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  • DON'T MISS THE ORACLE LINUX GENERAL SESSION @ORACLE OPENWORLD

    - by Zeynep Koch
    We have had great sessions today at Openworld but tomorrow will be even better. The session that you should not miss is : Tuesday, Oct 2nd : General Session: Oracle Linux Strategy and Roadmap   10:15am, Moscone South #103   Wim Coekaerts, Sr.VP, Oracle Linux and Virtualization Engineering will talk about what Oracle Linux strategy and what is coming in the next 12 months. This is one session you should not miss and people are already registering. Stop by to hear Wim and ask questions about Linux development Top Technical Tips for Automatic and Secure Oracle Linux Deployments,  11:45am, Moscone South # 270 In this session, you will hear about deployment best practices and tips from Lenz Grimmer from Oracle and two Linux customers, Martin Breslin from SEI and Ed Bailey from Transunion talk about their experiences and insights Why Switch to Oracle Linux?, 3:30pm, Moscone South #270 In this session you will learn why Oracle Linux is best for your enterprise. There will be an Oracle speaker and Mike Radomski from SUNY talk about why they chose Oracle Linux. Please also visit the Oracle Linux Pavilion. If you stop by in one of our Partners booth you can be in the drawing for this beautiful, plush penguin. See you all tomorrow.

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  • MySQL Connect Call for Papers Open Now, until May 6

    - by Bertrand Matthelié
    @font-face { font-family: "Arial"; }@font-face { font-family: "Cambria"; }p.MsoNormal, li.MsoNormal, div.MsoNormal { margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: "Times New Roman"; }a:link, span.MsoHyperlink { color: blue; text-decoration: underline; }a:visited, span.MsoHyperlinkFollowed { color: purple; text-decoration: underline; }div.Section1 { page: Section1; } MySQL Connect will take place in San Francisco September 29 and 30; you can read the Press Release here. The call for papers is open until May 6, submit your sessions now! This is your chance to present your real-world experience and share your expertise and best practices with the MySQL community. The conference includes six tracks: Performance and Scalability, High Availability, Cloud Computing, Architecture and Design, Database Administration, and Application Development. You can submit conference sessions as well as BOF (Birds-of-a-Feather) sessions. We look forward to hearing from you! Interested in sponsorship and exhibit opportunities? You will find more information here. Registration for MySQL Connect also opened today. Register now to take advantage of the Early Bird discount! MySQL Connect will be jam-packed with technical sessions, hands-on labs and Birds of a Feather (BOF) sessions delivered by MySQL community members, users, customers and MySQL engineers from Oracle. The event is a unique opportunity to learn about the latest MySQL features, discuss product roadmaps, and connect directly with the engineers behind the latest MySQL code.

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  • EBS Diagnostics & Trailing Spaces

    - by Robert Story
    Upcoming WebcastsTitle: EBS Diagnostics & Trailing SpacesDate: April 20, 2010 Time: 2:00 pm Japan, 10:30 am India, 07:00 am CET, 03:00 pm Australia Click here to register for this sessionDate: April 21, 2010 Time: 10:30 am EDT, 8:30 am MDT, 8:00 pm India, 04:30 pm CET, 03:30 pm UK Click here to register for this sessionProduct Family: EBS Diagnostics Summary This 1.5 hour session is recommended for technical and functional users who are interested to get a generic overview about the EBS Diagnostics and the specific Diagnostic about "Leading Trailing spaces" to identify the root cause of FRM-40654 errors in any functional Form. Topics will include: Introduction to Diagnostics Catalog Host Note Diagnostics - Trailing and Leading Spaces Demonstration A short, live demonstration (only if applicable) and question and answer period will be included....... ....... ....... ....... ....... ....... .......The above webcast is a service of the E-Business Suite Communities in My Oracle Support.For more information on other webcasts, please reference the Oracle Advisor Webcast Schedule.Click here to visit the E-Business Communities in My Oracle Support Note that all links require access to My Oracle Support.

