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• Problem in JSF2 with client-side state saving and serialization

  - by marcel

  I have a problem in JSF2 with client side state saving and serialization. I have created a page with a full description and a small class diagram: http://tinyurl.com/jsf2serial. For the client-side state saving I have to implement Serializable at the classes Search, BackingBean and Connection. The exception that was thrown is: java.io.NotSerializableException: org.apache.commons.httpclient.HttpClient at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1156) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1474) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1474) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1474) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326) at java.util.HashMap.writeObject(HashMap.java:1001) at sun.reflect.GeneratedMethodAccessor80.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1461) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1474) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150) at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1338) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1146) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326) at java.util.HashMap.writeObject(HashMap.java:1001) at sun.reflect.GeneratedMethodAccessor80.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1461) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326) at com.sun.faces.renderkit.ClientSideStateHelper.doWriteState(ClientSideStateHelper.java:293) at com.sun.faces.renderkit.ClientSideStateHelper.writeState(ClientSideStateHelper.java:167) at com.sun.faces.renderkit.ResponseStateManagerImpl.writeState(ResponseStateManagerImpl.java:123) at com.sun.faces.application.StateManagerImpl.writeState(StateManagerImpl.java:155) at com.sun.faces.application.view.WriteBehindStateWriter.flushToWriter(WriteBehindStateWriter.java:221) at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:397) at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:126) at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:127) at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:313) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) at java.lang.Thread.run(Thread.java:637) Maybe this is a problem of my design, because I am new in developing Java webapps.

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• Testing Paypal error messages using ActiveMerchant

  - by vrish88

  Hello, Is there a way to test your application's processing and handling of Paypal generated credit card errors? I'd like to verify that my application can handle a declined credit card or something like that. So is there a way to have Paypal send an error message? Or would it be better to generate a stub and use it in the testing environment? If this is the better way, how would one generate a stub? Thanks!

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• How to paste text from one app to another using Cocoa?

  - by Navi Sidhu

  I have read about NSPasteBoard in the Apple documentation, and how it allows for applications to write into the PasteBoard and allow other applications to read that text and use it. Could someone tell me how to paste text from am application (that sits in the status bar) into a NSTextField that is inside a different application. What I am trying to do is something similar what Snippet and SnippetsApp do. If I am completely stupid and missed the obvious in Apple Docs, could you please point me to the right path :) Thanks!

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• Delphi - How To Auto Highlight 1st entryIn A DBLookupListBox On Form Creation.

  - by Brad

  How do I auto highlight the 1st entry in a DBLookupListBox without the end user highlighting it. procedure TForm2.FormCreate(Sender: TObject); begin Form2.ActiveControl := DBLookupListBox1; end; But this doesn't work, I've also tried DBLookupListBox1.setfocus on form create, but this gives an error, because the DBLookupListBox is not created yet. Thanks -Brad

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• onchange event not fire in google chrome

  - by purnang.advant

  I have a web application build on asp.net, the Textbox onchange event not working in chrome? On page load i wrote this code, textbox1.Attributes.Add("onchange", "SetEditDataFlag();"); SetEditDataFlag() -- it is a javascript function. When I browse the application in chrome then this function is not called when i changed some value on the textbox.Its working properly in IE. Thanks in advance.Please help me.

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• How do I translate Ruby's IO.popen calls into Python's subprocess.Popen calls?

  - by Tom Morris

  I've read the documentation and I've tried lots of things in the REPL, and Googled, but I can't for the life of me understand how subprocess.Popen works in Python. Here is some Ruby code I am using: IO.popen("some-process") do |io| while(line = io.gets) # do whatever with line end end How do I translate this into Python using subprocess.Popen?

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• .NET Com Interopability

  - by Kottan

  I have a C# class X which inherits from class Y. Class X should be Com-Visible (should be used in an old Vb6 application). It is neccessary to use some Types of class Y in the VB6 application. How can I make them also COM-visible (without changing class Y) ?

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• cake's Acl problems...

  - by Gaurav

  I created an application using the method described in the "http:// book.cakephp.org/view/641/Simple-Acl-controlled-Application" but after I try to log in there is an error which says, "DbAcl::allow() - Invalid node [CORE\cake\libs\controller\components\acl.php, line 325]" I did exactly same as mentioned in the website but after loggin in I am given this error msg.. Please help me rectify this. Any help is greatly appreciated..... thanks gaurav sharma

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• .net 4.0 Adoption Rate

  - by AKRamkumar

  What is the adoption rate of .net 4.0? When will it be on Windows Update? I heard that it is smaller than 3.5, does that mean if I install .net 4.0, it will decrease the space used by the framework? If I make an application in 3.5 and it runs on a computer that has 4.0, will my application get some of the optimizations that 4.0 uses?

