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  • How to return variable datatypes from a method

    - by Praesagus
    I have a method whose callers require different datatypes. I could repeat the requisite conversions a dozen times by putting them in each of the callers, but it seems much more efficient to do it once in the called method. public String myMethod(String myArg) { return DoSomething(myArg); } public Int32 myMethod(String myArg) { return Convert.ToInt32(DoSomething(myArg)); } private String DoSomething(key) { return SomeList[key]; } If I have multiple methods that pull data from SomeList and have to utilize different data types then in each I have to do a type conversion. Examples might be session variables or query or form requests or any other number of things. In VB I could say Function myMethod(myArg as String) as Variant myMethod=DoSomething(myArg) End Function Sorry if the original post was not very clear. I hope this makes more sense. Thanks

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  • ExtJS combo setting problem

    - by Hubidubi
    Hi I run into an interesting problem while was using combos in input form. My form contains combos that get data from json stores. It works fine when adding new record, but when the form is opened for editing an existing record, sometimes the id appears as selected not its value (eg: there's 5 instead of "apple"). I think it tries to set the value before it finishes loading the combo. Is there a way to solve this? I put the code down here that creates combos: function dictComboMaker( store, fieldLabel, hiddenName, name, allowBlank, myToolTipp ) { comboo = { xtype : 'combo', id: 'id-'+name, allowBlank: allowBlank, fieldLabel : fieldLabel, forceSelection : true, displayField : 'value', valueField : 'id', editable: false, name: name, hiddenName : hiddenName, minChars : 2, mode: 'remote', triggerAction : 'all', store : store }; function dictJsonMaker(url) { store = new Ext.data.JsonStore({ root : 'results', // 1 fields : [ 'id','value' ], url : url, autoLoad: true}); return store; } var comboKarStore = dictJsonMaker('/service/karok'); var comboKar= dictComboMaker(comboKarStore, 'Kar', 'karid', 'kar', false, ''); // then comboKar is added to the form Hubidubi

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  • Using malloc/free in Objective-C object

    - by Itamar Katz
    I have a class AudioManager with a member of type AudioBufferList *. (This is a struct declared in the CoreAudio framework). Since AudioBufferList is not a NSObject, I cannot retain it, so I have to alloc/free it (correct me if I'm wrong). My question is, where is the 'right' place to free it? Currently I am doing it in the dealloc method of AudioManager. If I understand correctly, this method is invoked automatically once the release message is sent to the instance of AudioManager --- is that true? Is there any other recommended practice regarding using alloc/free on non-objects members of Objective-C objects? Edit: From Apples documentation: Subclasses must implement their own versions of dealloc to allow the release of any additional memory consumed by the object—such as dynamically allocated storage for data or object instance variables owned by the deallocated object. After performing the class-specific deallocation, the subclass method should incorporate superclass versions of dealloc through a message to super: Which makes things a little bit clearer - but more insights are appreciated.

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  • VB Project Template for Monobjc in MonoDevelop?

    - by Ira Rainey
    After installing Monobjc and playing around with the Monobjc Application Project under C# in MonoDevelop, I noticed that there is only an empty Monobjc project under the VB section. Obviously this template adds all the correct references but doesn't add the basic files for the application to run. I've tried creating a class with: Imports System Imports Monobjc Imports Monobjc.Cocoa Class Application Public Sub Main(Byval args() As String) ObjectiveCRuntime.LoadFramework("Cocoa") ObjectiveCRuntime.Initialize() End Sub End Class Obviously I'm not loading the NIB there either, as I haven't added that in either, but if I try to build this I get: /Source/VB_Sample/VB_Sample/<MyGenerator>(1,1): Error VBNC30420: Could not find a 'Sub Main' in ''. (VBNC30420) (VB_Sample) Where should I be putting the Sub Main? Also if I add in a xib file from IB, how do I generate the designer code for the partial AppDelegate class? Any help would be appreciated.

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  • Concurrency Problem in Java ...

