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Which annotation should I use: @IdClass or @EmbeddedId
... a clear notion of the fields that make the composite key because they are all aggregated in a class that is accessed trough a field access operator.
Another difference with @IdClass and @EmbeddedId is when it comes to write HQL :
With @IdClass you write:
select e.name from Employee e
and with @...
What is the point of “final class” in Java?
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First of all, I recommend this article: Java: When to create a final class
If they do, when do they use it so I can understand it better and know when to use it.
A final class is simply a class that can't be extended.
(It doe...
How to resolve the C:\fakepath?
...nt the server to know your local machine's filesystem. It would be nice if all browsers did this.
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Why do we use Base64?
...omputing.
Computers communicate in binary - 0s and 1s - but people typically want to communicate with more rich forms data such as text or images. In order to transfer this data between computers it first has to be encoded into 0s and 1s, sent, then decoded again. To take text as an example - the...
Directory does not exist. Parameter name: directoryVirtualPath
...ndles/jquery").Include(
"~/Scripts/jquery-{version}.js"));
I removed all of those and the error went away.
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Python - write() versus writelines() and concatenated strings
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More specifically, writelines expects an iterable. You can use a list, a tuple, or a generator.
– Mark Ransom
Sep 11 '12 at 20:52
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Child with max-height: 100% overflows parent
... child's max-height to be calculated from, so max-height computes to none, allowing the child to be as tall as possible. The only other constraint acting on the child now is the max-width of its parent, and since the image itself is taller than it is wide, it overflows the container's height downwar...
What's the difference between an exclusive lock and a shared lock?
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When the students are reading (shared locks) what is on the board:
They all can read what is on it, together => Multiple shared locks can co-exist.
The teacher waits for them to finish reading before she clears the board to write more => If one or more shared locks already exist, exclusive ...
Image Processing: Algorithm Improvement for 'Coca-Cola Can' Recognition
...ne of the feature descriptors can differentiate bottles from a cans.. They all just view invariant local pattern descriptors. I agree that SIFT,SURF,ORB,FREAK etc. can help you in feature matching but.. What about your other parts of the question like occlusions, Bottle vs Can etc. I hope this is no...
How to get the pure text without HTML element using JavaScript?
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Trying to parse HTML with regular expressions is really dangerous --- it's practically impossible (I suspect it may be theoretically impossible) to get right. There's too many edge cases and then your code blows up when faced with strange input, which can frequently be exploi...