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  • SQL Server CE - Internal error: Cannot open the shared memory region

    - by blu
    I have a SQL Server CE database that works fine in dev, but when installed on the client has an issue. The SQL Server CE 3.5 dependencies are copied as part of the deployment. The target machine is a clean Windows 7 32-bit Ultimate image. The message for the exception in the event log is: Internal error: Cannot open the shared memory region. It looks like this is SSCE_M_CANTOPENSHAREDMEMORY and the site says there isn't a connection string value to change this and that these issues are typically not resolvable by the end developers. Has anyone run into this, and if so were you able to resolve this issue?

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  • Roadmap to Android development

    - by Matthew
    Hello, I've done a little research, and am interested in developing for Android. I've never programmed before, and have no idea how to go from zero experience to developing for a mobile device. My interest is in eventually making some sort of 2d game. Is there a lesson plan for starting from the ground up? I would think one would need to learn the Java language to start. Looking at the Sun website, it's a bit daunting. Is there a book, specifically, that would wrap up this knowledge in a bit of a directed lesson plan? I'm not sure if opengl-es is what would be required for 2d games. I've done a little research on this, and it's even far more daunting than Java itself. I can't even begin to figure out where to start with even just opengl, sans -es. My best guess would be that I need further knowledge in Java to continue with this, but even still, is it possible to learn concurrently with Java?

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  • Entity Frameworks 4 - Changing the model does not update the T4 self tracking template files

    - by Darren
    I am using self tracking entities and have moved the entity classes to another assembly by using 'Add as link' to point to the TT file as mentioned here. Now though, when I update the model (for instance change a property name) the template is not automatically run and so the entity class does not get updated. I can of course manually run the template to get the updates, but it would be easier if it ran automatically in the way it did before I moved the classes. Is there any way to achieve this? Darren.

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  • very large image manipulation and tiling

    - by Mohammad
    I need to a software , Program(Java),or a method for tiling very larg images (more than 140MB). I have used imagemagic and convert tools photoshop and corel draw and matlab (in win os) but I have problem with memory amount.and memory is not enough.imagemagic is very slow and result is not desirable. I dont know how can i only load a small part of image on hard disk to RAM .(with out load whole image from hard)

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  • How do I run JUnit from NetBeans?

    - by FarmBoy
    I've been trying to understand how to start writing and running JUnit tests. When I'm reading this article: http://junit.sourceforge.net/doc/testinfected/testing.htm I get the the middle of the page and they write, "JUnit comes with a graphical interface to run tests. Type the name of your test class in the field at the top of the window. Press the Run button." I don't know how to launch this program. I don't even know which package it is in, or how you run a library class from an IDE. Being stuck, I tried this NetBeans tutorial: http://www.netbeans.org/kb/docs/java/junit-intro.html It seemed to be going OK, but then I noticed that the menu options for this tutorial for testing a Java Class Library are different from those for a regular Java application, or for a Java Web App. So the instructions in this tutorial don't apply generally. I'm using NetBeans 6.7, and I've imported JUnit 4.5 into the libraries folder. What would be the normal way to run JUnit, after having written the tests? The JUnit FAQ describes the process from the Console, and I'm willing to do that if that is what is typical, but given all that I can do inside netbeans, it seems hard to believe that there isn't an easier way. Thanks much. EDIT: If I right-click on the project and select "Test" the output is: init: deps-jar: compile: compile-test: test-report: test: BUILD SUCCESSFUL (total time: 0 seconds) This doesn't strike me as the desired output of a test, especially since this doesn't change whether the test condition is true or not. Any ideas?

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  • How to return model state from child action handler in ASP.NET MVC

    - by Joe Future
    In my blog engine, I have one controller action that displays blog content, and in that view, I call Html.RenderAction(...) to render the "CreateComment" form. When a user posts a comment, the post is handled by the comment controller (not the blog controller). If the comment data is valid, I simply return a Redirect back to the blog page's URL. If the comment data is invalid (e.g. comment body is empty), I want to return the ViewData with the error information back to the blog controller and through the blog view to the CreateComment action/view so I can display which fields are bad. I have this working fine via AJAX when Javascript is enabled, but now I'm working on the case where Javascript might be disabled. If I return a RedirecToAction or Redirect from the comment controller, the model state information is lost. Any ideas?

