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  • Static nested class visibility issue with Scala / Java interop

    - by Matt R
    Suppose I have the following Java file in a library: package test; public abstract class AbstractFoo { protected static class FooHelper { public FooHelper() {} } } I would like to extend it from Scala: package test2 import test.AbstractFoo class Foo extends AbstractFoo { new AbstractFoo.FooHelper() } I get an error, "class FooHelper cannot be accessed in object test.AbstractFoo". (I'm using a Scala 2.8 nightly). The following Java compiles correctly: package test2; import test.AbstractFoo; public class Foo2 extends AbstractFoo { { new FooHelper(); } } The Scala version also compiles if it's placed in the test package. Is there another way to get it to compile?

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  • Migrating a Core Data Store from iCloud to local

    - by schmok
    I'm currently struggling with Core Data iCloud migration. I want to move a store from an iCloud ubiquity container (.nosync) to a local URL. Problem is whenever I call something like this: NSPersistentStore *newStore = [self.persistentStoreCoordinator migratePersistentStore: currentiCloudStore toURL: localURL options: nil withType: NSSQLiteStoreType error: &error]; I get this error: -[NSPersistentStoreCoordinator addPersistentStoreWithType:configuration:URL:options:error:](1055): CoreData: Ubiquity: Error: A persistent store which has been previously added to a coordinator using the iCloud integration options must always be added to the coordinator with the options present in the options dictionary. If you wish to use the store without iCloud, migrate the data from the iCloud store file to a new store file in local storage. file://localhost/Users/sch/Library/Containers/bla/Data/Documents/tmp.sqlite. This will be a fatal error in a future release Anyone ever seen this error? Maybe I'm just missing the right migration options?

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  • ADT will not allow creation of Android Activity

    - by NewShelbyWoo
    I installed the ADT bundle from http://developer.android.com/sdk/index.html yesterday, and I was following a basic Hello World tutorial. I created a new Android Application Project with a Blank Activity named MainActivity. The resulting project has an empty src folder and empty res\layout folder. There is a R.java file in the gen folder but it has no reference to MainActivity. This is what the SDK manager says I have installed Android SDK Tools v 22.6 Android SDK Platform-tools v 19.0.1 Android SDK Build-tools v 19 SDK Platform v 3 ARM EABI v7a System Image v 2 Android Support Library v 19.0.1 Google USB Driver v 9 I also tried manually creating an activity by right clicking the src folder and going to Android Activity, but when I hit Finish on the creation wizard, nothing happens. Does anyone have any clues as to what's going on? Did I miss a key component to install or something?

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  • Out-Of-Memory while doing Core Data migration

    - by Kamchatka
    Hello, I'm migrating a CoreData model between two versions of an application. I was storing binary data as blobs in the previous version and I want to take them out of the blobs for performance. My issue is that during the migration it seems that Core Data loads everything into memory which leads to Low Memory Warnings and then to my app being killed. Apple documentation suggests the following : http://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/CoreDataVersioning/Articles/vmCustomizingTheProcess.html#//apple_ref/doc/uid/TP40005510-SW9 However, it seems to rely on the fact that the large objects are applied different mapping. In my case, all the objects are basically the same and the same mapping has to be applied to each of them. I don't see in this case how I could apply their technique. How should I handle a migration with very large objects ?

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  • How do you uninstall old custom installs of Xcode?

    - by Jonathan
    Hi, When I install a beta, I do a custom install into a separate folder to the latest release version. I have several old beta installs. How do I uninstall the old custom versions of xcode? Can I just trash the folder? Our do I need to use Terminal? The release notes suggest to use this: $ sudo /Library/uninstall-devtools --mode=all But will this just uninstall my original official release version 3.2? Thanks.

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  • zend framework error

    - by Huy
    I started getting the following error today, but don't know why and what caused it. [31-May-2010 03:52:10] PHP Fatal error: Cannot run code from this file in conjunction with non encoded files in ZendFramework-1.10.5/library/Zend/Validate/Hostname/Com.php on line 547 I'm using zend framework version 1.10.5; although version 1.09 also has the same problem. I only get this error in my production server, and cannot duplicate it from anywhere else. Also note that I only get this error when I submit form with recaptcha. If I remove recaptcha, it works fine. Any help is appreciated.

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  • Zend Framework Error:Invalid parameter number: no parameters were bound'

    - by roast_soul
    I'm using the Zend Frameworker 1.12. According to the help file, I used the Zend_Db_Statement to execute my sql. Below is my php code: $sql = "delete from options where id=?"; $stmt = new Zend_Db_Statement_Mysqli($this->getAdapter(), $sql); return $stmt->execute(array('1')); But the error is exception 'PDOException' with message 'SQLSTATE[HY093]: Invalid parameter number: no parameters were bound' in D:\Zend\workspaces\DefaultWorkspace.metadata.plugins\org.zend.php.framework.resource\resources\ZendFramework-1\library\Zend\Db\Statement\Mysqli.php:209 Stack trace: ......... ......... I googled for days, but nothing works. Any one know how to fix it?