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  • Call for authors for new eBook on the Windows Azure Platform

    - by Eric Nelson
    I intend to pull together a FREE eBook on the Windows Azure Platform – but I need your help to make it rock! If you have detailed experience of any aspect of the Windows Azure Platform and can spare a few hours of time to turn that into a short article (400 to 800 words) then please get in touch. This is not a big commitment but my suspicion is the end result will make for a cracking good read. I am hoping for a mix – everything from lessons learnt from early adopters to introductions to elements of the platform to getting technologies such as Ruby up and running on Azure. 10 to 20 articles sound about right – which means I am after 10 to 20 authors :) All I need from you right now is: One or two suggestions of topics you would like to cover A pointer to any example of your previous work – which could be as simple as a blog post or a work document. For simplicity, just drop me an email direct to eric.nelson A@T microsoft.com. BIG THANKS! Eric The provisional dates are: Confirm authors and topics by 3rd May Get first draft from all authors by 10th May Complete reviews by 17th May Final versions by 24th May Published by 31st May And finally, an example: To give you an idea of what I have in mind, check out the eBook we pulled together last December which has had several thousand downloads. However I’m thinking of making this one a little bit more fun/informal. More on that later. UK MSDN Flash eBook Best Technical Articles #2 - ericnel Related Links: Spread the word – 6 Weeks of FREE Azure Training UK Azure Online Community – join today. UK Windows Azure Site Start working with Windows Azure

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  • What causes bad performance in consumer apps?

    - by Crashworks
    My Comcast DVR takes at least three seconds to respond to every remote control keypress, making the simple task of watching television into a frustrating button-mashing experience. My iPhone takes at least fifteen seconds to display text messages and crashes ¼ of the times I try to bring up the iPad app; simply receiving and reading an email often takes well over a minute. Even the navcom in my car has mushy and unresponsive controls, often swallowing successive inputs if I make them less than a few seconds apart. These are all fixed-hardware end-consumer appliances for which usability should be paramount, and yet they all fail at basic responsiveness and latency. Their software is just too slow. What's behind this? Is it a technical problem, or a social one? Who or what is responsible? Is it because these were all written in managed, garbage-collected languages rather than native code? Is it the individual programmers who wrote the software for these devices? In all of these cases the app developers knew exactly what hardware platform they were targeting and what its capabilities were; did they not take it into account? Is it the guy who goes around repeating "optimization is the root of all evil," did he lead them astray? Was it a mentality of "oh it's just an additional 100ms" each time until all those milliseconds add up to minutes? Is it my fault, for having bought these products in the first place? This is a subjective question, with no single answer, but I'm often frustrated to see so many answers here saying "oh, don't worry about code speed, performance doesn't matter" when clearly at some point it does matter for the end-user who gets stuck with a slow, unresponsive, awful experience. So, at what point did things go wrong for these products? What can we as programmers do to avoid inflicting this pain on our own customers?

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  • Formalizing a requirements spec written in narrative English

    - by ProfK
    I have a fairly technical functionality requirements spec, expressed in English prose, produced by my project manager. It is structured as a collection of UI tabs, where the requirements for each tab are expressed as a lit of UI fields and a list of business rules for the tab. Most business rules are for UI fields on a tab, e.g: a) Must be alphanumeric, max length 20. b) Must be a dropdown, with values from table x. c) Is mandatory. d) Is mandatory under certain conditions, e.g. another field is just populated, or has a specific value. Then other business rules get a little more complex. The spec is for a job application, so the central business object (table) is the Applicant, and we have several other tables with one-to-many relationships with applicant, such as Degree, HighSchool, PreviousEmployer, Diploma, etc. e) One such complex rule says a status field can only be assigned a certain value if a many-side record exists in at least one of the many-side tables. E.g. the Applicant has at least one HighSchool or at least one Diploma record. I am looking for advice on how to codify these requirements into a more structured specification defined in terms of tables, fields, and relationships, especially for the conditional rules for fields and for the presence of related records. Any suggestions and advice will be most welcome, but I would be overjoyed if i could find an already defined system or structure for expressing things like this.

