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  • operator "new" returning a non-local heap pointer for only one class ?

    - by KaluSingh Gabbar
    Language : C++ Platform : Windows Server 2003 I have an exe calling a DLL, in which when I allocate (new) the memory for class A (which is in DLL) it returns me a non-local heap pointer. I try to new other classes which are in DLL and "new" returns a valid heap pointer for them, its only Class A which is not being allocated properly. I am on windows and validating the heap by this function call : _CrtIsValidHeapPointer ( (const void *) pPtr ) I am seriously confused why this only happens with new-ing Class A and no other class ? (All Native Code)

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  • Cakephp change model's title without rename model/dbtable

    - by Vincent
    I have a table that store all information about class, but because Class is reserved for class name I had to rename the table from classes to types. But in the view section I need it to be displayed as "Class", including the Paginator links. Anyway to achieve this by adding something in the Type model, without completely customize Paginator and and all view compoenents?

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  • Is it possible to implement Separated Interface in PHP?

    - by sunwukung
    I recently asked a question regarding the resolution of dependencies between Unit of Work and Data Mapper classes: http://stackoverflow.com/questions/3012657/dependency-injection-and-unit-of-work-pattern - (which was answered by Gabor de Mooij - thx) In PoEAA, Martin Fowler suggests using Separated Interface to manage these dependencies. My question is simple - is it actually possible to implement this pattern in PHP, or is it specific to Java interfaces? I've searched high and low and it's hard to find references to this pattern anywhere outside of PoEAA.

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  • What is the most elegant way to implement a business rule relating to a child collection in LINQ?

    - by AaronSieb
    I have two tables in my database: Wiki WikiId ... WikiUser WikiUserId (PK) WikiId UserId IsOwner ... These tables have a one (Wiki) to Many (WikiUser) relationship. How would I implement the following business rule in my LINQ entity classes: "A Wiki must have exactly one owner?" I've tried updating the tables as follows: Wiki WikiId (PK) OwnerId (FK to WikiUser) ... WikiUser WikiUserId (PK) WikiId UserId ... This enforces the constraint, but if I remove the owner's WikiUser record from the Wiki's WikiUser collection, I recieve an ugly SqlException. This seems like it would be difficult to catch and handle in the UI. Is there a way to perform this check before the SqlException is generated? A better way to structure my database? A way to catch and translate the SqlException to something more useful? Edit: I would prefer to keep the validation rules within the LINQ entity classes if possible. Edit 2: Some more details about my specific situation. In my application, the user should be able to remove users from the Wiki. They should be able to remove any user, except the user who is currently flagged as the "owner" of the Wiki (a Wiki must have exactly one owner at all times). In my control logic, I'd like to use something like this: wiki.WikiUsers.Remove(wikiUser); mRepository.Save(); And have any broken rules transferred to the UI layer. What I DON'T want to have to do is this: if(wikiUser.WikiUserId != wiki.OwnerId) { wiki.WikiUsers.Remove(wikiUser); mRepository.Save(); } else { //Handle errors. } I also don't particularly want to move the code to my repository (because there is nothing to indicate not to use the native Remove functions), so I also DON'T want code like this: mRepository.RemoveWikiUser(wiki, wikiUser) mRepository.Save(); This WOULD be acceptable: try { wiki.WikiUsers.Remove(wikiUser); mRepository.Save(); } catch(ValidationException ve) { //Display ve.Message } But this catches too many errors: try { wiki.WikiUsers.Remove(wikiUser); mRepository.Save(); } catch(SqlException se) { //Display se.Message } I would also PREFER NOT to explicitly call a business rule check (although it may become necessary): wiki.WIkiUsers.Remove(wikiUser); if(wiki.CheckRules()) { mRepository.Save(); } else { //Display broken rules }

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  • SAML with .NET 2.0

    - by mjmcinto
    I've been given the task of working with SAML to implement an SSO solution between my company and a third party provider. My only issue is that I can't seem to find how to implement SAML in C# 2.0. I've been able to find a few examples for .Net 3.0 and 3.5, but none for 2.9 (and the classes they use don't appear to be available in 2.0). Does anyone know of any oline examples using SAML and C# 2.0?

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  • Images do not load at first time in my swf but the second time they are shown when the bowser refres

    - by Muhammad Irfan
    i have written classes in as3... my swf works fine locally but at live link, images do not load or shown first time but when you refresh the browser again they are loaded and shown.. i know they comes in cache but what is happening first time.. you can clear your browser cache and check the problem happens each time when it is not in cache... all images are less than 1 mb.. here is the link http://web.s4spk.com/irfan/loadtest1/project.html

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  • Substitute for Iterator that is Serialization

    - by Mahmoud
    I'm working on a GWT project, and I have a bunch of Java classes that use Java Object Iterators on the server side. As I was reading through the internet...Iterators seem to not be serializable preventing me from sending them over to the client side from the server side. My question is is there an efficient way to serialize the iterator or use a substitute that might be serializable ? Many thanks!

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  • Flash (ActionScript 3): how to build a remoting application

    - by Lothar
    Hi, I'm looking for examples (code) of applications that uses Flash (NOT Flex) and Remoting classes for ActionScript 3 (NetConnection). Once there was ARP, a repository of code of this kind, but it seems there is not anymore. I'm trying to figure out how to build an applications that makes heavy use of calls to WebORB and responders. I need an architect point of view, NOT a sample of communication between parts, but a real world scenario.

