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  • How to get decent MySQL driver perfomance in Ruby

    - by Zombies
    I notice that I am getting very poor performance for either or both inserts and queries. The queries themselves are basic and can execute with no delay directly from mysql. The ruby script that I wrote is only 1 thread, so only 1 connection is being used, and never closed unless the script is terminated. Pretty basic, I am just trying to insert a lot of rows. There is a look-up or two to get a surrogate key, or to check for duplicates, but the complexity is just O(n). Also, it isn't like there are millions of records, so again the queries themselves take no time to run. I am using: Ruby 1.9.1 Gem/driver:ruby-mysql 2.9.2 MySQL 5.1.37-1ubuntu5.1 ^ all 32 bit versions on a 32bit ubuntu distro I am getting about 1-2 inserts per second, pretty slow. I know a lot of people will suggest to change drivers, but that means I have some refactoring and resting to do. So I would really appreciate any help, but please if you do recomend that at least say why you do (eg: if you have used ruby-mysql x.x.x before and found another mysql driver to be better).ruby-mysql 2.9.2 What I would like to know: How can I improve performance with ruby-mysql 2.9.2 If and only if I cannot do this with ruby-mysql 2.9.2, what should I do?

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  • JBoss 5.1 binds to host address while run in vserver with -b <guest address>

    - by bart cane
    Hello, while starting JBoss 5.1.0.GA in virtual server machine on Debian (linux-VServer technology) I get the following error: ERROR [org.jboss.kernel.plugins.dependency.AbstractKernelController] (main) Error installing to Start: name=jboss.remoting:protocol=rmi,service=JMXConnectorServer state=Create mode=Manual requiredState=Installed java.io.IOException: Cannot bind to URL [rmi://10.1.2.11:1090/jmxconnector]: javax.naming.NoPermissionException [Root exception is java.rmi.ServerException: RemoteException occurred in server thread; nested exception is: java.rmi.AccessException: Registry.Registry.bind disallowed; origin /AA.BB.CC.DD is non-local host] where AA.BB.CC.DD is host machine name, 10.1.2.11 is vserver guest with JBoss and JBoss is started with -b 10.1.2.11 (I also tried -Djboss.bind.address=10.1.2.11 - the same result). 10.1.2.11 is bound to dummy2 interface on host (serving 10.1.2.1 network). The root exception is strange - why JBoss wants to bind to host address AA.BB.CC.DD? There were no problems with 4.2.3.GA on the same machine, also started with -b 10.1.2.11. It starts correctly when no params present - binds to localhost and everything is ok, but it MUST be bound to 10.1.2.11 to be visible by Apache on another vserver guest, acting as proxy. I thought that it can be fixed by setting net.ipv4.conf.all.promote_secondaries=1 via sysctl (was 0) but it didn't help much. Has anyone had such problem? Regards, bart

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  • WPF Background Thread Invocation

    - by jeffn825
    Maybe I'm mis-remembering how Winforms works or I'm overcomplicating the hell out of this, but here's my problem. I have a WPF client app application that talks to a server over WCF. The current user may "log out" of the WPF client, which closes all open screens, leaves only the navigation pane, and minimizes the program window. When the user re-maximizes the program window, they are prompted to log in. Simple. But sometimes things happen on background threads - like every 5 minutes the client tries to make a WCF calls that refreshes some cached data. And what if the user is logged out when this 5 minute timer triggers? Well, then the user should be prompted to log back in...and this must of course happen on the UI thread. private static ISecurityContext securityContext; public static ISecurityContext SecurityContext { get { if (securityContext == null) { // Login method shows a window and prompts the user to log in Application.Current.Dispatcher.Invoke((Action)Login); } return securityContext; } } So far so good, right? But what happens when multiple threads hit this spot of code? Well, my first intuition was that since I'm syncrhonizing across the Application.Current.Dispatcher, I should be fine, and whichever thread hit first would be responsible for showing the login form and getting the user logged in... Not the case... Thread 1 will hit the code and call ShowDialog on the login form Thread 2 will also hit the code and will call Login as soon as Thread 1 has called ShowDialog, since calling ShowDialog unblocked Thread 1 (I believe because of the way the WPF message pump works) All I want is a synchronized way of getting the user logged back into the application...what am I missing here? Thanks in advance.

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  • how to pass password text while calling java-cxf webservice from php

    - by Darpan Desai
    hi, i have developed my webservice in java-cxf which returns java.util.List. This webservice is password enabled. that means i have used org.apache.cxf.ws.security.wss4j.WSS4JInInterceptor for security purpose. Now i want to call this webservice from php. but i am not able to do so. Without security settings i am able to access my webservice using nusoap. but when i enabled security feture (interceptor) in webservice, i am getting error like ns1:InvalidSecurity An error was discovered processing the header and i am getting response as follows: HTTP/1.1 500 Internal Server Error Server: Apache-Coyote/1.1 Content-Type: text/xml;charset=ISO-8859-1 Content-Length: 361 Date: Fri, 18 Jun 2010 08:53:54 GMT Connection: close < soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"< soap:Body< soap:Fault< faultcode xmlns:ns1="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd" ns1:InvalidSecurity< /faultcode< faultstringAn error was discovered processing the <wsse:Security header< /faultstring< /soap:Fault< /soap:Body any help will be appriciated thanks in advance Darpan Desai