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  • Why Do Browsers Leak Memory?

    - by Dane Balia
    A colleague and I were speaking about browsers (using browser control in a project), and it appears as plain as day that all browsers (Firefox, Chrome, IE, Opera) display the same characteristic or side-effect from their usage and that being 'Leaking Memory'. Can someone explain why that is the case? Surely as with any form of code, there should be proper garbage collection? PS. I've read about some defensive patterns on why this can happen from a developer's perspective. I am aware of an article Crockford wrote on IE; but why is the problem symptomatic of every browser? Thanks

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  • Problem in In-App purchase-consumable model

    - by kunal-dutta
    I have created a nonconsumable in app purchase item and now I want to create a consumable in-app purchase by which a user to buy it every time he uses it,and also I want to create a subscription model In-App purchase. Everything works as expected except when I buy the item more than one time, iPhone pop ups a message saying "You've already purchased the item. Do You want to buy it again?". Is It possible to disable this dialog and proceed to the actual purchase?And what will have to change in following code with different model:- in InApp purchase manager.m: @implementation InAppPurchaseManager //@synthesize purchasableObjects; //@synthesize storeObserver; @synthesize proUpgradeProduct; @synthesize productsRequest; //BOOL featureAPurchased; //BOOL featureBPurchased; //static InAppPurchaseManager* _sharedStoreManager; // self (void)dealloc { //[_sharedStoreManager release]; //[storeObserver release]; [super dealloc]; } (void)requestProUpgradeProductData { NSSet *productIdentifiers = [NSSet setWithObject:@"com.vigyaapan.iWorkOut1" ]; productsRequest = [[SKProductsRequest alloc] initWithProductIdentifiers:productIdentifiers]; productsRequest.delegate = self; [productsRequest start]; // we will release the request object in the delegate callback } pragma mark - pragma mark SKProductsRequestDelegate methods (void)productsRequest:(SKProductsRequest *)request didReceiveResponse:(SKProductsResponse *)response { //NSArray *products = response.products; //proUpgradeProduct = [products count] == 1 ? [[products firstObject] retain]: nil; if (proUpgradeProduct) { NSLog(@"Product title: %@", proUpgradeProduct.localizedTitle); NSLog(@"Product description: %@", proUpgradeProduct.localizedDescription); NSLog(@"Product price: %@", proUpgradeProduct.price); NSLog(@"Product id:%@", proUpgradeProduct.productIdentifier); } /*for (NSString invalidProductId in response.invalidProductIdentifiers) { NSLog(@"Invalid product id: %@" , invalidProductId); }/ //finally release the reqest we alloc/init’ed in requestProUpgradeProductData [productsRequest release]; [[NSNotificationCenter defaultCenter] postNotificationName:kInAppPurchaseManagerProductsFetchedNotification object:self userInfo:nil]; } pragma - pragma Public methods /* call this method once on startup*/ (void)loadStore { /* restarts any purchases if they were interrupted last time the app was open*/ [[SKPaymentQueue defaultQueue] addTransactionObserver:self]; /* get the product description (defined in early sections)*/ [self requestProUpgradeProductData]; } /* call this before making a purchase*/ (BOOL)canMakePurchases { return [SKPaymentQueue canMakePayments]; } /* kick