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• Application time out issue

  - by harigm

  I have build the web application using Java1.5, Struts framework with Mysql database Deployed on the JBOSS4.0.5 Server Every thing seems to be fine when the activity is there on the server. Every morning, If I tried to connect to application, it shows the application is down. Once I restart the server, It works fine. From past 1 month, I am just restarting the server every day. Can any one help me where I am doing wrong in the configuration settings Please suggest me How i can eliminate this extra work every day

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• MVC design question for forms

  - by kenny99

  Hi, I'm developing an app which has a large amount of related form data to be handled. I'm using a MVC structure and all of the related data is represented in my models, along with the handling of data validation from form submissions. I'm looking for some advice on a good way to approach laying out my controllers - basically I will have a huge form which will be broken down into manageable categories (similar to a credit card app) where the user progresses through each stage/category filling out the answers. All of these form categories are related to the main relation/object, but not to each other. Does it make more sense to have each subform/category as a method in the main controller class (which will make that one controller fairly massive), or would it be better to break each category into a subclass of the main controller? It may be just for neatness that the second approach is better, but I'm struggling to see much of a difference between either creating a new method for each category (which communicates with the model and outputs errors/success) or creating a new controller to handle the same functionality. Thanks in advance for any guidance!

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• Best architecture for a social media app

  - by Sky

  Hey guys, Im working on promising project that develops a new social media app for web and mobile. We are at begin defining functionalities. Nevertheless, I'm thinking ahead on architecture. So I'm asking: 1 - Whats the best plataform to develop the core of this aplication that will have a Rest API interface. 2 - Whats the best database that will scale and grow with my application. As far as I researched, these were the answers I found most interesting: For database: Cassandra NoSQL DB, amazing scalabilty, amazing write performance, good read performance (will be improved on 0.6). I think i will choose that one. Zookeer for transactions on Cassandra. I think that 2 technologies rly good for that propose. What do you think guys? On the front end that will serve the REST API, i dont have a final candidate. For this one i have questions based on Perfomance X Scalabilty X Fast Development/Maintenance. Java or .Net As far as I researched, brings the best balance of this requisits. Python, pearl and Rail, has the best (Fast Development/Maintenance), but sux on all other. C or C++ I dont even consider, because its (Fast Development/Maintenance) sux... So what do you guy think about it?

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• Google Visualization API - Line and Scatter on one Chart.

  - by ealgestorm

  Does any one know if it is possible to use the Default Google Scatter Chart in the Google Visualizations Gallery to draw a scatter chart that has both a series with points only, a series with a line of best fit and on top of this a set of lines across the chart indicating limits. i.e. at +/- 20% etc. The chart we need is actually a Control Chart with multiple series and individual formatting of each series displayed on the chart. i.e some series with only points other series with a line of best fit. Does any one know of a Control Chart that has already been done using the Google Visualization API?

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• Maintain List of Active Users for Web

  - by Bryan Marble

  Problem Statement - Would like to know if particular web app user is active (i.e. logged in and using site) and be able to query for list of active users or determine a user's activity status. Constraints - Doesn't need to be exact (i.e. if a user was active within a certain timeframe, that's ok to say that they're active even if they've closed their browser). I feel like there should be a design pattern for this type of problem but haven't been able to find anything here or elsewhere on the web. Approaches I'm considering: Maintain a table that is updated any time a user performs an action (or some subset of actions). Would then query for users that have performed an action within some threshold of time. Try to monitor session information and maintain a table that lists logged in users and times out after a certain period of time. Some other more standard way of doing this? How would you approach this problem (again, from a design pattern perspective)? Thanks!

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• Keeping It Clean in San Francisco

  - by Cassandra Clark - OTN

  Join us on September 15, when California's largest volunteer event -- Coastal Cleanup Day -- is taking place. You can help by joining Oracle, Oracle partners, and many others at the Ocean Beach cleanup.    Be sure to check in at the Oracle table that will be there. You'll receive an Oracle t-shirt for participating (while supplies last), and can sign up to receive a complimentary Discover Pass to JavaOne* (will be emailed to you). And be sure to get yourself into the group photo, which will be shown on the JavaOne Website. When and where: Ocean Beach at Fulton Street, San Francisco Saturday, September 15, 2012 9 a.m. to Noon Click here for more information, and to register. *Please note that Oracle employees must register for JavaOne via the standard process and are not eligible for this Discover Pass offer.