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  • Using NSURLRequest to pass key-value pairs to PHP script with POST

    - by Ralf Mclaren
    Hi, I'm fairly new to objective-c, and am looking to pass a number of key-value pairs to a PHP script using POST. I'm using the following code but the data just doesn't seem to be getting posted through. I tried sending stuff through using NSData as well, but neither seem to be working. NSDictionary* data = [NSDictionary dictionaryWithObjectsAndKeys: @"bob", @"sender", @"aaron", @"rcpt", @"hi there", @"message", nil]; NSURL *url = [NSURL URLWithString:@"http://myserver.com/script.php"]; NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url]; [request setHTTPMethod:@"POST"]; [request setHTTPBody:[NSData dataWithBytes:data length:[data count]]]; NSURLResponse *response; NSError *err; NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&err]; NSLog(@"responseData: %@", content); This is getting sent to this simple script to perform a db insert: <?php $sender = $_POST['sender']; $rcpt = $_POST['rcpt']; $message = $_POST['message']; //script variables include ("vars.php"); $con = mysql_connect($host, $user, $pass); if (!$con) { die('Could not connect: ' . mysql_error()); } mysql_select_db("mydb", $con); mysql_query("INSERT INTO php_test (SENDER, RCPT, MESSAGE) VALUES ($sender, $rcpt, $message)"); echo "complete" ?> Any ideas?

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  • How to create mobile substrate plugins on XCode?

    - by prathumca
    Hi Everyone, I just wanna create a MS plugin to hook SpringBoard. I'm following "gojohnnyboi" tutorial from here "http://www.ipodtouchfans.com/forums/showthread.php?t=103558". To create a dylib on XCode, I'm following "SkylarEC" tutorial. I mix these two great tutorials and finally got succeed by getting a dylib. But when I placed the dylib in the /Library/MobileSubstrate/DynamicLibraries/ nothing is happened (no alert was shown). By evaluating, I found that, this dylib doesn't have any starting point when it was loaded into the memory. So I mentioned a starting point by declaring a constructor in the .mm file like, __ attribute__((constructor)) static void init() { Class _$SBAppIcon = objc_getClass("SBApplicationIcon"); MSHookMessage($SBAppIcon, @selector(launch), (IMP) &_$ExampleHook_AppIcon_Launch, "_OriginalMethodPrefix"); } But when I'm trying to compile this, I'm getting an error like, Undefined symbols: "_MSHookMessage", referenced from: init() in ExampleHook.o ld: symbol(s) not found collect2: ld returned 1 exit status. Does anyone has idea how to solve this? It would be great and more helpful if anyone share the detailed tutorial/instructions to create a dylib on XCode. P.S I placed all the libsubstrate.dylib and substrate.h files in the corresponding location. And the locations are, libsubstrate.dylib : /Developer/Platforms/iPhoneOS.platform/Developer/usr/lib/ substrate.h : /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.0.sdk/usr/include and my base SDK is 3.0.

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  • Confused with an ASP.NET/WCF WSDL Parsing Error

    - by Vaccano
    I have a WCF Web Service that my ASP.NET app uses. It has been working fine for quite some time. I just added in a Dev Express Grid (and the Dev Express DLLs) and a new page that uses them and now I am getting parsing errors on the WSDL. But the weird part is that it works fine on my machine but fails on the web server machine. (Both are connecting to the same web services WSDL.) Here is the error message I am getting: Server Error in '/MyWebAppWebDev' Application. -------------------------------------------------------------------------------- Parser Error Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately. Parser Error Message: Reference.svcmap: Failed to generate code for the service reference 'MyWebAppService'. Cannot import wsdl:portType Detail: An exception was thrown while running a WSDL import extension: System.ServiceModel.Description.DataContractSerializerMessageContractImporter Error: Referenced type 'WebClientApp.MyWebAppService.ReferenceUpdatesDataContract, WebClientApp, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' with data contract name 'ReferenceUpdatesDataContract' in namespace 'http://schemas.datacontract.org/2004/07/MyWebAppServiceLibrary.DataContracts' cannot be used since it does not match imported DataContract. Need to exclude this type from referenced types. XPath to Error Source: //wsdl:definitions[@targetNamespace='http://tempuri.org/']/wsdl:portType[@name='IMyWebAppReferenceDataServiceLib'] Cannot import wsdl:binding Detail: There was an error importing a wsdl:portType that the wsdl:binding is dependent on. XPath to wsdl:portType: //wsdl:definitions[@targetNamespace='http://tempuri.org/']/wsdl:portType[@name='IMyWebAppReferenceDataServiceLib'] XPath to Error Source: //wsdl:definitions[@targetNamespace='http://tempuri.org/']/wsdl:binding[@name='MyWebAppServicesDefaultEndpoint'] Cannot import wsdl:port Detail: There was an error importing a wsdl:binding that the wsdl:port is dependent on. XPath to wsdl:binding: //wsdl:definitions[@targetNamespace='http://tempuri.org/']/wsdl:binding[@name='MyWebAppServicesDefaultEndpoint'] XPath to Error Source: //wsdl:definitions[@targetNamespace='http://tempuri.org/']/wsdl:service[@name='MyWebAppReferenceDataServiceLib']/wsdl:port[@name='MyWebAppServicesDefaultEndpoint'] Source Error: [No relevant source lines] Source File: /MyWebAppWebDev/App_WebReferences/MyWebAppService/ Line: 1 I am completely stumped on this. I have checked my web.config endpoint address and it is spot on (and notably is not in the error message above). Any ideas would be welcomed.