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• Installing visual studio express 2010

  - by Josemalive

  Hello, I would like to create some test web applications with visual studio 2010 express. I installed Microsoft Visual C# 2010 Express, but i dont have type of project web application mvc 2. What should i install if i want to create a web mvc 2 application? Thanks in advance. Best Regards. Jose

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• ASP.NET Schedule deletion of temporary files

  - by Quandary

  Question: I have an ASP.NET application which creates temporary PDF files (for the user to download). Now, many users over many days can create many PDFs, which take much disk space. What's the best way to schedule deletion of files older than 1 day/ 8 hours ? Preferably in the asp.net application itselfs...

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• iPhone OS 4.0 backwards compatible with 3.1/.2

  - by Typeoneerror

  Title says it all. I'm building an iPhone application with a base SDK target of 3.1.x. I've got a friend who offered to test it on the OS 4.0 beta, but I'm wondering in advance if I should bother. Will my application run under 4.0 or is it not backwards compatible? I have to imagine it will since apps built for 2.x run on 3.x just fine AFAIK. Any gotchas?

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• IPHONE MPMoviePlayer: Playing video under button layers that can be interacted with while video play

  - by nicholas

  I would like to have layers of buttons over video playing in the background on my IPHONE application. Basically, I'm looking to adjust the Movie Player code, in order to allow the application user to tap on different portions of the screen while a video plays and call other commands (for example a video of puppets talking, if you touch one of the puppets, the video pauses and a second (smaller) window appears with a list of information about that puppet; when you exit that list, the video continues where it was paused).

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• How can join two django querysets in one?

  - by diegueus9

  I need order a Queryset by date in desc order, but i need put in the end the objects at the end, I do this: qs1 = Model.objects.exclude(date=None).order_by('-date') qs2 = Model.objects.filter(date=None).order_by('-date') and my list is: l = list(qs1)+list(qs2) There is a more efficiently way for this?

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• List of social networks which allow developers to find out friend of friends info

  - by Jack

  I have been working on social application development for some time now. I now need to build an application which makes use of friend of friends data. Any info like friend count, interest, location etc. would be helpful. Here's the list I have till now 1) Networks where you can find info about your friend of friends Twitter,Digg 2) Complement Facebook, MySpace, Orkut I am more interested in the latter category. Any help will be appreciated.

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• rails: checking which controller method was called from within the model

  - by bandhunt

  Is there a way to check which controller method was called from within the model? Example: Say the controller create method was called: def create do something end Then in the model do something only when create in the controller was called if create? do something end

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• rails paperclip unable to access image from another view

  - by curiousCoder

  my app has an habtm relation b/w listings and categories. now from the categories index page, a user filters select box to view listings in the show page. now i am not able to access images attached to listings in the category show page. listing.rb attr_accessible :placeholder, :categories_ids has_and_belongs_to_many :categories has_attached_file :placeholder, :styles => { :medium => "300x300>", :thumb => "100x100>" }, :default_url => "/images/:style/missing.png", :url => "/system/:hash.:extension", :hash_secret => "longSecretString" categories controller def index @categories = Category.all end def show @categories = Category.find_by_sql ["select distinct l.* from listings l , categories c, categories_listings cl where c.id = cl.category_id and l.id = cl.listing_id and c.id in (?,?)" , params[:c][:id1] , params[:c][:id2]] end the sql just filters and displays the listings in show page where i can show its attributes, but cant access the placeholder. note the plural @categories in show categories show page <ul> <% @categories.each_with_index do |c, index| %> <% if index == 0 %> <li class="first"><%= c.place %></li> <%= image_tag c.placeholder.url(:thumb) %> <li><%= c.price %></li> <% else %> <li><%= c.place %></li> <li><%= c.price %></li> <%= image_tag c.placeholder.url(:thumb) %> <% end %> <% end %> </ul> Access image from different view in a view with paperclip gem ruby on rails this said to make the object plural and call a loop, wch shall allow to access the image. it does not work in this case. undefined method `placeholder' for #<Category:0x5c78640> but the amazing thing is, placeholder will be displayed as an array of all images for all the listings if used as suggested in that stackoverflow, wch is, obviously, not the way i prefer. where's the issue? what am i missing?

