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• Java EE6 App + EJB in Glassfish 3.0/Netbeans 6.8?

  - by egbokul

  Has anyone got this configuration working? Latest Netbeans, latest Glassfish, I created an EJB project, also an EE Application. The EJB in itself builds & deploys to Glassfish OK. Now when I want to reference the EJB, I have to add the EJB jar to the EE Application path, if I don't do this the code does not compile. But, the EJB jar gets packaged in the App jar and as a result when I try to deploy the app to Glassfish it says: "java.lang.IllegalArgumentException: Sniffers with type [ejb] and type [appclient] should not claim the archive at the same time. Please check the packaging of your archive" How do I tell Netbeans NOT TO package the EJB in the App jar? Or is the problem somewhere else? btw. if I remove the EJB manually from the JAR then the app deploys successfully (with asadmin deploy), but when I try to run it with appclient, I get a NullPointerException. Surely there must be a solution to this, I thought Netbeans was for web application development after all...

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• How do I stop cpan from reconfiguring each time? + More

  - by Leonard

  I'm running on a Mac (version 10.6.3) and am struggling to understand what is going on with my Perl installation. I let the system do a copy from my previous mac, and I appear to have a second perl installed, which appears earlier in my path. I can't tell (or remember) if I might have installed it with fink, macports or CPAN or what. type -a cpan cpan is /opt/local/bin/cpan cpan is /usr/bin/cpan I'm seeing two oddities. (To start with!) When I run cpan, and let it configure in ~lcuff/.cpan, each time I run it, it wants to reconfigure, giving the message: Sorry, we have to rerun the configuration dialog for CPAN.pm due to some missing parameters... Also, when I try to install File::Find::Rule (so I can list my CPAN modules, per the FAQ) I end up with an error message that I can't decipher or Google a solution for: Use of inherited AUTOLOAD for non-method Digest::SHA::shaopen() is deprecated at /opt/local/lib/perl5/vendor_perl/5.8.9/darwin-2level/Digest/SHA.pm line 55. Catching error: "Can't locate auto/Digest/SHA/shaopen.al in \@INC (\@INC contains: /sw/lib/perl5 /sw/lib/perl5/darwin /opt/local/lib/perl5/site_perl/5.8.9/darwin-2level /opt/local/lib/perl5/site_perl/5.8.9 /opt/local/lib/perl5/site_perl /opt/local/lib/perl5/vendor_perl/5.8.9/darwin-2level /opt/local/lib/perl5/vendor_perl/5.8.9 /opt/local/lib/perl5/vendor_perl /opt/local/lib/perl5/5.8.9/darwin-2level /opt/local/lib/perl5/5.8.9 /Users/lcuff) at /opt/local/lib/perl5/vendor_perl/5.8.9/darwin-2level/Digest/SHA.pm line 55\cJ" at /opt/local/lib/perl5/5.8.9/CPAN.pm line 359 CPAN::shell() called at /opt/local/bin/cpan line 198

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• Efficient cron job utilizing Zend_Mail_Storage_Imap.

  - by fireeyedboy

  I'm new to the IMAP protocol and Zend_Mail_Storage and I'm writing a small php script for a cron job that should regularly poll an IMAP account and check for new messages, and send an e-mail if new messages have arrived. As you can imagine, I want to only poll the IMAP account for relevant messages, and I only want to send a new e-mail if new messages have arrived since the last polled new message. So I thought of keeping track of the last message I polled with some unique identifier for a message. But I'm a bit uncertain about whether the methods I want to utilize for this do what I expect them to do though. So my questions are: Does the iterator position of Zend_Mail_Storage_Imap actually resemble some IMAP unique identifier for messages, or is it simply only and internal position of Zend_Mail_Storage_Abstract? For instance, if I tell it to seek() to message 5 (which I stored from an earlier session) will it indeed seek to the appropriate message on the IMAP server, even if for instance messages have been deleted since last session? Would keeping track of this latest polled message id in a file suffice for a cron job that, say, polls the account every 5 or 10 minutes? Or is this too naive, and should I be using a database for instance. Or is there maybe a much easier way to keep track of such state with Zend_Mail_Storage_Abstract? Also, do I need to poll every IMAP folder? Or is everything accumulated when I poll INBOX? If you could shed some light on any of these matters, I'ld appreciate it. Thanks in advance.