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  • Connect to localdb using Sql Server management studio

    - by Magnus Karlsson
    I was trying to find my databse for local db under localhost etc but no luck. The following led me to just connect to it, kind of obvious really when you look at your connections string but.. its sunday morning or something.. From: http://blogs.msdn.com/b/sqlexpress/archive/2011/07/12/introducing-localdb-a-better-sql-express.aspx High-Level Overview After the lengthy introduction it's time to take a look at LocalDB from the technical side. At a very high level, LocalDB has the following key properties: LocalDB uses the same sqlservr.exe as the regular SQL Express and other editions of SQL Server. The application is using the same client-side providers (ADO.NET, ODBC, PDO and others) to connect to it and operates on data using the same T-SQL language as provided by SQL Express. LocalDB is installed once on a machine (per major SQL Server version). Multiple applications can start multiple LocalDB processes, but they are all started from the same sqlservr.exe executable file from the same disk location. LocalDB doesn't create any database services; LocalDB processes are started and stopped automatically when needed. The application is just connecting to "Data Source=(localdb)\v11.0" and LocalDB process is started as a child process of the application. A few minutes after the last connection to this process is closed the process shuts down. LocalDB connections support AttachDbFileName property, which allows developers to specify a database file location. LocalDB will attach the specified database file and the connection will be made to it.

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  • My first encounter with SmartAssembly

    - by Peter Larsson
    Let me start by writing I am a supreme VB6 programmer, but I have very little experience with VB.Net, so I think I still need some more time learning SmartAssembly. SmartAssembly make obfuscating and merging dll files a piece of cake! With it's simple, straight forward and clean GUI I did make my tests work. With other obfuscators like Xenocode, Salamander etc which lets you (and in some cases forces you) control more advanced settings, you really have to know what you are doing. Especially when it comes to protecting code that uses external dependencies. My most annoying experience is that if you start checking radio buttons and activating different obfuscating features in SmartAssembly, you will end up breaking your working code as well, if you like me is not that experienced and don't know what you’re doing. SmartAssembly have some troubleshooting information on their website which explains why the application will fail in some scenarios. So why not extend these checks in some deeper analyzing stage on the dll's? By doing that I think more people could get fully functional dll's out of the box instead of trying different settings and then test the protected dll and see if it's working or not. //Peter

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  • What ways are there to determine if an idea for change is viable or not?

    - by Kenneth
    A recent discussion on here about whether or not program windows should still be called screens or if we should have improved terminology got me thinking... Dangerous I know! People as a whole tend to be fairly resistant to change. We get comfortable in our niches and used to the way things are. While some changes lead to good results and improve our lives or the way things are done, others are clearly not enough of a change or overall bad and not even worth attempting. What guides can we use as we program to determine if an improvement (whether it be to coding style, terminology, user interface, language use, etc) is really an improvement or not? I'm sure to some extent nothing will replace the try-it-out approach but are there any tests or guides that can be used to eliminate certain ideas that would eventually turn out to be worthless or a waste of time to pursue? EDIT: For anyone who is wondering the discussion that brought this question up in my mind is found here: Does your organization still use the term "screens" to describe a user interface?

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  • Top 10 OTN Tech Articles for 2012

    - by Bob Rhubart
    It takes a special kind of IT pro to risk additional carpal tunnel damage to pound out a technical article after spending the day wrestling with a keyboard in dealing with other duties. That kind of dedication is noteworthy, even more so if people actually take the time to read the resulting article. So if you know any of the authors listed below, skip the handshake and give them a congratulatory slap on the back for all that time spent torturing their tendons. Their hard work has earned a place on this list of  the Top 10 most popular OTN articles published in 2012.  Getting Started with Java SE Embedded on the Raspberry Pi by Bill Courington and Gary Collins How Dell Migrated from SUSE Linux to Oracle Linux by Jon Senger, Aik Zu Shyong, and Suzanne Zorn Exploring Oracle SQL Developer by Przemyslaw Piotrowski Getting Started with Oracle Unbreakable Enterprise Kernel Release 2 by Lenz Grimmer How to Get Started (FAST!) with JavaFX 2 and Scene Builder by Mark Heckler How to Use Oracle VM VirtualBox Templates by Yuli Vasiliev How to Update Oracle Solaris 11 Systems From Oracle Support Repositories by Glynn Foster Tips for Hardening an Oracle Linux Server by Lenz Grimmer and James Morris How To Configure Browser-based SSO with Kerberos/SPNEGO and Oracle WebLogic Server by Abhijit Patil How to Create a Local Yum Repository for Oracle Linux by Jared Greenwald Of course, OTN has a great many articles covering a broad range of topics of interest to Java developers, DBAs, sysadmins, solution architects, and everybody else who works keeping the IT world running. You'll find them here. If you have suggestions for topics or technologies you'd like to see covered, please let us know. And if you have insight and expertise to share, why not write your own article? Click here to learn how to get published on OTN.

