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• Mixed launch mode not supported: [Profile]

  - by Imran

  Friends, I need to debug a application. The using Oracle Workshop for weblogic 10.3, I have downloaded plugins for TPTP. when i tested working of TPTP in a sample Java Standard-alone application it worked. but when i tried to use it for Web-app which uses Weblogic, it prompting me the above error[in the subject]. Please help.

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• JSplitPane giving wrong resize cursor with GTK LAF?

  - by carneades

  Running the official JSplitPane demo http://java.sun.com/docs/books/tutorial/uiswing/components/splitpane.html on my Ubuntu system gives a resize cursor like -- over the divider. The behavior of native split panes gives <-- resize cursors. Does this qualify as a bug that should be reported to Sun (eh, Oracle)? Is there a workaround?

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• Facebook Connect auto-signon?

  - by mattbasta

  So with all these fancy new APIs and such that Facebook is making available, I've noticed that on the partner sites (Pandora, docs.com, etc.), there is no login---Facebook automatically signs you in. You don't even need to press a button to connect if you already have a FB session established. Is this a feature of the new API? Or is this a Facebook partners-only feature? I haven't seen any information on whether this is possible for cool guys that don't run huge companies. Thanks in advance

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• Difference between Document-oriented-DB and Bigtable clones

  - by chen

  We are looking for a suitable storage engine for our weblog history data. We looked at Bigtable's paper and understand it is suitable to us well. However, I also understand that Document-oriented-DB such as MongoDB seems to provide a little more powerful schema power -- i.e, it can model our data as well. I wonder how nowadays ppl choose a scalable NoSQL DB --- I read enough articles like "we looked at A, B and C, and we decided to use C". But I'd like to see some benchmark number. What I am saying is that if MongoDB and the like can provide same level of performance as Bigtable clones, why don't web companies choose it (preparing to deal with various potentially more complex data problem)? Thanks, By the way, I read an article (which convinced me at the moment) saying Cassandra does not fit the M/R operation, any comments?

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• Do make indexes containing another index make sense?

  - by Orlando Dilasso

  Given a table (id, col1, col2), does it make sense to create the following indexes: Index1 (col1) not unique Index2 (col1, col2) not unique I am faced with a legacy database that is full of those. Can I safely delete Index1? Anwser needed for SQL Server and Oracle.

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• What is the right license for tutorial source code ?

  - by devdude

  Putting sourcecode from tutorials or books online requires the author to add some kind of disclaimer or license (otherwise people would use it make lots of $$$ or break a power plant IT control system and sue you as author). But what is the right license or disclaimer statement ? Can I use BSD license with ... IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,... We are talking about tutorials ! Released to teach and share knowledge. Or do I need to follow the (potentially different) licenses of the libraries I use ? Might be insignificant now but I feel we will face a license hunt in "public" sourcecode (aka OSS) in future, similar to companies/lawyers currently crawling the web for pictures with wrong copyright statement or infringing their IP (and suing someone using a picture in a personal blog,etc..).

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• Planning to shift career from Java/J2EE technologies to Java Integration technologies. Please sugges

  - by konda

  Hi, I am Java/J2EE programer with over 5 years of experience. I recently read some posts and I realized that Java Based Integration platforms such as WLI, oracle SOA, Tibco, will rule the future in Java Space. And there are other reasons as well for my move. So, I am planning to move to java integration technologies and I wanted to know from you guys which integration platform will be good one based on my experience. thanks in advance.

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• Enforce single installation with Innosetup?

  - by roo

  We have an application which we licence to separate companies. The app is customised to fit their brand; basically it is the same app but with a different theme file. We generate separate installers for each vendor as each app requires different configurations (servers to connect to, updates etc). So each installer contains the same compiled application but with different configurations. All of this is managed by our build system so adding a new vendor is just a matter of creating a new theme and a simple include script for Inno Setup. Our problem is that we want to ensure that when a user installs the app from vendor A they will not be able to install it from vendor B unless they explicitly uninstall the existing app. Is there some setting in Inno Setup which will check if there is an existing installation (either from the same vendor or a different one) and tell the user they have to remove the existing installation?