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• process of connecting RTP with SIP via SDP & land lines

  - by TacB0sS

  Hello to everyone, I have a problem with starting a media session and to combine it with my SIP client. I've designed a recursive SIP client that reuse the same request template to send the next requests to server, according to the acceptable sequences noted in the RFC's, and examples that I read. as far as I could tell the SIP part is working fine registers to server invites, and authenticates. I didn't complete any calls to clients yet because of the content header needs to be filled up (which I didn't yet so I get a 503 from the server which is OK I guess). for a long time I didn't know where to start with the media session, and slowly learned how to use the JMF and I've constructed an object that handles RTP transmitting, now I'm standing at the cross road, on the one hand I have my SIP signaling but it needs the SDP content header to complete the invite, and on the other I have the RTP which is knows how to p2p. For me to complete my design I require your help with the following questions: Is there an easy//a simple//an implemented way to convert the Audio/Video format from the JMF into SDP media headers? or even a generator that I would input all the parameters for the content header, and it would generate a content header fast, or do I have to implement this myself? Once I've finished constructing the SDK and the SIP is up and running and I get an OK response from the server (after ringing and all), how do I start the media session? do I connect p2p according to caller details I send in the SIP invite? If 2 is correct, then how does a connection to land lines would be? does land lines knows that once they send an OK back to server they listen/start RTP session on a specific port? Or did I get everything wrong? :-/ I really appreciate any help I could I get, I looked every where for answers but they are not clear, they ignore question 2 as if it was an obvious thing, but for me it just isn't. Thank in advance, Adam Zehavi.

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• Send Email from worker role (Azure) with attachment in c#

  - by simplyvaibh

  I am trying to send an email(in c#) from worker role(Azure) with an attachment(from blob storage). I am able to send an email but attachment(word document) is blank. The following function is called from worker role. public void sendMail(string blobName) { InitStorage();//Initialize the storage var storageAccount = CloudStorageAccount.FromConfigurationSetting("DataConnectionString"); container = blobStorage.GetContainerReference("Container Name"); CloudBlockBlob blob = container.GetBlockBlobReference(blobName); if (File.Exists("demo.doc")) File.Delete("demo.doc"); FileStream fs = new FileStream("demo.doc", FileMode.OpenOrCreate); blob.DownloadToStream(fs); Attachment attach = new Attachment(fs,"Report.doc"); System.Net.Mail.MailMessage Email = new System.Net.Mail.MailMessage("[email protected]", "[email protected]"); Email.Subject = "Text fax send via email"; Email.Subject = "Subject Of email"; Email.Attachments.Add(attach); Email.Body = "Body of email"; System.Net.Mail.SmtpClient client = new SmtpClient("smtp.live.com", 25); client.DeliveryMethod = SmtpDeliveryMethod.Network; client.EnableSsl = true; client.Credentials = new NetworkCredential("[email protected]", Password); client.Send(Email); fs.Flush(); fs.Close(); Email.Dispose(); } Please tell me where I am doing wrong?

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• Inserting "null" (literally) in to a stored procedure parameter.

  - by Nazadus

  I'm trying to insert the word "Null" (literally) in to a parameter for a stored procedure. For some reason SqlServer seems to think I mean NULL and not "Null". If I do a check for IF @LastName IS NULL // Test: Do stuff Then it bypasses that because the parameter isn't null. But when I do: INSERT INTO Person (<params>) VALUES (<stuff here>, @LastName, <more stuff here>); // LastName is 'Null' It bombs out saying that LastName doesn't accept nulls. I would seriously hate to have this last name, but someone does... and it's bombing the application. We're using SubSonic 2.0 (yeah, it's fairly old but upgrading is painful) as our DAL and stepping through it, I see it does create the parameters properly (for what I can tell). I've tried creating a temp table to see if I could replicate it manually but it seems to work just fine. Here is the example I create: DECLARE @myval VARCHAR(50) SET @myval = 'Null' CREATE TABLE #mytable( name VARCHAR(50)) INSERT INTO #mytable VALUES (@myval) SELECT * FROM #mytable DROP table #mytable Any thoughts on how I can fix this?