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  • New META TAGS with positive effects for seo ranking in 2011 and beyond

    - by Sam
    Hi all, im trying to make an up to date chart of meta tags, for all of us, with their purposes, their use and their good (or bad) effects on search engines/being found. Also any body knows new/promising meta tags? I will add yours into my list so this chart is a result of live discussion and up to date. Also, it would be creative to invent your own useful meta, because we are the ones making the web, or aren't we? LEGEND P PURPOSE? What does this meta tag do in 2011, if anything N NECESSARY? Does every site really needs it or not? G GOOD wether it will have a good effect for your site to be found I INVENTED meta tag, who knows it will be accepted in a year! META "METANAME" = PURPOSE? - NECESSARY? - GOOD EFFECT? #### important meta "title" = P consice summary + teaser - N very - G extremely meta "description" = P description + teaser - N yes - G very meta "robots" = P if needed, to skip default dmoz/yahoodir listing - N no - G? #### new & promising! Thanks for input (John, ) meta "original-source" P url of whoever broke the news gets credits - N? - G? meta "syndication-source" P url for syndication of published news - N? - G? meta "canonical" P? - N? - G? #### seems obsolete meta "keywords" = P some keywords - N+G not for google but yahoo likes them meta "language" = P overrule guesswork by defining language - N no - G? meta "page-topic" = P topic/theme - N? - G? meta "abstract" = P short summary - N? - G? meta "copyright" = ? #### invented by me meta "audience" = P filteres audience: "+seniors, +parents, -children, -youth" meta "mood" = P specifies textual style: "discussion, informative, commercial, sexual, fictional, scientific, romantic, therapeutic, technical"

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  • INCLUDE ON YOUR SOLUTION ORACLE'S BUSINESS INTELLIGENCE SOFTWARE / 22 Fev 11

    - by Claudia Costa
    Convidamo-lo a assistir à sessão ISV Partner Embedded BI que decorrerá no prximo dia 22 de Fevereiro nas instalações da Oracle, em Porto Salvo. Não perca esta oportunidade de descobrir como pode modernizar a sua aplicação através da inclusão do Oracle Business Intelligence (OBI 11g). Durante esta sessão, ficará a saber como tornar os seus relatórios e a informação de apoio à gestão mais competitivos, e em simultâneo como pode proporcionar aos seus clientes informação de gestão com um visual apelativo. Qual a importância que esta temática tem para si? Ao encorporar a solução Oracle BI na sua aplicação, poderá mais rapidamente endereçar oportunidades de mercado, acrescentando valor ao seu produto. Poderá também baixar o custo total de propriedade (TCO) e proporcionar um retorno de investimento maior. Em caso de dúvida ou eventual esclarecimento, por favor contacte Claudia Costa - Telf: 21 4235027 ou email: [email protected]. Contamos com a sua presença! Agenda 09:15 Registo 09:30 Boas Vindas e Introdução - Paulo Costa, ISV Manager Oracle Portugal 09:40 The BI&EPM Market and Oracle's Strategic Position - Mike Hallet, BI and EPM Director Oracle EMEA 10:00 Oracle Business Intelligence 11g - Most Complete, Open, Integrated and Embeddable solution - Guy Ernoul, Master Principal Sales Consultant 11:00 Coffee Break 11:20 Introduction to the embedded BI program for ISV partners - Mike Hallet, BI and EPM Director Oracle EMEA 12:00 Partner showcase of an Oracle Embedded BI solution 13:00 Lunch 14:00 Technical Presentation - Guy Ernoul, Master Principal Sales Consultant OBI Administration: Architecture Creating & Manage the (Presentation, Model, Physical) Layer Administration using FMW control Diagnostic and performance for Enterprise Manager Demonstration OBI Utilization: Analyse & Dashboard Reports Action Framework Map & Scorecard APIs for Embedding OBI 11g (Go, Xml, ADF) Demonstration 16:00 Encerramento22 Fevereiro de 2011 9.30 a.m. - 4.00 p.m. Instalações Oracle Showroom Lagoas Park - Edf 8 Porto SalvoAssista a este evento exclusivo Inscrições Gratuitas. Lugares Limitados!Registe-se já!