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• ASP.NET - Web Application, UserControls and NullReferenceExceptions

  - by Echilon

  I have a web application, which works fine if I include my user controls with <%@ Register TagPrefix="mine" TagName="MyUC1" Src="~/UserControls/MyUc1.ascx" %> <%@ Register TagPrefix="mine" TagName="MyUC2" Src="~/UserControls/MyUc2.ascx" %> But I need to use the namespace due to needing to integrate with Umbraco. When I replace the register declaration with: <%@ Register TagPrefix="mine" Namespace="MyAssembly.UserControls" Assembly="MyAssembly"%> I get a null reference exception in the UserControl's Page_Load event (which references an ASP.NET control which is used by the UserControl itself. I find this pretty bizarre, but I've found very little information on how to fix it.

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• Is wordpress a good platform for webapp development?

  - by darlinton

  I am planning a webapp to control bank paying orders. In a quick review, the user goes online and creates a payment order. This order goes to other people that pays it and register the payment on the system. The system keeps track of all the payments, keeping the account balance up-to-date. The system needs a login system, bank integration, and to support at some point thousands of clients. We can find articles on the web about the benefits of using wordpress platform to build webapps. However, I could not find discussion with counterarguments to user wordpress. As the platform the most important choice in webapp project, I would to know more about the pitfalls and harms for choosing wordpress. The question is: What are the benefits and harms for choosing wordpress as a development platform for a webapp that need to be integrated with other system (backend systems) and to handle thousands of users (does it scale up?)?

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• Is there an online user agent database?

  - by Gary Richardson

  How do you parse your user agent strings? I'm looking to get: Browser Browser Version OS OS Version from a user agent string. My app is written in perl and was previously using HTTP::BrowserDetect. It's a bit dated and is no longer maintained. I'm in no way tied to using perl for the actual lookup. I've come to the conclusion that automagic parsing is a lost cause. I was thinking of writing a crud type app to show me a list of unclassified UA's and manually keep them up to date. Does such an resource already exist that I can tap into? It would be awesome if I could make an HTTP call to look up the user agent info. Thanks!

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• Dotnet website - class in one file can't access class in a different file

  - by bmutch

  I've inherited a web site I'm editing in dotnet and it won't compile because the class in one file (say class1.vb) refers to a class in another file (say class2) (like Dim m_c As class2) , but the compiler says "Type Class2 is not defined". when I look in the object browswer the classes are listed separately (i.e. not all grouped under the same namespace) and appear as: Public Class Class1 Inherits System.Object Member of C:...\mywebsite\ Help!, thanks.

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• What is the best source to get hints for starting a small Software Development Business?

  - by MAK

  Is there an online community like stackoverflow.com where I can ask questions on starting new business in the field of software development?

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• Instance Patching Demo for BPM 11.1.1.7 by Mark Nelson

  - by JuergenKress

  BPM 11.1.1.7 has a new ‘instance patching and migration’ feature that allows you to apply changes to running instances of processes (without changing the revision of the process) and/or to migrate running instances between revisions of a process. There is a short viewlet demonstration posted here, but there is unfortunately no sound. SOA & BPM Partner Community For regular information on Oracle SOA Suite become a member in the SOA & BPM Partner Community for registration please visit www.oracle.com/goto/emea/soa (OPN account required) If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Facebook Wiki Mix Forum Technorati Tags: Mark Nelson,BPM,SOA Community,Oracle SOA,Oracle BPM,Community,OPN,Jürgen Kress

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• How can I access UDP ports using a web application on the client PC?

  - by Vaibhav

  One of the thing that current Windows application does is that it writes out information to a hardware device via a UDP message. We are considering porting the application to web-based. I checked Silverlight, and that doesn't allow UDP. We don't want to use ActiveX or Java Applets. What are the other options? Thanks. Update - does anyone know if I can use Flash to do this?

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• Can't start the portable version of NetBeans 6.9.1 IDE

  - by Coder

  I downloaded the portable version of netbeans netbeans-6.9.1-201007282301-ml.zip from the netbeans site and changed the config file in etc/netbeans.conf as indicated on the netbeans site. The file contents are below. # ${HOME} will be replaced by JVM user.home system property #netbeans_default_userdir="${HOME}/.netbeans/6.9" netbeans_default_userdir=".netbeans/6.9" # Options used by NetBeans launcher by default, can be overridden by explicit # command line switches: netbeans_default_options="-J-client -J-Xss2m -J-Xms32m -J-XX:PermSize=32m -J-XX:MaxPermSize=200m -J-Dapple.laf.useScreenMenuBar=true -J-Dapple.awt.graphics.UseQuartz=true -J-Dsun.java2d.noddraw=true" # Note that a default -Xmx is selected for you automatically. # You can find this value in var/log/messages.log file in your userdir. # The automatically selected value can be overridden by specifying -J-Xmx here # or on the command line. # If you specify the heap size (-Xmx) explicitely, you may also want to enable # Concurrent Mark & Sweep garbage collector. In such case add the following # options to the netbeans_default_options: # -J-XX:+UseConcMarkSweepGC -J-XX:+CMSClassUnloadingEnabled -J-XX:+CMSPermGenSweepingEnabled # (see http://wiki.netbeans.org/wiki/view/FaqGCPauses) # Default location of JDK, can be overridden by using --jdkhome <dir>: #netbeans_jdkhome="/path/to/jdk" netbeans_jdkhome="C:\Program Files\Java\jdk1.6.0_24\" # Additional module clusters, using ${path.separator} (';' on Windows or ':' on Unix): #netbeans_extraclusters="/absolute/path/to/cluster1:/absolute/path/to/cluster2" # If you have some problems with detect of proxy settings, you may want to enable # detect the proxy settings provided by JDK5 or higher. # In such case add -J-Djava.net.useSystemProxies=true to the netbeans_default_options. But it refuses to start when i try to run it. If i change the JDK path to something incorrect it complains that it can't find the jdk so i think the jdk path is correct. It also creates a .netbeans directory when i try to start it. I don't see any errors and it just doesn't do anything else observable. Does anybody know how to set up this version of netbeans? Thanks.

