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Performing user authentication in Java EE / JSF using j_security_check
...ser authentication for a web application making use of JSF 2.0 (and if any components do exist) and Java EE 6 core mechanisms (login/check permissions/logouts) with user information hold in a JPA entity. The Oracle Java EE tutorial is a bit sparse on this (only handles servlets).
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Is it possible to select the last n items with nth-child?
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Is there any way to not return something using CoffeeScript?
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Or:
fun = ->
doSomething()
undefined
This is what the doc recommends, when using comprehensions:
Be careful that you're not accidentally returning the results of the comprehension in these cases, by adding a meaningful return value — like true — or null, to the bottom of your ...
What does flushing the buffer mean?
...byte at a time, then each write of a byte is going to be very costly. So a common way to improve performance is to store the data that you are writing in a temporary buffer. Only when there is a lot of data is the buffer written to the file. By postponing the writes, and writing a large block in one...
How to use SCNetworkReachability in Swift
...Note also that registering a notifier callback is possible as of
Swift 2, compare Working with C APIs from Swift and Swift 2 - UnsafeMutablePointer<Void> to object.
Update for Swift 3/4:
Unsafe pointers cannot be simply be converted to a pointer of a
different type anymore (see - SE-0107...
How to make a div grow in height while having floats inside
...<div class="float">Mercedem aut nummos unde unde extricat, amaras. A communi observantia non est recedendum. Quisque ut dolor gravida, placerat libero vel, euismod. Paullum deliquit, ponderibus modulisque suis ratio utitur.</div>
</div>
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Update git commit author date when amending
I found myself amending my commits quite often. I don't stash so much because I tend to forget I did so, especially when I want to save what I did before I leave or before a weekend, so I do a "draft" commit. Only thing is, when I amend the commit, it is still set to the original author date. Is t...
Command line: piping find results to rm
I'm trying to work out a command which deletes sql files older than 15 days.
4 Answers
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TypeError: 'dict_keys' object does not support indexing
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