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  • A question about friend functions

    - by Als
    I faced a problem recently with a 3rd party library which generates classes from a xml. Here is a gist of it: class B; class A { void doSomething(); friend class B; }; class B { void doSomething(); void doSomethingMore() { doSomething(); } }; The compiler flags call to the function doSomething() as ambiguous and flags it as an compiler error. It is easy to understand why it gives the error.Class B being friend of class A, every member of class B has access to all the members of class A. Renaming of the either of functions resolved my problem but it got me thinking that shouldn't in this case the compiler should give a priority to the class's own member function over the function in another class of which it is a friend?

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  • Fatal error: Function name must be a string in.. PHP error

    - by Jonesy
    Hi I have a class called User and a method called insertUser(). function insertUser($first_name, $last_name, $user_name, $password, $email_address, $group_house_id) { $first_name = mysql_real_escape_string($first_name); $last_name = mysql_real_escape_string($last_name); $user_name = mysql_real_escape_string($user_name); $password = mysql_real_escape_string($password); $email_address = mysql_real_escape_string($email_address); $query = "INSERT INTO Users (FirstName,LastName,UserName,Password,EmailAddress, GroupHouseID) VALUES ('$first_name','$last_name','$user_name','$password','$email_address','$group_house_id')"; $mysql_query($query); } And I call it like this: $newUser = new User(); $newUser->insertUser($first_name, $last_name, $user_name, $email, $password, $group_house_id); When I run the code I get this error: Fatal error: Function name must be a string in /Library/WebServer/Documents/ORIOnline/includes/class_lib.php on line 33 Anyone know what I am doing wronly? Also, this is my first attempt at OO PHP. Cheers, Jonesy

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  • Overriding Page class constructor in ASP.NET code-behind file -- when is it called?

    - by CSharp Noob
    If I override the System.Web.UI.Page constructor, as shown, when does DoSomething() get called in terms of the page lifecycle? I can't seem to find this documented anywhere. namespace NameSpace1 { public partial class MyClass : System.Web.UI.Page { public MyClass() { DoSomething(); } protected void Page_Load(object sender, EventArgs e) { } } } For reference, here is the ASP.NET Page Lifecycle Overview: http://msdn.microsoft.com/en-us/library/ms178472.aspx Turns out the best answer was right in the MSDN article. I just had to look carefully at the diagram.

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  • Hudson, C++ and UnitTest++

    - by Gilad Naor
    Has anyone used Hudson as a Continuous-Integration server for a C++ project using UnitTest++ as a testing library? How exactly did you set it up? I know there have been several questions on Continuous Integration before, but I hope this one has a narrower scope. EDIT: I'll clarify a bit on what I'm looking for. I already have the build set to fail when the Unit-Tests fail. I'm looking for something like Hudson's JUnit support. UnitTest++ can create XML reports (See here). So, perhaps if someone knows how to translate these reports to be JUnit compatible, Hudson will know how to eat it up?

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  • social networking website database management

    - by Anup Prakash
    This could be very basic type of question for you! But for me it is very important. 1) How these(orkut, facebook or other) website store the images in server? Options: a) Keeping all the images in database by converting into bytecode/binary. b) Making a new folder for each user and saving photographs according to their library name. c) Or something else which i(Anup) didn't guess yet. Please reply me. Sayiing thanx to see my question and any many many thanx for answering my question.

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  • Design support for templated UserControl

    - by SaphuA
    Hello, I have created a real simple templated UserControl using the following tutorial: http://msdn.microsoft.com/en-us/library/36574bf6(VS.80).aspx I can now add this control to my mvc 2.0 application using: <components:Box BoxType="Help" Title="Content Title" runat="server"> <Content> <%: Html.TextBox("test") %> This is my awesome content!<br /> <b>Test</b> </Content> </components:Box> However, when I go to the designer, I get an exception: Type 'System.Web.UI.UserControl' does not have a public property named 'Content'. How can I fix this? I don't even need to use the drag-and-drop designer, just rendering the control will do fine. Thanks!

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  • How do I use .NET to find an orange ball in an image?

    - by JohnS
    I'm getting images from a C328R camera attached to a small arduino robot. I want the robot to drive towards orange ping-pong balls and pick them up. I'm using the C# code supplied by funkotron76 at http://www.codeproject.com/KB/recipes/C328R.aspx. Is there a library I can use to do this, or do I need to iterate over every pixel in the image looking for orange? If so, what kind of tolerance would I need to compensate for various lighting conditions? I could probably test to figure out these numbers, but I'm hoping someone out there knows the answers.

