D. Tucker, Team Oracle Stunt-Pilot!  Dates:                   March 22-23, 2011 Location:             Orlando World Center Marriott, Orlando, Florida Evite:                     http://www.oracle.com/us/dm/h2fy11/65971-nafm10019768mpp191c003-oem-304204.html Highlights:          Keynotes, Oracle Expert Demo Stations, Interactive Breakout Sessions, Networking Reception, Partner Pavilion, Speakers Tracks:                 EBS, JDE, PSFT, Sustainability Tours:                  Orlando Utility Operations, Fleet and Facility Oracle Demo Stations:  Agile, AutoVue, Primavera, MOC/SSDM, Utilities, PIM, PDQ, UCM, On Demand, Business Accelerators, Facilities Work Management, EBS Enterprise Asset Management, PeopleSoft Maintenance Management, Technology, Hardware/Sun. Partner-Sponsors:   Viziya, Global PTM, MiPro, Asset Management Solutions, Venutureforth, Impac Services, EAM Master, LLC, Meridium

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• Why lock statements don't scale

  - by Alex.Davies

  We are going to have to stop using lock statements one day. Just like we had to stop using goto statements. The problem is similar, they're pretty easy to follow in small programs, but code with locks isn't composable. That means that small pieces of program that work in isolation can't necessarily be put together and work together. Of course actors scale fine :) Why lock statements don't scale as software gets bigger Deadlocks. You have a program with lots of threads picking up lots of locks. You already know that if two of your threads both try to pick up a lock that the other already has, they will deadlock. Your program will come to a grinding halt, and there will be fire and brimstone. "Easy!" you say, "Just make sure all the threads pick up the locks in the same order." Yes, that works. But you've broken composability. Now, to add a new lock to your code, you have to consider all the other locks already in your code and check that they are taken in the right order. Algorithm buffs will have noticed this approach means it takes quadratic time to write a program. That's bad. Why lock statements don't scale as hardware gets bigger Memory bus contention There's another headache, one that most programmers don't usually need to think about, but is going to bite us in a big way in a few years. Locking needs exclusive use of the entire system's memory bus while taking out the lock. That's not too bad for a single or dual-core system, but already for quad-core systems it's a pretty large overhead. Have a look at this blog about the .NET 4 ThreadPool for some numbers and a weird analogy (see the author's comment). Not too bad yet, but I'm scared my 1000 core machine of the future is going to go slower than my machine today! I don't know the answer to this problem yet. Maybe some kind of per-core work queue system with hierarchical work stealing. Definitely hardware support. But what I do know is that using locks specifically prevents any solution to this. We should be abstracting our code away from the details of locks as soon as possible, so we can swap in whatever solution arrives when it does. NAct uses locks at the moment. But my advice is that you code using actors (which do scale well as software gets bigger). And when there's a better way of implementing actors that'll scale well as hardware gets bigger, only NAct needs to work out how to use it, and your program will go fast on it's own.

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• Oracle 'In Touch' PartnerCast - July 1, 2014

