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javax vs java package
...l thing - if a package is introduced as an addition to an existing JRE, it comes in as javax. If it's first introduced as part of a JRE (like NIO was, I believe) then it comes in as java. Not sure why the new date and time API will end up as javax following this logic though... unless it will also b...
XPath - Selecting elements that equal a value
...e node-tests in XPath, meaning "is this a text node?". Other nodetests are comment(), processing-instruction(), or just node().
– Dimitre Novatchev
Jul 8 '10 at 20:55
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API pagination best practices
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I'm not completely sure how your data is handled, so this may or may not work, but have you considered paginating with a timestamp field?
When you query /foos you get 100 results. Your API should then return something like this (as...
What is the purpose of “!” and “?” at the end of method names?
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It's "just sugarcoating" for readability, but they do have common meanings:
Methods ending in ! perform some permanent or potentially dangerous change; for example:
Enumerable#sort returns a sorted version of the object while Enumerable#sort! sorts it in place.
In Rails, ActiveRec...
What's a quick way to test to see a file exists?
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setting multiple column using one update
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Just add parameters, split by comma:
UPDATE tablename SET column1 = "value1", column2 = "value2" ....
See also: mySQL manual on UPDATE
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XPath: How to check if an attribute exists?
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LINQ query to return a Dictionary
... mc => mc.ValueProp.ToString(),
StringComparer.OrdinalIgnoreCase);
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On localhost, how do I pick a free port number?
I'm trying to play with inter-process communication and since I could not figure out how to use named pipes under Windows I thought I'll use network sockets. Everything happens locally. The server is able to launch slaves in a separate process and listens on some port. The slaves do their work and s...
GIT repository layout for server with multiple projects
..., but build a small repo as a main project, which will reference the right commits of other repos, each one representing a project or common component of its own.
The OP Paul Alexander comments:
This sounds similar to the "externals" support provided by subversion.
We tried this and found i...