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  • Strange behaviour of code inside TransactionScope?

    - by Krishna
    We are facing a very complex issue in our production application. We have a WCF method which creates a complex Entity in the database with all its relation. public void InsertEntity(Entity entity) { using(TransactionScope scope = new TransactionScope()) { EntityDao.Create(entity); } } EntityDao.Create(entity) method is very complex and has huge pieces of logic. During the entire process of creation it creates several child entities and also have several queries to database. During the entire WCF request of entity creation usually Connection is maintained in a ThreadStatic variable and reused by the DAOs. Although some of the queries in DAO described in step 2 uses a new connection and closes it after use. Overall we have seen that the above process behaviour is erratic. Some of the queries in the inner DAO does not even return actual data from the database? The same query when run to the actaul data store gives correct result. What can be possible reason of this behaviour?

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  • How to access a flash object embedded via swfobject's embedSWF?

    - by Andree
    Hi there, I have to call an ActionScript method via Javascript, but I have a problem accessing the flash object itself. I embed the flash file via the help of swfobject. Previously, when I use the static publishing approach, I could easily get the flash object by calling these methods: swfobject.registerObject("flash_object", "9", "expressInstall.swf"); var flash_object = swfobject.getObjectById("flash_object"); For some technical reasons, now I have to use the dynamic publishing approach (using swfobject.embedSWF). But, as mentioned in the documentation, the method getObjectById can only be used if you use static publishing approach. Now, how can I access the flash object? Cheers, Andree

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  • Django comparing model instances for equality

    - by orokusaki
    I understand that, with a singleton situation, you can perform such an operation as: spam == eggs and if spam and eggs are instances of the same class with all the same attribute values, it will return True. In a Django model, this is natural because two separate instances of a model won't ever be the same unless they have the same .pk value. The problem with this is that if a reference to an instance has attributes that have been updated by middleware somewhere along the way and it hasn't been saved, and you're trying to it to another variable holding a reference to an instance of the same model, it will return False of course because they have different values for some of the attributes. Obviously I don't need something like a singleton , but I'm wondering if there some official Djangonic (ha, a new word) method for checking this, or if I should simply check that the .pk value is the same with: spam.pk == eggs.pk I'm sorry if this was a huge waste of time, but it just seems like there might be a method for doing this, and something I'm missing that I'll regret down the road if I don't find it.

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  • spring mvc simpleformcontroller - how to stop execution when exception thrown

    - by alan t
    Hi I am using simpleformcontroller and get exception thrown in my OnSubmit method. This does not seem to stop the simpleformcontroler process as it redisplays my form. I can see from log4j output that the exception is getting caught and forwarding to my error page as expected. I can also tell the onSubmit method does not continue after the exception. Which is all good. But i do not see the error page as the simpleformcontroller starts up again and goes through processing for a new form (i can see in log4j ouput Spring log statements 'Displaying New form', 'Creating new command of class ..'. The normal form page is then displayed again. So the problem is that the exception does not seem to terminate the SimpleFormController, it carries on to display the form again. Anyone help? Thanks Alan

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  • JVM crash at CompilerThread

    - by duduamar
    Hi My java application is crashing almost consistently when trying to compile a specific method (it's always the same method), with SIGSEGV: A fatal error has been detected by the Java Runtime Environment: SIGSEGV (0xb) at pc=0x00002aaaab6642a5, pid=8348, tid=1087596864 JRE version: 6.0_16-b01 Java VM: Java HotSpot(TM) 64-Bit Server VM (14.2-b01 mixed mode linux-amd64 ) Problematic frame: V [libjvm.so+0x5332a5] An error report file with more information is saved as: hs_err_pid8348.log If you would like to submit a bug report, please visit: http://java.sun.com/webapps/bugreport/crash.jsp The crash log (interesting parts...): A fatal error has been detected by the Java Runtime Environment: SIGSEGV (0xb) at pc=0x00002aaaab6642a5, pid=8348, tid=1087596864 JRE version: 6.0_16-b01 Java VM: Java HotSpot(TM) 64-Bit Server VM (14.2-b01 mixed mode linux-amd64 ) Problematic frame: V [libjvm.so+0x5332a5] If you would like to submit a bug report, please visit: http://java.sun.com/webapps/bugreport/crash.jsp --------------- T H R E A D --------------- Current thread (0x00002aab1f7ac800): JavaThread "CompilerThread0" daemon [_thread_in_native, id=8694, stack(0x0000000040c36000,0x00000000 40d37000)] I tried to create a core dump and connect to it, but I couldn't find the CompilerThread there (maybe it's been killed be