  - by Cinzia Mascanzoni

  27 May 2014 'In Touch' Webcast for Oracle EMEA Partners Invitation Stay Connected Oracle Media Network   OPN on PartnerCast   Oracle 'In Touch' PartnerCast (July 1, 2014)Be prepared for a year of growth Register Now! Dear partner, We would like to invite you to join David Callaghan, Senior Vice President Oracle EMEA Alliances and Channels, and his studio guests for the next broadcast of the Oracle ‘In Touch’ PartnerCast on Tuesday 1st July 2014 from 10:30am UK / 11:30am CET. In this cast, David’s studio guests and his regional reporters will be looking at your priorities as EMEA partners and how best to grow with Oracle. We also look forward to the broadcast covering topics on the following: Highlights of FY14 Strategic themes for FY15 HCM, CRM and ERP Oracle on Oracle Exclusive for ‘In Touch’ David Callaghan questions Rich Geraffo, Senior Vice President, Global Alliances & Channels, on how the FY15 partner Global kick off relates to EMEA. Plus David provides your chance to hear from some of the newly appointed Worldwide A&C Leadership team as he discusses with Bruce Chumley VP Oracle Channel Distribution Sales & Troy Richardson VP Oracle Strategic Alliances; their core focus and strategy of growth and what they intend on bringing to the table in their new role. Register Now! With lots of studio guests joining David, why not get in touch on Twitter using the hashtag #OracleInTouch or by emailing [email protected] to get your questions featured in the cast! To find out more information and to watch previous episodes on-demand, please visit our webpage here. Best regards, Oracle EMEA Alliances & Channels Oracle 'In Touch' PartnerCast: be prepared for a year of growth July 01, 2014 10:30am UK / 11:30am CET Duration: 45 mins. Host David Callaghan Senior VP Oracle EMEA Alliances & Channels Studio Guests Alistair Hopkins VP Sales & Strategy, Technology Solutions, Oracle EMEA Alliances & Channels More to be announced shortly Features Contributors Rich Geraffo Senior Vice President, Oracle Worldwide Alliances & Channels Bruce Chumley Vice President Channel Distribution Sales, Oracle WW Alliances & Channels Steve Biondi VP Channel Distribution Sales, Oracle WW Alliances & Channels Regional Reporters Silvia Kaske VP Oracle A&C WCE North Will O'Brien VP Oracle A&C UK/IE Eric Fontaine VP Oracle A&C WCE South Janusz Naklicki VP Oracle A&C ECEMEA

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• UPK Breakfast Event: "Getting It Done Right" - Independence, Ohio - November 8th

  - by Karen Rihs

  Join us for a UPK “Getting It Done Right” Breakfast Briefing Come for Breakfast. Leave Full of Knowledge. Join Oracle and Synaptis for a breakfast briefing event before you begin your day, and leave full with knowledge on how to reduce risk and increase user productivity. Oracle’s User Productivity Kit (UPK) can provide your organization with a single tool to provide learning and best practices for each area of the business and help ensure you’re “Getting It Done Right.”Learn from Deb Brown, Senior Solutions Consultant, Oracle, as she shows the UPK tool that can save project teams thousands of hours through automation as well as provide greater visibility into application rollouts and business processes. Also hear from a UPK Customer as they share their company’s success with Oracle UPK.  Learn how UPK insures rapid user adoption; significantly lowers development, system testing, and user enablement time and costs; and mitigates project risk. Finally, Pat Tierney, Oracle Practice Director - Synaptis and Jordan Collard, VP Sales - Synaptis, will conclude with an outline of their success as a UPK implementation partner. Register Now Thursday,November 8, 20127:30 a.m. – 10:00 a.m.Embassy Suites Cleveland – Rockside5800 Rockside Woods BoulevardIndependence, OH 44131Directions Agenda 7:30 a.m. Event Arrival / Registration. Breakfast Served. 8:00 a.m. Deb Brown, Senior Solutions Consultant, Oracle Oracle UPK – A Closer Look at Getting It Done, Right. Ensure End User Adoption. 8:40 a.m. UPK Customer Success Story 9:30 a.m. Pat Tierney, Oracle Practice Director - Synaptis and Jordan Collard, VP Sales - Synaptis – Implementation Partner - Using Oracle UPK Before, During and After Application Rollouts 9:50 a.m. Wrap Up   Don’t miss this special Breakfast Briefing and get a jump start on Oracle UPK technology. Please call 1.800.820.5592 ext. 11030 or Click here to RSVP for this exclusive event! Sponsored bySynaptisSynaptis is an Oracle Gold Partner, providing UPK training, implementation, content creation and post go-live support for organizations since 1999.     If you are an employee or official of a government organization, please click here for important ethics information regarding this event.  

