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• access exception when invoking method of an anonymous class using java reflection

  - by Asaf David

  Hello I'm trying to use an event dispatcher to allow a model to notify subscribed listeners when it changes. the event dispatcher receives a handler class and a method name to call during dispatch. the presenter subscribes to the model changes and provide a Handler implementation to be called on changes. Here's the code (I'm sorry it's a bit long). EventDispacther: package utils; public class EventDispatcher<T> { List<T> listeners; private String methodName; public EventDispatcher(String methodName) { listeners = new ArrayList<T>(); this.methodName = methodName; } public void add(T listener) { listeners.add(listener); } public void dispatch() { for (T listener : listeners) { try { Method method = listener.getClass().getMethod(methodName); method.invoke(listener); } catch (Exception e) { System.out.println(e.getMessage()); } } } } Model: package model; public class Model { private EventDispatcher<ModelChangedHandler> dispatcher; public Model() { dispatcher = new EventDispatcher<ModelChangedHandler>("modelChanged"); } public void whenModelChange(ModelChangedHandler handler) { dispatcher.add(handler); } public void change() { dispatcher.dispatch(); } } ModelChangedHandler: package model; public interface ModelChangedHandler { void modelChanged(); } Presenter: package presenter; public class Presenter { private final Model model; public Presenter(Model model) { this.model = model; this.model.whenModelChange(new ModelChangedHandler() { @Override public void modelChanged() { System.out.println("model changed"); } }); } } Main: package main; public class Main { public static void main(String[] args) { Model model = new Model(); Presenter presenter = new Presenter(model); model.change(); } } Now, I except to get the "model changed" message. However, I'm getting an java.lang.IllegalAccessException: Class utils.EventDispatcher can not access a member of class presenter.Presenter$1 with modifiers "public". I understand that the class to blame is the anonymous class i created inside the presenter, however I don't know how to make it any more 'public' than it currently is. If i replace it with a named nested class it seem to work. It also works if the Presenter and the EventDispatcher are in the same package, but I can't allow that (several presenters in different packages should use the EventDispatcher) any ideas?

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• Passcode functionality for iPhone app?

  - by David Liu

  I was thinking about putting in PIN number functionality within my iPhone app (various examples can be seen here http://forums.mint.com/showthread.php?t=5956 ), but I was kinda stumped how to go about it. Should I just go with a hidden textfield and simulate the inputs with images?

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• Does WPF break an Entity Framework ObjectContext?

  - by David Veeneman

  I am getting started with Entity Framework 4, and I am getting ready to write a WPF demo app to learn EF4 better. My LINQ queries return IQueryable<T>, and I know I can drop those into an ObservableCollection<T> with the following code: IQueryable<Foo> fooList = from f in Foo orderby f.Title select f; var observableFooList = new ObservableCollection<Foo>(fooList); At that point, I can set the appropriate property on my view model to the observable collection, and I will get WPF data binding between the view and the view model property. Here is my question: Do I break the ObjectContext when I move my foo list to the observable collection? Or put another way, assuming I am otherwise handling my ObjectContext properly, will EF4 properly update the model (and the database)? The reason why I ask is this: NHibernate tracks objects at the collection level. If I move an NHibernate IList<T> to an observable collection, it breaks NHibernate's change tracking mechanism. That means I have to do some very complicated object wrapping to get NHibernate to work with WPF. I am looking at EF4 as a way to dispense with all that. So, to get EF4 working with WPF, is it as simple as dropping my IQueryable<T> results into an ObservableCollection<T>. Does that preserve change-tracking on my EDM entity objects? Thanks for your help.