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  • JSON stringify standalone function for JavaScript

    - by karlthorwald
    I know of YUI who has a JSON.stringify utility and also of JSON2 from json.org. What are other good implementations of JSON.stringify? It should also work in IE6, IE7 and not depend on a framework. If it depends on anything this should be easily included all in one file. Edit: I could easily use jquery-json, which was suggested in the comments of the accepted answer. It did what I wanted. (It depends on jquery but that was easily solved)

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  • Spring security accessing principal

    - by wuntee
    When using spring security, specifically with @notation; what is the proper way to access the principal in a Controller? Lets say the following is my controller, but I would like to access the principal in the secure() method somewhere... @Controller public class LoginController { @RequestMapping(value = "/login", method = RequestMethod.GET) public String login(ModelMap map, @RequestParam(value="fail" , required=false) String fail){ map.addAttribute("title", "Login: AD Credentials"); if(fail != null){ map.addAttribute("error", "Invalid credentials"); } return("login"); } @RequestMapping("/secure") @PreAuthorize("isAuthenticated()") public String secure(ModelMap map, String principal){ System.out.println(principal); return("secure"); } }

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  • NDbUnit MySQL Assembly Version Conflict

    - by LnDCobra
    I am trying to use NHiberanate with NDbUnit but I cannot as NDbUnit tried to load MySql.Data version 1.0.10.1 and NHibernate tries to load version 6.2.2.0 and I can only reference one of them. Here is the error I get when i try to run NDbUnit Set Up System.IO.FileLoadException: Could not load file or assembly 'MySql.Data, Version=1.0.10.1, Culture=neutral, PublicKeyToken=c5687fc88969c44d' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040) at NDbUnit.Core.MySqlClient.MySqlDbCommandBuilder.GetConnection(String connectionString) at NDbUnit.Core.DbCommandBuilder..ctor(String connectionString) at NDbUnit.Core.MySqlClient.MySqlDbCommandBuilder..ctor(String connectionString) at NDbUnit.Core.MySqlClient.MySqlDbUnitTest.CreateDbCommandBuilder(String connectionString) at NDbUnit.Core.NDbUnitTest.GetDbCommandBuilder() at NDbUnit.Core.NDbUnitTest.ReadXmlSchema(Stream xmlSchema) at NDbUnit.Core.NDbUnitTest.ReadXmlSchema(String xmlSchemaFile) at Proteus.Utility.UnitTest.DatabaseUnitTestBase.SaveDatabase(String connectionString, String schemaFilePathName, String datasetFilePathName, DatabaseClientType clientType) at TGS.UserAccountControlTest.UserAccountManagerTest._TestFixtureSetup() in C:\Documents and Settings\Michal\My Documents\Visual Studio 2008\Projects\TGS\TGS.UserAccountControlTest\UserAccountManagerTest.cs:line 69 Does anyone know how to resolve this?

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  • Why don't these class attributes register?

    - by slypete
    I have a factory method that generates django form classes like so: def get_indicator_form(indicator, patient): class IndicatorForm(forms.Form): #These don't work! indicator_id = forms.IntegerField(initial=indicator.id, widget=forms.HiddenInput()) patient_id = forms.IntegerField(initial=patient.id, widget=forms.HiddenInput()) def __init__(self, *args, **kwargs): forms.Form.__init__(self, *args, **kwargs) self.indicator = indicator self.patient = patient #These do! setattr(IndicatorForm, 'indicator_id', forms.IntegerField(initial=indicator.id, widget=forms.HiddenInput())) setattr(IndicatorForm, 'patient_id', forms.IntegerField(initial=patient.id, widget=forms.HiddenInput())) for field in indicator.indicatorfield_set.all(): setattr(IndicatorForm, field.name, copy(field.get_field_type())) return type('IndicatorForm', (forms.Form,), dict(IndicatorForm.__dict__)) I'm trying to understand why the top form field declarations don't work, but the setattr method below does work. I'm fairly new to python, so I suspect it's some language feature that I'm misunderstanding. Can you help me understand why the field declarations at the top of the class don't add the fields to the class? In a possibly related note, when these classes are instantiated, instance.media returns nothing even though some fields have widgets with associated media. Thanks, Pete