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• Circular Dependency of Navigation Control in iPhone

  - by Taimur Hamza

  Hi everyone , In my view this is one of the strangest problem i have ever come across in iPhone app development. Let me explain the scenario , i have main screen 'A' on which i have a Button that directs me to another Screen say 'B'. Now on Screen 'B' i have a feature in which user can send a mail to his friend for promotion purpose e.g a user wishes to tell a frnd about this app so i used MFMailComposeViewController and a view is generated where the user types the address and click send ( subject and body of mail is automatically generated ). After sending the mail a new view opens say screen 'C' and here i want to give the user the options . 1. Go to Screen 'A' ( which is main screen of the app ) 2. Go back to Screen 'B' ( from where the user requested to send a mail to his frnd ). Now the strange part i cannot declare the variables ( Screen 'A' and 'B' ) of both these files here at in header file of screen 'C' . Even when i declare the header file at the top it generates an error. The variables can be easily be declared and used for other screens but not for these 2 screens. Can anybody please explain wats the problem.? this the text of the error "/Users/admin/Documents/AppName/Classes/A.h:42: error: expected specifier-qualifier-list before 'B'" Thanks Guys ! Taimur

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• cakephp secure link using html helper link method..

  - by Aaron

  What's the best way in cakephp to extend the html-link function so that I can tell it to output a secure(https) link? Right now, I've added my own secure_link function to app_helpers that's basically a copy of the link function but adding a https to the beginning. But it seems like there should be a better way of overriding the html-link method so that I can specify a secure option. http://groups.google.com/group/cake-php/browse%5Fthread/thread/e801b31cd3db809a I also started a thread on the google groups and someone suggested doing something like $html->link('my account', array('base' => 'https://', 'controller' => 'users')); but I couldn't get that working. Just to add, this is what is outputted when I have the above code. <a href="/users/index/base:https:/">my account</a> I think there's a bug in the cake/libs/router.php on line 850. There's a keyword 'bare' and I think it should be 'base' Though changing it to base doesn't seem to fix it. From what I gather, it's telling it to exclude those keys that are passed in so that they don't get included as parameters. But I'm puzzled as to why it's a 'bare' keyword and the only reason I can come up with is that it's a type.

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• CAShapeLayer slowing down interface rotation

  - by MrMage

  Hi, I am trying to move some custom drawing code from a view into a CAShapeLayer, which then get added as a sublayer to the original view's CALayer. This also works well, but when rotating the device, the animation starts to stutter, e.g. you just see the frame in the original orientation and then the final orientation, with at most one frame in between - not smooth at all. Slide-in and slide-out animations of the corresponding UIViewController are a bit jerky, too (but not that much). All the CAShapeLayer has in its path is one CGPathAddRect, it is set to be opaque, its opacity is 1.0f and the fillColor is set to opaque blue. When drawing the path directly in the views drawRect method, however, the animation is smooth. So I suppose it has something to do with the CAShapeLayer being animated during the rotation. Could you tell me how to either get rid of those jerkiness or just hide the CAShapeLayer when animating? Getting back to just draw CGPaths directly is not an option to me because I rely on the ability of CAShapeLayer to animate its path (it is not animated in my tries with rotating the view). /update: this also happens when the rotating UIViewControllers view contains a view with a subclass of CAGradientLayer as its layerClass (e.g. a view with a gradient layer as background). Cheers MrMage

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• MS Source Server - source stream is apparently not there when viewing with srctool

  - by Tim Peel

  Hi, I have been playing around with the MS Source Server stuff in the MS Debugging Tools install. At present, I am running my code/pdbs through the Subversion indexing command, which is now running as expected. It creates the stream for a given pdb file and writes it to the pdb file. However when I use that DLL and associated pdb in visual studio 2008, it says the source code cannot be retrieved. If I check the pdb against srctool is says none of the source files contained are indexed, which is very strange as the process prior ran fine. If I check the stream that was generated from the svnindex.cmd run for the pdb, srctool says all source files are indexed. Why would there be a difference? I have opened the pdb file in a text editor and I can see the original references to the source files on my machine (also under the srcsrv header name) and the new "injected" source server links to my subversion repository). Should both references still exist in the pdb? I would have expected one to be removed? Either way, visual studio 2008 will not pick up my source references so I am a bit lost as to what to try next. As far as I can tell, I have done everything I should have. Anyone have similar experiences? Many thanks.