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• Finding a 3rd party QWidget with injected code & QWidget::find(hwnd)

  - by David Menard

  Hey, I have a Qt Dll wich I inject into a third-party Application using windows detours library: if(!DetourCreateProcessWithDll( Path, NULL, NULL, NULL, TRUE, CREATE_DEFAULT_ERROR_MODE | CREATE_SUSPENDED, NULL, NULL, &si, &pi, "C:\\Program Files\\Microsoft Research\\Detours Express 2.1\\bin\\detoured.dll", "C:\\Users\\Dave\\Documents\\Visual Studio 2008\\Projects\\XOR\\Debug\\XOR.dll", NULL)) and then I set a system-wide hook to intercept window creation: HHOOK h_hook = ::SetWindowsHookEx(WH_CBT, (HOOKPROC)CBTProc, Status::getInstance()->getXORInstance(), 0); Where XOR is my programs name, and Status::getInstance() is a Singleton where I keep globals. In my CBTProc callback, I want to intercept all windows that are QWidgets: HWND hwnd= FindWindow(L"QWidget", NULL); which works well, since I get a corresponding HWND (I checked with Spy++) Then, I want to get a pointer to the QWidget, so I can use its functions: QWidget* q = QWidget::find(hwnd); but here's the problem, the returned pointer is always 0. Am I not injecting my code into the process properly? Or am I not using QWidget::find() as I should? Thanks, Dave EDIT:If i change the QWidget::find() function to an exported function of my DLL, after setting the hooks (so I can set and catch a breakpoint), QWidgetPrivate::mapper is NULL.

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• XSLT apply templates in different order of xml reading.

