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  • Accessing variables in other classes (Java)

    - by George
    Why doesn't the following program return 0, since I am accessing p from a new A(), which has not had main called on it? public class A { public int p = 0; public static void main(String[] args) { p = Integer.parseInt(args[0]); new B().go(); } } class B { public void go() { System.out.println(new A().p); } }

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  • ActionScript 3 - access variables in main application class from instantiated class

    - by Herter
    I have a initApp.as which instantiates a class which needs to access the "currentState" property and the States array as well. However we cannot get this to work as we cannot see how we can access this information. Within initApp.as currentState is accessed via "this.currentState". This does not work in the class which is instatiated within initApp.as. The following error is thrown: "Access of undefined property currentState." Anyone know how this can be solved?

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  • Assigning variables to pointers

    - by tys
    When compiling the below, the program seem to crash. However, there is no error in the compiling process. ... int *x; *x = 3; printf("%d", *x); ... From what I know, this program initializes the pointer *x to an integer value, and subsequently assigns the value of 3 to the deferenced pointer *x. So why does the program crashes? If I do this instead, the program can work normally. ... int *x, y; y = 3; x = &y; printf("%d", *x); ... So, what seems to be the problem with the skipping of the y variable, and instead, assigning the pointer *x directly to an integer value?

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  • Calling variables to run scripts

    - by user1416419
    I have a script that lists all files in a directory, lists them in alphabetical order, and places the number of the file before the filename. #!/bin/bash x=1 cd ~/bin for f in * do if [ -f $f ]; then echo "$x: $f" declare a$x=$f x=$(expr $x + 1) fi done read -p "What would you like to execute?: " num $num Output would be 1: file0 2: file1 3: file2 etc Running $num will execute the command a1 which is not a command. What I want to do is run what $a1 is equal to (ie file0). How can I do this?

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  • Solaris 11 ? Zone ???????????????

    - by Homma
    ???? Solaris 11 ????????? Global Zone ?? Non-global Zone ??????????????????????????? Global Zone ??????????????? Solaris 11 ???????????????????Global Zone ?? solaris-large-server ?????????????????????? ????????????????????????? http://docs.oracle.com/cd/E26924_01/html/E25785/gihfn.html#gkkqw > ?????????????????????????????????? > AI ????????solaris-large-server ?????????? > ?????????? solaris-large-server ???????????????????????? solaris-large-server ???????????????????????????? # pkg search -o fmri -H '*/solaris-large-server:depend:group:' archiver/gnu-tar compress/bzip2 compress/gzip compress/p7zip compress/unzip compress/zip crypto/pwgen developer/build/gnu-make ... Non-global Zone ??????????????? Solaris 11 ? Non-global Zone ??????????????? solaris-small-server ????????????????????????????????????????????? zone_default.xml ?????????????? # grep pkg /usr/share/auto_install/manifest/zone_default.xml <name>pkg:/group/system/solaris-small-server</name> solaris-small-server ???????????????????????? solaris-small-server ???????????????????????????? # pkg search -o fmri -H '*/solaris-small-server:depend:group:' compress/bzip2 compress/gzip compress/p7zip compress/unzip compress/zip developer/debug/mdb ... Non-global Zone ? solaris-large-server ??????????? Non-global Zone ? solaris-large-server ?????????????????????????????????????? # pkg install solaris-large-server Non-global Zone ?????????????????????????? Zone ????????????? solaris-large-server ??????????????????????????????? AI ????????????? ???? AI ???????????????????????? http://docs.oracle.com/cd/E26924_01/html/E25829/z.pkginst.ov-14.html#glxbn > AI ??????????????????????????????? > ??????????????? ??????

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  • Load dll's from Environment Variable Path from a service

    - by Paulo Manuel Santos
    We install Matlab Runtime on a machine, then we restart a .net windows service that invokes methods from the Matlab Runtime. The problem is that we receive TypeInitializationException errors until we restart windows. We think this happens because Environment Variables are not changed on services until restart and Matlab uses the %Path% variable to reference it's core DLL's. My question is, do you think I can change the %Path% variable so that Matlab will use it when referencing the core dll's for it's engine? Or is it possible to add a directory to the runtime DLL loading mechanism of .NET so that those Matlab core dll's would be referenced correctly without restarting the machine? Here is the exception we get System.TypeInitializationException: The type initializer for 'MatlabCalculation.Calculation' threw an exception. ---> System.TypeInitializationException: The type initializer for 'MathWorks.MATLAB.NET.Utility.MWMCR' threw an exception. ---> System.DllNotFoundException: Unable to load DLL 'mclmcrrt710.dll': Kan opgegeven module niet vinden. (Exception from HRESULT: 0x8007007E) at MathWorks.MATLAB.NET.Utility.MWMCR.mclmcrInitialize() at MathWorks.MATLAB.NET.Utility.MWMCR..cctor() --- End of inner exception stack trace --- at MatlabCalculation.Calculation..cctor() --- End of inner exception stack trace --- at MatlabCalculation.Calculation.Finalize() "Kan opgegeven module niet vinden" = "The specified module not found"

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  • Why does my data not pass into my view correctly?