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  • JAVA Regular Expression Errors

    - by Berkay
    I'm working on a simply password strength checker and i can not success applying regular expressions. In different resources different kinds of regular expressions are defined. i also find javascript regular expressions but had some problems to adapt. First, these are the regular expressions i need for JAVA: at least one lower case letter at least one upper case letter at least one number at least three numbers at least one special character at least two special characters both letters and numbers both upper and lower case letters, numbers, and special characters My goal is not being a regular expression expert i just want to use the parts i need.If you direct me good tutorials which discusses above for java, will be appreciated. Second, in this link some of them are mentioned but i'm getting problems to apply them. here does not catch the lower case letter (my pass: A5677a) if (passwd.matches("(?=.*[a-z])")) // [verified] at least one lower case letter {Score = Score+5;} Also here i'm getting error : illegal escape character. if (passwd.matches("(?=.*\d)")) // [verified] at least one number Finally, are these expressions all different in different kind of programming or script languages?

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  • method for specialized pathfinding?

    - by rlbond
    I am working on a roguelike in my (very little) free time. Each level will basically be a few rectangular rooms connected together by paths. I want the paths between rooms to be natural-looking and windy, however. For example, I would not consider the following natural-looking: B X X X XX XX XX AXX I really want something more like this: B X XXXX X X X X AXXXXXXXX These paths must satisfy a few properties: I must be able to specify an area inside which they are bounded, I must be able to parameterize how windy and lengthy they are, The lines should not look like they started at one path and ended at the other. For example, the first example above looks as if it started at A and ended at B, because it basically changed directions repeatedly until it lined up with B and then just went straight there. I was hoping to use A*, but honestly I have no idea what my heuristic would be. I have also considered using a genetic algorithm, but I don't know how practical that method might end up. My question is, what is a good way to get the results I want? Please do not just specify a method like "A*" or "Dijkstra's algorithm," because I also need help with a good heuristic.

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  • A process serving application pool 'X' reported a failure. The process id was 'Y'. The data field c

    - by born to hula
    I have a WCF Web Service which is kept under an Application Pool on IIS. Lately I've been getting "Service Unavaiable" when I'm trying to make calls to this Web Service. The first thing I tried to do was restarting the Application Pool. I did it and after a couple of seconds, it crashed and stopped. Looking at the Event Viewer, I found these messages, which by the moment couldn't help me to find where the problem is. A process serving application pool 'X' reported a failure. The process id was '11616'. The data field contains the error number. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. After getting a couple of these, I got this one: Application pool 'X' is being automatically disabled due to a series of failures in the process(es) serving that application pool. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. I've already checked permissions and Application Pool configurations but everything seems to be OK. Have anyone been through this? Thanks in advance.

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  • XAML Deserialization problem

    - by mrwayne
    Hi, I have a block of XAML of which i'm trying to deserialize. For arguments sake lets say it looks like below. <NS:SomeObject> <NS:SomeObject.SomeProperty> <NS:SomeDifferentObject SomeOtherProp="a value"/> </NS:SomeObject.SomeProperty> </NS:SomeObject> Of which i deserialise using the following code. XamlReader.Load( File.OpenRead( @"c:\SomeFile.xaml")) I have 2 solutions, one i use Unit Testing, and another i have for my web application. When i'm using the unit testing solution, it deserializes fine and works as expected. However, when i try to deserialize using my other project i keep getting an exception like the following. 'NameSpace.SomeObject' value cannot be assigned to property 'SomeProperty' of object 'NameSpace.SomeObject'. Object of Type 'NameSpace.SomeObject' cannot be converted to type 'NameSpace.SomeObject'. It's as if it is getting confused or instantiating 2 different types of objects? Note, i do not have similarly named classes or any sort of namespace conflict. The same codes executes fine in one solution and not the other. The same project files are referenced in both. Please help!