  - by David

  I am new to this, so please bear with me... If we have the following xml fragment: <docXML> <PARRAFO orden='1' tipo='parrafo'> <dato> <etiqueta>Título</etiqueta> <tipo>TextBox</tipo> <valor>¿Cuándo solicitar el consejo genético?</valor> <longitud>1500</longitud> <comentario></comentario> <enlace></enlace> <target_enlace>I</target_enlace> </dato> <dato> <etiqueta>Texto</etiqueta> <tipo>Resumen</tipo> <valor>Resumen text</valor> <longitud>8000</longitud> <comentario></comentario> <enlace></enlace> <target_enlace></target_enlace> </dato> <dato> <etiqueta>Imagen</etiqueta> <tipo>TextBox</tipo> <valor>http://url/Imagenes/7D2BE6480CF4486CA288A75932606181.jpg</valor> <longitud>1500</longitud> <comentario></comentario> <enlace></enlace> <target_enlace>I</target_enlace> </dato> </PARRAFO> <PARRAFO orden='1' tipo='parrafo'> <dato> <etiqueta>Título</etiqueta> <tipo>TextBox</tipo> <valor>TextBox text</valor> <longitud>1500</longitud> <comentario></comentario> <enlace></enlace> <target_enlace>I</target_enlace> </dato> <dato> <etiqueta>Texto</etiqueta> <tipo>Resumen</tipo> <valor>Resumen text</valor> <longitud>8000</longitud> <comentario></comentario> <enlace></enlace> <target_enlace></target_enlace> </dato> </PARRAFO> </docXML> .. I am going to apply templates to each section depending on the value of the label "etiqueta" per node "dato" in "PARRAFO" by using the following XSLT: <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:msxsl="urn:schemas-microsoft-com:xsl" exclude-result-prefixes="msxsl"> <xsl:output method="html" encoding="iso-8859-1"/> <xsl:template match="/"> <xsl:variable name="xml-doc-parrafo" select="documentoXML/PARRAFO"/> <!-- PARRAFOS --> <xsl:choose> <xsl:when test="count($xml-doc-parrafo)>0"> <div class="seccion_1"> <xsl:for-each select="$xml-doc-parrafo"> <xsl:choose> <xsl:when test="self::node()[@tipo = 'parrafo']"> <div class="parrafo"> <xsl:for-each select="self::node()[@tipo = 'parrafo']/dato"> <xsl:variable name="dato" select="self::node()[@tipo = 'parrafo']/dato"/> <xsl:variable name="nextdato" select="following::dato[1]/@etiqueta"/> <xsl:choose> <xsl:when test="etiqueta = 'Título'"> <xsl:call-template name="imprimeTituloParrafo"> <xsl:with-param name="etiqueta" select="etiqueta"></xsl:with-param> <xsl:with-param name="valor" select="valor"></xsl:with-param> <xsl:with-param name="longitud" select="longitud"></xsl:with-param> <xsl:with-param name="comentario" select="comentario"></xsl:with-param> <xsl:with-param name="enlace" select="enlace"></xsl:with-param> <xsl:with-param name="target_enlace" select="target_enlace"></xsl:with-param> </xsl:call-template> </xsl:when> <xsl:when test="etiqueta = 'Subtitulo'"> <xsl:call-template name="imprimeSubtituloParrafo"> <xsl:with-param name="etiqueta" select="etiqueta"></xsl:with-param> <xsl:with-param name="valor" select="valor"></xsl:with-param> <xsl:with-param name="longitud" select="longitud"></xsl:with-param> <xsl:with-param name="comentario" select="comentario"></xsl:with-param> <xsl:with-param name="enlace" select="enlace"></xsl:with-param> <xsl:with-param name="target_enlace" select="target_enlace"></xsl:with-param> </xsl:call-template> </xsl:when> <xsl:when test="etiqueta = 'Imagen'"> <xsl:call-template name="imprimeImagenParrafo"> <xsl:with-param name="etiqueta" select="etiqueta"></xsl:with-param> <xsl:with-param name="valor" select="valor"></xsl:with-param> <xsl:with-param name="longitud" select="longitud"></xsl:with-param> <xsl:with-param name="comentario" select="comentario"></xsl:with-param> <xsl:with-param name="enlace" select="enlace"></xsl:with-param> <xsl:with-param