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What is the “reactor” in Maven?
I've been reading about Maven reactor and am confused by its terminology usage. I've read that a multi-module is a reactor, that you can manipulate the maven reactor and that the reactor is a plugin. What exactly is the reactor?
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Running bash script from within python
...an't change it e.g., by running os.chmod('sleep.sh', 0o755) then you could read the script as a text file and pass the string to subprocess module instead:
with open('sleep.sh', 'rb') as file:
script = file.read()
rc = call(script, shell=True)
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What is the use of static constructors?
... with a type (or any other per-type operations) - useful in particular for reading required configuration data into readonly fields, etc.
It is run automatically by the runtime the first time it is needed (the exact rules there are complicated (see "beforefieldinit"), and changed subtly between CLR...
How do C++ class members get initialized if I don't do it explicitly?
...uble=10.765;
};
I use this form pretty much exclusively, although I have read some people consider it 'bad form', perhaps because it was only recently introduced - I think in C++11. To me it is more logical.
Another useful facet to the new rules is how to initialize data-members that are themsel...
How to call a stored procedure from Java and JPA
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JPA 2.1 now support Stored Procedure, read the Java doc here.
Example:
StoredProcedureQuery storedProcedure = em.createStoredProcedureQuery("sales_tax");
// set parameters
storedProcedure.registerStoredProcedureParameter("subtotal", Double.class, ParameterMode....
Browser detection in JavaScript? [duplicate]
...eir bugs (like FF 3's issue with not sending the Content-Length header for read-only AJAX POST messages), feature support just doesn't cut it.
– Cobra
Jun 12 '13 at 16:04
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SQL - Query to get server's IP address
...wered Qs for a while, so policy&rules here might have changed (will go read them up now...)
– Martin S. Stoller
Feb 25 '15 at 19:53
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How do I kill background processes / jobs when my shell script exits?
...31317 but you could redirect the output of jobs -p to a temporary file and read it from there for kill.
– jarno
Aug 22 at 5:39
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How can I measure the actual memory usage of an application or process?
...ed for it
can be misleading if pages are shared, for example by several threads or by using dynamically linked libraries
If you really want to know what amount of memory your application actually uses, you need to run it within a profiler. For example, Valgrind can give you insights about the amo...
Iterating through a range of dates in Python
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@Ber: I don't like it at all; it's DOUBLY bad. You ALREADY had an iteration! By wrapping the complained-about constructs in a generator, you have added even more execution overhead plus diverted the user's attention to somewhere else to read your 3-liner's code and/or docs. -2
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