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  • Troubleshooting EBS Discovery Issues - Part 2

    - by Kenneth E.
    Part 1 of “Troubleshooting EBS Discovery Issues”, which was posted on May 17th, focused on the diagnostics associated with the initial discovery of an EBS instances (e.g., Forms servers, APPL_TOPs, databases, etc.).Part 2 focuses on verifying parameters of the Change Management features, also called "Pack Diagnostics, specifically for Customization Manager, Patch Manager, Setup Manager, Automated Cloning, and User Monitoring.  As stated in the first post, there can be numerous reasons that Discovery fails - credentials, file-level permissions, patch levels - just to name a few.The Discovery Wizard can be accessed from the EBS homepage.  From the home page, click "Pack Diagnostics"Click "Create" to define the diagnostic processProvide the required inputs; Name, Module (i.e., Customization Manager, Patch Manager, Setup Manager, Automated Cloning, and User Monitoring), Show Details (typically "All"), and Category (typically check both Generic and User Specific).  Add the appropriate targets.Once the diagnostic process has completed, view the results.  Click on "Succeeded" or "Failed" in the Status column.Expand the entire tree and click on each "Succeeded/Failed" status to see the results of each test within that task.Sample output verifying o/s user name and required patches Additional sample output showing a failed testComplete descriptions of, as well as recommended corrective actions for, all of the diagnostic tests that are run in EM 12c is found in this spreadsheet.  Additional information can be found in the Application Management Pack User Guide.

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  • MySQL Policy-Based Auditing Webinar Recording Now Availabile

    - by Rob Young
    For those who missed the live event, the recording of the "How to Add Policy-Based Auditing to your MySQL Applications" webinar is now available.  You can view it here. This presentation builds on my earlier blog post on MySQL Enterprise Audit that was announced at MySQL Connect in late September.  The web presentation expands on the introductory blog and covers: The regulatory problem to be solved (internal audit, PCI, Sarbanes-Oxley, HIPAA, others) MySQL Audit solutions for both Community and Enterprise users: General Log - use the basic features of the MySQL server MySQL 5.5 open audit API - or use your time and talent to build your own solution MySQL Enterprise Audit - or use the out of the box, ready for production solution from MySQL Simple, step-by-step process for installing, enabling and configuring the MySQL Enterprise Audit plugin for use with existing apps New variables and options for tuning the MySQL Enterprise Audit plugin for your specific use case Best practices for securing and managing audit log files and archived images Roadmap for adding an integrated solution around MySQL Enterprise Audit for MySQL only and Oracle/MySQL shops You can learn all the technical details on MySQL Enterprise Audit in the MySQL docs and learn all about MySQL Enterprise Edition and Auditing here. As always, thanks for your support of MySQL!

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  • Why are some seasoned ASP.NET developers defecting to Ruby on Rails?

    - by Tony_Henrich
    Once a while I hear some known ASP.NET developer declaring that they quit developing in .NET and moving to Ruby using Ruby in Rails. The problem is they don't mention exactly the reasons. They use words like RoR is 'easier', 'better' & 'faster'. That really doesn't say much to me. Anyone care to do faithful comparison using code samples, case studies ..etc or from personal experience in using both? Try to convince me to throw away all my years of learning C#, the .NET Framework using a powerful IDE (Visual Studio). Does RoR save you hours a week in development time? What are the major pain points in .NET that compels one to move away from it? This question is NOT about a pure RoR vs ASP.NET (MVC) comparison. It's about the compelling technical reasons (getting bored does not count!) to switch over after using a platform for several years and start with a new language and platform. (prefer this to be a wiki)

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  • The emergence of Atlassian's Bamboo (and a free SQL Source Control license offer!)