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• No feedback from Socket.SendAsync

  - by BowserKingKoopa

  I'm creating a socket and I'm trying to send data through it using SendAsync. My socket isn't connected to anything so I expected to get an error of some sort. However I get nothing. I get no indication that the send didn't work. If I use the synchronous Send method instead of the asynchronous SendAsync method I get an Exception stating that the socket isn't connected to anything. That makes sense to me. When using SendAsync the completed event doesn't ever fire and I get no indication that the send didn't work. So basically my question is how can I tell when SendAsync fails? Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); SocketAsyncEventArgs args = new SocketAsyncEventArgs(); args.SetBuffer(new byte[0], 0, 0); args.Completed += delegate(object sender, SocketAsyncEventArgs e) { Debug.WriteLine("async send complete"); Debug.WriteLine("SOCKET ERROR: " + e.SocketError); }; bool completedSynchronously = socket.SendAsync(args); if (completedSynchronously) { Debug.WriteLine("sync send complete"); Debug.WriteLine("socket error: " + args.SocketError); }

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• How to make CFileDialog synchronize the displayed filename with the selected extension?

  - by RobH

  We have a class that derives from CFileDialog that overrides the OnTypeChange() method to allow it to change the filename to keep it in synch with the selected extension whenever the user selects a new extension from the filter combobox. (Our filters are set to contain only one extension per filter entry.) Unfortunately, the way we are doing this seems to have been broken by the Vista style dialogue. (We were using SetControlText() to set the filename edit box to the filename with the newly selected extension, but the control ID seems to be different for the Vista style dialogue, and the one that I found using Spy++ works just as well as the old ID (i.e., it doesn't)..) Is there a better way to tell the CFileDialog object to update the filename field to use the new extension when the user selects a new filter? It has to work with the old XP style dialogue as well. Failing that, how to I force the use of the XP style dialogue so that I get my functionality back without the dialogue crashing on me? (I'd rather not go that route if at all possible.) I've found a way to get it to fall back to the XP style. I still want to get the new style dialogue to do what I want though.

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• viewstack causing error 1065 variable not defined issue?

  - by jason

  I've got an flex application where I have a left side TREE control and a viewstack on the right and when someone selects the tree it loads the named viewstack based on the hidden node value of the XML of the tree. But it's throwing a error 1065 variable not defined on a viewstack which worked on the last browser refresh/reload. It's not related to a particular viewstack from what I can tell it just seems to throw the error on certain render events. I've tried to use creationpolicy="all" on the viewstack but it seems to not be of any help. public function treeChanged(event:Event):void { selectedNode=Tree(event.target).selectedItem as XML; //trace(selectedNode.@hidden); //Alert.show([email protected]() + " *"); if([email protected]() == '' || [email protected]() == null){ //Alert.show("NULL !"); return; } mainviewstack.selectedChild = Container(mainviewstack.getChildByName([email protected]())); //Container(mainviewstack.getChildByName(selectedNode.@hidden)); If I add in an alert box before the getchildbyname option the viewstack has time to render and everything works fine, so it leads me to believe the app is not giving it enough time to load the viewstack?

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• Sample twitter application.

  - by Jack

  <?php function updateTwitter($status) { // Twitter login information $username = 'xxxxx'; $password = 'xxxxxx'; // The url of the update function $url = 'http://twitter.com/statuses/update.xml'; // Arguments we are posting to Twitter $postargs = 'status='.urlencode($status); // Will store the response we get from Twitter $responseInfo=array(); // Initialize CURL $ch = curl_init($url); // Tell CURL we are doing a POST curl_setopt ($ch, CURLOPT_POST, true); // Give CURL the arguments in the POST curl_setopt ($ch, CURLOPT_POSTFIELDS, $postargs); // Set the username and password in the CURL call curl_setopt($ch, CURLOPT_USERPWD, $username.':'.$password); // Set some cur flags (not too important) curl_setopt($ch, CURLOPT_VERBOSE, 1); curl_setopt($ch, CURLOPT_NOBODY, 0); curl_setopt($ch, CURLOPT_HEADER, 0); curl_setopt($ch, CURLOPT_FOLLOWLOCATION,1); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); // execute the CURL call $response = curl_exec($ch); // Get information about the response $responseInfo=curl_getinfo($ch); // Close the CURL connection curl_close($ch); // Make sure we received a response from Twitter if(intval($responseInfo['http_code'])==200){ // Display the response from Twitter echo $response; }else{ // Something went wrong echo "Error: " . $responseInfo['http_code']; } } updateTwitter("Just finished a sweet tutorial on http://brandontreb.com"); ?> I get the following output Error: 0 Please help.

