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Difference between FetchType LAZY and EAGER in Java Persistence API?
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Sometimes you have two entities and there's a relationship between them. For example, you might have an entity called University and another entity called Student and a University might have many Students:
The University entity ...
ssh: connect to host github.com port 22: Connection timed out
...le check if this is the reason ... do
ssh -T git@github.com
this should timeout.
If that's the case use http protocol instead of ssh this way
just change your url in the config file to http.
Here is how :-
git config --local -e
change entry of
url = git@github.com:username/repo.git
to
u...
What is a mutex?
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Sometimes the origin of some programming concepts is unclear. A newbie might go around wondering why everyone is talking about regex. It isn't apparent that regex is short for [reg]ular [ex]pression. Similarly, mutex is short for...
Why is list initialization (using curly braces) better than the alternatives?
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4 Answers
4
Active
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Do we need semicolon at the end? [duplicate]
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Sometimes I fantasize about a world where semicolon insertion doesn't exist.
– JAL
Oct 23 '10 at 3:11
1
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Python style - line continuation with strings? [duplicate]
...s not a place to consider performance. If you care about differences at runtime on the order of 100 ns, particularly when concatenating hard coded strings, something is wrong.
– nmichaels
Aug 27 '12 at 13:51
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When should assertions stay in production code? [closed]
...maintenance. Assertions are normally compiled into the code at development time and compiled out of the code for production.
However, later in the same section, this advice is given:
For highly robust code, assert and then handle the error anyway.
I think that as long as performance is not a...
Check if a Postgres JSON array contains a string
...ts where info->'food' ? 'carrots';
Of course, you probably don't have time for that as a full-time rabbit keeper.
Update: Here's a demonstration of the performance improvements on a table of 1,000,000 rabbits where each rabbit likes two foods and 10% of them like carrots:
d=# -- Postgres 9.3 ...
Injecting content into specific sections from a partial view ASP.NET MVC 3 with Razor View Engine
...section"
Typical scenario: In a partial view, only include the block one time no matter how many times the partial view is repeated in the page:
@using (Html.Delayed(isOnlyOne: "some unique name for this section")) {
<script>
someInlineScript();
</script>
}
In a parti...
How does cookie based authentication work?
...ld be something like 'username' and the value would be the username. Each time you make a request to a website, your browser will include the cookies in the request, and the host server will check the cookies. So authentication can be done automatically like that.
To set a cookie, you just have t...