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• ETL : Tracking changes to data using Materialized View log

  - by avinash

  I am into designing ETL with source and target database as oracle Standard Edition. For ETL purpose I need to get the changed data everytime.Client does not want any changes to be made in source objects. Is it feasible to create Materialized view log on source database using dblink to track Inser/Update/Delete on the identified tables. Thanks and Regards

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• 'Generic' ViewModel

  - by Ian MacPherson

  Using EF 4, I have several subtypes of a 'Business' entity (customers, suppliers, haulage companies etc). They DO need to be subtypes. I am building a general viewmodel which calls into a service from which a generic repository is accessed. As I have 4 subtypes, it would be good to have a 'generic' viewmodel used for all of these. Problem is of course is that I have to call a specific type into my generic repository, for example: BusinessToRetrieve = _repository .LoadEntity<Customer>(o => o.CustomerID == customerID); It would be good to be able to call <SomethingElse>, somethingElse being one or other of the subtypes), otherwise I shall have to create 4 near identical viemodels, which seems a waste of course! The subtype entity name is available to the viewmodel but I've been unable to figure out how to make the above call convert this into a type. An issue with achieving what I want is that presumably the lambda expression being passed in wouldn't be able to resolve on a 'generic' call ?

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• Software Evaluation license - How safe it is?

  - by Manav Sharma

  almost all the software companies across the globe offer an evaluation version for download. Often the terms and conditions are so many that it's not feasible to go through them. we usually skim through the pages to get to the download link. I was wondering how safe is that? I recently downloaded Rational PurifyPlus for evaluation and I expect that it would cease to function beyond the evaluation period. Are there any changes that the software would quietly move beyond the evaluation period without letting me know thus making me liable? Thanks

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• ORM: why should i use it?

  - by Cris

  Hello, i develop since many years in SQL (many different sql servers like Oracle, MSSql, Mysql) and i always been happy in doing that. I've recently seen a lot of stuff around ORMs and i'm asking why should i move toward this world. Can you give me some good points for spending time in learning a different way to do what i already do today? Thanks in advance c.

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• How do I get developers to treat test code as "real" code?

  - by womp

  In the last two companies I've been at, there is an overriding mentality among developers that it's okay to write unit tests in a throw-away style. Code that they would never write in the actual product suddenly becomes OK in the unit tests. I'm talking Rampant copying and pasting between tests Code styling rules not followed Hard-coded magic strings across tests No object-oriented thought or design for integration tests, mocks or helper objects (250 line single-function tests!) .. and so on. I'm highly dissatisfied with the quality of the test code. Generally we do not do code reviews on our test assemblies, and we also do not enforce style or code analysis of them on our build server. Is that the only way to overcome this inertia about test quality? I'm looking for ideas to take to our developers, without having to go to higher management saying that we need to use resources for enforcement of test quality (although I will if I have to). Any thoughts or similar experiences?

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• Database Schema Managing Framework/Library

  - by Karol Kolenda

  I'm looking for any database framework/library for .net which will act as a unified layer between an application and databases. Please note that I'm not interested in querying/updating data (there is plenty of DALs for that) but rather a framework which allows me to manage table schemas and indexes in a managed fashion (without using database specific SQL). I'm particularly interested in a library which supports Oracle, SQL Server and PostreSQL.

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• Better languages than SQL for stored procedures

  - by Ken Paul

  I'm getting increasingly frustrated with the limitations and verbosity required to actually commit some business logic to stored procedures, using languages such as Transact-SQL or PL/SQL. I would love to convert some current databases to Oracle and take advantage of its support for Java stored procedures, but that option is not available at the moment. What alternatives would you recommend in the way of databases that support stored procedures in other languages?

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• database for streets world wide?

  - by fayer

  i use the downloadable geonames database for all countries, states, counties and cities in the world. but i wonder if there is a database for streets? so you could pick: country - state/department/district - (county/region) - city - street in whatever country you like? cause when i do a search for a street in google map i can see all the upper levels (country/region/city). is there a database you could download for mysql for this? there has to be a database for this, cause there are always national companies that provide this kind of information. where did they get it from? thanks in advance!

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• When we say dbms is it files?

  - by PrithviRaj

  Hi all, when we say rdbms that means it may be oracle, my sql, ms access etc.. But for dbms what are the examples. Is there any example or it just the concept?.

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• How often do you find javascript disabled on browsers?

  - by Mark Redman

  I have started using ajax/jQuery in our websites / application. There are many plugins that support degrading the javascript to browsers that dont have javascript enabled and techniques to support this. What are peoples thoughts on javascript support, we build applications rather than just websites and are looking to just support javascript enabled browsers as a pre-requisite assuming that most people or companies have javascript enabled. Do you find most people have javascript? do you monitor the percentage of javascript/non-javascript browsers (I guess this can be done with website stats) and what are the numbers regarding this?