    - by dmanexe
    I have a model, view and controller not interacting correctly, and I do not know where the error lies. First, the controller. According to the Code Igniter documentation, I'm passing variables correctly here. function view() { $html_head = array( 'title' => 'Estimate Management' ); $estimates = $this->Estimatemodel->get_estimates(); $this->load->view('html_head', $html_head); $this->load->view('estimates/view', $estimates); $this->load->view('html_foot'); } The model (short and sweet): function get_estimates() { $query = $this->db->get('estimates')->result(); return $query; } And finally the view, just to print the data for initial development purposes: <? print_r($estimates); ?> Now it's undefined when I navigate to this page. However, I know that $query is defined, because it works when I run the model code directly in the view.

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  • Cannot find symbol - variable

    - by Ben Garside
    I'm new to Java, and I'm trying to get user input, store each line of input as a variable and then return each value so that it can be passed on somewhere else. When I try and compile it is telling me that it can't find the variable magnitude. I'm assuming it won't find the others either. I'm guessing that this is because I've declare the variables inside of the "try" but don't know how to get it so that the return statement accepts them. Code is as follows: public Earthquake userAddEarthquake() { Scanner scanner = new Scanner(System.in); try{ // convert the string read from the scanner into Integer type System.out.println("Please Enter An Earthquake Magnitude: "); Double magnitude = Double.parseDouble(scanner.nextLine()); System.out.println("Please Enter The Earthquakes Latitude Position: "); scanner = new Scanner(System.in); Double positionLatitude = Double.parseDouble(scanner.nextLine()); System.out.print("Please Enter The Earthquakes Longitude Position: "); scanner = new Scanner(System.in); Double positionLongitude = Double.parseDouble(scanner.nextLine()); System.out.print("Please Enter The Year That The Earthquake Occured: "); scanner = new Scanner(System.in); int year = Integer.parseInt(scanner.nextLine()); System.out.println("Magnitude = " + magnitude); } catch(NumberFormatException ne){ System.out.println("Invalid Input"); } finally{ scanner.close(); } return new Earthquake(magnitude, positionLatitude, positionLongitude, year); }

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  • Static variable for communication among like-typed objects

    - by Dan Ray
    I have a method that asynchronously downloads images. If the images are related to an array of objects (a common use-case in the app I'm building), I want to cache them. The idea is, I pass in an index number (based on the indexPath.row of the table I'm making by way through), and I stash the image in a static NSMutableArray, keyed on the row of the table I'm dealing with. Thusly: @implementation ImageDownloader ... @synthesize cacheIndex; static NSMutableArray *imageCache; -(void)startDownloadWithImageView:(UIImageView *)imageView andImageURL:(NSURL *)url withCacheIndex:(NSInteger)index { self.theImageView = imageView; self.cacheIndex = index; NSLog(@"Called to download %@ for imageview %@", url, self.theImageView); if ([imageCache objectAtIndex:index]) { NSLog(@"We have this image cached--using that instead"); self.theImageView.image = [imageCache objectAtIndex:index]; return; } self.activeDownload = [NSMutableData data]; NSURLConnection *conn = [[NSURLConnection alloc] initWithRequest:[NSURLRequest requestWithURL:url] delegate:self]; self.imageConnection = conn; [conn release]; } //build up the incoming data in self.activeDownload with calls to didReceiveData... - (void)connectionDidFinishLoading:(NSURLConnection *)connection { NSLog(@"Finished downloading."); UIImage *image = [[UIImage alloc] initWithData:self.activeDownload]; self.theImageView.image = image; NSLog(@"Caching %@ for %d", self.theImageView.image, self.cacheIndex); [imageCache insertObject:image atIndex:self.cacheIndex]; NSLog(@"Cache now has %d items", [imageCache count]); [image release]; } My index is getting through okay, I can see that by my NSLog output. But even after my insertObject: atIndex: call, [imageCache count] never leaves zero. This is my first foray into static variables, so I presume I'm doing something wrong. (The above code is heavily pruned to show only the main thing of what's going on, so bear that in mind as you look at it.)