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• Internal Mutation of Persistent Data Structures

  - by Greg Ros

  To clarify, when I mean use the terms persistent and immutable on a data structure, I mean that: The state of the data structure remains unchanged for its lifetime. It always holds the same data, and the same operations always produce the same results. The data structure allows Add, Remove, and similar methods that return new objects of its kind, modified as instructed, that may or may not share some of the data of the original object. However, while a data structure may seem to the user as persistent, it may do other things under the hood. To be sure, all data structures are, internally, at least somewhere, based on mutable storage. If I were to base a persistent vector on an array, and copy it whenever Add is invoked, it would still be persistent, as long as I modify only locally created arrays. However, sometimes, you can greatly increase performance by mutating a data structure under the hood. In more, say, insidious, dangerous, and destructive ways. Ways that might leave the abstraction untouched, not letting the user know anything has changed about the data structure, but being critical in the implementation level. For example, let's say that we have a class called ArrayVector implemented using an array. Whenever you invoke Add, you get a ArrayVector build on top of a newly allocated array that has an additional item. A sequence of such updates will involve n array copies and allocations. Here is an illustration: However, let's say we implement a lazy mechanism that stores all sorts of updates -- such as Add, Set, and others in a queue. In this case, each update requires constant time (adding an item to a queue), and no array allocation is involved. When a user tries to get an item in the array, all the queued modifications are applied under the hood, requiring a single array allocation and copy (since we know exactly what data the final array will hold, and how big it will be). Future get operations will be performed on an empty cache, so they will take a single operation. But in order to implement this, we need to 'switch' or mutate the internal array to the new one, and empty the cache -- a very dangerous action. However, considering that in many circumstances (most updates are going to occur in sequence, after all), this can save a lot of time and memory, it might be worth it -- you will need to ensure exclusive access to the internal state, of course. This isn't a question about the efficacy of such a data structure. It's a more general question. Is it ever acceptable to mutate the internal state of a supposedly persistent or immutable object in destructive and dangerous ways? Does performance justify it? Would you still be able to call it immutable? Oh, and could you implement this sort of laziness without mutating the data structure in the specified fashion?

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• The environment that is uniquely Oracle by Phillip Yi

  - by Nadiya

  Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 In the past month, I have been given the exclusive opportunity to hire a Legal graduate/intern for Oracle’s in-house Legal Counsel based here in North Ryde, Sydney. Whilst talking to various applicants, I am asked the same, broad question – what are we looking for? Time and time I have spoken about targeting the best, or targeting the best fit. I am an advocate of the latter, hence when approaching this question I answer very simply – ‘we are looking for the individual, that will fit into the culture and environment that is uniquely Oracle’. So, what is the environment/culture like here at Oracle? What makes Oracle so unique and a great place to work, especially as a graduate? Much like our business model, we are forward and innovative thinkers – we are not afraid to try new things, whether it is a success or failure. We are all highly driven, motivated and successful individuals – Oracle is a firm believer that in order to be driven, motivated and successful, you need to be surrounded by like minded people. And last, we are all autonomous and independent, self starters – at Oracle you are treated as an adult. We are not in the business of continually micro managing, nor constantly spoon feeding or holding your hand. Oracle has an amazing support, resource and training network – if you need support, extra training or resources it is there for your taking. And of course, if you do it on your own accord, you will learn it much quicker. For those reasons, Oracle is unique in its environment – we ensure and set up everyone for success. With such a great working environment/culture, why wouldn’t you choose Oracle? /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-family:"Calibri","sans-serif"; mso-ascii- mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi- mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;}

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• Happy New Year! Upcoming Events in January 2011