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• How do I use a custom authentication mechanism for a Java web application with Spring Security?

  - by Adam

  Hi, I'm working on a project to convert an existing Java web application to use Spring Web MVC. As a part of this I will migrate the existing log-on/log-off mechanism to use Spring Security. The idea at this stage is to replicate the existing functionality and replace only the web layer, leaving the service classes and objects in place. The required functionality is simple. Access is controlled to URLs and to access certain pages the user must log on. Authentication is performed with a simple username and password along with an extra static piece of information that comes from the login page. There is no notion of a role: once a user has logged on they have access to all of the pages. Behind the scenes, the service layer has a class with a simple authentication method: doAuthenticate(String username, String password, String info) throws ServiceException An exception is thrown if the login fails. I'd like to leave this existing service object that does the authentication intact but to "plug it into" the Spring Security mechanism. Can somebody suggest the best approach to take for this please? Naturally, I'd like to take the path of least resistance and leave the work where possible to Spring... Thanks in advance, Adam.

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• Dimdim Change name

  - by islam

  i build dimdim v4.5 on my pc and its work fine with me. each time i want to start meeting i type my pc IP address like this : http://<my-ip-address>/dimdim i want to change the word dimdim to be anything else like : http://<my-ip-address>/meeting regards

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• Should I obscure primary key values?

  - by Scott

  I'm building a web application where the front end is a highly-specialized search engine. Searching is handled at the main URL, and the user is passed off to a sub-directory when they click on a search result for a more detailed display. This hand-off is being done as a GET request with the primary key being passed in the query string. I seem to recall reading somewhere that exposing primary keys to the user was not a good idea, so I decided to implement reversible encryption. I'm starting to wonder if I'm just being paranoid. The reversible encryption (base64) is probably easily broken by anybody who cares to try, makes the URLs very ugly, and also longer than they otherwise would be. Should I just drop the encryption and send my primary keys in the clear?

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• web development using google sites

  - by CHID

  Hi, I have hosted a website. But now my client asks to change it to http://sites.google.com. They hav registered their domain in google. I logged in the site and saw the procedures to create a website from scratch. But is there any way to directly replace the site into google sites. Like, in my site i hav included css files in a folder called stylesheets/css and access it through the link tag. And there are several folders lik that, viz images, scripts etc. 1.Now if i have to transfer it to google sites, where do i create the folders and stuff. I have the priviliges to login to the admin part of the site. 2.And also is there anyway to create database and access it in google sites? 3.Also i see that only html pages can be created. Is there a way to add php pages or other scripting languages? 4.Going forward will google sites be usefull for professional web designing. pls give ideas on whether or not google sites is a good idea to go with

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• Web application

  - by Baz

  hi guys, its my first web application in real world and am very much confuse from the beginning am working on Merchandise suppliers application, which includes various type of products. for an instance Home products cloths men t-shirts add basket send information to my client, I don’t need to add PayPal , just need to send information to my client , So far I have done , analysis , site structure , page designing am confuse about database designing Can any one help me out or send me some example step by step how should I begin with it .

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• What harm can javascript do?

  - by The King

  I just happen to read the joel's blog here... So for example if you have a web page that says “What is your name?” with an edit box and then submitting that page takes you to another page that says, Hello, Elmer! (assuming the user’s name is Elmer), well, that’s a security vulnerability, because the user could type in all kinds of weird HTML and JavaScript instead of “Elmer” and their weird JavaScript could do narsty things, and now those narsty things appear to come from you, so for example they can read cookies that you put there and forward them on to Dr. Evil’s evil site. Since javascript runs on client end. All it can access or do is only on the client end. It can read informations stored in hidden fields and change them. It can read, write or manipulate cookies... But I feel, these informations are anyway available to him. (if he is smart enough to pass javascript in a textbox. So we are not empowering him with new information or providing him undue access to our server... Just curious to know whether I miss something. Can you list the things that a malicious user can do with this security hole. Edit : Thanks to all for enlightening . As kizzx2 pointed out in one of the comments... I was overlooking the fact that a JavaScript written by User A may get executed in the browser of User B under numerous circumstances, in which case it becomes a great risk.

