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@Transactional(propagation=Propagation.REQUIRED)
...ction on the database before executing. If the caller of this method has already started a Transaction then this method will use that same physical Transaction on the current database connection.
This @Transactional annotation provides a means of telling your code when it executes that it must have...
How to tell if rails is in production?
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I found it much easier to just restart the rails server and read the second line on the command line:
Running rails s -e production outputs:
=> Booting Puma
=> Rails 4.2.4 application starting in `production` on http://localhost:3000
Had Webrick in the example but some peopl...
How to split a long regular expression into multiple lines in JavaScript?
... line length 80 characters according to JSLint rules. It's just better for reading, I think.
Here's pattern sample:
11 Answ...
Programmatically creating Markdown tables in R with KnitR
...e is in markdwon, you could knit into html or word too).
From here - and reading other people´s code - you can figure out how to manipulate the text to generate the table you want and create more personalized functions.
s...
How do I create a directory from within Emacs?
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@Zeynel: You're not reading. There is no C-x C-f here. You use C-x d to get into Dired mode, visiting the directory where you want to create a subdirectory. Then you hit +. That's all.
– Drew
Jan 26 '14 at ...
What's wrong with overridable method calls in constructors?
...on in abstract class’s constructor
See also
FindBugs - Uninitialized read of field method called from constructor of superclass
On object construction with many parameters
Constructors with many parameters can lead to poor readability, and better alternatives exist.
Here's a quote from ...
Why is Double.MIN_VALUE in not negative
...ng used to the meaning Integer.MIN_VALUE, I too was a bit surprised when I read that Double.MIN_VALUE was the smallest absolute value that could be represented. Perhaps they thought it was superfluous to have a constant representing the least possible value as it is simply a - away from MAX_VALUE :-...
How to use android emulator for testing bluetooth application?
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Thank you @Lokesh for your answer. I have read that documentation.
– Usman Khan
Oct 28 '14 at 12:41
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How do I use WebRequest to access an SSL encrypted site using https?
I'm writing a program that reads content from a user provided URL. My problem is in the code that goes something like this:
...
How much is too much with C++11 auto keyword?
... future. I would write auto in this case.
So if the auto keyword improves readability in a particular case then use it. You can write auto when it is obvious to the reader what type auto represents.
Here are some examples:
auto foo = std::make_shared<Foo>(); // obvious
auto foo = bla(); ...