  - by mandy.ho

  Oracle Database kicks off the New Year at the following events during the month of January. Hope to see you there and please send in your pictures and feedback! Jan 20, 2011 - San Francisco, CA LinkShare Symposium West 2011 Oracle is a proud Gold Sponsor at the LinkShare Symposium West 2011 January 20 in San Francisco, California. Year after year LinkShare has been bringing their network the opportunity to come to life. At the LinkShare Symposium online performance marketing leaders meet to optimize face-to-face during a full day of networking. Learn more by attending Oracle Breakout Session, "Omni - Channel Retailing, What is possible now?" on Thursday, January 20, 11:15 a.m. - 12:00 noon, Grand Ballroom. http://eventreg.oracle.com/webapps/events/ns/EventsDetail.jsp?p_eventId=128306&src=6954634&src=6954634&Act=397 Jan 24, 2011 - Cincinnati, OH Greater Cincinnati Oracle User Group Meeting "Tom Kyte Day" - Featuring a day of sessions presented by Senior Technical Architect, Tom Kyte. Sessions include "Top 10, no 11, new features of Oracle Database 11g Release 2" and "What do I really need to know when upgrading", plus more. http://www.gcoug.org/ Jan 25, 2011 - Vancouver, British Columbia Oracle Security Solutions Forum Featuring a Special Keynote Presentation from Tom Kyte - Complete Database Security Join us at this half-day event; Oracle Database Security Solutions: Complete Information Security. Learn how Oracle Database Security solutions help you: • Prevent external threats like SQL injection attacks from reaching your databases • Transparently encrypt application data without application changes • Prevent privileged database users and administrators from accessing data • Use native database auditing to monitor and report on database activity • Mask production data for safe use in nonproduction environments http://eventreg.oracle.com/webapps/events/ns/EventsDetail.jsp?p_eventId=126974&src=6958351&src=6958351&Act=97 Jan 26, 2011 - Halifax, Nova Scotia Oracle Database Security Technology Day Exclusive Seminar on Complete Information Security with Oracle Database 11g The amount of digital data within organizations is growing at unprecedented rates, as is the value of that data and the challenges of safeguarding it. Yet most IT security programs fail to address database security--specifically, insecure applications and privileged users. So how can you protect your mission-critical information? Avoid risky third-party solutions? Defend against security breaches and compliance violations? And resist costly new infrastructure investments? Join us at this half-day seminar, Oracle Database Security Solutions: Complete Information Security, to find out http://eventreg.oracle.com/webapps/events/ns/EventsDetail.jsp?p_eventId=126269&src=6958351&src=6958351&Act=93

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• Why do some user agents have spam urls in them?

  - by Erx_VB.NExT.Coder

  If you go to (say) the last 100 entries (visits) to the botsvsbrowsers.com website (exact link, feel free to take a look: http://www.botsvsbrowsers.com/recent/listings/index.html ), you'd notice that almost every User Agent that has the keywords "Opera" and "Presto" inside them, will almost certainly have a web link (URL/Web Address) inside it, and it won't just be a normal web address, but a HTML anchor tag/link to that address. Why is this so, I could not even find a single discussion about it on the internet, nowhere, I tried varying my search terms many times. If the user agent contains the words "Opera" and "Presto" it doesnt mean it will have this weblink, but it means there is about an 80% change that it will. A typical anchor tag/link inside a user agent will look like this: Mozilla/4.0 <a href="http://osis-uk.co.uk/disabled-equipment">disability equipment</a> (Windows NT 5.1; U; en) Presto/2.10.229 Version/11.60 If you check it out at the website, http://www.botsvsbrowsers.com/recent/listings/index.html you will notice that the back and forward arrows are in there unescaped format. This isn't just true for botsvsbrowsers, but several other user agent listing sites. I'm really confused and feel line I'm in a room full of 10,000 people and am the only one seeing this ghost :). If I'm doing statistical analysis, should I include or exclude this type of user agent from my listing (ie: are these just normal users who've set their user agents to attempt to drive some traffic to their sites as they browser the web), or is there something else going on? The fact that it is so consistent in terms of its format leads me to believe that it is an automated process (the setting or alteration of the user agent) so I cannot decide or understand the process by which this change is made (I know how to change a user agent), but unsure which program or facility is doing this, especially since it is exclusive to Opera (Presto) user agents that are beyond I think an 8 or 9 point something browser version. I've run some statistical tests, parsing entries from all over the place, writing custom programs, to get a better understanding of this. Keep in mind that I see normal URL's in user agents infrequently, they are just text such as +http://www.someSite.com appended to a user agent normally, especially if its a crawler or bot it provided its service URL, this is normal and isnt done with an embedded link (A HREF=) etc, so I'm not talking about "those".