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  • JsonResult shows up a file download in browser

    - by joshb
    I'm trying to use jquery.Ajax to post data to an ASP.NET MVC2 action method that returns a JsonResult. Everything works great except when the response gets back to the browser it is treated as a file download instead of being passed into the success handler. Here's my code: Javascript: <script type="text/javascript"> $(document).ready(function () { $("form[action$='CreateEnvelope']").submit(function () { $.ajax({ url: $(this).attr("action"), type: "POST", data: $(this).serialize(), dataType: "json", success: function (envelopeData) { alert("test"); } }); }); return false; }); </script> Action method on controller: public JsonResult CreateEnvelope(string envelopeTitle, string envelopeDescription) { //create an envelope object and return return Json(envelope); } If I open the downloaded file the json is exactly what I'm looking for and the mime type is shown as application/json. What am I missing to make the jquery.ajax call receive the json returned?

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  • How to get a clipboard paste notification and provide my own data?

    - by Uwe Keim
    For a small utility I am writing (.NET, C#), I want to monitor clipboard copy operations and clipboard paste operations. My idea is to provide my own data when pasting into an arbitrary application. The monitoring of a copy operation can be easily done by using a clipboard viewer. Something that seems much more advanced to me is to write a "clipboard paste provider": Answer to "what formats are available" queries of applications. Supply data to application paste operations. I found this posting and this posting, but none of them seems to really help me. What I guess is that I somehow have to mimic/hijack the current clipboard. Question: Is it possible to "wrap" the clipboard in terms of paste operations and provide my own kind of "clipboard proxy"? Thanks Uwe

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  • Renaming CSS classes across HTML files

    - by hekevintran
    If I have 100 HTML files that use a set of CSS classes, is there a utility that I can use to intelligently rename the classes? I know that every editor/IDE has a find/replace in project feature. Using sed you can do the same thing. This is not intelligent because it is a simple string replace. I want to know of a tool that actually understands what a CSS class is and how to replace instances of it. I suppose a fancy regular expression can do the same thing.

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  • Out of Memory When Loading Java Entities

    - by Hugh Buchanan
    I have a terrible problem that hopefully has a very simple answer. I am running out of memory when I perform a basic If I have code like this: MyEntity myEntity; for (Object id: someIdList) { myEntity = find(id); // do something basic with myEntity } And the find() method is a standard EntityManager related method: public MyEntity find(Object id) { return em.find(mycorp.ejb.entity.MyEntity.class, id); } This code worked a couple of weeks ago, and works fine if there are fewer items in the database. The resulting error I am facing is: java.lang.OutOfMemoryError: GC overhead limit exceeded The exception is coming from oracle toplink calling some oracle jdbc methods. The loop exists because an EJBQL such as "select object(o) from MyEntity as o" will overload the application server when there are lots of records.

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  • Value object getter

    - by sarah xia
    Hi, I've got a value object, which stores info for example amount. The getAmount() getter returns amount in cents. However in various places, we need to get amount in dollar. There are 2 approaches I can think of: write a convert method and place it in a utility class. add a getAmountInDollar() getter in the value object. I prefer the second approach. What do you think? What are pros and cons of both approaches?

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  • handling NSStream events when using EASession in MonoTouch

