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What is the difference between the Data Mapper, Table Data Gateway (Gateway), Data Access Object (DA
...ulate the database logic for a specific entity so the calling code has no knowledge of the underlying persistence layer. From my brief research all of them typically implement your standard CRUD methods and abstract away the database-specific details.
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Skip List vs. Binary Search Tree
I recently came across the data structure known as a skip list . It seems to have very similar behavior to a binary search tree.
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Under what circumstances is an SqlConnection automatically enlisted in an ambient TransactionScope T
...t if not all answers on my own, since no one else replied. Please let me know if I've missed anything.
Q1. Yes, unless "enlist=false" is specified in the connection string. The connection pool finds a usable connection. A usable connection is one that's not enlisted in a transaction or one that'...
Efficiency of Java “Double Brace Initialization”?
... }});
}};
return source;
}
}
The returned Map will now contain a reference to the enclosing instance of ReallyHeavyObject. You probably don't want to risk that:
Image from http://blog.jooq.org/2014/12/08/dont-be-clever-the-double-curly-braces-anti-pattern/
3. You can pret...
What's the right OAuth 2.0 flow for a mobile app
... identity features that browsers have
makes it impossible for the user to know if they are signing in to the
legitimate site, and even when they are, it trains them that it's OK
to enter credentials without validating the site first.
Aside from the security concerns, web-views do not share the
authe...
What would cause an algorithm to have O(log log n) complexity?
... n) times before you've reduced the number down to some constant (say, 2).
Now, let's do some math to make this rigorous. Le'ts rewrite the above sequence in terms of powers of two:
√65,536 = √216 = (216)1/2 = 28 = 256
√256 = √28 = (28)1/2 = 24 = 16
√16 = √24 = (24)1/2 = 22 = 4
√4 = ...
How can I use a Python script in the command line without cd-ing to its directory? Is it the PYTHONP
...script does succeed in importing my modules from my custom PYTHONPATH. And now I understand the difference: it is all about script vs. module; command script call vs. python import. Yes, I will in fact use export PATH=$PATH:/home/etc
– Randy Skretka
Nov 11 '13 ...
Is it possible to cache POST methods in HTTP?
...nse regardless of the headers. IE behaves more smartly in this respect.
Now, i want to clear up some confusion here regarding RFC 2616 S. 13.10. POST method on a URI doesn't "invalidate the resource for caching" as some have stated here. It makes a previously cached version of that URI stale, ev...
What is the difference between the $parse, $interpolate and $compile services?
...king use of $interpolate (among other things) to do its job.
$interpolate knows how to process a string with embedded interpolation expressions, ex.: /path/{{name}}.{{extension}}. In other words it can take a string with interpolation expressions, a scope and turn it into the resulting text. One can...
Which kind of pointer do I use when?
...into the other smart pointer types boost provided. I understand that C++11 now provides some of the types boost came up with, but not all of them.
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