    - by Tara Singh
    I am designing a client-server chat application in Java. This is a secure application where the messages are exchanged using cryptographic algorithms. I have one server and it can support many clients. My problem is that when one client logs on the server it works fine, but when another user logs into the system, the server starts giving me bad padding exceptions for the encrypted text. I am not able to figure out the problem, according to my logic, when new connection request to server is made, the server creates a thread for listening to the client. Is it possible that once the instance of thread class is created, it does all the processing correctly for the first client, but not for the second client because the variables in server listener thread class already have some previous value, and thus the encrypted text is not decrypted properly? Please advise how I can make this process more robust so that the number of clients does not affect how well the server functions.

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  • Definition could not be found error compiling ClassReference in CSS file to Swf file

    - by Roaders
    Hi All I am compiling my css files to swf files and loading them at run time. I have no problem compiling these and using ClassReference statements most of the time: .miniCashLadderGridStyle { color : #2a2a2a; backgroundAlpha : 0; borderSkin : ClassReference("mx.skins.ProgrammaticSkin"); headerSortSeparatorSkin : ClassReference("mx.skins.ProgrammaticSkin"); horizontalSeparatorSkin : ClassReference("company.assets.GridHorzDivLine"); verticalSeparatorSkin : ClassReference("company.assets.GridVertDivLine"); } That works fine. The assets come from a seperate swc, However this: header-background-skin : ClassReference("company.view.grid.skin.HeaderBackground"); Does not work. The difference is that the HeaderBackground is a class in the same project as the css file. That does compiel fine if I move the style into my mxml file though. I wonder if the compiler uses different source paths when compiling the css fiels or something. This is in FlashBuilder 4 build 269271 SDK 13963

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  • Reading SAML Attributes from SAML Token

    - by Shani
    I am loading SAML Token from XML file. string certificatePath = @"D:\Projects\SAMLDemo\Server.pfx"; X509Certificate2 cert = new X509Certificate2(certificatePath, "shani"); string samlFilePath = @"D:\Projects\SAMLDemo\saml.xml"; XmlReader reader = XmlReader.Create(samlFilePath); List<SecurityToken> tokens = new List<SecurityToken>(); tokens.Add(new X509SecurityToken(cert)); SecurityTokenResolver outOfBandTokenResolver = SecurityTokenResolver.CreateDefaultSecurityTokenResolver(new ReadOnlyCollection<SecurityToken>(tokens), true); SecurityToken securityToken = WSSecurityTokenSerializer.DefaultInstance.ReadToken(reader, outOfBandTokenResolver); SamlSecurityToken deserializedSaml = securityToken as SamlSecurityToken; How can I read the SAML attributes from deserializedSaml ? I need string values for the attributes.

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  • dismissModalViewControllerAnimated: crashes in Simulator but not on phone

    - by Jon
    I'm doing the following: [self.parentViewController dismissModalViewControllerAnimated:YES] This code fails using the Simulator but works with no issues on the phone itself. The Simulator's console shows no erros. I used NSLog statements to pinpoint this line of code as the culprit. When running on the phone, however, the console(windoworganizer) shows that the above code is executed and the application proceeds forward with no problem. When running the code in debugger, the following statement appears at the bottom of the Xcode debug window: GDB: Data Formatters temporarily unavailable, will re-try after a 'continue'. (Not safe to call dlopen at this time.) Then a window dispalys stating: Loading 43672 stack frames. (that sounds bad) In the debug window the following line appears numerous times: [UIView(Hierarchy) _makeSubtreePerformSelector:withObject:withObject:copySublayers:] Without getting too deep into my code, does anyone know about or have experience with this type of condition? Thanks

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  • To subclass or not to subclass

    - by poulenc
    I have three objects; Action, Issue and Risk. These all contain a nunber of common variables/attributes (for example: Description, title, Due date, Raised by etc.) and some specific fields (risk has probability). The question is: Should I create 3 separate classes Action, Risk and Issue each containing the repeat fields. Create a parent class "Abstract_Item" containing these fields and operations on them and then have Action, Risk and Issue subclass Abstract_Item. This would adhere to DRY principal.

