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How to manage REST API versioning with spring?
... the current request.
Implement a VersionRangeRequestMappingHandlerMapping based on the annotation and request condition (as described in the post How to implement @RequestMapping custom properties
).
Configure spring to evaluate your VersionRangeRequestMappingHandlerMapping before using the default...
Qt events and signal/slots
... virtual function in a Qt class, which you're expected to reimplement in a base class of yours if you want to handle the event. It's related to the Template Method pattern.
Note how I used the word "handle". Indeed, here's a basic difference between the intent of signals and events:
You "handle" ...
When is the thread pool used?
...s use of native C++ and libuv is likely to use the thread pool (think: database access)
libuv has a default thread pool size of 4, and uses a queue to manage access to the thread pool - the upshot is that if you have 5 long-running DB queries all going at the same time, one of them (and any other as...
How to replace all occurrences of a string?
...al standard method on the String built-in prototype.
Regular Expression Based Implementation
String.prototype.replaceAll = function(search, replacement) {
var target = this;
return target.replace(new RegExp(search, 'g'), replacement);
};
Split and Join (Functional) Implementation
Stri...
Vim 80 column layout concerns
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You can even automatically base the value of 'colorcolumn' on 'textwidth' with something like :set cc=+1
– graywh
Oct 1 '10 at 16:37
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How to prevent ifelse() from turning Date objects into numeric objects
..._new),as.character(dates)))
This wouldn't require any library apart from base R.
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Choosing a stand-alone full-text search server: Sphinx or SOLR? [closed]
... of Lucene, which is a proven technology over 8 years old with a huge user base (this is only a small part). Whenever Lucene gets a new feature or speedup, Solr gets it too. Many of the devs committing to Solr are also Lucene committers.
Sphinx integrates more tightly with RDBMSs, especially MySQL.
...
Git Cherry-pick vs Merge Workflow
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Both rebase (and cherry-pick) and merge have their advantages and disadvantages. I argue for merge here, but it's worth understanding both. (Look here for an alternate, well-argued answer enumerating cases where rebase is preferre...
Exposing database IDs - security risk?
I've heard that exposing database IDs (in URLs, for example) is a security risk, but I'm having trouble understanding why.
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How do popular apps authenticate user requests from their mobile app to their server?
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I imagine they use a "token" based security system, so the password is actually never stored anywhere, just used the first time to authenticate. So the app initially posts the username/password (over ssl) and the server returns a token that the app store...