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Running PostgreSQL in memory only
...ase, then DROP DATABASE at the end of the run. Get the database connection details from a properties file, build target properties, environment variable, etc.
It's safe to use an existing PostgreSQL instance you already have databases you care about in, so long as the user you supply to your unit t...
How to encrypt String in Java
...l I highly advise using a library and
staying away from the nitty gritty details if you can.
UPDATE 4/5/18: I rewrote some parts to make them simpler to understand and changed the recommended library from Jasypt to Google's new library Tink, I would recommend completely removing Jasypt from a...
Concurrent.futures vs Multiprocessing in Python 3
...ting a speedup. But how much (if any) of a speedup you get depends on the details of your hardware, your OS, and especially on how much inter-process communication your specific tasks require. Under the covers, all inter-process parallelization gimmicks rely on the same OS primitives - the high-le...
Does Entity Framework Code First support stored procedures?
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BTW, I wrote a blog post a few days ago that details how to use these methods to invoke stored procedures, even stored procedures with output parameters: blogs.msdn.com/b/diego/archive/2012/01/10/….
– divega
Jan 17 '12 at 8:46
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Why is git prompting me for a post-pull merge commit message?
...interactive commit message behavior should make those commit messages more detailed and could reduce the overall frequency of unnecessary merges.
You can use the --no-edit flag to avoid this behavior, but, well, don't. Merge commits, like any commits to history, should be well constructed. Your his...
Why can't C# interfaces contain fields?
...eresting to also approach these sorts of questions from the implementation details level.
An interface can be thought of as a collection of slots, which contain methods. When a class implements an interface, the class is required to tell the runtime how to fill in all the required slots. When you s...
How does MongoDB sort records when no sort order is specified?
...ault internal sort order (or natural order) is an undefined implementation detail. Maintaining order is extra overhead for storage engines and MongoDB's API does not mandate predictability outside of an explicit sort() or the special case of fixed-sized capped collections which have associated usage...
Purpose of Activator.CreateInstance with example?
Can someone explain Activator.CreateInstance() purpose in detail?
9 Answers
9
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How can I generate UUID in C#
...Guid(rfc4122bytes);
See this answer for the specific .NET implementation details.
Edit: Thanks to Jeff Walker, Code Ranger, for pointing out that the internals are not relevant to the format of the byte array that goes in and out of the byte-array constructor and ToByteArray().
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setNeedsLayout vs. setNeedsUpdateConstraints and layoutIfNeeded vs updateConstraintsIfNeeded
... coverback is pretty correct. However, I would like to add some additional details.
Below is the diagram of a typical UIView cycle which explains other behaviors:
I've found out that if I use -setNeedsLayout instead of -setNeedsUpdateConstraints everything work as expected, but if I change -lay...