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Is it safe to use Project Lombok? [closed]
...ass annotated with @Data, it will generate the getters and setters for you based on the field names. If you use one of those getters in another class, then decide the field is poorly named, it will not find usages of those getters and setters and replace the old name with the new name.
I would i...
Lock Escalation - What's happening here?
...When SQL is going to change a lot of rows, it's more efficient for the database engine to take fewer, larger locks (e.g. entire table) instead of locking many smaller things (e.g. row locks).
But this can be problematic when you have a huge table, because taking a lock on the entire table may lock...
Why were pandas merges in python faster than data.table merges in R in 2012?
...to accelerate operations like data selection and merges. In this case (database joins) pandas' DataFrame contains no pre-computed information that is being used for the merge, so to speak it's a "cold" merge. If I had stored the factorized versions of the join keys, the join would be significantly f...
What is the performance of Objects/Arrays in JavaScript? (specifically for Google V8)
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Difference between Role and GrantedAuthority in Spring Security
...n id;
}
}
The ids of the roles and operations you create in your database would be the GrantedAuthority representation, e.g. ROLE_ADMIN, OP_DELETE_ACCOUNT etc. When a user is authenticated, make sure that all GrantedAuthorities of all its roles and the corresponding operations are returned fro...
.prop() vs .attr()
...values in other ways: For instance, the parentNode property gets its value based on what its parent element is; an element always has a style property, whether it has a "style" attribute or not.
Let's consider this anchor in a page at http://example.com/testing.html:
<a href='foo.html' class='t...
What are the mathematical/computational principles behind this game?
...ly nice, intuitive way to construct the game with 57 cards and 57 symbols (based on the answer by Yuval Filmus for this question):
For cards with 8 symbols, create a 7x7 grid of unique symbols.
Add an additional 8 symbols for the "slopes" from 0 to 6, plus one for infinity slope.
Each card is a li...
Function overloading by return type?
...dual operator or function call context-independent.
They wanted it to be based only on how the overload was called - not how the result was used (if it was used at all). Indeed, many functions are called without using the result or the result would be used as part of a larger expression. One facto...
How do you detect where two line segments intersect? [closed]
...th detects line intersections and determines the intersection point. It is based on an algorithm in Andre LeMothe's "Tricks of the Windows Game Programming Gurus". It's not dissimilar to some of the algorithm's in other answers (e.g. Gareth's). LeMothe then uses Cramer's Rule (don't ask me) to solve...
Simplest way to do a fire and forget method in c# 4.0
... task.ContinueWith(
t => handler(t.Exception.GetBaseException()),
TaskContinuationOptions.ExecuteSynchronously |
TaskContinuationOptions.OnlyOnFaulted);
}
}
}
This implementation should have minimal overhead: the continuation i...