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What is lazy loading in Hibernate?
...hen iterating over the collection, this causes a query for every child. In order to avoid this, you can trick hibernate into loading all children simultaneously, e.g. by calling parent.getChildren().size().
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How to correctly use the extern keyword in C
..._2();
int v3 = function_3();
}
int function_2(void) return 1234;
In order to compile and link, we must define "function_2" in the same source code file where we call that function. The two other functions could be defined in different source code ".C" or they may be located in any binary file...
Redirecting Output from within Batch file
...amp;8 File 2 message 2
exit /b
I chose to use handles 9 and 8 in reverse order because that way is more likely to avoid potential permanent redirection due to a Microsoft redirection implementation design flaw when performing multiple redirections on the same command. It is highly unlikely, but ev...
Read .mat files in Python
...on’s dict and list objects. Numeric and cell arrays are converted to row-ordered nested lists. Arrays are squeezed to eliminate arrays with only one element. The resulting data structure is composed of simple types that are compatible with the JSON format.
Example: Load a MAT-file into a Python d...
When does System.getProperty(“java.io.tmpdir”) return “c:\temp”
...ction checks for the existence of environment
variables in the following order and uses the first path found:
The path specified by the TMP environment variable.
The path specified by the TEMP environment variable.
The path specified by the USERPROFILE environment variable.
The Windo...
How to throw an exception in C?
... exceptions anyway. In any case, it's important that the OP knows that in order to keep the setjmp/longjmp implementation from shooting your leg off, always keep in mind that you first need to visit the error handler (to set it up), and that error handler needs to return twice.
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Stretch and scale CSS background
...stretch {
width:100%;
height:100%;
}
and you should be done!
In order to scale the image to be "full bleed" and maintain the aspect ratio, you can do this instead:
.stretch { min-width:100%; min-height:100%; width:auto; height:auto; }
It works out quite nicely! If one dimension is crop...
API to automatically upload apk to Google Play? [closed]
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Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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Efficiently test if a port is open on Linux?
...
In order to check for port 80 I needed to use awk '$6 == "LISTEN" && $4 ~ "80$"'. Instead of checking for the dot before the port number with \.80, I used 80$. Otherwise, this also matched IP addresses containing .80 and...
SQL Server Escape an Underscore
...formation_schema.columns
where replace(table_name,'_','!') not like '%!%'
order by table_name
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