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  • zend_form ViewScript decorator / passing arguments

    - by timpone
    I have a form that is extend from Zend_Form. I am placing the form into a ViewScript decorator like this: $this->setDecorators(array(array('ViewScript', array('viewScript' => 'game/forms/game-management.phtml')))); I'd like to pass in a variable to this ViewScript but am not sure how this could be done. Since the partial renders out as a Zend_View (allowing $this-app_store_icon for rendering), it seems like there should be a way to pass variables to be rendered. I tried the following but to no avail. $this->setDecorators(array(array('ViewScript', array('viewScript' => 'game/forms/game-management.phtml'),array('app_store_picon'=>$current_app_store_picon)))); Any help on how to get this done would be appreciated. thanks

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  • Lock Free Queue -- Single Producer, Multiple Consumers

    - by Shirish
    Hello, I am looking for a method to implement lock-free queue data structure that supports single producer, and multiple consumers. I have looked at the classic method by Maged Michael and Michael Scott (1996) but their version uses linked lists. I would like an implementation that makes use of bounded circular buffer. Something that uses atomic variables? On a side note, I am not sure why these classic methods are designed for linked lists that require a lot of dynamic memory management. In a multi-threaded program, all memory management routines are serialized. Aren't we defeating the benefits of lock-free methods by using them in conjunction with dynamic data structures? I am trying to code this in C/C++ using pthread library on a Intel 64-bit architecture. Thank you, Shirish

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  • smart reversing of compressed javascript with obscured variable & function names ?

    - by Jerome WAGNER
    Hello, I want to know if there exists a tool to help in reversing a compressed javascript that has obscure variable names. I am not looking for a pretty-printing beautifier, but for a tool that actually know a to change & propagate variable name choices. Let me be more specific : - some of the functions belong to the 'public' API and i want to impose readable argument names in their prototypes - there are intermediary variables for document, window and other browser idioms I would like to give this knowledge to the tool and then let it create another javascript where the knowledge would have been correctly propagated. thanks Jerome Wagner

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  • Problem comparing keys in Appengine/Python

    - by ana
    I'm trying to create a relationship between "tables" with Appengine/Python. Imagine I have a "table" for items, and a table for colors. I save the color of an item by saving the color key as an atribute of the item. That's working well, but this particular piece of code is not working: <select id="colorKey" name="colorKey"> {% for color in colors %} <option value="{{ color.key }}"{% if color.key = item.colorKey %} selected="selected"{% endif %}> {{ color.name }} - {{ item.colorKey }} - {{ color.key }} </option> {% endfor %} </select> Since the {{ item.colorKey }} and {{ color.key }} variables are actually the same chain of characters, I only can think in a problem with the types. {{ item.colorKey }} is a string for sure. But maybe {{ color.key }} is not?

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  • Bookmarklet fails in IE8

    - by songdogtech
    Anyone want to take a stab at why this bookmarklet fails in IE8? It turns all text uppercase in Friefox and Safari. But in IE8, it simply stalls with "loading..." I'll admit I'm a beginner with Javascript: javascript:(function(){%20var%20i,t,D=document;for(i=0;t=D.getElementsByTagName ('textarea')[i];++i)t.value=t.value.toUpperCase();%20var%20newSS,styles='* {text-transform:uppercase}input,textarea{text-transform:none}';if(D.createStyleSheet) {D.createStyleSheet(%22javascript:'%22+styles+%22'%22);} else{newSS=D.createElement('link');newSS.rel='stylesheet'; newSS.href='data:text/css,'+escap e(styles);D.documentElement.childNodes[0].appendChild(newSS);}})()

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  • Newbie questions about COM

    - by smwikipedia
    Hi, I am quite new to COM so the question may seem naive. Q1. About Windows DLL Based on my understanding, a Windows DLL can export functions, types(classes) and global variables. Is this understanding all right? Q2. About COM My naive understanding is that: a COM DLL seems to be just a new logical way to organize the functions and types exported by a standard Windows DLL. A COM DLL exports both functions such as DllRegisterServer() and DllGetClassObject(), and also the Classes which implements the IUnknown interface. Is this understanding all right? Q3. *.def & *.idl *.def is used to define the functions exported by a Windows DLL in the traditional way, such as DllGetClassObject(). *.idl is used to define the interface implemented by a COM coclass. Thanks in advance.

