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How do synchronized static methods work in Java and can I use it for loading Hibernate entities?
...t approach to ensure thread-safety.
Not really. You should let your RDBMS do that work instead. They are good at this kind of stuff.
The only thing you will get by synchronizing the access to the database is to make your application terribly slow. Further more, in the code you posted you're buildi...
How do I update a Linq to SQL dbml file?
How do I update a Linq to SQL .dbml file?
8 Answers
8
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How do I make the first letter of a string uppercase in JavaScript?
How do I make the first letter of a string uppercase, but not change the case of any of the other letters?
94 Answers
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Why does Iterable not provide stream() and parallelStream() methods?
I am wondering why the Iterable interface does not provide the stream() and parallelStream() methods. Consider the following class:
...
How do you organize your version control repository?
..., as long as you preserve the structure from the project root directory on down
-- build each project anywhere on any machine, with minimum risk and minimum preparation
-- build each project completely stand-alone, as long as you have access to its binary dependencies (local "library" and "output"...
Do I set properties to nil in dealloc when using ARC?
...
Short answer: no, you do not have to nil out properties in dealloc under ARC.
Long answer: You should never nil out properties in dealloc, even in manual memory management.
In MRR, you should release your ivars. Nilling out properties means call...
Why do we need fibers
...seful
# enum_for is an Object method
# so even for iterators which don't return an Enumerator when called
# with no block, you can easily get one by calling 'enum_for'
return enum_for(:an_iterator) if not block_given?
yield 1
yield 2
yield 3
end
end
Let's try it:
e...
When saving, how can you check if a field has changed?
... so that you keep a copy of the original value. This makes it so that you don't have to do another DB lookup (which is always a good thing).
class Person(models.Model):
name = models.CharField()
__original_name = None
def __init__(self, *args, **kwargs):
super(Person, self)._...
How do I fit an image (img) inside a div and keep the aspect ratio?
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You will need some JavaScript to prevent cropping if you don't know the dimension of the image at the time you're writing the css.
HTML & JavaScript
<div id="container">
<img src="something.jpg" alt="" />
</div>
<script type="text/javascript">
(fu...
How do I get the AM/PM value from a DateTime?
...rom date. But if I want to change AM to PM in any date. Then what should I do ?
– Ajay Sharma
Apr 14 '16 at 6:11
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