name="target_enlace" select="target_enlace"></xsl:with-param> </xsl:call-template> </xsl:when> <xsl:when test="etiqueta = 'Pie Imagen'"> <xsl:call-template name="imprimePieImagenParrafo"> <xsl:with-param name="etiqueta" select="etiqueta"></xsl:with-param> <xsl:with-param name="valor" select="valor"></xsl:with-param> <xsl:with-param name="longitud" select="longitud"></xsl:with-param> <xsl:with-param name="comentario" select="comentario"></xsl:with-param> <xsl:with-param name="enlace" select="enlace"></xsl:with-param> <xsl:with-param name="target_enlace" select="target_enlace"></xsl:with-param> </xsl:call-template> </xsl:when> <xsl:when test="etiqueta = 'Texto'"> <xsl:call-template name="imprimeTextoParrafo"> <xsl:with-param name="etiqueta" select="etiqueta"></xsl:with-param> <xsl:with-param name="valor" select="valor"></xsl:with-param> <xsl:with-param name="longitud" select="longitud"></xsl:with-param> <xsl:with-param name="comentario" select="comentario"></xsl:with-param> <xsl:with-param name="enlace" select="enlace"></xsl:with-param> <xsl:with-param name="target_enlace" select="target_enlace"></xsl:with-param> </xsl:call-template> </xsl:when> <xsl:when test="etiqueta = 'Pie Parrafo'"> <xsl:call-template name="imprimePieParrafo"> <xsl:with-param name="etiqueta" select="etiqueta"></xsl:with-param> <xsl:with-param name="valor" select="valor"></xsl:with-param> <xsl:with-param name="longitud" select="longitud"></xsl:with-param> <xsl:with-param name="comentario" select="comentario"></xsl:with-param> <xsl:with-param name="enlace" select="enlace"></xsl:with-param> <xsl:with-param name="target_enlace" select="target_enlace"></xsl:with-param> </xsl:call-template> </xsl:when> </xsl:choose> </xsl:for-each> </div> </xsl:when> </xsl:choose> </xsl:for-each> </div> </xsl:when> <!-- si no hay resultados --> <xsl:otherwise> <br></br> <p style="text-align:center;">El documento no contiene datos.</p> </xsl:otherwise> </xsl:choose> </xsl:template> <xsl:template name="imprimeTituloParrafo"> <xsl:param name="etiqueta"></xsl:param> <xsl:param name="valor"></xsl:param> <xsl:param name="longitud"></xsl:param> <xsl:param name="enlace"></xsl:param> <xsl:param name="target_enlace"></xsl:param> <h2 class="titulo"> <xsl:choose> <xsl:when test="string-length($enlace) > 0"> <xsl:call-template name="imprimeEnlace"> <xsl:with-param name="valor" select="valor"></xsl:with-param> <xsl:with-param name="longitud" select="longitud"></xsl:with-param> <xsl:with-param name="comentario" select="comentario"></xsl:with-param> <xsl:with-param name="enlace" select="enlace"></xsl:with-param> <xsl:with-param name="target_enlace" select="target_enlace"></xsl:with-param> </xsl:call-template> </xsl:when> <xsl:otherwise> <xsl:value-of select="$valor"/> </xsl:otherwise> </xsl:choose> </h2> </xsl:template> <xsl:template name="imprimeSubtituloParrafo"> <xsl:param name="etiqueta"></xsl:param> <xsl:param name="valor"></xsl:param> <xsl:param name="longitud"></xsl:param> <xsl:param name="enlace"></xsl:param> <xsl:param name="target_enlace"></xsl:param> <h3 class="subtitulo"> <xsl:choose> <xsl:when test="string-length($enlace) > 0"> <xsl:call-template name="imprimeEnlace"> <xsl:with-param name="valor" select="valor"></xsl:with-param> <xsl:with-param name="longitud" select="longitud"></xsl:with-param> <xsl:with-param name="comentario" select="comentario"></xsl:with-param> <xsl:with-param name="enlace" select="enlace"></xsl:with-param> <xsl:with-param name="target_enlace" select="target_enlace"></xsl:with-param> </xsl:call-template> </xsl:when> <xsl:otherwise> <xsl:value-of