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  • Java ByteBuffer to VB .NET

    - by user1797258
    I have this java code : ByteBuffer p = ByteBuffer.allocate(packet.length - 10 + 14); p.order(ByteOrder.LITTLE_ENDIAN); p.putInt(packet.length); p.putInt(packet.request_id); p.putInt(packet.type); p.put(packet.paylod); p.put((byte) 0); p.put((byte) 0); And i want to translate it to VB .NET I started with this : Dim p(packet.length - 10 + 14) As Byte But after i dont know how to put these variables in the right way

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  • Migrating from VisualSVN on windows to linux based svn

    - by Jonathan
    I'd like to migrate my svn repository from my local computer running windows and VisualSVN 2.1.2 to an svn app on webfaction (my Linux hosting solution). Initially I tried dumping the svn: svnadmin dump *path_to_repository* *dumpfile_name* and loading it on the Linux machine svnadmin load *dumpfile_name* I received the following error: svnadmin: Can't open file '*dumpfile_path_and_name*/format': Not a directory I found that on my Windows machine I do have a format folder under the repository. So I copied the entire repository to the Linux machine and tried: svnadmin load *path_to_repository_copy* I received the following error: svnadmin: Expected FS format between '1' and '3'; found format '4' what should I do?

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  • R Question: calculating deltas in a timeseries

    - by Jörg Beyer
    I have a timeseries of samples in R: > str(d) 'data.frame': 5 obs. of 3 variables: $ date: POSIXct, format: "2010-03-04 20:47:00" "2010-03-04 21:47:00" ... $ x : num 0 10 11 15.2 20 $ y : num 0 5 7.5 8.4 12.5 > d date x y 1 2010-03-04 20:47:00 0.0 0.0 2 2010-03-04 21:47:00 10.0 5.0 3 2010-03-04 22:47:00 11.0 7.5 4 2010-03-04 23:47:00 15.2 8.4 5 2010-03-05 00:47:00 20.0 12.5 In this example samples for x and y are taken every hour (but the time delta is not fix). The x and y values are always growing (like a milage counter in a car). I need the deltas, how much was the growth in between, something like this: 1 2010-03-04 20:47:00 0.0 0.0 2 2010-03-04 21:47:00 10.0 5.0 3 2010-03-04 22:47:00 1.0 2.5 4 2010-03-04 23:47:00 4.2 0.9 5 2010-03-05 00:47:00 4.8 4.1 And I also need the detlas per time (x and y delta, divided by the time - delta per hour) How would I do this in R?

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  • call by value-result in Pascal

    - by Luciano Lorenti
    How can i simulate calling by value-result in this example. Without adding variables and without change a variable name.? Program one; var x:integer; Function two():integer; begin x:=x+1; dos:=x; end; Procedure three(x:integer); begin x:=x+5; x:=two(); end; begin x:=8; trhee(x); write(x); end.

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  • Wire the homepage so that it fires off a Push notification message to my iPhone every time someone l

    - by fwd4
    I looking for a simple way to wire the homepage of my website so that it fires off a Push notification message to my iPhone every time someone lands on the page (just visiting in their browser). I'm aware this could become annoying! I currently send regular notifications to my iPhone using cron and curl to check sites / RSS feeds for change and then fire to to the Prowl API who in turn send it to my iPhone - like so: curl https://prowl.weks.net/publicapi/add -F apikey=$apikey -F priority=$priority -F application="$app" -F event="$eventname" -F description="$description" Could I do something similar from with the HTML of the homepage - call a script on my server which in turn fires a similar curl request above? Maybe with Javascript or PHP? Ideally I'd like the loading and rendering of me webpage to be uninterrupted by the call. Hat tip to Prowl - http://prowl.weks.net/api.php and to flx.me Both of which I use to make what I have already working.

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  • Emacs: annoying Flymake dialog box.

