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  • Instantiating and referencing models in MVC

    - by fig-gnuton
    In MVC, should each model be a globally accessible singleton accessible to any view/controller? Or should the models be singletons that are dependency injected into any component that requires them? Or should a new model instance be created for each component that needs one, in which case events would be used to propagate changes across model instances of the same class?

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  • How can I setup a flexible local web development environment I can easily sync with a production, Amazon AWS based environment?

    - by user607057
    I'm running on an OS X environment and would like to create a flexible web development environment locally... including the option to run on an Nginx server for my PHP-based application. At the end of the day (or, development cycle), I'd like to be able to hit a switch and have it all sync over to Amazon AWS hosting (EC2, S3) - instances, databases, files, configurations, and all. Are there any simple ways to do this?

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  • Which user account to assign as owner when attaching an SQL Server database?

    - by FreshCode
    This is a simple database security & performance question, but I've always used either a special user (eg. mydbuser), or Windows' built-in NETWORK SECURITY account as the owner when attaching databases to my SQL Server instances. When deploying my database to a production server, is there a specific user I should stick to or avoid? I would think that using an account with a set password could open the database up to a potential security issue.

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  • How to connect to local database via website?

    - by Carlo
    Hi I have a website used by clients for reporting purposes and would like to give clients the option of my website reading their local database directly (instead of them providing data in a file format). In most instances their database would be SQL Express setup on their localhost. How can I connect to a clients local SQL server via my website, using asp.net / javascript etc? If the client provides their connection string properties, localhost would just refer to my server's localhost... Thanks

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  • Java reflection framework and security

    - by Jijoy
    Hi , Assume I have a singleton class in an external lib to my application. But still I can create instances of that particular class using reflection. Like this Class clas = Class.forName(Private.class.getName()); for(Constructor c : clas.getDeclaredConstructors()){ c.setAccessible(true); Private p = (Private) c.newInstance(); System.out.println(p); } How can I restrict this ? . Thanks J

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  • collecting a "+" via CGI

    - by Dr.Dredel
    I'm collecting text through a web form and noticing that when it is collected by my PERL CGI all instances of "+" are transformed into " ". I run the text through a javascript escape before submission, but escape seems to leave + unaltered. There must be something really obvious that I'm missing... how do I send the string "2 + 2 = 4" through and not have it arrive as "2 2 = 4" ??

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  • how reference copy is handled in Objective-C?

    - by Cathy
    Object graph [Instance A] tree / \ / \ / \ ↓ ↓ [Instance B] [Instance C] apple bug Question Instance A has to reference copies to Instance B and Instance C. If I retain or release Instance A, which has references to the other two instances, what happens to the various reference counts?

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  • How to deploy the same webapp with different logging? (Tomcat, Solr)

    - by Karussell
    We are using multiple solr instances on tomcat but want that they log into different log files. How could we do this? We are using the follwing xml file under tomcat/conf/Catalina/localhost to make it working: <Context docBase="/pathtosolr/dist/apache-solr-1.4.0.war" debug="0" crossContext="true" > <Environment name="solr/home" type="java.lang.String" value="/pathtosolr/solr" override="true" /> </Context>

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  • initialize a const array in a class initializer in C++

    - by Nathan Fellman
    I have the following class in C++: class a { const int b[2]; // other stuff follows // and here's the constructor a(void); } The question is, how do I initialize b in the initialization list, given that I can't initialize it inside the body of the function of the constructor, because b is const? This doesn't work: a::a(void) : b([2,3]) { // other initialization stuff } Edit: The case in point is when I can have different values for b for different instances, but the values are known to be constant for the lifetime of the instance.

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  • How to load MS Word document in C# (.NET)?

    - by Skuta
    Hi, How do I load MS Word document (.doc and .docx) to memory (variable) without doing this?: wordApp.Documents.Open I don't want to open MS Word, I just want that text inside. You gave me answer for DOCX, but what about DOC? I want free and high performance solution - not to open 12.000 instances of Word to process all of them. :( Aspose is commercial product, and 900$ is a way too much for what I do.

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  • Amazon Elastic MapReduce: the number of launched map task

    - by S.N
    Hi, In the "syslog" for a MapReduce job flow step, I see the following: Job Counters Launched reduce tasks=4 Launched map tasks=39 Does the number of launched map tasks include failed tasks? I am using NLineInputFormat class as input format to manage the number of map tasks. However, I get slightly different numbers for exact same input occasionally, or depending on the number of instances (10, 15, and 20). Can anyone tell me why I am seeing different number of tasks launched?

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  • Google App Engine - The most awaited feature

    - by systempuntoout
    This list is taken from the official Google App Engine roadmap: SSL for third-party domains Background servers capable of running for longer than 30s Ability to reserve instances to reduce application loading overhead Ability to select different availability vs. latency options for Datastore Support for mapping operations across datasets Datastore dump and restore facility Raise request/response size limits for some APIs Improved monitoring and alerting of application serving Support for Browser Push (Comet) communication Built-in support for OAuth & OpenID What is your most awaited feature and why?

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  • Why should Java ThreadLocal variables be static

    - by kellyfj
    I was reading that JavaDoc for Threadlocal here http://java.sun.com/j2se/1.5.0/docs/api/java/lang/ThreadLocal.html and it says "ThreadLocal instances are typically private static fields in classes that wish to associate state with a thread (e.g., a user ID or Transaction ID). " But my question is why did they choose to make it static (typically) - it makes it a bit confusing to have "per thread" state but its static?

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  • Is there any mercurial hosting actually *on* Amazon EC2?

    - by Neil Trodden
    I need to be able to update my ec2 instance from a label in mercurial when it resets so my application is always set at the right revision. It'd be great to be able to push my changes to a mercurial host and have my instances automatically update across the ec2 network when they are reset! I really don't want to host mercurial on the same instance (or even a dedicated instance)

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  • Not able to run emulator.exe

    - by ranjanarr
    Hello, I am trying to run the sms app and I need two instances of emulator on same machine. Eclipse is up and running however, the android-sdk-windowstoolsemulator.exe does not run at all. can anyone help me on this , it is urgent. asap. Thanks in advance.

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  • How to free static member variable in C++?

    - by user299831
    Can anybody explain how to free memory of a static member Variable? In my understanding it can only be freed if all the instances of the class are destroyed. I am a little bit helpless at this point... Some Code to explain it: class ball { private: static SDL_Surface *ball_image; }; //FIXME: how to free static Variable? SDL_Surface* ball::ball_image = SDL_LoadBMP("ball.bmp");

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  • which linux flavour should I use to for my hosting server?

    - by rabbit
    Hi, We plan to host our website on a linux server. The site is created using java based technologies and will run on multiple instances of tomcat with apache in the front. I want to go in for a 64 bit linux OS so that I can install 64bit jvm. So my options are : Ubuntu Fedora CentOS which one (and which version) would be the most stable?

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