off the upgrade transaction*/ (void)purchaseProUpgrade { SKPayment *payment = [SKPayment paymentWithProductIdentifier:@"9820091347"]; [[SKPaymentQueue defaultQueue] addPayment:payment]; } pragma - pragma Purchase helpers /* saves a record of the transaction by storing the receipt to disk*/ (void)recordTransaction:(SKPaymentTransaction )transaction { if ([transaction.payment.productIdentifier isEqualToString:kInAppPurchaseProUpgradeProductId]) { / save the transaction receipt to disk*/ [[NSUserDefaults standardUserDefaults] setValue:transaction.transactionReceipt forKey:@"proUpgradeTransactionReceipt" ]; [[NSUserDefaults standardUserDefaults] synchronize]; } } /* enable pro features*/ (void)provideContent:(NSString )productId { if ([productId isEqualToString:kInAppPurchaseProUpgradeProductId]) { / enable the pro features*/ [[NSUserDefaults standardUserDefaults] setBool:YES forKey:@"isProUpgradePurchased" ]; [[NSUserDefaults standardUserDefaults] synchronize]; } } (void)finishTransaction:(SKPaymentTransaction )transaction wasSuccessful:(BOOL)wasSuccessful { // / remove the transaction from the payment queue.*/ [[SKPaymentQueue defaultQueue] finishTransaction:transaction]; NSDictionary *userInfo = [NSDictionary dictionaryWithObjectsAndKeys:transaction, @"transaction" , nil]; if (wasSuccessful) { /* send out a notification that we’ve finished the transaction*/ [[NSNotificationCenter defaultCenter]postNotificationName:kInAppPurchaseManagerTransactionSucceededNotification object:self userInfo:userInfo]; } else { /* send out a notification for the failed transaction*/ [[NSNotificationCenter defaultCenter] postNotificationName:kInAppPurchaseManagerTransactionFailedNotification object:self userInfo:userInfo]; } } (void)completeTransaction:(SKPaymentTransaction *)transaction { [self recordTransaction:transaction]; [self provideContent:transaction.payment.productIdentifier]; [self finishTransaction:transaction wasSuccessful:YES]; } (void)restoreTransaction:(SKPaymentTransaction *)transaction { [self recordTransaction:transaction.originalTransaction]; [self provideContent:transaction.originalTransaction.payment.productIdentifier]; [self finishTransaction:transaction wasSuccessful:YES]; } (void)failedTransaction:(SKPaymentTransaction )transaction { if (transaction.error.code != SKErrorPaymentCancelled) { / error!/ [self finishTransaction:transaction wasSuccessful:NO]; } else { / this is fine, the user just cancelled, so don’t notify*/ [[SKPaymentQueue defaultQueue] finishTransaction:transaction]; } } (void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray *)transactions { for (SKPaymentTransaction *transaction in transactions) { switch (transaction.transactionState) { case SKPaymentTransactionStatePurchased: [self completeTransaction:transaction]; break; case SKPaymentTransactionStateFailed: [self failedTransaction:transaction]; break; case SKPaymentTransactionStateRestored: [self restoreTransaction:transaction]; break; default: break; } } } @end in SKProduct.m:- @implementation SKProduct (LocalizedPrice) - (NSString *)localizedPrice { NSNumberFormatter *numberFormatter = [[NSNumberFormatter alloc] init]; [numberFormatter setFormatterBehavior:NSNumberFormatterBehavior10_4]; [numberFormatter setNumberStyle:NSNumberFormatterCurrencyStyle]; [numberFormatter setLocale:self.priceLocale]; NSString *formattedString = [numberFormatter stringFromNumber:self.price]; [numberFormatter release]; return formattedString; }