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  • Can't get any speedup from parallelizing Quicksort using Pthreads

    - by Murat Ayfer
    I'm using Pthreads to create a new tread for each partition after the list is split into the right and left halves (less than and greater than the pivot). I do this recursively until I reach the maximum number of allowed threads. When I use printfs to follow what goes on in the program, I clearly see that each thread is doing its delegated work in parallel. However using a single process is always the fastest. As soon as I try to use more threads, the time it takes to finish almost doubles, and keeps increasing with number of threads. I am allowed to use up to 16 processors on the server I am running it on. The algorithm goes like this: Split array into right and left by comparing the elements to the pivot. Start a new thread for the right and left, and wait until the threads join back. If there are more available threads, they can create more recursively. Each thread waits for its children to join. Everything makes sense to me, and sorting works perfectly well, but more threads makes it slow down immensely. I tried setting a minimum number of elements per partition for a thread to be started (e.g. 50000). I tried an approach where when a thread is done, it allows another thread to be started, which leads to hundreds of threads starting and finishing throughout. I think the overhead was way too much. So I got rid of that, and if a thread was done executing, no new thread was created. I got a little more speedup but still a lot slower than a single process. The code I used is below. http://pastebin.com/UaGsjcq2 Does anybody have any clue as to what I could be doing wrong?

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  • Unmanaged DLL in C# Web Service

    - by Telis
    Hi Guys, please help µe as I am new into accessing an unmanaged DLL from C#.. I have a large unmanaged DLL in C++ and I am trying to access the DLL's classes and functions from a C# Web Service. I have seen many examples how to use DLLImport, but for some reason I am stuck with my very first wrapper method spending many hours with no luck.. What should I do to return an object in my 'Marshaled' [DllImport..] function? I would like to do something like that: [DllImport("unmanaged.dll")] public static extern MyClass MyFunction(); Here is the definition of my C++ class and the function that I want to access: class __declspec(dllexport) TPDate { public: TPDate(); TPDate(const TPDate& rhs); ... //today's date. static TPDate AsOfDate(void); ... } In my Web service I have declared the following StructLayout: [StructLayout(LayoutKind.Sequential)] public class TPDate { public TPDate(TPDate d) { _tpDate = d; } public TPDate _tpDate; } and here's where I think that I'm not doing something right: class WrapperTPDate { [DllImport("TPTools.dll", ExactSpelling=false, EntryPoint = "?AsOfDate@TPDate@@SA?AV1@XZ", CallingConvention = CallingConvention.StdCall)] [return: MarshalAs(UnmanagedType.Struct)] **public static extern TPDate AsOfDate();**// HERE THERE IS PROBLEM }; I am calling the wrapper as follows from my WebMethod: [WebMethod] public void ConstructModel() { TPDate date1 = WrapperTPDate.AsOfDate();// Here I get exception TPDate date = new TPDate(date1); } The exception i am getting is: System.Web.Services.Protocols.SoapException: Server was unable to process request. ---> System.Runtime.InteropServices.MarshalDirectiveException: Cannot marshal 'return value': Invalid managed/unmanaged type combination (this type must be paired with LPStruct or Interface). If I change it to LPSTRUCT, I am getting another exception: System.Web.Services.Protocols.SoapException: Server was unable to process request. ---> System.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt Could you please tell me where I'm doing wrong here Thanks

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  • Creating Signed URLs for Amazon CloudFront

    - by Zack
    Short version: How do I make signed URLs "on-demand" to mimic Nginx's X-Accel-Redirect behavior (i.e. protecting downloads) with Amazon CloudFront/S3 using Python. I've got a Django server up and running with an Nginx front-end. I've been getting hammered with requests to it and recently had to install it as a Tornado WSGI application to prevent it from crashing in FastCGI mode. Now I'm having an issue with my server getting bogged down (i.e. most of its bandwidth is being used up) due to too many requests for media being made to it, I've been looking into CDNs and I believe Amazon CloudFront/S3 would be the proper solution for me. I've been using Nginx's X-Accel-Redirect header to protect the files from unauthorized downloading, but I don't have that ability with CloudFront/S3--however they do offer signed URLs. I'm no Python expert by far and definitely don't know how to create a Signed URL properly, so I was hoping someone would have a link for how to make these URLs "on-demand" or would be willing to explain how to here, it would be greatly appreciated. Also, is this the proper solution, even? I'm not too familiar with CDNs, is there a CDN that would be better suited for this?

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  • How to create offline OLAP cube in C#?

    - by jimmyjoe
    I have a problem with creating an offline OLAP cube from C# using following code: using (var connection = new OleDbConnection()) { connection.ConnectionString = "Provider=MSOLAP; Initial Catalog=[OCWCube]; Data Source=C:\\temp\\test.cub; CreateCube=CREATE CUBE [OCWCube] ( DIMENSION [NAME], LEVEL [Wszystkie] TYPE ALL, LEVEL [NAME], MEASURE [Liczba DESCRIPTIO] FUNCTION COUNT ); InsertInto=INSERT INTO OCWCube([Liczba DESCRIPTIO], [NAME].[NAME]) OPTIONS ATTEMPT_ANALYSIS SELECT Planners.DESCRIPTIO, Planners.NAME FROM Planners Planners; Source_DSN=\"CollatingSequence=ASCII;DefaultDir=c:\\temp;Deleted=1;Driver={Microsoft dBase Driver (*.dbf)};DriverId=277;FIL=dBase IV;MaxBufferSize=2048;MaxScanRows=8;PageTimeout=600;SafeTransactions=0;Statistics=0;Threads=3;UserCommitSync=Yes;\";Mode=Write;UseExistingFile=True"; try { connection.Open(); } catch (OleDbException e) { Console.WriteLine(e); } } I keep on getting the following exception: "Multiple-step operation generated errors. Check each OLE database status value. No action was taken." I took the connection string literally from OQY file generated by Excel. I had to add "Mode=Write" section, otherwise I was getting another exception ("file may be in use"). What is wrong with the connection string? How to diagnose the error? Somebody please guide me...