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  • Naming convention in Objective C /C , start with "_"?

    - by Tattat
    Something I see ppl define the variable like this: b2World *_world; b2Body *_body; CCSprite *_ball; instead of b2World *world; b2Body *body; CCSprite *ball; I familiar with the second one, but not the first one. So, I checked the Wikipedia about naming convention: Names beginning with double underscore or an underscore and a capital letter are reserved for implementation (compiler, standard library) and should not be used (e.g. __reserved or _Reserved). So, is that any special meaning which is start with "_"? The wiki page.

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  • Techniques for Visualizing Data

    - by Rob Wilkerson
    I'm looking into providing several methods of visualizing a large volume of data. This may include, but will not be limited to, simple graphing. The techniques I'm exploring will involve shapes, text and lines. It will also involve interaction with elements (hiding, focusing, etc.) and animation (shifting, dragging, systematic reorganizing, etc.) of those elements. SVG or Canvas seem like the obvious choices (in conjunction with a JS library--probably jQuery), but the lack of cross-browser availability is a concern. I'd prefer to avoid Flash/Flex, but right now it's the only rock solid, cross-browser technology I've found if support for IE7/8 is a requirement. Does anyone have any other suggestions or any additional information that would make a technology I've listed seem even more appealing? Thanks.

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  • Loopj Android Async Http - onFailure not fired

    - by Ashley Staggs
    I am using the great async http library from loopj, but I have run into a small snag. If the user has no internet connection or loses their connection, the app just won't return anything. This part is expected, but it also doesn't fire the onFailure method. Also, the code I have used when there is an internet connection does work so there is no problem on the server end. Here is some code that is stripped down to the minimum. It also doesn't work (I have tested this too) String url = getString(R.string.baseurl) + "/appconnect.php"; client.getHttpClient().getParams().setParameter(ClientPNames.ALLOW_CIRCULAR_REDIRECTS, true); client.get(url, null, new JsonHttpResponseHandler() { @Override public void onSuccess(JSONArray response) { Toast.makeText(getApplicationContext(), "Success", Toast.LENGTH_SHORT).show(); } @Override public void onFailure(Throwable e, JSONArray errorResponse) { Toast.makeText(getApplicationContext(), "Failure", Toast.LENGTH_SHORT).show(); } }); Thanks, Ashley

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  • C# Excel Exception

    - by Andrew James Watt
    I am trying to copy all data from worksheet1 and paste the values into worksheet2 at the same position I am using office 2003 and the Interlop library. Here is my code; public void CreateExcelWorksheet() { Microsoft.Office.Interop.Excel.Application xlApp = new Microsoft.Office.Interop.Excel.Application(); if (xlApp == null) { Console.WriteLine("EXCEL could not be started. Check that your office installation."); return; } xlApp.Visible = true; Workbook wb = xlApp.Workbooks.OpenXML(@"C:\XML_Export.xml", Type.Missing, 2); Worksheet worksheet1 = wb.Worksheets[1] as Worksheet; Worksheet worksheet2 = wb.Worksheets[2] as Worksheet; worksheet1.UsedRange.Copy(Type.Missing); worksheet2.PasteSpecial(Microsoft.Office.Interop.Excel.XlPasteType.xlPasteValues, false, false, Type.Missing, Type.Missing, Type.Missing, Type.Missing); } For some reason after the paste command the following exception occurs: Exception from HRESULT: 0x800A03EC Could anyone help?

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  • Javascript does not work on IIS

    - by Cat Mitch
    I have a .NET library executing as part of our website that renders HTML to image formats. It uses the IE rendering engine, and will happily run any javascript if present to do the rendering. The problem is we just moved the code to a new server, and javascript seems to be disabled. I tried changing (briefly the Application Pools Process Model Identity from NetworkService to LocalSystem, and that worked fine. Hence it must be a permissions problem. So my questions are this: 1) What is the specific permission I need to set to allow the IE rendering engine to execute javascript, inside the IIS application pool? 2) What is the best way to enable that in my application pool? Do I just somehow set it in NetworkService, or create a new identify (how is that done?) Thanks!

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  • Custom control in DataViewGrid

    - by Winston
    I'm trying to embed a custom control in a Datagridview. I've looked at the Calendar (http://msdn.microsoft.com/en-us/library/7tas5c80.aspx) example but i just cant get it working for a custom control. I need the control to show for each object in the grid. Not just when the user edits the content. I need to do this so that i can bind my dataviewgrid to a datasource and have it create the required forms in the grid for each my object list. So that the user can do inline editing in the grid without having to double click the row and have a new dialog pop up. Any help would be greatly appreciated.

