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Default profile in Spring 3.1

In my application I have beans annotated with @Profile("prod") and @Profile("demo") . The first one, as you can guess :), is used on beans that connect to production DB and second one annotates beans that use some fake DB ( HashMap or whatever)- to make development faster. ...
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What is the most efficient/elegant way to parse a flat table into a tree?

..., we can say that all popular SQL databases support recursive queries in standard syntax. WITH RECURSIVE MyTree AS ( SELECT * FROM MyTable WHERE ParentId IS NULL UNION ALL SELECT m.* FROM MyTABLE AS m JOIN MyTree AS t ON m.ParentId = t.Id ) SELECT * FROM MyTree; I tested recursive que...
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Why is it impossible to override a getter-only property and add a setter? [closed]

...nly property. It doesn't make sense for derivations to break this contract and make it read-write. I'm with Microsoft on this one. Let's say I'm a new programmer who has been told to code against the Baseclass derivation. i write something that assumes that Bar cannot be written to (since the Basec...
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How to use the CancellationToken property?

... } Console.Write("345"); } } That's it. You always need to handle cancellation by yourself - exit from method when it is appropriate time to exit (so that your work and data is in consistent state) UPDATE: I prefer not writing while (!cancelToken.IsCancellationRequested) because ofte...
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How to move columns in a MySQL table?

...the structure view of a table. Check to select the column you want to move and click the change action at the bottom of the column list. You can then change all of the column properties and you'll find the 'move column' function at the far right of the screen. Of course this is all just building th...
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Site stopped working in asp.net System.Web.WebPages.Razor.Configuration.HostSection cannot be cast t

...g contains the proper version for the assembly "System.Web.WebPages.Razor" and "System.Web.Mvc". Check for their actual existence as well as my "System.Web.WebPages.Razor" assembly tag was missing causing the error. I had my assembly versions set to 3.0 and 5.0 respectively in the time of this writ...
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Why are we not to throw these exceptions?

... Exception is the base type for all exceptions, and as such terribly unspecific. You shouldn’t ever throw this exception because it simply does not contain any useful information. Calling code catching for exceptions couldn’t disambiguate the intentionally thrown excep...
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JavaScript, Node.js: is Array.forEach asynchronous?

...k at the specification of the algorithm. However a maybe easier to understand implementation is given on MDN: if (!Array.prototype.forEach) { Array.prototype.forEach = function(fun /*, thisp */) { "use strict"; if (this === void 0 || this === null) throw new TypeError(); va...
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Import SQL file into mysql

... In Chrome they are called bookmarks, and you can just click the star in address bar ;) – Andrew Dec 29 '13 at 0:17 2 ...
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How do you clone a Git repository into a specific folder?

Executing the command git clone git@github.com:whatever creates a directory in my current folder named whatever , and drops the contents of the Git repository into that folder: ...