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  • Advice needed on best and most efficient practices with developing google apps application...

    - by Ali
    Hi guys , I'm getting my feet wet with developing my order management applications for integration with google apps. However there are certain aspects I need to take into consideration prior to proceeding any further. My application is such that it would upload documents to google documents and store contacts in google contacts. It requires such that a single order can have a number of uploaded documents associated with it as well as some contacts associated with it. MY question however is what would be the most efficient way to implement this. I could keep key tables for both contacts and documents which woudl contain just an ID and link to the documents/contacts or their respective identification id on google. Or I could maintain an exact replica of the information on my own database as well as a link to the contact on google. However won't that be too redundant. I don't want my application to be really slow as I'm afraid that everytime I make a call to google docs to retrieve a list of documents or google contacts it would be really slow on my application - or am I getting worried for no reason? Any advice would be most appreciated.

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  • Selenium RC throws sessionsid should not be null exception with assertTextPresent, phpunit 3.4 bug o

    - by user342775
    I am looking to migrate my selenium RC tests to using PHPUnit 3.4.12 from PHPUnit 3.3.2 The selenium test will fail with an exception of the following when I use assertTextPresent() PHPUnit_Framework_Exception: Response from Selenium RC server for getLocation(). ERROR Server Exception: sessionId should not be null; has this session been started yet?. For example: public function testSending($browser) { ... $browser->click("send"); $browser->waitForPageToLoad("30000"); $browser->assertTextPresent("text"); } Below is the selenium RC log (running on Windows): 15:40:19.676 INFO - Command request: isTextPresent[text, ] on session 153d03a123c42098711994f43c2db34 15:40:19.691 INFO - Got result: OK,false on session 153d023a123c42098711994f43cdb34 15:40:19.879 INFO - Command request: testComplete[, ] on session 153d023a123c4298711994f43c2db34 15:40:19.879 INFO - Killing Firefox... 15:40:20.269 INFO - Got result: OK on session 153d023a123c42098711994f43c2db34 15:40:20.472 INFO - Command request: getLocation[, ] on session null 15:40:20.472 ERROR - Exception running 'getLocation 'command on session null java.lang.NullPointerException: sessionId should not be null; has this session been started yet? As you can see, the test should have completed as indicated by the "Killing Firefox" bit, but it instead continued to do something else and triggered the getLocation[, ] command which caused the exception. I have tried the same test with PHPUnit 3.3.2 which did not produce this problem - the test would happily end without the getLocation(). Any ideas? thanks

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  • Using T4 templates to add custom code to EF4 generated entities?

    - by David Veeneman
    I am getting started with Entity Framework 4, using model-first development. I am building a simple WPF demo app to learn the framework. My app has two entities, Topic and Note. A Topic is a discussion topic; it has Title, Text, and DateRevised properties. Topic also has a Notes collection property. a Note has DateCreated and Text properties. I have used EF4 to create an EDM and data store for the app. Now I need to add just a bit of intelligence to the entities. For example, the property setter for the Topic.Text property needs to update the Topic.DateRevised property, and a Note needs to set its DateCreated property when it is instantiated--pretty simple stuff. I assume that I can't modify the generated classes directly, because my code would be lost if the entities are re-generated. Is this the sort of thing that I can implement by modifying the T4 template that EF4 uses to generate the entities? In other words, can a T4 template be modified to add my code for performing these tasks to the entities that it generates? Can you refer me to a good tutorial or explanation of how to get started? Most of what I have found so far talks about how to add a tt file to an EDM, so I can do that. What I am looking for is a resource that I can use to get to the next level, assuming that a T4 template can be used to customize generated entities as I have described. Thanks for your help.

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  • How to move to next textfield using keyboardtype numberandpunctuation using textfield notification

    - by Rani
    Hi guys, I am having code ItemsController.h UITextField* quantity; UITextField* rate; UITextField* tax2; ItemController.m quantity=[[UITextField alloc]initWithFrame:CGRectMake(158,10.5,140,30)]; quantity.textColor = [UIColor blackColor]; quantity.font = [UIFont systemFontOfSize:15.0]; quantity.backgroundColor = [UIColor clearColor]; quantity.returnKeyType=UIReturnKeyNext; quantity.keyboardType = UIKeyboardTypeNumbersAndPunctuation; quantity.leftViewMode = UITextFieldViewModeAlways; quantity.delegate = self; rate=[[UITextField alloc]initWithFrame:CGRectMake(158,10.5,140,30)]; rate.textColor = [UIColor blackColor]; rate.font = [UIFont systemFontOfSize:15.0]; rate.backgroundColor = [UIColor clearColor]; rate.returnKeyType=UIReturnKeyNext; rate.keyboardType = UIKeyboardTypeNumbersAndPunctuation; rate.leftViewMode = UITextFieldViewModeAlways; rate.delegate = self; tax2=[[UITextField alloc]initWithFrame:CGRectMake(158,10.5,140,30)]; tax2.textColor = [UIColor blackColor]; tax2.font = [UIFont systemFontOfSize:15.0]; tax2.backgroundColor = [UIColor clearColor]; tax2.returnKeyType=UIReturnKeyDone; tax2.keyboardType = UIKeyboardTypeAlphabet; tax2.leftViewMode = UITextFieldViewModeAlways; tax2.delegate = self; - (BOOL)textFieldShouldReturn:(UITextField*)textField { if(textField==quantity) { [rate becomeFirstResponder]; } if(textField == rate) { [tax2 becomeFirstResponder]; } else if(textField==tax2) { [textField resignFirstResponder]; } return YES; } Using UITextfield notifications while I am moving from quantity textfield to rate textfield the keyboard type is alphabetical its getting actually I gav eit has Number and punctuation why I am not getting. can any one help me to solve this as soon as possible. Thanks in advance.