    - by David Atkinson
    The rise in demand for database continuous integration has forced me to skill-up in various new tools and technologies, particularly build servers. We have been using JetBrain's TeamCity here at Red Gate for a couple of years now, having replaced the ageing CruiseControl.NET, so it was a natural choice for us to use this for our database CI demos. Most of our early adopter customers have also transitioned away from CruiseControl, the majority to TeamCity and Microsoft's TeamBuild. However, more recently, for reasons we've yet to fully comprehend, we've observed a significant surge in the number of evaluators for Atlassian's Bamboo. I installed this a couple of weeks back to satisfy myself that it works seamlessly with Red Gate tools. As you would expect Bamboo's UI has the same clean feel found in any Atlassian tool (we use JIRA extensively here at Red Gate). In the coming weeks I will post a short step-by-step guide to setting up SQL Server continuous integration using the Red Gate command lines. To help us further optimize the integration between these tools I'd be very keen to hear from any Bamboo users who also use Red Gate tools who might be willing to participate in usability tests and other similar research in exchange for Amazon vouchers. If you are interested in helping out please contact me at David dot Atkinson at red-gate.com I recently spoke with Sarah, the product marketing manager for Bamboo, and we ended up having a detailed conversation about database CI, which has been meticulously documented in the form of a blog post on Atlassian's website: http://blogs.atlassian.com/2012/05/database-continuous-integration-redgate/ We've also managed to persuade Red Gate marketing to provide a great free-tool offer, provide a free SQL Source Control or SQL Connect license to Atlassian users provided it is claimed before the end of June! Full details are at the bottom of the post. Technorati Tags: sql server

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  • Supporting HR Transformation with HelpDesk for Human Resources

    - by Robert Story
    Upcoming WebcastTitle: Supporting HR Transformation with HelpDesk for Human ResourcesDate: May 13, 2010 Time: 9:00 am PDT, 10 am MDT, 17:00 GMT Product Family: PeopleSoft HCM & EBS HRMS Summary HR transformation is a strategic initiative at many companies where world-class employee HR service delivery and a reduction of HR operating costs are top priorities. Having a centralized service delivery model and providing employees with tools to better help themselves can be very key to this initiative. This session shares how Oracle's PeopleSoft HelpDesk for Human Resources provides the technology foundation and best practices for this transformation. HelpDesk for Human Resources now integrates with both PeopleSoft HCM and E-Business Suite HRMS. This one-hour session is recommended for technical and functional users who want to understand what is new in PeopleSoft Help Desk for Human Resources 9.1 and how it benefits both PeopleSoft HCM and E-Business Suite HRMS customers. Topics will include: Understand the latest features and functionality Gain insight into future product direction Plan for implementation or upgrade of this module in your current system A short, live demonstration (only if applicable) and question and answer period will be included. Click here to register for this session....... ....... ....... ....... ....... ....... .......The above webcast is a service of the E-Business Suite Communities in My Oracle Support.For more information on other webcasts, please reference the Oracle Advisor Webcast Schedule.Click here to visit the E-Business Communities in My Oracle Support Note that all links require access to My Oracle Support.

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  • OEPE with ADF binding support available: Total Eclipse

    - by Frank Nimphius
    The current release of Oracle Enterprise Pack for Eclipse, though in technology preview, brings Oracle ADF binding to the Eclipse IDE. You can download the Software from the link below: Oracle Enterprise Pack for Eclipse (12.1.1.1.0) Technical Preview New June 2012 Certified on Windows 7/XP/Vista, MacOS, and Linux. Supported on JDK 6. For many Eclipse users, ADF is new and therefore I expect them to need guidance and help in case they run into issues they don't know how to recover from. Similar, ADF users familiar with Oracle JDeveloper that want to give OEPE a try, will find things different in Eclipse and thus may have questions.  For both audiences I suggest to post issues to the OEPE forum on the Oracle Technology Network: I'll extend my OTN monitoring to include the OEPE forum on a daily basis to learn about developer needs, requirements and - of course - to catch bugs that need to be filed. From my side this is a part-time involvement, which means that the more ADF questions show on the forum, the more help I could need in answering them. The OTN forum for JDeveloper in my opnion wouldn't be the right place to go to unless the question is a generic ADF question that is not dependent on the integration in Eclipse. Here's the OEPE forum link for a start https://forums.oracle.com/forums/forum.jspa?forumID=578 Frank

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  • Designing javascript chart library

