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Why does JPA have a @Transient annotation?
...at I was looking for) I also want to add that the contrary is not true. If one set a variable as transient, than you cannot persist it.
– jfajunior
Jan 23 at 9:56
add a commen...
Vagrant error : Failed to mount folders in Linux guest
... default: Mounting NFS shared folders...
==> default: VM already provisioned. Run `vagrant provision` or use `--provision` to force it
Just make sure you are running the latest version of VirtualBox
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Generics in C#, using type of a variable as parameter [duplicate]
...and pass in your type parameter as the type argument, pushing the decision one level higher up the stack?
If you could give us more information about what you're doing, that would help. Sometimes you may need to use reflection as above, but if you pick the right point to do it, you can make sure yo...
Finding what branch a Git commit came from
...log show is actually just an alias for git log -g --abbrev-commit --pretty=oneline, so if you want to fiddle with the output format to make different things available to grep for, that's your starting point!
If you're not working in the repository where the commit was made, the best you can do in t...
The definitive guide to form-based website authentication [closed]
...SL/TLS), your login form values will be sent in cleartext, which allows anyone eavesdropping on the line between browser and web server will be able to read logins as they pass through. This type of wiretapping is done routinely by governments, but in general, we won't address 'owned' wires other th...
Coding Practices which enable the compiler/optimizer to make a faster program
...of the arguments. This can help you avoid the dreaded load-hit-store (mentioned by Francis Boivin in this thread).
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Maximum packet size for a TCP connection
...e. Ethernet used to have a maximum MTU of 1500, but you could use a lower one. With the advent of jumbo frames, there is no real specified maximum, and the maximum varies depending on the hardware and driver.
– WhirlWind
Apr 10 '10 at 17:08
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Static class initializer in PHP
... - especially simple examples that are only meant to be illustrative. Everyone's scenarios and situations are different
– Peter Bailey
Jul 22 '10 at 20:47
17
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How to toggle a value in Python
...;> x
1
The technique generalizes to any pair of integers. The xor-by-one step is replaced with a xor-by-precomputed-constant:
>>> A = 205
>>> B = -117
>>> t = A ^ B # precomputed toggle constant
>>> x = A
>>> x ^= t # toggle
>&g...
Base64 length calculation?
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Consider if you have one byte of input. That will produce four characters of output. But only two output characters are needed to encode the input. So two characters will be padding.
– David Schwartz
Nov 14 ...