select="$valor"/> </xsl:otherwise> </xsl:choose> </h3> </xsl:template> <xsl:template name="imprimeTextoParrafo"> <xsl:param name="etiqueta"></xsl:param> <xsl:param name="valor"></xsl:param> <xsl:param name="longitud"></xsl:param> <xsl:param name="enlace"></xsl:param> <xsl:param name="target_enlace"></xsl:param> <div class="texto"> <p class="texto"> <xsl:copy-of select="$valor/node()"/> </p> </div> </xsl:template> <xsl:template name="imprimeImagenParrafo"> <xsl:param name="etiqueta"></xsl:param> <xsl:param name="valor"></xsl:param> <xsl:param name="longitud"></xsl:param> <xsl:param name="comentario"></xsl:param> <xsl:param name="enlace"></xsl:param> <xsl:param name="target_enlace"></xsl:param> <xsl:choose> <xsl:when test="string-length($enlace) = 0"> <xsl:call-template name="imprimeImagen"> <xsl:with-param name="etiqueta" select="etiqueta"></xsl:with-param> <xsl:with-param name="valor" select="valor"></xsl:with-param> <xsl:with-param name="longitud" select="longitud"></xsl:with-param> <xsl:with-param name="comentario" select="comentario"></xsl:with-param> <xsl:with-param name="enlace" select="enlace"></xsl:with-param> <xsl:with-param name="target_enlace" select="target_enlace"></xsl:with-param> </xsl:call-template> </xsl:when> <xsl:otherwise> <a> <xsl:choose> <xsl:when test="$target_enlace/node() = 'E'"> <xsl:attribute name="target"> <xsl:text>_blank</xsl:text> </xsl:attribute> </xsl:when> <xsl:when test="$target_enlace/node() = 'I'"> <xsl:attribute name="target"> <xsl:text>_self</xsl:text> </xsl:attribute> </xsl:when> </xsl:choose> <xsl:attribute name="href"> <xsl:value-of select="$enlace"/> </xsl:attribute> <xsl:call-template name="imprimeImagen"> <xsl:with-param name="etiqueta" select="etiqueta"></xsl:with-param> <xsl:with-param name="valor" select="valor"></xsl:with-param> <xsl:with-param name="longitud" select="longitud"></xsl:with-param> <xsl:with-param name="comentario" select="comentario"></xsl:with-param> <xsl:with-param name="enlace" select="enlace"></xsl:with-param> <xsl:with-param name="target_enlace" select="target_enlace"></xsl:with-param> </xsl:call-template> </a> </xsl:otherwise> </xsl:choose> </xsl:template> <xsl:template name="imprimeImagen"> <xsl:param name="etiqueta"></xsl:param> <xsl:param name="valor"></xsl:param> <xsl:param name="longitud"></xsl:param> <xsl:param name="comentario"></xsl:param> <xsl:param name="enlace"></xsl:param> <xsl:param name="target_enlace"></xsl:param> <div class="imagen_pie"> <img> <xsl:attribute name="src"> <xsl:value-of select="$valor"/> </xsl:attribute> <xsl:attribute name="alt"> <xsl:value-of select="$comentario"/> </xsl:attribute> </img> </div> </xsl:template> <xsl:template name="imprimeEnlace"> <xsl:param name="valor"></xsl:param> <xsl:param name="longitud"></xsl:param> <xsl:param name="comentario"></xsl:param> <xsl:param name="enlace"></xsl:param> <xsl:param name="target_enlace"></xsl:param> <a> <xsl:choose> <xsl:when test="$target_enlace/node() = 'E'"> <xsl:attribute name="target"> <xsl:text>_blank</xsl:text> </xsl:attribute> </xsl:when> <xsl:when test="$target_enlace/node() = 'I'"> </xsl:when> <xsl:when test="$target_enlace/node() = 'D'"> </xsl:when> </xsl:choose> <xsl:attribute name="href"> <xsl:value-of select="enlace"/> </xsl:attribute> <xsl:value-of select="$valor"/> </a> </xsl:template> .... </xsl:stylesheet> I need to first apply the template image (if exists in this "PARRAFO") "Imagen" just before the text "Texto" Now apply the template text first and then the image because it is before the text node before the image as shown in xml Thanks a lot!