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• Eclipse does not refresh project files in package explorer view

  - by EugeneP

  Today I see a strange behaviour of Eclipse 3.5.2 for the first time in 3 months. First, when I run a main function, it runs a previously compiled version. Let's say I press Ctrl+F11 in the window with an open java class and existing main function. Usually it rebuilds the class and runs a new version. Today even if there was a compile mistake, it would run fine. So I guess it does not recompile the class. Next, more strangely, if I intentionally make a mistake in the code and Eclipse underlines those lines in red, still the project Explorer does not mark them as containing errors. They remain of grey color if there were not any errors. First I did not know how to solve this problem. I tried to reopen the project, restart Eclipse and finally reboot the OS. After the tenth attempt, after rebooting, Eclipse said that all project's files are "OUT OF SYNC with the file system". When I pressed "Refresh" - F5 on a project's header name in Project Explorer it finally marked all the files with errors as containing errors and running the main function gave the desired result. An hour of my work passed and this happened again , with the other project. All the same. No marking of files as red, running no matter what old version of class with no compile errors. And since Eclipse does not tell that files are out of sync, simply pressing F5 on a project cannot help. What can you suggest?

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• Regex problem in Java in code sample

  - by JaneNY

  I have job with regex in my expressions: example !(FA1_A.i & FA1_M.i) I have operators ! ( ) & | operands have names [a-zA-Z_]*.[a-zA-Z_] I wrote in Java to split on tokens, but it doesn't split on operators and operands If should be !, (, FA1_A.i, &, FA1_m.i, ) . Can anybody tell me what is wrong ? String stringOpеrator = "([!|&()])"; String stringOperand = "(([a-zA-Z_]*)\\.([a-zA-Z_]*))"; String reg=stringOpеrator+"|"+stringOperand; Pattern pattern = Pattern.compile(reg); Matcher m = pattern.matcher(expression); // System.out.println("func: " + function + " item: " + item); while (m.find()) { int a=m.start(); int b=m.end(); String test=expression.substring(m.start(), m.end()); String g=test; tokens.add(new Token(expression.substring(m.start() , m.end()))); //m = pattern.matcher(expression); }

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• how to save extracted icon in delphi

  - by radick

  hi all I am trying to make icon extractor i am successful in getting icon to image1.picture.icon ,its looking same as orginal file icon, but when i am trying to save (iamge1.picture.icon.savetofile(c:\imahe.ico)) its not saving as it is ,it saving with less colur and looking ugly cany any one please tell me what i am doing wrong ? here is my code procedure TForm1.Button1Click(Sender: TObject); begin OpenDialog1.Filter:='All files |*.*'; OpenDialog1.Title:='Please select file'; if OpenDialog1.Execute then Edit1.Text:=OpenDialog1.FileName; end; procedure TForm1.Button3Click(Sender: TObject); var szFileName: string; Icon: TIcon; SHInfo: TSHFileInfo; begin szFileName := Edit1.Text; if FileExists(Edit1.Text) then begin Icon := TIcon.Create; SHGetFileInfo(PChar(szFileName), 0, SHInfo, SizeOf(SHInfo), SHGFI_ICON); Icon.Handle := SHInfo.hIcon; Image1.Picture.Icon := Icon; end; end; procedure TForm1.Button2Click(Sender: TObject); begin if SaveDialog1.Execute then begin Image1.Picture.Icon.SaveToFile(SaveDialog1.FileName+'.ico'); ShowMessage('done'); end; end;

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• Converting table columns to key value pairs

  - by TomD1

  I am writing a PL/SQL procedure that loads some data from Schema A into Schema B. They are both very different schemas and I can't change the structure of Schema B. Columns in various tables in Schema A (joined together in a view) need to be inserted into Schema B as key=value pairs in 2 columns in a table, each on a separate row. For example, an employee's first name might be present as employee.firstname in Schema A, but would need to be entered in Schema B as: id=>1, key=>'A123', value=>'Smith' There are almost 100 keys, with the potential for more to be added in future. This means I don't really want to hardcode any of these keys. Sample code: create table schema_a_employees ( emp_id number(8,0), firstname varchar2(50), surname varchar2(50) ); insert into schema_a_employees values ( 1, 'James', 'Smith' ); insert into schema_a_employees values ( 2, 'Fred', 'Jones' ); create table schema_b_values ( emp_id number(8,0), the_key varchar2(5), the_value varchar2(200) ); I thought an elegant solution would most likely involve a lookup table to determine what value to insert for each key, and doesn't involve effectively hardcoding dozens of similar statements like.... insert into schema_b_values ( 1, 'A123', v_firstname ); insert into schema_b_values ( 1, 'B123', v_surname ); What I'd like to be able to do is have a local lookup table in Schema A that lists all the keys from Schema B, along with a column that gives the name of the column in the table in Schema A that should be used to populate, e.g. key "A123" in Schema B should be populated with the value of the column "firstname" in Schema A, e.g. create table schema_a_lookup ( the_key varchar2(5), the_local_field_name varchar2(50) ); insert into schema_a_lookup values ( 'A123', 'firstname' ); insert into schema_a_lookup values ( 'B123', 'surname' ); But I'm not sure how I could dynamically use values from the lookup table to tell Oracle which columns to use. So my question is, is there an elegant solution to populate schema_b_values table with the data from schema_a_employees without hardcoding for every possible key (i.e. A123, B123, etc)? Cheers.