    - by coolscitist
    I started coding a chart library on top of d3js: My chart library. I read Javascript API reusability and Towards reusable charts. However, I am NOT really following the suggestions because I am not really convinced about them. This is how my library can be used to create a bubble chart: var chart = new XYBubbleChart(); chart.data = [{"xValue":200,"yValue":300},{"xValue":400,"yValue":200},{"xValue":100,"yValue":310}]; //set data chart.dataKey.x = "xValue"; chart.dataKey.y = "yValue"; chart.elementId = "#chart"; chart.createChart(); Here are my questions: It does not use chaining. Is it a big issue? Every property and function is exposed publicly. (Example: width, height are exposed in Chart.js). OOP is all about abstraction and hiding, but I don't really see the point right now. I think exposing everything gives flexibility to change property and functionality inside subclasses and objects without writing a lot of code. What could be pitfalls of such exposure? I have implemented functions like: zooming, "showing info boxes when data point is clicked" as "abilities". (example: XYZoomingAbility.js). Basically, such "abilities" accept "chart" object, play around with public variables of "chart" to add functionality. What this allows me to do is to add an ability by writing: activateZoomAbility(chartObject); My goal is to separate "visualization" from "interactivity". I want "interactivity" like: zooming to be plugged into the chart rather than built inside the chart. Like, I don't want my bubble chart to know anything about "zooming". However, I do want zoomable bubble chart. What is the best way to do this? How to test and what to test? I have written mixed tests: jasmine and actual html files so that I can test manually on browser.

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  • Good resources for learning Rails?

    - by Bobby Tables
    I just finished working through Peter Cooper's "Beginning Ruby". So now I've got a reasonable grounding in the Ruby language and would like to move onto learning Rails. This question's answers give some good pointers, but I'd like to hear some specific reviews of books and online materials. I generally learn best by working through books with good practical/technical examples AND some passive reading content that breaks up the study between practical and reading sessions (this is what made "Beginning Ruby" great for me), but I'm worried that RoR is evolving fast and that any printed book I order might be obsolete by the time I get it and work through it. Is this a fair worry? Or can anyone recommend a good Rails 3 book that should be up to date at least for the next year or so? Also, I had a brief look at some of the online resources from the other questions, and Rails for Zombies seems to get a lot of praise. Has anyone here actually used it as their introductory guide to Rails? Basically I'd like to hear first-hand accounts of people who went through this "Ruby-to-Rails" learning phase recently and which materials were useful to you.

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  • Am I wrong to disagree with A Gentle Introduction to symfony's template best practices?

    - by AndrewKS
    I am currently learning symfony and going through the book A Gentle Introduction to symfony and came across this section in "Chapter 4: The Basics of Page Creation" on creating templates (or views): "If you need to execute some PHP code in the template, you should avoid using the usual PHP syntax, as shown in Listing 4-4. Instead, write your templates using the PHP alternative syntax, as shown in Listing 4-5, to keep the code understandable for non-PHP programmers." Listing 4-4 - The Usual PHP Syntax, Good for Actions, But Bad for Templates <p>Hello, world!</p> <?php if ($test) { echo "<p>".time()."</p>"; } ?> (The ironic thing about this is that echo statement would look even better if time was variable declared in the controller, because then you could just embed the variable in the string instead of concatenating) Listing 4-5 - The Alternative PHP Syntax, Good for Templates <p>Hello, world!</p> <?php if ($test): ?> <p><?php echo time(); ?> </p><?php endif; ?> I fail to see how listing 4-5 makes the code "understandable for non-PHP programmers", and its readability is shaky at best. 4-4 looks much more readable to me. Are there any programmers who are using symfony that write their templates like those in 4-4 rather than 4-5? Are there reasons I should use one over the other? There is the very slim chance that somewhere down the road someone less technical could be editing it the template, but how does 4-5 actually make it more understandable to them?

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  • Extreme Optimization Numerical Libraries for .NET – Part 1 of n