    - by baol
    Hello I have the following lines in my ~/.emacs.d/init.el (custom-set-variables '(flymake-allowed-file-name-masks (quote ( ("\\.cc\\'" flymake-simple-make-init) ("\\.cpp\\'" flymake-simple-make-init))))) (add-hook 'find-file-hook 'flymake-find-file-hook) When I open a cc/cpp file that has a Makefile with the following content in the same folder I get proper on-the-fly compilation and error reporting (Flymake will check the syntax and report errors and warnings during code editing) .PHONY: check-syntax check-syntax: $(CXX) -Wall -Wextra -pedantic -fsyntax-only $(CHK_SOURCES) The problem is that when I open a .cc file that has no corresponding Makefile i get an annoying dialog box that warns me about flymake being disabled for every file opened. Is there some hook I can use to disable that warning? Can you provide sample elisp code and explanation on how you found the proper hook?

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  • How can I enable Pascal casing by default when using Jackson JSON in Spring MVC?

    - by bhilstrom
    I have a project that uses Spring MVC to create and handle multiple REST endpoints. I'm currently working on using Jackson to automatically handle the seralization/deserialization of JSON using the @RequestBody and @ResponseBody annotations. I have gotten Jackson working, so I've got a starting point. My problem is that our old serialization was done manually and used Pascal casing instead of Camel casing ("MyVariable" instead of "myVariable"), and Jackson does Camel casing by default. I know that I can manually change the name for a variable using @JsonProperty. That being said, I do not consider adding "@JsonProperty" to all of my variables to be a viable long-term solution. Is there a way to make Jackson use Pascal casing when serializing and deserializing other than using the @JsonProperty annotation?

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  • Simple ranking algorithm in Groovy

    - by Richard Paul
    I have a short groovy algorithm for assigning rankings to food based on their rating. This can be run in the groovy console. The code works perfectly, but I'm wondering if there is a more Groovy or functional way of writing the code. Thinking it would be nice to get rid of the previousItem and rank local variables if possible. def food = [ [name:'Chocolate Brownie',rating:5.5, rank:null], [name:'Pizza',rating:3.4, rank:null], [name:'Icecream', rating:2.1, rank:null], [name:'Fudge', rating:2.1, rank:null], [name:'Cabbage', rating:1.4, rank:null]] food.sort { -it.rating } def previousItem = food[0] def rank = 1 previousItem.rank = rank food.each { item -> if (item.rating == previousItem.rating) { item.rank = previousItem.rank } else { item.rank = rank } previousItem = item rank++ } assert food[0].rank == 1 assert food[1].rank == 2 assert food[2].rank == 3 assert food[3].rank == 3 // Note same rating = same rank assert food[4].rank == 5 // Note, 4 skipped as we have two at rank 3 Suggestions?

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  • How do I obtain a new stateful session bean in a servlet thread?

    - by FarmBoy
    I'm experimenting with EJB3 I would like to inject a stateful session bean into a servlet, so that each user that hits the servlet would obtain a new bean. Obviously, I can't let the bean be an instance variable for the servlet, as that will be shared. And apparantly injecting local variables isn't allowed. I can use the new operator to create a bean, but that doesn't seem the right approach. Is there a right way to do this? It seems like what I'm trying to do is fairly straightforward, after all, we would want each new customer to find an empty shopping cart.

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  • OpenLayers Projections.

    - by Jenny
    I can succesfully do: point.transform(new OpenLayers.Projection("EPSG:900913"), new OpenLayers.Projection("EPSG:4326")); To a point that is in the google format (in meters), but when I want to do the reverse: point.transform(new OpenLayers.Projection("EPSG:4326"), new OpenLayers.Projection("EPSG:900913")); to a point that is in 4326 (regular lat/lon format), I am having some issues. Any negative value seems to become NaN (not a number) when I do the transformation. Is there something about the transformation in reverse that I don't understand? Edit: Even worse, when I have no negative values, the coordinates seem off. I am getting the coordinates by drawing a square on the screen, then saving those coordinates to a database and loading them later. I can draw a square near the tip of africa (positive coordinates), and then when it loads it's near the top of africa, in the atlantic ocean. I'm definitely doing something wrong....

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