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• Using .NET XmlSerializer with get properties and setter functions

  - by brone

  I'm trying to use XmlSerializer from C# to save out a class that has some values that are read by properties (the code being just a simple retrieval of field value) but set by setter functions (since there is a delegate called if the value changes). What I'm currently doing is this sort of thing. The intended use is to use the InT property to read the value, and use SetInT to set it. Setting it has side-effects, so a method is more appropriate than a property here. XmlSerializationOnly_InT exists solely for the benefit of the XmlSerializer (hence the name), and shouldn't be used by normal code. class X { public double InT { get { return _inT; } } public void SetInT(double newInT) { if (newInT != _inT) { _inT = newInT; Changed();//includes delegate call; potentially expensive } } private double _inT; // not called by normal code, as the property set is not just a simple // field set or two. [XmlElement(ElementName = "InT")] public double XmlSerializationOnly_InT { get { return InT; } set { SetInT(value); } } } This works, it's easy enough to do, and the XML file looks like you'd expect. It's manual labour though, and a bit ugly, so I'm only somewhat satisfied. What I'd really like is to be able to tell the XML serialization to read the value using the property, and set it using the setter function. Then I wouldn't need XmlSerializationOnly_InT at all. I seem to be following standard practise by distinguishing between property sets and setter functions in this way, so I'm sure I'm not the only person to have encountered this (though google suggests I might be). What have others done in this situation? Is there some easy way to persuade the XmlSerializer to handle this sort of thing better? If not, is there perhaps some other easy way to do it?

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• Error while splitting application context file in spring

  - by Krupal

  I am trying to split the ApplicationContext file in Spring. For ex. the file is testproject-servlet.xml having all the entries. Now I want to split this single file into multiple files according to logical groups like : group1-services.xml, group2-services.xml I have created following entries in web.xml : <servlet> <servlet-name>testproject</servlet-name> <servlet-class> org.springframework.web.servlet.DispatcherServlet </servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value> /WEB-INF/group1-services.xml, /WEB-INF/group2-services.xml </param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> I am using SimpleUrlHandlerMapping as: RegisterController PayrollServicesController I also have the controller defined as : .. .. The problem is that I have splitted the ApplicationContext file "testproject-servlet.xml" into two different files and I have kept the above entries in "group1-services.xml". Is it fine? I want to group things logically based on their use in seperate .xml files. But I am getting the following error when I try to access a page inside the application : org.springframework.web.servlet.DispatcherServlet noHandlerFound WARNING: No mapping for [/TestProject/payroll_services.htm] in DispatcherServlet with name 'testproject' Please tell me how to resolve it. Thanks in Advance !

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• Need help in resolving a compiler error: error: invalid conversion from ‘int’ to ‘GIOCondition’

  - by michael

  I have a simple cpp file which uses GIO. I have stripped out everything to show my compile error: Here is the error I get: My.cpp:16: error: invalid conversion from ‘int’ to ‘GIOCondition’ make[2]: *** [My.o] Error 1 Here is the complete file: #include <glib.h> static gboolean read_socket (GIOChannel *gio, GIOCondition condition, gpointer data) { return false; } void createGIOChannel() { GIOChannel* gioChannel = g_io_channel_unix_new(0); // the following is the line causing the error: g_io_add_watch(gioChannel, G_IO_IN|G_IO_HUP, read_socket, NULL); } I have seen other example using gio, and I am doing the same thing in term of calling G_IO_IN|G_IO_HUP. And the documentation http://www.gtk.org/api/2.6/glib/glib-IO-Channels.html, said I only need to include , which I did. Can you please tell me how to resolve my error? One thing I can think of is I am doing this in a cpp file. But g_io_add_watch is a c function? Thank you for any help. I have spent hours on this but did not get anywhere.

