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ASP.NET MVC: Is Controller created for every request?

... A Controller is created for every request by the ControllerFactory (which by default is the DefaultControllerFactory). http://msdn.microsoft.com/en-us/library/system.web.mvc.defaultcontrollerfactory.aspx Note that the Html.Action Html Helper will create another con...
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Which annotation should I use: @IdClass or @EmbeddedId

...argue that this differs from a more natural language like the one promoted by IdClass. But most of the times understanding right from the query that a given field is part of the composite key is of invaluable help. share ...
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Using i and j as variables in Matlab

...es: For speed and improved robustness, you can replace complex i and j by 1i. So rather than avoiding two very commonly used variable names because of a potential conflict, I'm explicit about imaginary numbers. It also makes my code more clear. Anytime I see 1i, I know that it represents sqrt(...
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WPF Bind to itself

...ng has a source and a path. You can do a "binding to itself", for example, by using <myUIControl myProperty="{Binding RelativeSource={RelativeSource Self}, Path=x}" /> This, however, sets the source to the control itself, so it will try to access property x of the UI control (rather than pr...
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Suppress command line output

...works because stdout is file descriptor 1, and stderr is file descriptor 2 by convention. (0 is stdin, incidentally.) The 2>&1 copies output file descriptor 2 from the new value of 1, which was just redirected to the null device. This syntax is (loosely) borrowed from many Unix shells, but y...
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Jackson JSON custom serialization for certain fields

...rties can be serialize which are needful for client only Define our Views by simply creating following class: public class Views { static class Android{}; static class IOS{}; static class Web{}; } Annotated model class with views: public class Demo { public Demo() { } ...
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How to print out a variable in makefile

... As per the GNU Make manual and also pointed by 'bobbogo' in the below answer, you can use info / warning / error to display text. $(error text…) $(warning text…) $(info text…) To print variables, $(error VAR is $(VAR)) $(warning VAR is $(VAR)) $(info ...
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Why do I get “unresolved external symbol” errors when using templates? [duplicate]

...te's source with the "export" keyword. Unfortunately this isn't supported by a lot of compilers. (Update: this has been removed from the standard as of C++11.) Both 1 and 2 basically address the problem by giving the compiler access to the full code for the templated function when it is attemptin...
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When to use the brace-enclosed initializer?

... Curly braces have the disadvantage that I can call the list constructor by mistake. Round brackets don't. Isn't that a reason to use the round brackets by default? – helami Apr 2 '12 at 13:36 ...
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file_get_contents(“php://input”) or $HTTP_RAW_POST_DATA, which one is better to get the body of JSON

...es. Moreover, for those cases where $HTTP_RAW_POST_DATA is not populated by default, it is a potentially less memory intensive alternative to activating always_populate_raw_post_data. Source: http://php.net/manual/en/wrappers.php.php. ...