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  • Out of memory with multi images in one picturebox

    - by Nikom
    Hi, ive problem with out of memory when im trying load few images into one picturebox. Pls Help :) public void button2_Click(object sender, EventArgs e) { FolderBrowserDialog dialog = new FolderBrowserDialog(); dialog.ShowDialog(); string selected = dialog.SelectedPath; string[] imageFileList = Directory.GetFiles(selected); int iCtr = 0,zCtr = 0; foreach(string imageFile in imageFileList) { if (Image.FromFile(imageFile) != null) { Image.FromFile(imageFile).Dispose(); } PictureBox eachPictureBox = new PictureBox(); eachPictureBox.Size = new Size(100,100); // if (iCtr % 8 == 0) //{ // zCtr++; // iCtr = 0; //} eachPictureBox.Location = new Point(iCtr * 100 + 1, 1); eachPictureBox.Image = Image.FromFile(imageFile); iCtr++; panel1.Controls.Add(eachPictureBox); } }`enter code here`

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  • Django Auth Model Issue - AUTH_USER_MODEL Not Installed

    - by Ian Warner
    Trying to debug this error with getting a Django project running ImproperlyConfigured: AUTH_USER_MODEL refers to model 'accounts.User' that has not been installed Running python manage.py migrate Must iterate i am in no way a python or django expert - I have simply inherited someone elses project that I am trying to get running for the team here. I have followed steps to install postgres required modules including south creating database for postgres Any help appreciated on how to debug this. settings/base.py contains INSTALLED_APPS = DJANGO_APPS + THIRD_PARTY_APPS + LOCAL_APPS LOCAL_APPS = ( 'apps.core', 'apps.accounts', 'apps.project_tool', 'apps.internal', 'apps.external', ) so apps.accounts exits - but it asks for AUTH_USER_MODEL = 'accounts.User' - should it be AUTH_USER_MODEL = 'apps.accounts.User'?

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  • ASN1 out of memory. during a signedCMS.decode

    - by JL
    I am having a problem using the signedCMS.decode routine. See the code below. The error seems to occur when the file size is too big in this case 11MB. private static void RemoveZfoSignature(string zfoFileName) { byte[] fileContents = File.ReadAllBytes(zfoFileName); var contentInfo = new ContentInfo(fileContents); var signedCms = new SignedCms(contentInfo); // This line throws the error 100% of the time signedCms.Decode(fileContents); signedCms.RemoveSignature(0); byte[] outfile = signedCms.ContentInfo.Content; string outFileName = zfoFileName.Replace(".zfo", "_tmp.zfo"); File.WriteAllBytes(outFileName, outfile); } Here is the exact error: "System.Security.Cryptography.CryptographicException: ASN1 out of memory. at System.Security.Cryptography.Pkcs.SignedCms.OpenToDecode(Byte[] encodedMessage, ContentInfo contentInfo, Boolean detached) at System.Security.Cryptography.Pkcs.SignedCms.Decode(Byte[] encodedMessage) at ConsoleApplication2.Program.RemoveZfoSignature(String zfoFileName) in C:\\Users\\\\Documents\\Visual Studio 2008\\Projects\\ConsoleApplication2\\ConsoleApplication2\\Program.cs:line 30" Any idea on how to fix this?

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  • Production settings file for log4j?

    - by James
    Here is my current log4j settings file. Are these settings ideal for production use or is there something I should remove/tweak or change? I ask because I was getting all my threads being hung due to log4j blocking. I checked my open file descriptors I was only using 113. # ***** Set root logger level to WARN and its two appenders to stdout and R. log4j.rootLogger=warn, stdout, R # ***** stdout is set to be a ConsoleAppender. log4j.appender.stdout=org.apache.log4j.ConsoleAppender # ***** stdout uses PatternLayout. log4j.appender.stdout.layout=org.apache.log4j.PatternLayout # ***** Pattern to output the caller's file name and line number. log4j.appender.stdout.layout.ConversionPattern=%5p [%t] (%F:%L) - %m%n # ***** R is set to be a RollingFileAppender. log4j.appender.R=org.apache.log4j.RollingFileAppender log4j.appender.R.File=logs/myapp.log # ***** Max file size is set to 100KB log4j.appender.R.MaxFileSize=102400KB # ***** Keep one backup file log4j.appender.R.MaxBackupIndex=5 # ***** R uses PatternLayout. log4j.appender.R.layout=org.apache.log4j.PatternLayout log4j.appender.R.layout.ConversionPattern=%p %t %d %c - %m%n #set httpclient debug levels log4j.logger.org.apache.component=ERROR,stdout log4j.logger.httpclient.wire=ERROR,stdout log4j.logger.org.apache.commons.httpclient=ERROR,stdout log4j.logger.org.apache.http.client.protocol=ERROR,stdout UPDATE*** Adding thread dump sample from all my threads (100) "pool-1-thread-5" - Thread t@25 java.lang.Thread.State: BLOCKED on org.apache.log4j.spi.RootLogger@1d45a585 owned by: pool-1-thread-35 at org.apache.log4j.Category.callAppenders(Category.java:201) at org.apache.log4j.Category.forcedLog(Category.java:388) at org.apache.log4j.Category.error(Category.java:302)