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• Objective-C NSArray NEWBIE Question:

  - by clearbrian

  Hi I have a weird problems with NSArray where some of the members of the objects in my array are going out of scope but not the others: I have a simple object called Section. It has 3 members. @interface Section : NSObject { NSNumber *section_Id; NSNumber *routeId; NSString *startLocationName; } @property(nonatomic,retain) NSNumber *section_Id; @property(nonatomic,retain) NSNumber *routeId; @property(nonatomic,retain) NSString *startLocationName; @end @implementation Section @synthesize section_Id; @synthesize routeId; @synthesize startLocationName; //Some static finder methods to get list of Sections from the db + (NSMutableArray *) findAllSections:{ - (void)dealloc { [section_Id release]; [routeId release]; [startLocationName release]; [super dealloc]; } @end I fill it from a database in a method called findAllSection self.sections = [Section findAllSections]; In find all sections I create some local variables fill them with data from db. NSNumber *secId = [NSNumber numberWithInt:id_section]; NSNumber *rteId = [NSNumber numberWithInt:id_route]; NSString *startName = @""; Then create a new Section and store these local variable's data in the Section Section *section = [[Section alloc] init]; section.section_Id = secId; section.routeId = rteId; section.startLocationName = startName; Then I add the section to the array [sectionsArray addObject:section]; Then I clean up, releasing local variables and the section I added to the array [secId release]; [rteId release]; [startName release]; [locEnd_name release]; [section release]; In a loop repeat for all Sections (release local variables and section is done in every loop) The method returns and I check the array and all the Sections are there. I cant seem to dig further down to see the values of the Section objects in the array (is this possible) Later I try and retrieve one of the Sections I get it from the array Section * section = [self.sections objectAtIndex:row]; Then check the value NSLog(@" SECTION SELECTED:%@",section.section_Id); BUT call to section.section_Id crashed as section.section_Id is out of scope. I check the other members of this Section object and theyre ok. After some trial and error I find that by commenting out the release of the member variable the object is OK. //[secId release]; [rteId release]; [startName release]; [locEnd_name release]; [section release]; My questions are: Am I cleaning up ok? Should I release the object added to an array and the local variable in the function? Is my dealloc ok in Section? Does this code look ok and should I be looking elsewhere for the problem? I'm not doing anything complicated just filling array from DB use it in Table Cell. If its a stupid mistake then tell me (I did put NEWBIE on the question so dont be shocked it was asked) I can comment out the release but would prefer to know why or if code looks ok then ill need further digging. the only place that secId is released is in the dealloc. Thanks

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• How do I set YUI2 paginator to select a page other than the first page?

  - by Jeremy Weathers

  I have a YUI DataTable (YUI 2.8.0r4) with AJAX pagination. Each row in the table links to a details/editing page and I want to link from that details page back to the list page that includes the record from the details page. So I have to a) offset the AJAX data correctly and b) tell YAHOO.widget.Paginator which page to select. According to my reading of the YUI API docs, I have to pass in the initialPage configuration option. I've attempted this, but it doesn't take (the data from AJAX is correctly offset, but the paginator thinks I'm on page 1, so clicking "next" takes me from e.g. page 6 to page 2. What am I not doing (or doing wrong)? Here's my DataTable building code: (function() { var columns = [ {key: "retailer", label: "Retailer", sortable: false, width: 80}, {key: "publisher", label: "Publisher", sortable: false, width: 300}, {key: "description", label: "Description", sortable: false, width: 300} ]; var source = new YAHOO.util.DataSource("/sales_data.json?"); source.responseType = YAHOO.util.DataSource.TYPE_JSON; source.responseSchema = { resultsList: "records", fields: [ {key: "url"}, {key: "retailer"}, {key: "publisher"}, {key: "description"} ], metaFields: { totalRecords: "totalRecords" } }; var LoadingDT = function(div, cols, src, opts) { LoadingDT.superclass.constructor.call( this, div, cols, src, opts); // hide the message tbody this._elMsgTbody.style.display = "none"; }; YAHOO.extend(LoadingDT, YAHOO.widget.DataTable, { showTableMessage: function(msg) { $('sales_table_overlay').clonePosition($('sales_table').down('table')). show(); }, hideTableMessage: function() { $('sales_table_overlay').hide(); } }); var table = new LoadingDT("sales_table", columns, source, { initialRequest: "startIndex=125&results=25", dynamicData: true, paginator: new YAHOO.widget.Paginator({rowsPerPage: 25, initialPage: 6}) }); table.handleDataReturnPayload = function(oRequest, oResponse, oPayload) { oPayload.totalRecords = oResponse.meta.totalRecords; return oPayload; }; })();