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• [ebp + 6] instead of +8 in a JIT compiler

  - by David Titarenco

  I'm implementing a simplistic JIT compiler in a VM I'm writing for fun (mostly to learn more about language design) and I'm getting some weird behavior, maybe someone can tell me why. First I define a JIT "prototype" both for C and C++: #ifdef __cplusplus typedef void* (*_JIT_METHOD) (...); #else typedef (*_JIT_METHOD) (); #endif I have a compile() function that will compile stuff into ASM and stick it somewhere in memory: void* compile (void* something) { // grab some memory unsigned char* buffer = (unsigned char*) malloc (1024); // xor eax, eax // inc eax // inc eax // inc eax // ret -> eax should be 3 /* WORKS! buffer[0] = 0x67; buffer[1] = 0x31; buffer[2] = 0xC0; buffer[3] = 0x67; buffer[4] = 0x40; buffer[5] = 0x67; buffer[6] = 0x40; buffer[7] = 0x67; buffer[8] = 0x40; buffer[9] = 0xC3; */ // xor eax, eax // mov eax, 9 // ret 4 -> eax should be 9 /* WORKS! buffer[0] = 0x67; buffer[1] = 0x31; buffer[2] = 0xC0; buffer[3] = 0x67; buffer[4] = 0xB8; buffer[5] = 0x09; buffer[6] = 0x00; buffer[7] = 0x00; buffer[8] = 0x00; buffer[9] = 0xC3; */ // push ebp // mov ebp, esp // mov eax, [ebp + 6] ; wtf? shouldn't this be [ebp + 8]!? // mov esp, ebp // pop ebp // ret -> eax should be the first value sent to the function /* WORKS! */ buffer[0] = 0x66; buffer[1] = 0x55; buffer[2] = 0x66; buffer[3] = 0x89; buffer[4] = 0xE5; buffer[5] = 0x66; buffer[6] = 0x66; buffer[7] = 0x8B; buffer[8] = 0x45; buffer[9] = 0x06; buffer[10] = 0x66; buffer[11] = 0x89; buffer[12] = 0xEC; buffer[13] = 0x66; buffer[14] = 0x5D; buffer[15] = 0xC3; // mov eax, 5 // add eax, ecx // ret -> eax should be 50 /* WORKS! buffer[0] = 0x67; buffer[1] = 0xB8; buffer[2] = 0x05; buffer[3] = 0x00; buffer[4] = 0x00; buffer[5] = 0x00; buffer[6] = 0x66; buffer[7] = 0x01; buffer[8] = 0xC8; buffer[9] = 0xC3; */ return buffer; } And finally I have the main chunk of the program: void main (int argc, char **args) { DWORD oldProtect = (DWORD) NULL; int i = 667, j = 1, k = 5, l = 0; // generate some arbitrary function _JIT_METHOD someFunc = (_JIT_METHOD) compile(NULL); // windows only #if defined _WIN64 || defined _WIN32 // set memory permissions and flush CPU code cache VirtualProtect(someFunc,1024,PAGE_EXECUTE_READWRITE, &oldProtect); FlushInstructionCache(GetCurrentProcess(), someFunc, 1024); #endif // this asm just for some debugging/testing purposes __asm mov ecx, i // run compiled function (from wherever *someFunc is pointing to) l = (int)someFunc(i, k); // did it work? printf("result: %d", l); free (someFunc); _getch(); } As you can see, the compile() function has a couple of tests I ran to make sure I get expected results, and pretty much everything works but I have a question... On most tutorials or documentation resources, to get the first value of a function passed (in the case of ints) you do [ebp+8], the second [ebp+12] and so forth. For some reason, I have to do [ebp+6] then [ebp+10] and so forth. Could anyone tell me why?

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• Objective C Array and Object Release

  - by david

  Hi, I have a newbie question regarding when to release the elements of a NSArray. See following pseudo code: NSMutalbeArray *2DArray = [[NSMutableArray alloc] initWithCapacity:10]; for (int i=0;i<10;i++) { NSMutableArray *array = [[MSMutableArray alloc] initWithCapacity:5]; for (int j=0;j<5;j++) { MyObject *obj = [[MyObject alloc] init]; [array addObject:obj]; [obj release]; } [2DArray addObject:array]; [array release]; } // use 2DArray to do something [2DArray release] My question here is, when I release 2DArray, do I need to explicitly release each of its element (array) first? Also, before I release the "array" object, do I need to release each of its element (MyObject) first? I am new to Objective C. Please help. thanks.

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• How to View Android Native Code Profiling?

  - by David R.

  I started my emulator with ./emulator -trace profile -avd emulator_15. I then tracked down the trace files to ~/.android/avd/rodgers_emulator_15.avd/traces/profile, where there are six files: qtrace.bb, qtrace.exc, qtrace.insn, qtrace.method, qtrace.pid, qtrace.static. I can't figure out what to do with these files. I've tried both dmtracedump and traceview on all of the files, but none seem to generate any output I can do anything with. How can I view the proportion of time taken by native method calls on Android?

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• Placing custom code in a System namespace

  - by David Brown

  Are there any best-practices that state custom code shouldn't be placed in a System namespace? Should System and its children be reserved for Microsoft code? I ask because I'm writing a class library that will be used across many projects and I'd like to keep things consistent by placing it in System.InteropServices (since it deals with P/Invoke).

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• SQL CE not loading from network share

  - by David Veeneman

  I installed VS 2010 RC yesterday, and suddenly, SQL Server CE isn't loading files from a network share. In projects compiled with VS 2008, if I try to open a SQL CE file located on a network share, I get an error that reads like this: Internal error: Cannot open the shared memory region. If I try to create a data connection in VS 2010 to a SQL CE file on a network share, I get this error: SQL Server Compact does not support opening database files on a network share. Can anyone shed any light on what's going on? Thanks.