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  • Remote JMS connection still using localhost

    - by James
    I have a created a JMS Connection Factory on a remote glassfish server and want to use that server from a java client app on my local machine. I have the following configuration to get the context and connection factory: Properties env = new Properties(); env.setProperty("java.naming.factory.initial", "com.sun.enterprise.naming.SerialInitContextFactory"); env.setProperty("java.naming.factory.url.pkgs", "com.sun.enterprise.naming"); env.setProperty("java.naming.factory.state", "com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl"); env.setProperty("org.omg.CORBA.ORBInitialHost", JMS_SERVER_NAME); env.setProperty("org.omg.CORBA.ORBInitialPort", "3700"); initialContext = new InitialContext(env); TopicConnectionFactory topicConnectionFactory = (TopicConnectionFactory) initialContext.lookup("jms/MyConnectionFactory"); topicConnection = topicConnectionFactory.createTopicConnection(); topicConnection.start(); This seems to work and when I delete the ConnectionFactory from the glassfish server I get a exception indicating that is can't find jms/MyConnectionFactory as expected. However when I subsequently use my topicConnection to get a topic it tries to connect to localhost:7676 (this fails as I am not running glassfish locally). If I dynamically create a topic: TopicSession pubSession = topicConnection.createTopicSession(false, Session.AUTO_ACKNOWLEDGE); Topic topic = pubSession.createTopic(topicName); TopicPublisher publisher = pubSession.createPublisher(topic); Message mapMessage = pubSession.createTextMessage(message); publisher.publish(mapMessage); and the glassfish server is not running locally I get the same connection refused however, if I start my local glassfish server the topics are created locally and I can see them in the glassfish admin console. In case you ask I do not have jms/MyConnectionFactory on my local glassfish instance, it is only available on the remote server. I can't see what I am doing wrong here and why it is trying to use localhost at all. Any ideas? Cheers, James

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  • Sharing memory among YACC, Lex, and C files

    - by sczizzo
    I have a YACC (Bison) grammar, a Lex (Flex) tokenizer, and a C program among which I need to share a struct (or really any variable). Currently, I declare the actual object in the grammar file and extern it wherever I need it (which is to say, my C source file), usually using a pointer to manipulate it. I have a shared header (and implementation) file between the C file and the grammar file with functions useful for manipulating my data structure. This works, but it feels a little uncomfortable. Is there a better way to share memory between the grammar and program?

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  • SQLSTATE[HY000]: General error: 5 Out of memory (Needed 4194092 bytes)

    - by Jon Reeks
    Hi I'm receiving the following error on my shared hosting box: SQLSTATE[HY000]: General error: 5 Out of memory (Needed 4194092 bytes) This error is only triggered on a specific page. I guess this indicates that I am reaching the upper limit of the 64MB allocated to me in my current MySQL environment. Does this mean that a single query is going over (returning) 64MB of data? If so, i guess i can just track down and tune that specific query? Or isnt that the correct approach? Thanks Jon

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  • Custom ValidationAttribute test against whole model

    - by griegs
    I know this is probably not possible but let's say I have a model with two properties. I write a ValidationAttribute for one of the properties. Can that VA look at the other property and make a decision? So; public class QuickQuote { public String state { get; set; } [MyRequiredValidator(ErrorMessage = "Error msg")] public String familyType { get; set; } So in the above example, can the validator test to see what's in the "state" property and take that into consideration when validating "familyType"? I know I can probably save the object to the session but would like to avoid any saving of state if possible.