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  • Display gridview in new window

    - by Ricardo Deano
    Hello all. Just a bit of advice needed really in terms of how I should handle my current scenario: I have a web page that searches for products/category information the results of which are at present displayed in a gridview on the same page. However, said gridview is a bit of a beast and as such, I would like to have a page that the user searches for, a button is pressed and the subsequent gridview is displayed in a new window. Ultimately, I would like the user to be able to make multiple searches so that new windows can have multiple gridviews containing different data sets. My current thinking is to create session variables that can be pulled through onto 'the gridview page'. Having said that, I'm not sure that would work if multiple searches are created? I am also thinking I might be able to create said 'gridview window' using javascript but my concern here is the potential loss of functionality of the gridview i.e. paging, sorting, editing, etc. Does anyone have any thoughts or theories on this? What would be "best practise"? Any thoughts greatly appreciated and taken on board. PS: This is being developed in .net, using c# and LINQ. PPS: I'm a noob so be gentle!!

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  • How to catch HttpRequestValidationException in production

    - by bruno
    Hello all, I have this piece of code to handle the HttpRequestValidationException in my global.asax.cs file. protected void Application_Error(object sender, EventArgs e) { var context = HttpContext.Current; var exception = context.Server.GetLastError(); if (exception is HttpRequestValidationException) { Response.Clear(); Response.StatusCode = 200; Response.Write(@"<html><head></head><body>hello</body></html>"); Response.End(); return; } } If I debug my webapplication, it works perfect. But when i put it on our production-server, the server ignores it and generate the "a potentially dangerous request.form value was detected from the client" - error page. I don't know what happens exactly... If anybody knows what the problem is, or what i do wrong..? Also I don't want to set the validaterequest on false in the web.config. The server uses IIS7.5, And I'm using asp.net 3.5. Thanks, Bruno

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  • Access reading error when using class member variable

    - by bsg
    Hi, I have a class with private member variables declared in a header file. In my constructor, I pass in some filenames and create other objects using those names. This works fine. When I try to add another member variable, however, and initialize it in the constructor, I get an access reading violation. I sent the code to someone else and it works fine on his computer. Any idea what could be wrong? Here is the offending code: The .h file: class QUERYMANAGER { INDEXCACHE *cache; URLTABLE *table; SNIPPET *snip; int* iquery[MAX_QUERY_LENGTH]; int* metapointers[MAX_QUERY_LENGTH]; int blockpointers[MAX_QUERY_LENGTH]; int docpositions[MAX_QUERY_LENGTH]; int numberdocs[MAX_QUERY_LENGTH]; int frequencies[MAX_QUERY_LENGTH]; int docarrays[MAX_QUERY_LENGTH][256]; int qsize; public: QUERYMANAGER(); QUERYMANAGER(char *indexfname, char *btfname, char *urltablefname, char *snippetfname, char *snippetbtfname); ~QUERYMANAGER(); This is the .cpp file: #include "querymanagernew.h" #include "snippet.h" using namespace std; QUERYMANAGER::QUERYMANAGER(char *indexfname, char *btfname, char *urltablefname, char *snippetfname, char *snippetbtfname){ cache = new INDEXCACHE(indexfname, btfname); table = new URLTABLE(urltablefname); snip = new SNIPPET(snippetfname, snippetbtfname); //this is where the error occurs qsize = 0; } I am totally at a loss as to what is causing this - any ideas? Thanks, bsg

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  • How does this Singleton Web Class persists session data, even though session is not updated in the p

    - by Micah Burnett
    Ok, I've got this singleton-like web class which uses session to maintain state. I initially thought I was going to have to manipulate the session variables on each "set" so that the new values were updated in the session. However I tried using it as-is, and somehow, it remembers state. For example, if run this code on one page: UserContext.Current.User.FirstName = "Micah"; And run this code in a different browser tab, FirstName is displayed correctly: Response.Write(UserContext.Current.User.FirstName); Can someone tell me (prove) how this data is getting persisted in the session? Here is the class: using System; using System.Collections.Generic; using System.Linq; using System.Web; public class UserContext { private UserContext() { } public static UserContext Current { get { if (System.Web.HttpContext.Current.Session["UserContext"] == null) { UserContext uc = new UserContext(); uc.User = new User(); System.Web.HttpContext.Current.Session["UserContext"] = uc; } return (UserContext)System.Web.HttpContext.Current.Session["UserContext"]; } } private string HospitalField; public string Hospital { get { return HospitalField; } set { HospitalField = value; ContractField = null; ModelType = null; } } private string ContractField; public string Contract { get { return ContractField; } set { ContractField = value; ModelType = string.Empty; } } private string ModelTypeField; public string ModelType { get { return ModelTypeField; } set { ModelTypeField = value; } } private User UserField; public User User { get { return UserField; } set { UserField = value; } } public void DoSomething() { } } public class User { public int UserId { get; set; } public string FirstName { get; set; } }

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  • Why is my PHP string being converted to 1?