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• Basic questions about SNMP

  - by David Hodgson

  Hi, I'm learning about SNMP, and writing some applications using it. I have some basic questions about the protocol: Do the agents store its state on the device itself? If there is a trap set on an agent, can you do a poll on the same OID to get the same information? Without using a mib file, is there a way to query a device for all of its information at once? If not, and you're writing your own customized manager, do you have to know the structure of what it reports up front? If you're setting up an agent to report, is there usually a way to control the frequency of how often it sends a trap? Or does it usually send a trap as often as some condition is satisfied?

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• How to use SLF4J Log4jLoggerAdapter

  - by David Wong

  I'm deploying an enterprise application on Weblogic 8.1 which has log4j 1.2.8 on it's classpath. I'm getting the following error with SLF4J 1.6.1: SLF4J versions 1.4.0 and later requires log4j 1.2.12 or later http://www.slf4j.org/codes.html#log4j_version Above link recommends using Log4jLoggerAdapter. I've changed Logger logger = LoggerFactory.getLogger(HelloWorld.class); logger.info("Hello World"); to Log4jLoggerAdapter logger = (Log4jLoggerAdapter) LoggerFactory.getLogger(HelloWorld.class); logger.info("Hello World"); However, I'm still encountering the error. Any advice on how to correctly implement this? Thanks

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• Best way to handle global state

  - by David

  Hi there, I was wondering if anyone could offer some advice on 'best practices' for using global state in a web application - specifically PHP, although im looking for generic best practices i.e. design patterns etc. At the moment I just use a static class, calling it Configs. I suppose this is similar to using the registry pattern but surely there is a more elegant way of handling global data within an application - i just cant think of a better way though.

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• Can't Build for iPhone Device

  - by David Beck

  After upgrading to the iPhone SDK 4.0, I get the following error when building for device: gcc-4.0: Invalid arch name : armv7 Command /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc-4.0 failed with exit code 1 Before, I was only building for armv6 (the default on pre 4.0 SDK's).

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• Ajax model binding of a complex type

  - by David G

  I am trying to do something along the lines of the following where I have a Controller with an method similar to: public ActionResult Insert(Author author) { //do something... } Where the Author type looks like: public class Author { public string FirstName { get; set; } public string LastName { get; set; } public Book[] Books { get; set; } public Author() { Books = new Book[0]; } } public class Book { public string Title { get; set; } public int NumberOfPages { get; set; } } From a page I want to submit data using JQuery and Ajax something like function addAuthor() { var auth = { 'FirstName': 'Roald', 'LastName': 'Dahl', 'Books': [ { 'Title': 'Charlie and the Chocolate Factory', 'NumberOfPages': 264 }, { 'Title': 'The Twits', 'NumberOfPages': 316 } ] }; $.ajax({ type: "GET", url: "/Insert", data: auth }); } MVC binds the Author object (FirstName and LastName are set) but doesn't bind the Books property. Why is that and how can I submit an object containing an Array (or a Collection) as a property through AJAX?

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• How to profile Doctrine in Zend Framework

  - by David Zapata

  Good day. I'm using Doctrine as ORM for my Zend Framework project. This is the first time I use it. I've followed the ZendCasts Doctrine chapters, and everything works for me, but I needed to perform some profiling; There is a Doctrine_Connection_Profiler class that should be used to profile the Doctrine Model internal queries, but I've tried to use it without success. I always get a "PDOException: You cannot serialize or unserialize PDOStatement instances" exception when I perform my Unit Tests. Here is a example: $conn = Doctrine_Manager::connection($doctrineConfig['dsn'], $dbconfname); ... if( APPLICATION_ENV != 'production'){ $obj_doctrine_profiler = new Doctrine_Connection_Profiler(); $conn->setListener($obj_doctrine_profiler); } All of my Unit Tests works if I comment/delete the $conn->setListener($obj_doctrine_profiler); line. This code block is located in my Bootstrap.php class; the weird thing is, the web application works just fine even with the mentioned code line. Thank you so much for your help. please excuse me if my english is not the best.

