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Differences between action and actionListener
...Faces process/update and JSF f:ajax execute/render attributes.
Invocation order
The actionListeners are always invoked before the action in the same order as they are been declared in the view and attached to the component. The f:ajax listener is always invoked before any action listener. So, the f...
RESTful Alternatives to DELETE Request Body
... to delete but either it failed or they changed their minds. Reversing the order of the calls would also allow DELETEs to occur without a reason — provision of a reason would then be considered merely as annotation. It is for both of these reasons that I would recommend using option 2 from the abo...
What's the difference between UTF-8 and UTF-8 without BOM?
...t use a BOM or where the BOM is used as a UTF-8 signature. See the “Byte Order Mark” subsection in Section 16.8, Specials, for more information.
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Ways to iterate over a list in Java
...dingly. There's no "copying" per-se, but because of the language design in order to make changes to the contents of e I'd have to call one of e's methods because assignment just changes the pointer (pardon my C).
– jacobq
Aug 23 '13 at 20:03
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Explanation of the UML arrows
...ice reference but to me a Menu -> MenuItem has the same relation like a Order -> OrderItem so both of them are Compositions.
– Ignacio Soler Garcia
Jun 28 '13 at 10:53
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How to perform .Max() on a property of all objects in a collection and return the object with maximu
...er which finds the maximum value on every iteration (making it O(n^2))
The ordering solution is O(n log n)
Taking the Max value and then finding the first element with that value is O(n), but iterates over the sequence twice. Where possible, you should use LINQ in a single-pass fashion.
It's a lot s...
How to force R to use a specified factor level as reference in a regression?
...level() command is a shorthand method to your question. What it does is reorder the factor so that whatever is the ref level is first. Therefore, reordering your factor levels will also have the same effect but gives you more control. Perhaps you wanted to have levels 3,4,0,1,2. In that case...
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How to return result of a SELECT inside a function in PostgreSQL?
...pe = 'ALPHABETIC'
LIMIT _max_tokens
) t
GROUP BY t.txt
ORDER BY cnt DESC; -- potential ambiguity
END
$func$ LANGUAGE plpgsql;
Call:
SELECT * FROM word_frequency(123);
Explanation:
It is much more practical to explicitly define the return type than sim...
How to insert element into arrays at specific position?
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[3] => more
[4] => three
)
for the second one there is no order so you just have to do :
$array_2['more'] = '2.5';
print_r($array_2);
And sort the keys by whatever you want.
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What is the difference between an IntentService and a Service? [duplicate]
...d on your system. For example,
If you went to a hotel and you give your order for a soup to a server
The server gets your order and sends to chef
You don't know how the soup is made in the kitchen and what processes are required for making the soup
Once your order is ready, the server brings you ...