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  • implement bank using python programming

    - by prajakta
    Write software for a bank. The program should be menu driven with the facility for bank employees to perform various operations. It should be written using all concepts of Object Oriented programming. You should be able to save your data in a file and read it back (because the bank people will shut down their computers when they go home :p ) Guidelines: The program may select to implement classes like Bank, Account, Savings Account, Fixed Deposit account, Customer, Depositor, Borrower, Transaction, etc.

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  • ModelForm problem

    - by 47
    I have declared my model classes as found in this link....I now want to customize how my add/edit ModelForm for a Vehicle object is rendered in that I want the year, make, model, and manufacturer fields to be rendered separately as opposed to referring to the one common_vehicle field from the Vehicle class. How can this be done?

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  • Planning a database app

    - by ChrisC
    I am in the planning stages of a database app for personal use. I have a good bit of the database structure planned, but as I think about how I'm going to write the program, it made me wonder if I'm doing this in the right order. Which should I be planning first, the db structure or the classes?

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  • Points in CSS specificity

    - by Sam
    Researching specificity I stumbled upon this blog - http://www.htmldog.com/guides/cssadvanced/specificity/ It states that specificity is a point-scoring system for CSS. It tells us that elements are worth 1 point, classes are worth 10 points and IDs are worth 100 points. It also goes on top say that these points are totaled and the overall amount is that selector's specificity. For example: body = 1 point body .wrapper = 11 points body .wrapper #container = 111 points So, using these points surely the following CSS and HTML will result in the text being blue: CSS: #a { color: red; } .a .b .c .d .e .f .g .h .i .j .k .l .m .n .o { color: blue; } HTML: <div class="a"> <div class="b"> <div class="c"> <div class="d"> <div class="e"> <div class="f"> <div class="g"> <div class="h"> <div class="i"> <div class="j"> <div class="k"> <div class="l"> <div class="m"> <div class="n"> <div class="o" id="a"> This should be blue. </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> RESULT: http://jsfiddle.net/hkqCF/ Why is the text red when 15 classes would equal 150 points compared to 1 ID which equals 100 points?

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  • disposing a class loader

    - by java_geek
    I am using a custom class loader which extends URLClassLoader. I load some classes into my custom class loader and perform some task. Once the task is completed i want to dispose of the class loader. I tried doing that by setting the reference to null. But this does not garbage collect the class loader. Is there a way that can help what i want to achieve?

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  • Java web services client

    - by Bill
    I want to build a web services client that takes wsdl link as the input and generates java classes. I know we can do this directly using Netbeans IDE where we provide the wsdl location during project setup. But I want the wsdl location to be provided when the client starts running. How do I do this?

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  • graph algorithms

    - by davit-datuashvili
    now one ask please help me to write a few graph algorithms for example http://en.wikipedia.org/wiki/Dijkstra%27s_algorithm there is given such graph my problem is that i want implement graph algorithms on arrays can anybody help me to imlement ddijkstra algorithm on array i want to see one example because it is difficulty for me to understand this pseudocodes which is in internet i mean classes edges and so on please help me

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  • Which Exception class to choose

    - by PaN1C_Showt1Me
    Suppose you want to throw Exception like this: 'Project with the provided ID cannot be assigned.' and you don't want to write your custom Exception class. What predefined Exception class would you use for this? (I'm talking about all classes inheriting from Exception)

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  • Why should GoTos be bad?

    - by lisn
    I'm using gotos and a lot of them. C++, PHP or COBOL - I use them on nearly all occasions where everybody else would use functions or even classes. Yet my code is Clear Maintainable Bug-free Fast So why does everybody I meet tell me about how bad gotos are? Are there any facts that show that they are "bad"?

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  • ASP.NET MVC Project and the App_Code folder

    - by brunot
    How come App_Code is not a choices in the Add ASP.NET Folder submenu in the VS solution explorer? I realize you can create one yourself manually by just renaming a New Folder, but what is the rational here? Is this not where you are supposed to put "utility" or "service layer" type classes? On a MVC project side note. I do like the fact that there is a reference to System.Configuration out-of-the-box unlike the default ASP.NET Web Form Projects.

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  • Did Java invent interfaces?

    - by Jordão
    I know about C++ pure virtual classes, but Java went one step further and created a first-class (no pun intended) concept for multiple-interface (not implementation) inheritance, the interface. It's now a staple of major statically-typed languages. Did Java invent the interface concept? Or did it appear in older languages also as a first-class concept?

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  • What can map database tables like LINQ to SQL did?

    - by trnTash
    A good thing in LINQ to SQL was a fast and reliable way to map database tables and convert them into classes accessible from c# project. However it is no longer recommended to create projects using LINQ to SQL. What is its substitute? What kind of tool should I use in VS 2010 today if I want to have the same functionality as I had with LINQ to SQL?

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  • Electroserver to Smartfox migration help

    - by Garrt
    I've got several demonstration programs that use Electroserver, but I'd also want to test the same code using Smartfox. What is the most straightforward method to do this kind of migration? I know the types of classes that need to be changed, but since the terminology is slightly different in both libraries, it's difficult to make a smooth transition. Fortunately, the programs are simple and I can probably do a bit of trial and error in replacing each missing class, but is there a better solution? Thanks.

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