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Cross field validation with Hibernate Validator (JSR 303)
... seems cleaner both from a usability standpoint (his annotation is easy to read and quite functional vs. inelegant javascript->java references), and from a scalability standpoint (I assume there's reasonable overhead to handle the javascript, but maybe Hibernate is caching the compiled code at le...
std::shared_ptr thread safety explained
I'm reading http://gcc.gnu.org/onlinedocs/libstdc++/manual/shared_ptr.html and some thread safety issues are still not clear for me:
...
How do I calculate tables size in Oracle
...
First, gather optimiser stats on the table (if you haven't already):
begin
dbms_stats.gather_table_stats('MYSCHEMA','MYTABLE');
end;
/
WARNING: As Justin says in his answer, gathering optimiser stats affects query optimisation and should not be done without due care and considera...
Assign one struct to another in C
...
I upped it because reading it made me realise the error/omission in my own answer.
– Clifford
Feb 20 '10 at 14:50
1
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Git On Custom SSH Port
... are running linux, take care the config file must have strict permission: read/write for the user, and not accessible by others
2 what about the ssh url way?
It's cool, the only thing we should know is that there two syntaxes for ssh url in git
standard syntax ssh://[user@]host.xz[:port]/path/t...
Should I use .done() and .fail() for new jQuery AJAX code instead of success and error
...ter of the ajax function is valid.
To be consistent with precedent answer, reading the doc :
Deprecation Notice:
The jqXHR.success(), jqXHR.error(), and jqXHR.complete() callbacks will be deprecated in jQuery 1.8. To prepare your code for their eventual removal, use jqXHR.done(), jqXHR.fail(), and ...
Best way of invoking getter by reflection
...ntrospector.getBeanInfo(Foo.class).getPropertyDescriptors()) {
if (pd.getReadMethod() != null && !"class".equals(pd.getName()))
System.out.println(pd.getReadMethod().invoke(foo));
}
Note that you could create BeanInfo or PropertyDescriptor instances yourself, i.e. without using Intro...
Are tuples more efficient than lists in Python?
...uples are preferred, since such tuples are pre-calculated in compile time.
Read-access speeds should be the same (they are both stored as contiguous arrays in the memory).
But, alist.append(item) is much preferred to atuple+= (item,) when you deal with mutable data. Remember, tuples are intended to ...
Do you use source control for your database items? [closed]
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Must read Get your database under version control. Check the series of posts by K. Scott Allen.
When it comes to version control, the database is often a second or even third-class citizen. From what I've seen, teams that woul...
Efficient way to remove ALL whitespace from String?
...t every time, which is more expensive than you might think. private static readonly Regex sWhitespace = new Regex(@"\s+"); public static string ReplaceWhitespace(string input, string replacement) { return sWhitespace.Replace(input, replacement); }
– hypehuman
J...