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• Write-Through Cache

  - by Mubashar Ahmad

  Dear All I am trying to do an C# implementation of Write-through Cache to minimize the read hits on db i need your suggestions, articles or sample codes to fulfill this assignment. Initially this would be use only on one server but will be updated to work in clustered environment. I only able to get a worth reading article on Oracle Site. Please share your views Regards Mubashar

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• Does performance even matter anymore? [closed]

  - by Jeff Dahmer

  The performance differences between C/C++ and C# are astounding. An ASP.NET page loads in 1/8 the time that a PHP script does haha.... WPF, aka " The Future ", (you know it will be, all the companies are gonna want cool looking desktop apps, don't kid yourself.) And it has huge performance hits just to start up. We've let Microsoft make us as developers lazy! Why do I hate this, it's such a good thing? Are we at a point in time where the majority of computers can handle this kinda crap? I remember when performance used to matter. Anyways, I'm writing a .NET library and ever since I found out LINQ is slower than traditional delegates which is slower than the normal procedural code... well it's a guilty evil I feel for every LINQ query I write, because they are so beautiful. Am I just too much of a performance stickler? Or just too big of a nerd?

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• Rails: Polymorphic User Table a good idea with AuthLogic?

  - by sscirrus

  Hi everyone, I have a system where I need to login three user types: customers, companies, and vendors from one login form on the home page. I have created one User table that works according to AuthLogic's example app at http://github.com/binarylogic/authlogic_example. I have added a field called "User Type" that currently contains either 'Customer', 'Company', or 'Vendor'. Note: each user type contains many disparate fields so I'm not sure if Single Table Inheritance is the best way to go (would welcome corrections if this conclusion is invalid). Is this a polymorphic association where each of the three types is 'tagged' with a User record? How should my models look so I have the right relationships between my User table and my user types Customer, Company, Vendor? Thanks very much!

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• Are there commercially deployed and used .NET CAS (Code Access Security) based applications?

  - by Dinis Cruz

  I've seen a couple threads here on SO that ask about what CAS is and how to use it.My specific is specifically focused on real-world usages of CAS. For example: DotNetNuke did some efforts in the past to be able to run under Medium Trust: is that still true? what is the % of DNN that run in partial trust (i.e. not full trust)? what & of DNN modules run in partial trust?) Sharepoint defaults to a Partially-Trusted environment on dlls executed from the bin folder: How many 'commercially' available WebParts can run in this bin folder (without changing the policy)? The key here is to be able to point to CAS success stories, so that other companies feel that they should also invest in writing CAS-enabled apps

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• What is the most you've charged for a single programming job?

  - by David Murdoch

  This question/wiki is more aimed at my fellow freelancers rather than companies or groups...but any and all feedback definitely is welcome. When quoting jobs for anything over $10,000 I always feel uneasy and unsure about the estimate I'm providing (though, I'm not sure why, I know what I'm worth [ I think :-) ] and I charge appropriately. I'm sure there are more (noob) freelancers here on S.O. that feel the same way. In danger of being voted closed because of its subjective (but factual) nature - the question(s): What is the largest amount you have charged for a single programming job (not including maintenance, support, or residual income). What are some of the details of the specific job? (research, q&a, challenges, etc) What languages did you use to get the job done? Assuming you bill your work at an hourly rate, what was the rate? How long did the job actually take you to complete? (from start to deployment, how many weeks, months, years?)

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• Best Practice : Import CSV to MYSQL Database using PHP 5.x

  - by ArneRie

  Howdy Folks, what is the best solution to import large amounts of records into an MySQL or Oracle Database. I Think there are two ways : Insert every record with an persistent connection Create on BIG SQL-Statement and query the Database Iam not sure wich is performing better ? Is there any Best Practice Solutions for this kind of operation ??

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• Propietary modules within GPL and BSD kernels

  - by Francisco Garcia

  Since the Linux kernel is GPL and not LGPL I suppose that it is illegal to link proprietary code to it. How does the industry circumvents this? I would expect that the GPL license will force any developer to release under GPL driver and/or kernel module. Maybe I am confused and implementing a new module is not really linking against the kernel code ??? How do companies deal with this? Maybe linking the other way around (from kernel to their binaries)? On the other hand there is the BSD kernel. Where you are free to link protected IP. Can you get a better design implementing your drivers within a BSD kernel? Is there any design restriction when implementing drivers for GPL kernels?

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