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  • Issues in Convergence of Sequential minimal optimization for SVM

    - by Amol Joshi
    I have been working on Support Vector Machine for about 2 months now. I have coded SVM myself and for the optimization problem of SVM, I have used Sequential Minimal Optimization(SMO) by Mr. John Platt. Right now I am in the phase where I am going to grid search to find optimal C value for my dataset. ( Please find details of my project application and dataset details here http://stackoverflow.com/questions/2284059/svm-classification-minimum-number-of-input-sets-for-each-class) I have successfully checked my custom implemented SVM`s accuracy for C values ranging from 2^0 to 2^6. But now I am having some issues regarding the convergence of the SMO for C 128. Like I have tried to find the alpha values for C=128 and it is taking long time before it actually converges and successfully gives alpha values. Time taken for the SMO to converge is about 5 hours for C=100. This huge I think ( because SMO is supposed to be fast. ) though I`m getting good accuracy? I am screwed right not because I can not test the accuracy for higher values of C. I am actually displaying number of alphas changed in every pass of SMO and getting 10, 13, 8... alphas changing continuously. The KKT conditions assures convergence so what is so weird happening here? Please note that my implementation is working fine for C<=100 with good accuracy though the execution time is long. Please give me inputs on this issue. Thank You and Cheers.

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  • ASP.Net 2.0 VB WebSite Project "Type 'Exception' is not defined"

    - by AtlSteve
    All of a sudden our VB ASP.Net 2.0 WebSite Project started complaining that Exception was not defined. I have discovered that if I add "Imports System" to the header, or explicitly use System.Exception that it works, but this error permeates a lot of other System descendants like the Data namespace, and the DateTime object. We have hundreds and hundreds of pages, so adding Imports System to all of them not only would be time consuming, but it seems like a band-aid fix to the problem. I have checked the Project-Property Pages-References, and the web.config file, and the assembly is imported into the project, it is just not being "Auto Imported" into the Class Files like it USUALLY is. Note this does not JUST affect CodeBehind, but All className.vb files. I would like to fix this problem, but more importantly would like to understand what could cause the System namespace to all of a sudden stop being auto imported. There is obviously some file change that caused this, as my co-worker started seeing the problem this morning after he did a Full-Get on the project. MORE: The Web.Config file located in the Windows\Microsoft.Net...\Config\Web.Config file does have the , and System is added. Adding the tags, and adding System to the LOCAL web.config did nothing to mitigate the problem. Any help would be appreciated. First SO Question, so I hope I was descriptive enough.

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  • delphi 2010 variant to unicode problem

    - by Crudler
    Please advise how I can achieve this. I am working in a dll in delphi 2010. This dll has a exported procedure that receives an array of variants. I want to be able to take one of these variants, and convert it into a string, but i keep getting ????? I cannot change the input variable - it HAS to be an array of variants. The host app that calls the dll cannot be changed. It is written in Delphi2006. sample dll's code is: Procedure TestArr(ArrUID : array of variant);stdcall; var i : integer; s:string; begin s:= string(String(Arruid[0])); showmessage(s); end; obviously in D2006 my dll works fine. I have tried using VartoStr - no luck. When I try test the VaType I am getting a varString Any suggestions?

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  • Windows 7 64 Bit - ODBC32 - Legacy App Problem

    - by Arturo Caballero
    Good day StackOverFlowlers, I´m a little stuck (really stuck) with an issue with a legacy application on my organization. I have a Windows 7 Enterprise 64 Bit machine, Access 2000 Installed and the Legacy App (Is built with something like VB but older) The App uses System ODBC in order to connect to a SQL 2000 DataBase on a Remote Server. I created the ODCB using C:\Windows\SysWOW64\odbcad32.exe app in order to create a System DSN. I did not use the Windows 7 because it is not visible to the Legacy App. I tested the ODBC connection with Access and worked ok, I can access the remote database. Then I run the legacy App as Administrator and the App can see the ODBC, but I´m getting errors on credential validation and I´m getting this error: DIAG [08001] [Microsoft][ODBC SQL Server Driver][Multi-Protocol]SQL Server does not exist or access denied. (17) DIAG [01000] [Microsoft][ODBC SQL Server Driver][Multi-Protocol]ConnectionOpen (Connect()). (53) DIAG [IM006] [Microsoft][ODBC Driver Manager] Driver's SQLSetConnectAttr failed (0) I use Trusted Connection on the ODBC in order to validate the user by Domain Controller. I think that the credentials are not being sent by the Legacy App to the ODBC, or something like that. I don´t have the source code of the Legacy App in order to debug the connection. Also, I turned off the Firewall. Any ideas?? Thanks in advance!

