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Websocket API to replace REST API?
...r more than just realtime features is very appealing.
I am seriously considering moving my app from a RESTful architecture to more of an RPC style via websockets. This is not a "toy app", and I'm not talking about only realtime features, so I do have reservations. But I see many benefits in going ...
Should logger be private static or not
...r se be expensive, but it adds a significant overhead. If you'd like to avoid this, you'd like to use the static form instead. But its disadvantage is in turn that you have to declare it in every individual class and take care in every class that the right classname is been used during logger's cons...
What is “lifting” in Scala?
.../ "lifted". Unfortunately, it is not explained what that exactly means. I did some research, and it seems that lifting has something to do with functional values or something like that, but I was not able to find a text that explains what lifting actually is about in a beginner friendly way.
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Xcode doesn't show the line that causes a crash
...g. Do the following [in Xcode 4]:
In the Project Navigator on the left side of Xcode, click on the breakpoint navigator (almost all the way to the right hand side of the top button bar. The icon looks like a fat right arrow).
At the bottom of the navigator, click the "+" button.
Click "Add Excep...
How to pass arguments and redirect stdin from a file to program run in gdb?
...
@codehippo: Well, if you didn't specify --args then there aren't any arguments passed to the executable, so it's hardly ambiguous.
– Lightness Races in Orbit
Jul 23 '14 at 14:02
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Abort makefile if variable not set
...ndef conditional, so that a variable defined to an empty value is also considered "undefined". But this is only true for simple variables and explicitly empty recursive variables:
# ifndef and check_defined consider these UNDEFINED:
explicitly_empty =
simple_empty := $(explicitly_empty)
# ifndef a...
How to show all privileges from a user in oracle?
...ILE package or else you get an error when running Pete Finnigan's script: "identifier 'UTL_FILE' must be declared". You can connect as sys with roll sysdba through SQL Developer and then it will work or grant yourself execute privileges to this package using: grant execute on UTL_FILE to <user>...
Does setting Java objects to null do anything anymore?
...at hangs on to objects after a job has finished, well... that's a bug in said thread pool library that could perhaps be worked around by nulling an object reference, but equally might be worked around by using a less buggy thread pool library. I'm not sure that such a bug changes general design prin...
Why do I need Transaction in Hibernate for read-only operations?
...ght be problematic. For instance Hibernate community says that working outside of transaction might cause unpredictable behavior. This is because Hibernate will open transaction, but it won't close it on its own, thus connection will be returned to the Connection Pool with transaction being not comm...
Memory management in Qt?
...aints imposed by the constructors for other reasons, however; such as in QWidget(QWidget* parent=0), where the parent must be another QWidget, due to e.g. visibility flags and because you’d do some basic layout that way; but for Qt's hierarchy system in general, you are allowed to have any QObject...