    - by animuson
    Ok, so here's the quick rundown. I have a function to generate the page numbers. This: <?php die($ani->e->tmpl->pages("/archive", 1, 15, 1, true)); ?> will output Single Page like expected. But this: <?php $page_numbers = $ani->e->tmpl->pages("/archive", 1, 15, 1, true); ?> <?= $page_numbers ?> will output a simple 1 to the page. Why is it getting converted to a 1? I would expect it to store the 'Single Page' string to the page_numbers variable and then output it (like an echo) exactly the same. EDIT: Running a var_dump($page_numbers) returns int(1)... Here is the entire function in context: <?php // other functions... function show_list() { global $ani; $page_numbers = $ani->e->tmpl->pages("/archive", 1, 15, 1, true); ob_start(); ?> <!-- content:start --> <?php $archive_result = $ani->e->db->build(array("select" => "*", "from" => "animuson_archive", "orderby" => "0-time", "limit" => 15)); while ($archive = $ani->e->db->fetch($archive_result)) { ?> <h2><a href="/archive/article/<?= $archive['aid'] ?>/<?= $archive['title_nice'] ?>"><?= $archive['title'] ?></a></h2> <!-- breaker --> <?php } ?> <?= var_dump($page_numbers) ?> <!-- content:stop --> <?php $ani->e->tmpl->process("box", ob_get_clean()); } // other functions... ?>

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  • bin-deploying DLLs banned in leiu of GAC on shared IIS 6 servers

    - by craigmoliver
    I need to solicit feedback about a recent security policy change at an organization I work with. They have recently banned the bin-deployment of DLLs to shared IIS 6 application servers. These servers host many isolated web application pools. The new rules require all DLLs to be installed in GAC. The is a problem for me because I bin-deploy several dlls including the ASP.NET MVC Framework, HTML Agility Pack, ELMAH, and my own shared class libraries. I do this because: Eliminates web application server dependencies to the Global Assembly Cache. Allows me (the developer) to have control of what goes on inside my application. Enables the application to deployed as a "package". Removes application deployment burden from the server administrators. Now, here are my questions. From a security perspective what are the advantages to using the GAC vs. bin-deployment? Is it possible to host multiple versions of the same DLL in the GAC? Has anyone run into similar restrictions?

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  • Meta tag depending of selected language and title

    - by lena
    Hi, I'm aware about Google ignore most of the time, meta tag and use content. (This is not the point here) I'm working on an existing web site, not created by me. I need a quick solution, I guess with variables. The website construction: (no known template system) index.html which is presentation page with language selection index.php which embeding menu, content, footer several content pages that are embedded by index.php What I need to do only for those 2 pages welcome_en.html and welcome_fr.html (these pages are embedded so no header possible on these page) to have different page title (browser title) and different META tag. Any solution is welcome Thanks extra information Language detection on index.php: <?php $lang = $_GET['lang']; $page = $_GET['page']; if ($_GET['page'] == "" || !$_GET['page']) { $page = "welcome"; } if ($_GET['lang'] == "" || !$_GET['lang']) { $lang = "_fr"; } ? <td><img src="images/ban02<?php echo "$lang" ?>.jpg" width="531" height="60" <?php if ($_GET['lang'] == "_fr" || $_GET['lang'] == "" || !$_GET['lang']) { echo "alt='text'";} else if ($_GET['lang'] == "_en") {echo "alt='text'"; } ?>></td> for the embeded menu, footer ect like this one <?php include "menu.php"; ?> for the embedded content <?php //echo "$page$lang.html"; $lang = preg_replace('/[^a-z0-9_ ]/i', '', $_GET['lang']); $page = preg_replace('/[^a-z0-9_ ]/i', '', $_GET['page']); include $page . $lang . ".html"; ?>

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  • Associative Array / Object can't be read in functions