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  • CS Master's Degree Project vs. Thesis options

    - by Nwosh
    I'm doing a master's degree in computer science, and I'm currently at the point where I have to decide between the thesis and non-thesis options offered by my university. The thesis option was my first choice, it entails taking less courses but tends to take more time doing your thesis. The non-thesis option involves taking more coursework, taking a comprehensive exam, and doing a project in one semester with a faculty member. I'd like to pursue a PhD degree eventually (although not right away, I want to get some years of professional experience first), and I heard that having demonstrated the ability to work on a thesis helps a lot with admission (like: not doing thesis raises questions and suggests not being interested in research) and that the experience itself is very good. At the same time, almost everyone I know who did a thesis at my university took a long time (2-3 years), in theory it could be done in 1.5 years. I'm a part time student and I don't really want to spend so much time just getting a master's degree, I could still publish a few papers while working on the project option and I'd be done in a year or so, additionally, I heard having a master's degree with a project and more coursework is more desirable for the industry. So, when applying for a PhD degree in CS at some of the better universities, would the time spent working on the master's thesis help in getting me accepted? Or should I opt for the non-thesis option and hope that the extra coursework and publishing some papers would make up for not working on a thesis?

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  • Receive MMS images and make album using iamge using j2me

    - by Abdul Basit
    I am trying to made application which receive MMS images and make a album from them user can view the pictures while running this application. I am facing problem while running application on mobile. while this application is fully working in wireless tookit emulator. Please guide me to fix this problem.`//package hello; import javax.microedition.midlet.; import javax.microedition.lcdui.; import javax.wireless.messaging.*; import java.io.IOException; import java.util.Vector; import javax.microedition.io.Connector; import javax.microedition.lcdui.Display; //, ItemStateListener public class MMSS extends MIDlet implements CommandListener, Runnable, MessageListener { //-----------------------------------Receive MMS --------------------------- private Thread mReceiver = null; private boolean mEndNow = false; private Message msg = null; String msgReceived = null; private Image[] receivedImage = new Image[5]; private Command mExitCommand = new Command("Exit", Command.EXIT, 2); private Command mRedCommand = new Command("Back", Command.SCREEN, 1); private Command mBlueCommand = new Command("Next", Command.SCREEN, 1); private Command mPlay = new Command("Play", Command.SCREEN, 1); protected static final String DEFAULT_IMAGE = "/MMSS_logo.jpg"; //protected static final String DEFAULT_IMAGE = "/wait.png"; private Display mDisplay = null; //protected ImageItem mColorSquare = null; protected Image mInitialImage = null; private String mAppID = "MMSMIDlet"; private TextField imageName = null; //private Form mForm = null; private int count = 0; private int next = 0; private Integer mMonitor = new Integer(0); //----------------------------------- End Receive MMS --------------------------- private boolean midletPaused = false; private Command exitCommand; private Command exitCommand1; private Command backCommand; private Form form; private StringItem stringItem; private ImageItem imageItem; private Image image1; private Alert alert; private List locationList; private Alert cannotAddLocationAlert; public MMSS() { } /** * Initilizes the application. * It is called only once when the MIDlet is started. The method is called before the startMIDlet method. */ private void initialize() { } /** * Performs an action assigned to the Mobile Device - MIDlet Started point. */ public void startMIDlet() { // write pre-action user code here switchDisplayable(null, getForm()); // write post-action user code here } /** * Performs an action assigned to the Mobile Device - MIDlet Resumed point. */ public void resumeMIDlet() { } /** * Switches a current displayable in a display. The display instance is taken from getDisplay method. This method is used by all actions in the design for switching displayable. * @param alert the Alert which is temporarily set to the display; if null, then nextDisplayable is set immediately * @param nextDisplayable the Displayable to be set / public void switchDisplayable(Alert alert, Displayable nextDisplayable) {//GEN-END:|5-switchDisplayable|0|5-preSwitch // write pre-switch user code here Display display = getDisplay();//GEN-BEGIN:|5-switchDisplayable|1|5-postSwitch if (alert == null) { display.setCurrent(nextDisplayable); } else { display.setCurrent(alert, nextDisplayable); } } /* * Called by a system to indicated that a command has been invoked on a particular displayable. * @param command the Command that was invoked * @param displayable the Displayable where the command was invoked */ public void commandAction(Command command, Displayable displayable) { // write pre-action user code here if (displayable == form) { if (command == exitCommand) { // write pre-action user code here exitMIDlet(); // write