    - by scotru
    Does anyone have an example of how to handle read and write NSStream events in Monotouch when working with accessories via EASession? It looks like there isn't a strongly typed delegate for this and I'm having trouble figuring out what selectors I need to handle on the delegates of my InputStream and OutputStream and what I actually need to do with each selector in order to properly fill and empty the buffers belonging to the EASession object. Basically, I'm trying to port Apple's EADemo app to Monotouch right now. Here's the Objective-C source that I think is relevant to this problem: / / asynchronous NSStream handleEvent method - (void)stream:(NSStream *)aStream handleEvent:(NSStreamEvent)eventCode { switch (eventCode) { case NSStreamEventNone: break; case NSStreamEventOpenCompleted: break; case NSStreamEventHasBytesAvailable: [self _readData]; break; case NSStreamEventHasSpaceAvailable: [self _writeData]; break; case NSStreamEventErrorOccurred: break; case NSStreamEventEndEncountered: break; default: break; } } / low level write method - write data to the accessory while there is space available and data to write - (void)_writeData { while (([[_session outputStream] hasSpaceAvailable]) && ([_writeData length] > 0)) { NSInteger bytesWritten = [[_session outputStream] write:[_writeData bytes] maxLength:[_writeData length]]; if (bytesWritten == -1) { NSLog(@"write error"); break; } else if (bytesWritten > 0) { [_writeData replaceBytesInRange:NSMakeRange(0, bytesWritten) withBytes:NULL length:0]; } } } // low level read method - read data while there is data and space available in the input buffer - (void)_readData { #define EAD_INPUT_BUFFER_SIZE 128 uint8_t buf[EAD_INPUT_BUFFER_SIZE]; while ([[_session inputStream] hasBytesAvailable]) { NSInteger bytesRead = [[_session inputStream] read:buf maxLength:EAD_INPUT_BUFFER_SIZE]; if (_readData == nil) { _readData = [[NSMutableData alloc] init]; } [_readData appendBytes:(void *)buf length:bytesRead]; //NSLog(@"read %d bytes from input stream", bytesRead); } [[NSNotificationCenter defaultCenter] postNotificationName:EADSessionDataReceivedNotification object:self userInfo:nil]; } I'd also appreciate any architectural recommendations on how to best implement this in monotouch. For example, in the Objective C implementation these functions are not contained in any class--but in Monotouch would it make sense to make them members of my

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  • Feeding a Drill Down Menu with categories, subcategories and subSubcategories from a database

    - by Hassan
    Hi everyone, I have a Drill Down menu and I want to have it gets its elements from a database, I am using php and MySQL and the table (categories) looks like this : http://yfrog.com/jctablehsj I can't figure out how I can extract these information in a way I could put it inside the Drill Down Menu ! I found the recursive method (with LEFT JOINs) and the nested method which I barely understood and again I couldn't apply it to the Drill Down Menu. I found that some people found out a solution with left join and group by but couldn't understand or copy their example ! I would be more than gratefull if you could give me the extact of the query. Thanks a lot for your hard work, Hassan

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  • How to set notification sound volume programatically?

    - by Vitalii Korsakov
    I have this method in my main activity private void beep() { AudioManager manager = (AudioManager) getSystemService(Context.AUDIO_SERVICE); manager.setStreamVolume(AudioManager.STREAM_NOTIFICATION, 0, AudioManager.FLAG_SHOW_UI + AudioManager.FLAG_PLAY_SOUND); Uri notification = RingtoneManager .getDefaultUri(RingtoneManager.TYPE_NOTIFICATION); Ringtone r = RingtoneManager.getRingtone(getApplicationContext(), notification); r.play(); } As I understand, notification sound volume should be regulated by STREAM_NOTIFICATION. But notification always plays with the same volume despite that volume number in setStreamVolume method. Why is that?

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  • PHP-GD: Dealing with Unicode characters

    - by sehugg
    I am developing a web service that renders characters using the PHP GD extension, using a user-selected TTF font. This works fine in ASCII-land, but there are a few problems: The string to be rendered comes in as UTF-8. I would like to limit the list of user-selectable fonts to be only those which can render the string properly, as some fonts only have glyphs for ASCII characters, ISO 8601, etc. In the case where some decorative characters are included, it would be fine to render the majority of characters in the selected font and render the decorative characters in Arial (or whatever font contains the extended glyphs). It does not seem like PHP-GD has support for querying the font metadata sufficiently to figure out if a character can be rendered in a given font. What is a good way to get font metrics into PHP? Is there a command-line utility that can dump in XML or other parsable format?

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  • Charts - Column chart with extra data

    - by Koran
    Hi, I have some data similar to the following chart: http://developer.yahoo.com/yui/examples/charts/charts-seriescustomization_clean.html Only difference is that for each of the fields - I have some other extra data - say For utlilities - I have a cash reserve for utility - as another field. I would prefer this data point to come above the utilities bar. I have been trying from morning to get this chart working, but I am unable to do so. Could you please let me know if it is possible - someway? Thank you very much in advance. Regards K

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  • iPhone: Sharing protocol/delegate code

    - by pion
    I have the following code protocol snippets: @protocol FooDelegate; @interface Foo : UIViewController { id delegate; } ... @protocol FooDelegate ... // method 1 ... // method 2 ... @end Also, the following code which implements FooDelegate: @interface Bar1 : UIViewController { ... } @interface Bar2 : UITableViewController { ... } It turns out the implementation of FooDelegate is the same on both Bar1 and Bar2 classes. I currently just copy FooDelegate implementation code from Bar1 to Bar2. How do I structure/implement in such a way that Bar1 and Bar2 share the same code in a single code base (not as currently with 2 copies) since they are the same? Thanks in advance for your help.