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• Modify Executing Jar file

  - by pinkynobrain

  Hello Stack Overflow friends. I have a simple problem which i fear doesnt have a simple solution and i need advice as to how to proceed. I am developing a java application packaged as and executable JAR but it requires to modify some of its JAR file contents during execution. At this stage i hit a problem because some OS lock the file preventing writes to it. It is essential that the user sees an updated version of the jar file by the time the application exits allthough i can be pretty flexible as to how to achieve this. A clean and efficient solution is obviously prefereable but portability is the only hard requirement. The following are three approaches i can see to solving the problem, feel free to comment on them or suggest others. Tell Java to unlock the JAR file for writing(this doesnt seem possible but it would be the easyest solution) Copy the executable class files to a tempory file on application startup, use a class loader to load these files and unload the ones from the initial JAR file.(Not had much experience with the classloaders but hopefully the JVM would then be smart enough to realize that the original JAR is nolonger in use and so unlock it) Put a Second executable JAR File inside the First, on startup extract the inner jar to e temporaryfile, invoke a new java process and pass it the location of the Outer JAR, first process exits, second process modifys the Outer jar unincumbered.(This will work but im not sure there is a platform independant way of one java app invoking another) I know this is a weird question but any help would be appreciated.

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• NullPointerException in javax.swing.text.SimpleAttributeSet.addAttribute

  - by Paul Reiners

  Has anyone ever seen an exception like this?: ERROR: java.lang.NullPointerException: null at java.util.Hashtable.put(null:-1) at javax.swing.text.SimpleAttributeSet.addAttribute(null:-1) at javax.swing.text.SimpleAttributeSet.addAttributes(null:-1) at javax.swing.text.StyledEditorKit.createInputAttributes(null:-1) at javax.swing.text.StyledEditorKit$AttributeTracker.updateInputAttributes(null:-1) at javax.swing.text.StyledEditorKit$AttributeTracker.caretUpdate(null:-1) at javax.swing.text.JTextComponent.fireCaretUpdate(null:-1) at javax.swing.text.JTextComponent$MutableCaretEvent.fire(null:-1) at javax.swing.text.JTextComponent$MutableCaretEvent.mouseReleased(null:-1) at java.awt.AWTEventMulticaster.mouseReleased(null:-1) at java.awt.AWTEventMulticaster.mouseReleased(null:-1) at java.awt.Component.processMouseEvent(null:-1) at javax.swing.JComponent.processMouseEvent(null:-1) at java.awt.Component.processEvent(null:-1) at java.awt.Container.processEvent(null:-1) at java.awt.Component.dispatchEventImpl(null:-1) at java.awt.Container.dispatchEventImpl(null:-1) at java.awt.Component.dispatchEvent(null:-1) at java.awt.LightweightDispatcher.retargetMouseEvent(null:-1) at java.awt.LightweightDispatcher.processMouseEvent(null:-1) at java.awt.LightweightDispatcher.dispatchEvent(null:-1) at java.awt.Container.dispatchEventImpl(null:-1) at java.awt.Window.dispatchEventImpl(null:-1) at java.awt.Component.dispatchEvent(null:-1) at java.awt.EventQueue.dispatchEvent(null:-1) at java.awt.EventDispatchThread.pumpOneEventForFilters(null:-1) at java.awt.EventDispatchThread.pumpEventsForFilter(null:-1) at java.awt.EventDispatchThread.pumpEventsForHierarchy(null:-1) at java.awt.EventDispatchThread.pumpEvents(null:-1) at java.awt.EventDispatchThread.pumpEvents(null:-1) at java.awt.EventDispatchThread.run(null:-1) I wish I could tell you an easy way to reproduce this, but I can’t. It’s happening in a Java Swing application I maintain. It happens infrequently and the application is quite complex. I know it’s a bit of a long shot just showing this stack trace, but I thought I’d try.

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