post-action user code here } } // write post-action user code here } /** * Returns an initiliazed instance of exitCommand component. * @return the initialized component instance */ public Command getExitCommand() { if (exitCommand == null) { // write pre-init user code here exitCommand = new Command("Exit", Command.EXIT, 0); // write post-init user code here } return exitCommand; } /** * Returns an initiliazed instance of form component. * @return the initialized component instance */ public Form getForm() { if (form == null) { // write pre-init user code here form = new Form("Welcome to MMSS", new Item[] { getStringItem(), getImageItem() }); form.addCommand(getExitCommand()); form.setCommandListener(this); // write post-init user code here } return form; } /** * Returns an initiliazed instance of stringItem component. * @return the initialized component instance */ public StringItem getStringItem() { if (stringItem == null) { // write pre-init user code here stringItem = new StringItem("Hello", "Hello, World!"); // write post-init user code here } return stringItem; } /** * Returns an initiliazed instance of exitCommand1 component. * @return the initialized component instance / public Command getExitCommand1() { if (exitCommand1 == null) { // write pre-init user code here exitCommand1 = new Command("Exit", Command.EXIT, 0); // write post-init user code here } return exitCommand1; } /* * Returns an initiliazed instance of imageItem component. * @return the initialized component instance */ public ImageItem getImageItem() { if (imageItem == null) { // write pre-init user code here imageItem = new ImageItem("imageItem", getImage1(), ImageItem.LAYOUT_CENTER | Item.LAYOUT_TOP | Item.LAYOUT_BOTTOM | Item.LAYOUT_VCENTER | Item.LAYOUT_EXPAND | Item.LAYOUT_VEXPAND, "");//GEN-LINE:|26-getter|1|26-postInit // write post-init user code here } return imageItem; } /** * Returns an initiliazed instance of image1 component. * @return the initialized component instance */ public Image getImage1() { if (image1 == null) { // write pre-init user code here try { image1 = Image.createImage("/B.jpg"); } catch (java.io.IOException e) { e.printStackTrace(); } // write post-init user code here } return image1; } /** * Returns a display instance. * @return the display instance. */ public Display getDisplay () { return Display.getDisplay(this); } /** * Exits MIDlet. */ public void exitMIDlet() { switchDisplayable (null, null); destroyApp(true); notifyDestroyed(); } /** * Called when MIDlet is started. * Checks whether the MIDlet have been already started and initialize/starts or resumes the MIDlet. */ public void startApp() { if (midletPaused) { resumeMIDlet (); } else { initialize (); startMIDlet (); } midletPaused = false; /////////////////////////////////////////////////////////////////////// /////////////////////////////////////////////////////////////////////// try { conn = (MessageConnection) Connector.open("mms://:" + mAppID); conn.setMessageListener(this); } catch (Exception e) { System.out.println("startApp caught: "); e.printStackTrace(); } if (conn != null) { startReceive(); } /////////////////////////////////////////////////////////////////////// /////////////////////////////////////////////////////////////////////// } /** * Called when MIDlet is paused. */ public void pauseApp() { midletPaused = true; mEndNow = true; try { conn.setMessageListener(null); conn.close(); } catch (IOException ex) { System.out.println("pausetApp caught: "); ex.printStackTrace(); } } /** * Called to signal the MIDlet to terminate. * @param unconditional if true, then the MIDlet has to be unconditionally terminated and all resources has to be released. */ public void destroyApp(boolean unconditional) { mEndNow = true; try { conn.close(); } catch (IOException ex) { System.out.println("destroyApp caught: "); ex.printStackTrace(); } } private void startReceive() { mEndNow = false; //---- Start receive thread mReceiver = new Thread(this); mReceiver.start(); } protected MessageConnection conn = null; protected int mMsgAvail = 0; // -------------------- Get Next Images ------------------------------------ private void getMessage() { synchronized(mMonitor) { mMsgAvail++; mMonitor.notify(); } } // -------------------- Display Images Thread ------------------------------ public void notifyIncomingMessage(MessageConnection msgConn) { if (msgConn == conn) getMessage(); } public void itemStateChanged(Item item) { throw new UnsupportedOperationException("Not supported yet."); } class SetImage implements Runnable { private Image img = null; public SetImage(Image inImg) { img = inImg; } public void run() { imageItem.setImage(img); imageName.setString(Integer.toString(count)); } } public void run() { mMsgAvail = 0; while (!mEndNow) { synchronized(mMonitor) { // Enter monitor if (mMsgAvail <= 0) try { mMonitor.wait(); } catch (InterruptedException ex) { } mMsgAvail--; } try { msg = conn.receive(); if (msg instanceof MultipartMessage) { MultipartMessage mpm = (MultipartMessage)msg; MessagePart[] parts = mpm.getMessageParts(); if (parts != null) { for (int i = 0; i < parts.length; i++) { MessagePart mp = parts[i]; byte[] ba = mp.getContent(); receivedImage[count] = Image.createImage(ba, 0, ba.length); } Display.getDisplay(this).callSerially(new SetImage(receivedImage[count])); } } } catch (IOException e) { System.out.println("Receive thread caught: "); e.printStackTrace(); } count++; } // of while } } `

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