    - by JoshReuben
    While many of my colleagues are fascinated in constructing the ultimate ViewModel or ServiceBus, I feel that this kind of plumbing code is re-invented far too many times – at some point in the near future, it will be out of the box standard infra. How many times have you been to a customer site and built a different variation of the same kind of code frameworks? How many times can you abstract Prism or reliable and discoverable WCF communication? As the bar is raised for whats bundled with the framework and more tasks become declarative, automated and configurable, Information Systems will expose a higher level of abstraction, forcing software engineers to focus on more advanced computer science and algorithmic tasks. I've spent the better half of the past decade building skills in .NET and expanding my mathematical horizons by working through the Schaums guides. In this series I am going to examine how these skillsets come together in the implementation provided by ExtremeOptimization. Download the trial version here: http://www.extremeoptimization.com/downloads.aspx Overview The library implements a set of algorithms for: linear algebra, complex numbers, numerical integration and differentiation, solving equations, optimization, random numbers, regression, ANOVA, statistical distributions, hypothesis tests. EONumLib combines three libraries in one - organized in a consistent namespace hierarchy. Mathematics Library - Extreme.Mathematics namespace Vector and Matrix Library - Extreme.Mathematics.LinearAlgebra namespace Statistics Library - Extreme.Statistics namespace System Requirements -.NET framework 4.0  Mathematics Library The classes are organized into the following namespace hierarchy: Extreme.Mathematics – common data types, exception types, and delegates. Extreme.Mathematics.Calculus - numerical integration and differentiation of functions. Extreme.Mathematics.Curves - points, lines and curves, including polynomials and Chebyshev approximations. curve fitting and interpolation. Extreme.Mathematics.Generic - generic arithmetic & linear algebra. Extreme.Mathematics.EquationSolvers - root finding algorithms. Extreme.Mathematics.LinearAlgebra - vectors , matrices , matrix decompositions, solvers for simultaneous linear equations and least squares. Extreme.Mathematics.Optimization – multi-d function optimization + linear programming. Extreme.Mathematics.SignalProcessing - one and two-dimensional discrete Fourier transforms. Extreme.Mathematics.SpecialFunctions

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  • 1and1: Unable to host an external domain

    - by Django Reinhardt
    I'm sorry if this isn't the right place for this question, but I'm presently having difficulties with my hosting provider (1and1). Two weeks ago, two of my clients bought hosting from them on my recommendation, but as it turned out, 1and1 are having severe technical difficulties. Right now non of their hosting packages are able to accept ANY external domains. So either you pay the costs of transferring the registrar of your domain, or you use the ugly 1and1 domain name. Not any good for a hosting company of 1and1's reputation! They have been promising me for two weeks that they're going to fix the problem, but as you have probably guessed by now, that hasn't been the case. I would like to know if a) Anyone else is in the same boat as me, and b) If there are other comparably reputable hosting providers that I should consider moving to instead? Very disappointing! :( Note: This is for 1and1 in the UK. I imagine it isn't affecting users in other countries(?) Clarification: 1and1 are unable to accept ANY external domains. That means that even if you update your DNS details on your domain, their system cannot be updated to add your external domain to your account.

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  • Free Virtual Developer Day - Oracle Fusion Development

    - by Simone Geib
    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;} Simpler Java Development with Oracle ADF and Fusion Middleware. Join a free online developer day where you can learn about the various components that make up the Oracle Fusion Middleware development platform including Oracle WebCenter, Business Intelligence, BPM and more! Online seminars, hands-on lab and live chats with our technical staff is available directly from your computer.  Register now and join us on July 10th: https://oracle.6connex.com/portal/fusiondev/login?langR=en_US

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  • What are the boundaries between the responsibilities of a web designer and a web developer?

    - by Beofett
    I have been hired to do functional development for several web site redesigns. The company I work for has a relatively low technical level, and the previous development of the web sites were completed by a graphic designer who is self taught as far as web development is concerned. My responsibilities have extended beyond basic development, as I have been also tasked with creating the development environment, and migrating hosting from external CMS hosting to internal servers incorporating scripting languages (I opted for PHP/MySQL). I am working with the graphic designer, and he is responsible for the creative design of the web. We are running into a bit of friction over confusion between the boundaries of our respective tasks. For example, we had some differences of opinion on navigation. I was primarily concerned with ease-of-use (the majority of our userbase are not particularly web-savvy), as well as meeting W3 WAI standards (many of our users are older, and we have a higher than average proportion of users with visual impairment). His sole concern was what looked best for the website, and I felt that the direction he was pushing for caused some functional problems. I feel color choices, images, fonts, etc. are clearly his responsibility, and my expectation was that he would simply provide me with the CSS pages and style classes and IDs to use, but some elements of page layout also seem to fall more under the realm of "usability", which to me translates as near-synonymous with "functionality". I've been tasked with selecting the tools we'll use, which include frameworks, scripting languages, database design, and some open source applications (Moodle for example, and quite probably Drupal in the future). While these tools are quite customizable, working directly with some of the interfaces is beyond his familiarity with CSS, HTML, and PHP. This limits how much direct control he has over the appearance, which has lead to some discussion about the tool choices. Is there a generally accepted dividing line between the roles of a web designer and a web developer? Does his relatively inexperienced background in web technologies influence that dividing line?

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