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  • How to zoom in google map (J2ME)

    - by Nivek
    Hi all, I am trying to develop a J2ME application that could retrieve the google map by passing in the GPS coordinates. From http://wiki.forum.nokia.com/index.php/Google_Maps_API_in_Java_ME, it provides the Utility method for map scrolling. Basically it states that i need to include MicroFloat library in my project. Here's what i did (Not sure if i am doing it right) Create a project, build the code. Add the jar file into my current project lib. but i am still getting error from codes. Example double LToY(double y) { return Math.round( offset - radius * Double.longBitsToDouble(MicroDouble.log( Double.doubleToLongBits( (1 + Math.sin(Math.toRadians(y))) / (1 - Math.sin(Math.toRadians(y))) ) )) / 2); } Am i missing any import statment??? Btw i am using netbeans 6.5. Thanks for any guidance... Kevin

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  • Unit tests only run automatically when active SDK is "simulator"?

    - by Steve Madsen
    I have followed the instructions Apple publishes for unit testing applications on iPhone and things work great when I set the active SDK to "iPhone Simulator". I have it configured to always build and run my tests as part of building the application itself. Apple implies (by omission) that this should work all of the time, but the tests are skipped when I set the active SDK to "iPhone Device". I am also linking with OCMock, and instead of a failing test, this warning is in the build log: ld: warning: in .../build/Debug-iphoneos/OCMock.framework/OCMock, missing required architecture arm in file It's very nice to make the unit test bundle a dependency of the main application, so these tests run at every build, but its utility is greatly diminished if it doesn't work during device builds. Is this a known, but undocumented, limitation?

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  • ExecutionEngineException thrown when loading native dll

    - by Axarydax
    I have a 32-bit .net application that uses a native 32-bit DLL via DllImport(). The native DLL is our internal file analysis library, and I need to use it as porting it to C# would be a problem if people update it (other software uses it). The problem is that when I try to execute any method in the native DLL I get a System.ExecutionEngineException thrown. In fact, I've reduced the managed application to a simple tester that just calls a native method, but it still fails. I am on 64-bit Windows 7, but that should not matter as I'm compiling everything as 32-bit binaries. What is also interesting, when I look at the native DLL in the Dependency Walker, it shows that it can't find msvcr90.dll - but when I open any other of our native DLLs in the Dependency Walker, it can find their referenced msvcr90.dll just fine. Can there by some wrongness in the compilation of native DLL that messes up its DLL references?

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  • Are these AVAudioSettings right?

    - by Dyldo42
    self.recordSettings = [NSMutableDictionary dictionary]; [recordSettings setValue:[NSNumber numberWithInt:kAudioFormatAppleIMA4] forKey:AVFormatIDKey]; [recordSettings setValue:[NSNumber numberWithFloat:44100.0] forKey:AVSampleRateKey]; [recordSettings setValue:[NSNumber numberWithInt:1] forKey:AVNumberOfChannelsKey]; recordSettings is declared in my view's header file and initialised in its viewDidLoad method. For some reason, everything is working in the simulator, but on a device, the [recorder record] method is returning NO. The only theory I have is that something in the recordSettings isn't compatible with an actual device. Any ideas?

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  • Formatting address of different types

    - by mickyjtwin
    I have various classes which all contain address details, i.e. AddressLine1, AddressLine2, AddressLine3, Suburb, Town, etc. On the front end, I need to format the address in a particular way, i.e. AddressLine1<br /> AddressLine2<br /> Suburb State Postcode If AddressLine2 does not exist or empty, don't show it. Quite straight-forward. I am trying to determine the best way to show this info. At the moment, the Address property of each class calls a FormatAddress method which writes out the html string. This exists as a method of the class. My opinion is that any formatting should exist from the front-end control i.e. ascx etc. However, if these DetailClasses need to format the same address info, what would be the best option, also making it easier to maintain?

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