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• Forms/AD Authentication with Sharepoint

  - by David Lively

  All, I'm configuring Sharepoint to use forms authentication with LDAP/Active Directory. I'm new to Sharepoint, so if this is obvious, please point me in the right direction. Whenever I attempt to log in with a bad account or password, I get the very friendly (and correct) error message, The server could not sign you in. Make sure your user name and password are correct, and then try again. ... which implies that Sharepoint is able to communicate with AD. If I log in with a valid account, I get a page that says: (I added the grey bar to cover up the login name) Any suggestions? The account I'm logging in with is an administrator and has been granted full control in central administration. Also, interesting note: If I click the "sign in as a different user" link, and attempt to sign in using with the same credentials I just used, the site just redirects back to the login page, with no error or status message. If I then manually enter the site url, it again shows the "Error: Access Denied" page. Argh.

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• How can I use CSS pseudo-classes with GWT's UiBinder?

  - by David

  I've been using the in-line styles approach as recommended by GWT's UiBinder documentation. I'm puzzled, though, about how to use CSS pseudo-classes with UiBinder; for example, suppose I would otherwise (without UiBinder) have this CSS rule: #myLink:hover { background:blue } Can I implement that rule in UiBinder?

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• To PHP Namespace or not to PHP Namespace

  - by David

  ok, im relatively new to php programming and have been plodding along quite unaware that it is possible to actually use namespaces in php as I can in c# etc. Its really ugly though as they have decided to use backslashes - why! Anyway, I am interested in other php programmers views on whether namespaces will catch on in php and whether I should begin to use them now?

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• Select count() max() Date

  - by DAVID

  I have a table with shifts history along with emp ids. I'm using this query to retrieve a list of employees and their total shifts by specifying the range to count from: SELECT ope_id, count(ope_id) FROM operator_shift WHERE ope_shift_date >=to_date( '01-MAR-10','dd-mon-yy') and ope_shift_date <= to_date('31-MAR-10','dd-mon-yy') GROUP BY OPE_ID which gives OPE_ID COUNT(OPE_ID) 1 14 2 7 3 6 4 6 5 2 6 5 7 2 8 1 9 2 10 4 10 rows selected. How do I choose the employee with the highest number of shifts under the specified range date?

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• Importing a SQL Server 2005 Profile Trace Template into SQL 2008

  - by David Stein

  I'm using SQL Server 2008, but my ERP Vendor only offers a SQL 2005 trace template that they'd like me to run on my system. When I attempt to import it, I receive confirmation that it was successfully imported. However, it does not show up in the list of available templates. I've done this on two separate servers to the same effect. Is this a known problem with SQL Server 2008? I Googled unsuccessfully.

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• A matter of style

  - by David

  Would you write something like: enum XYZ_TYPE {X=1, Y=2, Z=3}; I saw it and the suffix _TYPE confuses me in the enum context. There is a strong prospect that it is because I am not bright.

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• Using Python How can I read the bits in a byte?

  - by David

  I have a file where the first byte contains encoded information. In Matlab I can read the byte bit by bit with var=fread(file,8, 'ubit1') then retrieve each bit by var(1),var(2), etc. Is there any equivalent bit reader in python?

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• C#/.NET equivalent to John Lakos - Large Scale C++ software design?

  - by David Archer

  I own and have read most of this book, a while back. Now I'm about to embark on a pretty large project and was wanting a refresher. Anyone got a recommendation of something similar that has a focus on C#/.NET. I know the principles remain, but if only for my readability.

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• Total stack sizes of threads in one process

  - by David

  I use pthreads_attr_getthreadsizes() to get default stack size of one thread, 8MB on my machine. But when I create 8 threads and allocate a very large stack size to them, say hundreds of MB, the program crash. So, I guess, shall ("Number of threads" x "stack size of per thread") shall less than a value(virtual memory size)?

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