    - by Matrym
    At the very beginning of the javascript file, I have: var lbp = {}; lbp.defaults = { minLength: 40 }; I can successfully alert it afterwards, with: alert(lbp.defaults.minLength); But as soon as I put it inside a function, when I alert, I get "Undefined". What gives, and how do I avoid this? Is it absolutely necessary to pass this variable into each function, for example, by doing: function(lbp) { alert(lbp.defaults.minLength); } I would have thought that defining it first, it would attain global scope and not be required to be passed in? Thanks in advance for enlightening me :) ==================================== EDIT: The problem seems like it might be my initialize function is itself defined within lbp. Is there any way to use this function var, and still use lbp vars inside it? lbp.initialize = function() { alert(lbp.defaults.minLength); }; The full bit of code looks like this: <script type="text/javascript"> var lbp = { defaults: { minLength: 40 } }; lbp.initialize = function() { alert(lbp.defaults.minLength); }; window.onload = lbp.initialize; </script>

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  • Retrieve the Value of An Integer Variable

    - by Abluescarab
    This is probably easily figured out (I feel very stupid right now), but I can't find a solution anywhere, for some reason. Perhaps I'm not searching for the right thing. And maybe it's in some beginner tutorial I haven't watched. Anyway, I was wondering how to retrieve the value of an integer variable in C++? I know you can use cin.getline() for string variables, but I received an error message when I attempted that with an integer variable (and rightfully so, I know it was wrong, but I was looking for a solution). My project is a Win32 console application. What I'm trying to do is ask a user to input a number, stored in the variable n. Then I take the value of n and perform various math functions with it. In my header file, I have string, windows, iostream, stdio, math, and fstream. Do I need to add another library? There's not much more to tell. I can post my code if I must. EDIT: cout << "TEST SINE"; cout << "\nPlease enter a number.\n\n"; cin >> n; break; Here's the code I'm trying to use. Is this all I need to do? If so, how do I incorporate the variable so I can test it using sin, cos, and tan? Yet again, thanks ahead of time.

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  • The linking is not done (gcc compilation)

    - by Moons
    Hello everyone! So i have this issue : i am declaring some extern global variables in my C program. If I don't use the -c option for gcc, i get undefined references errors. But with that -c option, the linking is not done, which means that i don't have an executable generated. So how do I solve this? Here is my makefile. As I am not good with writing makefiles, I took one from another project then I changed a few things. So maybe I'm missing something here. # Makefile calculPi INCL = -I$(INCL_DIR) DEFS = -D_DEBUG_ CXX_FLAGS =-g -c -lpthread -lm CXX = gcc $(CXX_FLAGS) $(INCL) $(DEFS) LINK_CXX = gcc OBJ = approx.o producteur.o sequentialApproximation.o main.o LINKOBJ = approx.o producteur.o sequentialApproximation.o main.o BIN = calculPi.exe RM = rm -fv all: calculPi.exe clean: ${RM} *\~ \#*\# $(OBJ) clean_all: clean ${RM} $(BIN) cleanall: clean ${RM} $(BIN) $(BIN): $(OBJ) $(CXX) $(LINKOBJ) -o "calculPi.exe" main.o: main.c $(CXX) main.c -o main.o $(CXX_FLAGS) approx.o: approx.c approx.h $(CXX) -c approx.c -o approx.o $(CXX_FLAGS); producteur.o: producteur.c producteur.h $(CXX) -c producteur.c -o producteur.o $(CXX_FLAGS); sequentialApproximation.o : sequentialApproximation.c sequentialApproximation.h $(CXX) -c sequentialApproximation.c -o sequentialApproximation.o $(CXX_FLAGS);

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  • PHP Session variable isset(..)=1 after session_start()

    - by Nicsoft
    Hello! I guess I am not understanding the scope of session variables, or the session itself, in PHP, hence this question: This is my code if(!session_id()==""){ echo "Getting rid of session"."</br>"; session_destroy(); } echo "Before session_start(): ".isset($_SESSION["first_date_of_week"])."</br>"; session_start(); echo "After session_start(): ".isset($_SESSION["first_date_of_week"])." ".$_SESSION["first_date_of_week"]->format("Y-m-d")."</br>"; The output is: Before session_start(): After session_start(): 1 2011-01-09 How come that when doing the isset(..) on the session variable it is set directly after starting the session, even though I haven't even used it or set it yet? It does, however, still have the same value as before. Also, session_id()="" since the if-clause is never triggered. I never kill the session, how come it is set to ""? I.e. I refresh the page and expects the session to still be alive. Using the isset(..) function is then pretty useless testing if it has been set already... Thanks in advance! /Niklas