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  • C# Socket Server

    - by Snoopy
    In .NET 3.5 a new socket classes was released: http://msdn.microsoft.com/en-us/library/bb968780.aspx i found a sample but some questions regarding best practicses are remaining: http://code.msdn.microsoft.com/nclsamples/Wiki/View.aspx?title=Socket%20Performance m_numConnections (the maximum number of connections the sample is designed to handle simultaneously) is probably equal to the amount of cpu cores i have. m_receiveBufferSize is the size for one packet? like 8kb? how should i handle a length byte? opsToPreAlloc i dont understand. is this if i code a transparent proxy? Regarding the multithreading, what should be used? The reactive extension seem to be a good choice. Has anyone tried this in a real world project? Are there better options? I had bad experiences with the .NET thread pool in the past.

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  • Is there an easy way to make `boost::ptr_vector` more debugger friendly in Visual Studio?

    - by Billy ONeal
    I'm considering using boost::ptr_container as a result of the responses from this question. My biggest problem with the library is that I cannot view the contents of the collection in the debugger, because the MSVC debugger doesn't recognize it, and therefore I cannot see the contents of the containers. (All the data gets stored as void * internally) I've heard MSVC has a feature called "debugger visualizers" which would allow the user to make the debugger smarter about these kinds of things, but I've never written anything like this, and I'm not hugely firmiliar with such things. For example, compare the behavior of boost::shared_ptr with MSVC's own std::tr1::shared_ptr. In the debugger (i.e. in the Watch window), the boost version shows up as a big mess of internal variables used for implementing the shared pointer, but the MSVC version shows up as a plain pointer to the object (and the shared_ptr's innards are hidden). How can I get started either using or implementing such a thing?

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  • How can I convert arbitrary strings to CLS-Compliant names?

    - by Brian Hinchey
    Does anyone know of an algorithm (or external library) that I could call to convert an arbitrary string (i.e. outside my control) to be CLS compliant? I am generating a dynamic RDLC (Client Report Definition) for an ASP.Net Report Viewer control and some of the field names need to be based on strings entered by the user. Unfortunately I have little control over the entry of the field names by the client (through a 3rd party CMS). But I am quite flexible around substitutions required to create the compliant string. I have a reactive hack algorithm for now along the lines of: public static string FormatForDynamicRdlc(this string s) { //We need to change this string to be CLS compliant. return s.Replace(Environment.NewLine, string.Empty) .Replace("\t", string.Empty) .Replace(",", string.Empty) .Replace("-", "_") .Replace(" ", "_"); } But I would love something more comprehensive. Any ideas? NOTE: If it is of any help, the algorithm I am using to create the dynamic RDLC is based on the BuildRDLC method found here: http://csharpshooter.blogspot.com/2007/08/revised-dynamic-rdlc-generation.html

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  • C# huge size 2-dim arrays

    - by 4eburek
    I need to declare square matrices in C# WinForms with more than 20000 items in a row. I read about 2GB .Net object size limit in 32bit and also the same case in 64bit OS. So as I understood the single answer - is using unsafe code or separate library built withing C++ compiler. The problem for me is worth because ushort[20000,20000] is smaller then 2GB but actually I cannot allocate even 700MB of memory. My limit is 650MB and I don't understand why - I have 32bit WinXP with 3GB of memory. I tried to use Marshal.AllocHGlobal(700<<20) but it throws OutOfMemoryException, GC.GetTotalMemory returns 4.5MB before trying to allocate memory. I found only that many people say use unsafe code but I cannot find example of how to declare 2-dim array in heap (any stack can't keep so huge amount of data) and how to work with it using pointers. Is it pure C++ code inside of unsafe{} brackets? Could you please provide a small example of working with matrices using pointers in unsafe code.

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  • Infopath form publishing and root content type ?

    - by Steve B
    Hi, I have several infopath 2010 form template that I want to publish to a form library in SharePoint 2010 Server with enterprise CaL. All of this forms have a common part (a template part actually). Is it possible to define a common "parent" content type of this forms ? In fact, I want : Form content type (SP OOB) My root form content type, with standard columns "requester", "process name", etc. Form 1 Form 2 etc. other unrelated form 1 other unrelated form 2 Instead of the standard behavior : Form content type (SP OOB) Form 1 Form 2 other unrelated form 1 other unrelated form 2 etc. Behind this question I want to be able to create a dashboard of all form request using a content query web, by simply specifying the content type ... One last word: the idea is to allow a customer (assuming its knowledge is limited to IP 2010 basic form design). So I can't accept answers like "extract files, use a text editor and hack the xsf file"... thx in advance

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