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  • noClassDefFoundError using Scala Plugin for Eclipse

    - by Jacob Lyles
    I successfully implemented and ran several Scala tutorials in Eclipse using the Scala plugin. Then suddenly I tried to compile and run an example, and this error came up: Exception in thread "main" java.lang.NoClassDefFoundError: hello/HelloWorld Caused by: java.lang.ClassNotFoundException: hello.HelloWorld at java.net.URLClassLoader$1.run(URLClassLoader.java:200) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:315) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:330) at java.lang.ClassLoader.loadClass(ClassLoader.java:250) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:398) After this point I could no longer run any Scala programs in Eclipse. I tried cleaning and rebuilding my project, closing and reopening my project, and closing and reopening Eclipse. Eclipse version number 3.5.2 and Scala plugin 2.8.0 Here is the original code: package hello object HelloWorld { def main(args: Array[String]){ println("hello world") } }

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  • iPhone app memory leak

    - by Marian Busoi
    Any idea why this code gives me a memory leak? As you can see, I'm running out of ideas as to what I can do to stop it. (void)viewWillAppear:(BOOL)animated { [super viewWillAppear:animated]; NSArray *allSketches = [project.sketches allObjects]; NSMutableArray *temp = [[NSMutableArray alloc] initWithArray:allSketches]; if(sketchesArray != nil) [sketchesArray release]; [self setSketchesArray:temp]; [allSketches release]; allSketches = nil; [temp release]; temp = nil; } I also release sketchesArray inside viewDidDissapear. I'm not using viewDidLoad and dealloc to init/release these objects as what I am doing requires me to use viewWillAppear and viewDidDissapear. Thanks

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  • Recommendations on SharePoint site permission model

    - by Sachin
    Hi All, I have a SharePoint site which contains a root site and site collection in it. Now there are some sites that inherits permissions from their parent site and some site has their own permission module. Now a user from owner group of root site browses site collection but there are few site which doesn't allow user to view the content of it. Now what I want is general recommendation on when creating a new site in SharePoint what is best possible approach to set site permission. In what case we can inherits permissions from parent site..? In what case we can we us unique permission for a site..? If a site has unique permission set then is it possible to creat a group at root level which has access to all site collection irrespective of site permission model? I want a general recommendation based on above scenario. Any help will be appriciable. Thanks Sachin

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  • Memory leak in WPF app due to DelegateCommand.

    - by Abdullah BaMusa
    I just finished desktop apps written in WPF and c# using MVVM pattern. In this app I used Delegate Command implementation to wrap the ICommands properties exposed in my ModelView. The problem is these DelegateCommands prevent my ModelView and View from being garbage collected after closing the view. So it stays larking until I terminate the whole application. I profile the application I find it’s all about delegatecommand that keeping the modelview in memory. How could I avoid this situation and is this in nature of mvvm pattern, or it’s about my implantation of the pattern?. Thanks

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  • Google App Engine - "Invalid sender format" when sending e-mail

    - by Taylor Leese
    I'm trying to send an e-mail using Google App Engine. I'm getting the exception below and I'm not sure why at the moment. Any ideas? javax.mail.SendFailedException: Send failure (javax.mail.MessagingException: Illegal Arguments (java.lang.IllegalArgumentException: Bad Request: Invalid sender format)) at javax.mail.Transport.send(Transport.java:163) at javax.mail.Transport.send(Transport.java:48) at com.mystuff.service.mail.MailService.sendActivationEmail(MailService.java:145) Below is the code related to sending the e-mail. public final void sendActivationEmail(final UserAccount user) { final Properties props = new Properties(); final Session session = Session.getDefaultInstance(props, null); final Message message = new MimeMessage(session); final Multipart multipart = new MimeMultipart(); final MimeBodyPart htmlPart = new MimeBodyPart(); final MimeBodyPart textPart = new MimeBodyPart(); final Locale locale = LocaleContextHolder.getLocale(); try { message.setFrom(new InternetAddress(getFromAddress(), "Qoogeo")); message.addRecipient(Message.RecipientType.TO, new InternetAddress(user.getUsername(), user.getFirstName() + " " + user.getLastName())); message.setSubject(messageSource.getMessage("mail.subject", null, locale)); textPart.setContent(messageSource.getMessage("mail.body.txt", new Object[] {getHostname(), user.getActivationKey()}, locale), "text/plain"); htmlPart.setContent(messageSource.getMessage("mail.body.html", new Object[] {getHostname(), user.getActivationKey()}, locale), "text/html"); multipart.addBodyPart(textPart); multipart.addBodyPart(htmlPart); message.setContent(multipart); Transport.send(message); } catch (MessagingException e) { LOGGER.warn(ERROR_MSG, e); } catch (UnsupportedEncodingException e) { LOGGER.warn(ERROR_MSG, e); } } Also, getFromAddress() returns "[email protected]".