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• Set default form textfield value (webbrowser control)

  - by Khou

  Hi I would like my application to load a webpage and set default the form textfield value a predefine value. Requirements: -The application is a windows form, it is to use the web browser control, to load a web page. -Textfield values are define by within the application. -When textfield on the webpage matches the applications predefined elements, the predefine fixed value is set and can not be changed by the end user. Example If my application defines element "FirstName" equal to value "John", the text field for value for element "FirstName" will always equal "John" and this value can not be changed by the end user. Below is html/javascript code to perform this functionality, now how do I implement this in a windows form? (without having to modify the loaded webpage source code (if possible). HTML <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <html> <head> <title>page title</title> <script script type="text/javascript" src="demo1.js"></script> </head> <body onload="def(document.someform, 'name', 'my default name value');"> <h2 style="color: #8e9182">test form title</h2> <form name="someform" id="someform_frm" action="#"> <table cellspacing="1"> <tr><td><label for="name">NameX: </label></td><td><input type="text" size="30" maxlength="155" name="name" onchange="def(document.someform, 'name', 'my default name value');"></td></tr> <tr><td><label for="name2">NameY: </label></td><td><input type="text" size="30" maxlength="155" name="name2"></td></tr> <tr><td colspan="2"><input type="button" name="submit" value="Submit" onclick="showFormData(this.form);" ></td></table> </form> </body> </html> JAVASCRIPT function def(oForm, element_name, def_txt) { oForm.elements[element_name].value = def_txt; }

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• How do I output a webpage that contains MathML to PDF?

  - by samiz

  My web application displays MathML embedded in HTML using the MathPlayer plugin. I need to output to PDF. I have PDF components (Dynamic PDF, ABCpdf), but they don't know how to parse the MathML, of course. Is there a library that can help me translate the MathML to an image or something that I can feed to the PDF components on the fly in the web application?

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• How to speed up loading the splash screen.

  - by AngryHacker

  I am optimizing the startup of a WinForms app. One issue I identified is the loading of the splash screen form. It takes about half a second to a second. I know that multi-threading is a no-no on UI pieces, however, seeing how the splash screen is a fairly autonomous piece of the application, is it possible to somehow mitigate its performance hit by throwing it one some other thread (perhaps in the way Chrome does it), so that the important pieces of the application can actually get going.

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• stored procedure in MYsql access in PHP

  - by xcodemaddy

  Hi.. I am creating stored procedure ,here code : CREATE PROCEDURE `dbnm`.`getlogin` ( IN uid INT, IN upass VARCHAR(45) ) BEGIN if exists(select uphno,pass from user_master where uphno=uid and pass=upass)then ***true else ***false end if; END $$ DELIMITER ; i want return value(**true or **false) in stored procedure from PHP by calling sp PHP code: $res = $mysqli->query('call getlogin("1","rashmi")'); how to acesss boolean value in PHP from sp? Thanks

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• Extra arguments for Factory Girl

  - by J. Pablo Fernández

  I need to pass extra arguments to factory girl to be used in a callback. Something like this (but more complex really): Factory.define :blog do |blog| blog.name "Blah" blog.after_create do |blog| blog.posts += sample_posts blog.save! end end and then create it with something like this: Factory.create(:blog, :sample_posts => [post1, post2]) Any ideas how to do it?

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• Grid View as demoed in iPad

  - by Sean Clark Hess

  I'm trying to develop a grid-like application for the iPad. Has anyone seen a control that displays info in a grid? In the demos they use a grid-like layout in both the iBooks store and the pictures application. Specifically in pictures, they are displaying a dynamic list of data in a grid. I can work around it, of course, but I'd rather use a control if one exists. Thanks!

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• How big data can we transfer between iPhone applications

  - by haicnpmk44

  Hello guys I want to use "Custom URL Scheme" to transfer data from application to other application in iPhone. Can I ask: How big data can we transfer from app to app? Thank you!

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• Disabling on screen keyboard

  - by JV

  Hi , I'm working on a j2me application and i'm using j2me polish. when i deploy the application on any touch screen devices like Nokia N97 / Samsung Omnia the on-screen keyboard comes by default. I need to go to the installed applications and disable it everytime i install the applicaton. Is there any way by adding some property in the build.xml to disable the on-screen keyboard.

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