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  • Use of unassigned local variable 'xxx'

    - by Tomislav
    I'm writing a database importer from our competitors to ours database:) I have a code generator which create Methods form import to our database like public void Test_Import_Customer_1() // variables string conn; string sqlSelect; string sqlInsert; int extID; string name; string name2; DateTime date_inserted; sqlSelect="select id,name,date_inserted from table_competitors_1"; oledbreader reader = new GetOledbRader(sqlString,conn); while (reader.read()) { name=left((string)myreader["name"],50); //limitation of my field date_inserted=myreader["date_inserted"]; sqlInsert=string.Format("insert into table(name,name2,date_inserted)values '{0}', '{1}', {2})",name,name2,date_inserted); //here is the problem name2 "Use of unassigned local variable" ExecuteSQL(sqlInsert) } As different companies database has different fields i can not set value to each variable and there is a big number of tables to go one variable to next. like sqlSelect_Company_1 = "select name,date_inserted from table_1"; sqlSelect_Company_2 = "select name,name2 from table_2"; is there a way to override the typing of each variable one by one with default values?

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  • What would be a better implementation of shared variable among subclass

    - by Churk
    So currently I have a spring unit testing application. And it requires me to get a session cookie from a foreign authentication source. Problem what that is, this authentication process is fairly expensive and time consuming, and I am trying to create a structure where I am authenticate once, by any subclass, and any subsequent subclass is created, it will reuse this session cookie without hitting the authentication process again. My problem right now is, the static cookie is null each time another subclass is created. And I been reading that using static as a global variable is a bad idea, but I couldn't think of another way to do this because of Spring framework setting things during run time and how I would set the cookie so that all other classes can use it. Another piece of information. The variable is being use, but is change able during run time. It is not a single user being signed in and used across the board. But more like a Sub1 would call login, and we have a cookie. Then multiple test will be using that login until SubX will come in and say, I am using different credential, so I need to login as something else. And repeats. Here is a outline of my code: public class Parent implements InitializingBean { protected static String BASE_URL; public static Cookie cookie; ... All default InitializingBean methods ... afterPropertiesSet() { cookie = // login process returns a cookie } } public class Sub1 extends Parent { @resource public String baseURL; @PostConstruct public void init() { // set parents with my baseURL; BASE_URL = baseURL; } public void doSomething() { // Do something with cookie, because it should have been set by parent class } } public class Sub2 extends Parent { @resource public String baseURL; @PostConstruct public void init() { // set parents with my baseURL; BASE_URL = baseURL; } public void doSomethingElse() { // Do something with cookie, because it should have been set by parent class } }

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  • Javascript int variable from ASP.NET MVC Model data?

    - by Anders Svensson
    I need to get model data into a javascript variable and use it as an int to compare values. But I can only figure out how to get the model data as strings, otherwise the compiler complains. So how can I get the max and taskBudgetHours as int variables in the Javascript? <script type="text/javascript"> $(document).ready(function () { $("#taskForm").submit(function (e) { var taskBudgetHours = $('#BudgetHours').val(); var max = '<%: Model.Project.RemainingBudgetHours %>'; var test = 'test'; alert(taskBudgetHours); alert(max); if (taskBudgetHours <= max) { //This doesn't work, seems to treat it as strings... return true; } else { //Prevent the submit event and remain on the screen e.preventDefault(); alert('There are only ' + max + ' hours left of the project hours.'); return false; } }); return; }); </script>

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  • How do I access abstract private data from derived class without friend or 'getter' functions in C++?

    - by John
    So, I am caught up in a dilemma right now. How am I suppose to access a pure abstract base class private member variable from a derived class? I have heard from a friend that it is possible to access it through the base constructor, but he didn't explain. How is it possible? There are some inherited classes from base class. Is there any way to gain access to the private variables ? class Base_button { private: bool is_vis; Rect rButton; public: // Constructors Base_button(); Base_button( const Point &corner, double height, double width ); // Destructor virtual ~ Base_button(); // Accessors virtual void draw() const = 0; bool clicked( const Point &click ) const; bool is_visible() const; // Mutators virtual void show(); virtual void hide(); void move( const Point &loc ); }; class Button : public Base_button { private: Message mButton; public: // Constructors Button(); Button( const Point &corner, const string &label ); // Acessors virtual void draw() const; // Mutators virtual void show(); virtual void hide(); }; I want to be able access Rect and bool in the base class from the subclass

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