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• Game Review: God of Light

  Luckily I came across this title at a very early stage. If I remember correctly, I took notice of God of Light on Twitter right on the weekend it has been published on the Play Store. "Sit back and become immersed into the world of God of Light, the game that rethinks the physics puzzle genre with its unique environment exploration gameplay, amazing graphics and exclusive soundtrack created by electronic music icon UNKLE. Join cute game mascot, Shiny, on his way to saving the universe from the impending darkness. Play through a variety of exciting game worlds and dozens of levels with mind-blowing puzzles. Your goal is to explore game levels, seek for game objects that reflect, split, combine, paint, bend and teleport rays of light energy to activate the Sources of Life and bring light back to the universe." Mastering the various reflection items in God of Light is very easy to learn and new elements are introduced during the game. Amazing puzzle game Here's the initial review I posted on the Play Store: "Great change in puzzles Fantastic and refreshing concept of puzzle solving. The effects and the music match very well, putting the player in the right mood to game. Get enlightened and grow your skills until you are a true God of Light." And it remains true, even after completing the first realm completely. Similar to Quell it took me only a couple of hours during the evening to complete all levels in the available three realms, unfortunately. God of Light currently consists of 75 levels, well it's 25 in each realm to be precise, and the challenges are increasing. Compared to the iOS version from the AppStore, God of Light is available for free on Android - at least the first realm (25 levels). Unlocking the other two remaining realms is done through an in-app purchase. The visual appearance, the sound effects and the background music provided by UNKLE makes God of Light a superb package for any puzzle gamer. Whether it is simply reflecting light over multiple mirrors, or later on bending the rays of light with black holes, or using prisms to either split, enforce, or colourise your beam, God of Light is great fun and offers a good amount of joy. Check out the following screenshots for some impressions. God of Light: Astonishing graphics and visual appeal throughout the game God of Light - Introduction to the game during the first levels. New light items are introduced at each stage during the game play God of Light: Increasing complexity and puzzle fun Hopefully, Playmous is going to provide more astonishing looking realms and interesting gimmicks in future versions. Play Store: God of Light Also, check out the latest game updates on the official web site of Playmous

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• 25 reasons to attend JavaOne 2012

  - by arungupta

  17th JavaOne is just around the corner, less than 3 weeks away! If you are still thinking about registering for the conference, here are my top 25 reasons to attend the conference: Biggest gathering of Java geeks in the world Latest and greatest content with 475 technical sessions/Birds of Feathers/Hands-on labs sessions (about 20% more from last year) Reduced number of keynotes to accommodate room for more technical content No product pitches, exclusive focus on technology (I can tell you that from my experience as a track lead) Sessions are divided in different in-depth technical tracks to focus on Java technology that most interests you Reruns of several popular sessions Experts and Practitioners-led HOLs and tutorials Rock star speakers, panelists, faculties, and instructors. Meet several Java Champions and JUG leaders from all around the world Engage with speakers and discuss with fellow developers in a casual setting with lots of networking space A complete conference dedicated for Java Embedded Extensive and fast-paced hands-on University Sessions on Sunday, learn while you are at the conference. You can register for Java University only or attend with the conference. Dukes Choice Awards recognize and celebrate the most innovative usage of the Java platform DEMOgrounds and Exhibition Hall provide extensive opportunities for networking and engagement with the biggest names in Java (dedicated hours on each day as well) Dedicated day for Java User Groups and Communities (GlassFish Community Event and NetBeans Community Day) Multiple registration packages to meet your needs Pay for 4 full conference passes and get a fifth one free Students and Bloggers get a free pass Geek Bike Ride with fellow speakers and attendees in a casual setting Greenest conference on the plane Enjoy different cuisines in the San Francisco city, take a trip to Alcatraz or Napa Valley or go running on the crooked street ;-) There are tons of tourist opportunities in/around San Francisco. Tons of parties during the conference, in the evening, late night, and early mornings. Don't forget Thirsty Bear Party! Pearl Jam and Kings of Leon at Appreciation Party Oracle Music Festival at Yerba Buena Gardens Grab the bragging rights "I have attended JavaOne"! Learn a new skill, build new connections, conceive a new idea and push the boundaries of Java in the most important educational and networking event of the year for Java developers and enthusiasts. With so much geekgasm going on during the 5 days of JavaOne, is there a reason for you to wait ? Register for the conference now! Grab your buttons, banners, and other collateral at JavaOne Toolkit. You can also send an email to [email protected]. And reach out to us using different social media channels ... As a 13 year veteran of the conference, I can tell this is some thing every Java developer must experience! I will be there, will you ?

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