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Regex Named Groups in Java
...e active (with several outstanding bugs), and its GitHub fork could be considered instead.
jregex (See Brian Clozel's answer)
(Original answer: Jan 2009, with the next two links now broken)
You can not refer to named group, unless you code your own version of Regex...
That is precisely what Go...
How to query nested objects?
...
Answering my own comment, it's best to avoid using dots completely in your keys. In my solution I completely ditched the domains being keys, and created a slice/array instead.
– Rens Tillmann
Jun 11 at 19:16
...
Select where count of one field is greater than one
...t face value:
SELECT *
FROM db.table
HAVING COUNT(someField) > 1
Ideally, there should be a GROUP BY defined for proper valuation in the HAVING clause, but MySQL does allow hidden columns from the GROUP BY...
Is this in preparation for a unique constraint on someField? Looks like it shou...
ExecutorService, how to wait for all tasks to finish
... In your parlance, you'll need to modify or wrap ComputeDTask to implement Callable<>, which can give you quite a bit more flexibility. Probably in your app there is a meaningful implementation of Callable.call(), but here's a way to wrap it if not using Executors.callable().
ExecutorService...
Object-orientation in C
...struct base *b2_ptr = (struct base *)&d2;
base_dance(b1_ptr); /* calls derived1_dance */
base_dance(b2_ptr); /* calls derived2_dance */
base_jump(b1_ptr, 42); /* calls derived1_jump */
base_jump(b2_ptr, 42); /* calls derived2_jump */
return 0;
}
And that's how you do...
Delete all records in a table of MYSQL in phpMyAdmin
...will delete all the content of the table, not reseting the autoincremental id, this process is very slow. If you want to delete specific records append a where clause at the end.
truncate myTable
This will reset the table i.e. all the auto incremental fields will be reset. Its a DDL and its very fa...
When is it right for a constructor to throw an exception?
...onstructor's job is to bring the object into a usable state. There are basically two schools of thought on this.
One group favors two-stage construction. The constructor merely brings the object into a sleeper state in which it refuses to do any work. There's an additional function that does the ac...
Why is @autoreleasepool still needed with ARC?
...utoreleases, it just adds in the required ones for you. So there are still calls to retain, there are still calls to release, there are still calls to autorelease and there are still auto release pools.
One of the other changes they made with the new Clang 3.0 compiler and ARC is that they replaced...
Efficient string concatenation in C++
...ould eliminate some return value copies. That is because in a successively called operator+ it does not know whether the reference parameter references a named object or a temporary returned from a sub operator+ invocation. I would rather not worry about it before not having profiled first. But let'...
Is using a lot of static methods a bad thing?
...ve the same output for the same inputs. It modifies no globals and doesn't call any "unsafe" static methods of any class. Essentially, you are using a limited sort of functional programming -- don't be afraid of these, they're fine.
An "unsafe" static method mutates global state, or proxies to a glo...