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• Web based delivery pricing system - where to start?

  - by jsims281

  I've been asked to quote on how long it would take to deliver a system such as can be found here: http://cgi.tnt.co.uk/ratechecker/enter_details.asp The client basically wants to give quotes for shipping based on a number of variables such as weight, distance etc, and for it to be accessible through their website. I've thought of the Drupal/Ubercart/Shipping combination but this isn't really what it's designed for. A paid for, off-the-shelf system would also be great but I can't seem to find any that do this properly.. What would be a good system to start with here, or alternatively is there a system that already does this?

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• ArchBeat Link-o-Rama for 2012-08-31

  - by Bob Rhubart

  SOA Suite 11g Asynchronous Testing with soapUI | Greg Mally Greg Mally walks you through testing asynchronous web services with the free edition of soapUI. The Role of Oracle VM Server for SPARC in a Virtualization Strategy | Matthias Pfutzner Matthias Pfutzner's overview of hardware and software virtualization basics, and the role that Oracle VM Server for SPARC plays in a virtualization strategy. Cloud Computing: Oracle RDS on AWS - Connecting with DB tools | Tom Laszewski Cloud expert and author Tom Laszewski shares brief comments about the tools he used to connect two Oracle RDS instances in AWS. Keystore Wallet File – cwallet.sso – Zum Teufel! | Christian Screen "One of the items that trips up a FMW implementation, if only for mere minutes, is the cwallet.sso file," says Oracle ACE Christian Screen. In this short post he offers information to help you avoid landing on your face. Thought for the Day "With good program architecture debugging is a breeze, because bugs will be where they should be." — David May Source: SoftwareQuotes.com

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• Choosing an application server for web application development

  - by harigm

  My manager has asked me to suggest an application server for web application development work. What are the factors that needs to be considered before we select any application server for web application development in Java J2EE development? If I select one now and IN future and I want to change to some other application server, is that minimum effort to change?

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• Novos modelos de licenciamento para Web (Hosting, Cloud e SaaS) - Sessão para Parceiros - 15/Feb/11

  - by Claudia Costa

  RESERVE JÁ O SEU LUGAR!Com o aparecimento de novos modelos de 'deployment' de aplicações em Web - Hosting, On demand, Software-as-a-Service, Cloud Computing, etc - surgem também novas necessidades quanto às formas de licenciamento que permitam criar comerciais que suportem esses novos paradigmas. Neste encontro pretendemos actualizar os parceiros Oracle sobre os vários modelos de licenciamento disponíveis para estas novas forma de disponibilização das aplicações, dando-lhes a informação necessária e sugestões sobres as possíveis linhas de actuação que lhes permitam tirar partido destas novas oportunidades de negócio, e mostrar exemplos de como outros ISV já o estão a fazer. A quem se destina: Directores GeraisResponsáveis Comerciais Responsáveis de Marketing Equipas comerciais Responsáveis pela Gestão do Programa OPN e da relação com a Oracle Agenda What Oracle understands for ISV? Industry trends: Hosting, Cloud Computing e Software as a Service O que é que a Oracle entende por ISV? Revisão dos modelos de licenciamento tradicionais Full Use, Application Specific (ASFU) Novos modelos de licenciamento Hosting, Embedded (ESL), Embedded 'Royalty model', SaaS for ISV's, Proprietory Application Hosting, Modelos não standard Referências / Case Studies Discussão aberta Local e Horário9h30 - 12h30Oracle, Lagoas Park, Edifício 8, Porto SalvoInscrições: Enviar email para: [email protected] mais informações por favor contacte Claudia Costa pelo email ou telefone 21 423 50 27

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• Learning web development as I go

  - by Matt Luongo

  Hey everybody, I've been seriously preparing to take the entrepreneurship leap. I've got a great partner, and we're going to take on some minor funding, and do the thing. Our product is web-based- I'll deem it YAWA (Yet Another Web Application). Both my partner and I have database and web development experience, and I've had a front-end developer in mind for a while. Except, well- he just bowed out. I know a fair amount about the associated technologies (XHTML, CSS, Javascript and some JQuery) interface-side, but I've never had to deal with real-world scenarios, eg cross-browser design. Am I going to be able to survive without this guy? Is it realistic to believe that I can learn the details as I go?

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