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  • Memory efficient import many data files into panda DataFrame in Python

    - by richardh
    I import into a panda DataFrame a directory of |-delimited.dat files. The following code works, but I eventually run out of RAM with a MemoryError:. import pandas as pd import glob temp = [] dataDir = 'C:/users/richard/research/data/edgar/masterfiles' for dataFile in glob.glob(dataDir + '/master_*.dat'): print dataFile temp.append(pd.read_table(dataFile, delimiter='|', header=0)) masterAll = pd.concat(temp) Is there a more memory efficient approach? Or should I go whole hog to a database? (I will move to a database eventually, but I am baby stepping my move to pandas.) Thanks! FWIW, here is the head of an example .dat file: cik|cname|ftype|date|fileloc 1000032|BINCH JAMES G|4|2011-03-08|edgar/data/1000032/0001181431-11-016512.txt 1000045|NICHOLAS FINANCIAL INC|10-Q|2011-02-11|edgar/data/1000045/0001193125-11-031933.txt 1000045|NICHOLAS FINANCIAL INC|8-K|2011-01-11|edgar/data/1000045/0001193125-11-005531.txt 1000045|NICHOLAS FINANCIAL INC|8-K|2011-01-27|edgar/data/1000045/0001193125-11-015631.txt 1000045|NICHOLAS FINANCIAL INC|SC 13G/A|2011-02-14|edgar/data/1000045/0000929638-11-00151.txt

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  • Using Groovy as a scripting language...

    - by Zombies
    I prefer to use scripting languages for short tasks, anything such as a really simple http bot, bulk importing/exporting data to/from somewhere, etc etc... Basic throw-away scripts and simple stuff. The point being, that a scripting language is just an efficient tool to write quick programs with. As for my understanding of Groovy at this point... If you were to program in Groovy, and you wan't to write a quick script, wouldn't you be forced to going back to regular java syntax (and we know how that can be convoluted compared to a scripting language) in order to do anything more complicated? For example, if I want to do some http scripting, wouldn't I just be right back at using java syntax to invoke Commons HttpClient? To me, the point of a scripting language is for quickly typed and less forced constructs. And here is another thing, it doesn't seem that there is any incentive for groovy based libraries to be developed when there are already so many good java one's out there, thus making groovy appear to be a Java dependent language with minor scripting features. So right now I am wondering if I could switch to Groovy as a scripting language or continue to use a more common scripting language such as Perl, Python or Ruby.

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  • Using Fantom USB Driver from JNI

    - by Starky
    I'm having some difficulty with JNI. I'm using JNI to call some Java methods from a C++ program. This implementation of JNI is working fine. The goal of the Java program is to send commands over USB to a LEGO robot using LEJOS. This works fine when running the Java program by itself but for some reason when I call the methods from C++ the robot cannot be detected. My only lead so far is that there may be some problem using the Fantom USB driver from a JNI call. This is the driver that's used for the USB connection to the robot. I've had a quick look at the code for the driver and it looks like it makes use of JNI too. So I guess I'm asking the following things: What differences could there be between calling code from JNI and executing it through command prompt with the 'java classname args' method which could cause this problem? Could it be that there is some problem with me using JNI in C++ when the driver that's being used uses JNI as well? I won't post any code just now as I don't think it's really relevant but if anyone thinks that they need to see it then I can add it.

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  • Default values for model fields in a Ruby on Rails form

    - by Callum Rogers
    I have a Model which has fields username, data, tags, date, votes. I have form using form_for that creates a new item and puts it into the database. However, as you can guess I want the votes field to equal 0 and the date field to equal the current date when it is placed into the database. How and where would I set/apply these values to the item? I can get it to work with hidden fields in the form but this comes with obvious issues (someone could set the votes field to a massive number.

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