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Difference between session affinity and sticky session?
...ation fails -- maybe you need to login again. Maybe you have lost data. Usually, the load-balancer picks another server and you keep going, but some state is lost. If this is unacceptable, then you need to get the state to the DB or other servers as quick as possible or have a stateless strategy.
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Immutable class?
...ot be changed after instantiation.
However, there must be care taken that all objects that are referenced by the object must be immutable as well, or it could be possible to change the state of the object.
For example, allowing an reference to an array or ArrayList to be obtained through an gette...
One line if statement not working
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@JayKilleen You're correct. Ruby is all about clever tricks, but it's that clever (:
– Nikita Rybak
Jan 23 '15 at 7:47
3
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In what cases do I use malloc and/or new?
I see in C++ there are multiple ways to allocate and free data and I understand that when you call malloc you should call free and when you use the new operator you should pair with delete and it is a mistake to mix the two (e.g. Calling free() on something that was created with the new ...
How to iterate over values of an Enum having flags?
...s)Enum.Parse(typeof(Items), v)); // Boo
I adapted what Enum does internally to generate the string to instead return the flags. You can look at the code in reflector and should be more or less equivalent. Works well for general use cases where there are values which contain multiple bits.
sta...
Are Stored Procedures more efficient, in general, than inline statements on modern RDBMS's? [duplica
...d procedures are always faster. So, since they're always faster, use them ALL THE TIME .
20 Answers
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composer: How to find the exact version of a package?
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I know it's an old question, but...
composer.phar show
Will show all the currently installed packages and their version information. (This was shown in previous versions of Composer only when using the now-deprecated -i option.)
To see more details, specify the name of the package as wel...
Push origin master error on new repository
... not mention the "git commit -m 'first commit'" command. Once I used that, all was fine!
– Pascal Lindelauf
Sep 1 '09 at 13:55
3
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Why should casting be avoided? [closed]
I generally avoid casting types as much as possible since I am under the impression that it's poor coding practice and may incur a performance penalty.
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Git stash twice
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You can get a list of all stashes with
git stash list
which will show you something like
stash@{0}: WIP on dev: 1f6f8bb Commit message A
stash@{1}: WIP on master: 50cf63b Commit message B
If you made two stashes, then just call git stash pop...