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Does Spring @Transactional attribute work on a private method?
...vate or
package-visible methods with the
@Transactional annotation, no error
is raised, but the annotated method
does not exhibit the configured
transactional settings. Consider the
use of AspectJ (see below) if you need
to annotate non-public methods.
...
Get final URL after curl is redirected
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@DanielStenberg you need -I otherwise it will actually download the file.
– Steven Penny
Jun 15 '14 at 2:05
2
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Why don't Java's +=, -=, *=, /= compound assignment operators require casting?
...sing incompatible types, as it would always cause the compiler to throw an error out.
– ThePyroEagle
Dec 22 '15 at 21:04
6
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Mockito + PowerMock LinkageError while mocking system class
....*", "javax.net.ssl.*"})
Adding that to the top of my class resolved the error.
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Vim users, where do you rest your right hand? [closed]
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I think that jkl; is actually the more appropriate usage for vi. For one, h and l really don't matter that much. w, e, and b are significantly more useful for horizontal navigation. As a bonus, ; is easy to get at if the language requires it. Having ...
What is the difference between Θ(n) and O(n)?
...e of the algorithm as n gets larger is at most proportional to g(n).
Normally, even when people talk about O(g(n)) they actually mean Θ(g(n)) but technically, there is a difference.
More technically:
O(n) represents upper bound. Θ(n) means tight bound.
Ω(n) represents lower bound.
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Will using 'var' affect performance?
...e it can't figure out what type you intended to use, you'll get a compiler error.
The only trick is that var will infer an exact type where you may have chosen an Interface or parent type if you were to set the type manually.
Update 8 Years Later
I need to update this as my understanding has change...
Should __init__() call the parent class's __init__()?
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In Python, calling the super-class' __init__ is optional. If you call it, it is then also optional whether to use the super identifier, or whether to explicitly name the super class:
object.__init__(self)
In case of object, calling th...
Splitting a list into N parts of approximately equal length
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This code is broken due to rounding errors. Do not use it!!!
assert len(chunkIt([1,2,3], 10)) == 10 # fails
Here's one that could work:
def chunkIt(seq, num):
avg = len(seq) / float(num)
out = []
last = 0.0
while last < len(seq):
...
Why is reading lines from stdin much slower in C++ than Python?
...tl;dr: Because of different default settings in C++ requiring more system calls.
By default, cin is synchronized with stdio, which causes it to avoid any input buffering. If you add this to the top of your main, you should see much better performance:
std::ios_base::sync_with_stdio(false);
Normall...