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How to “perfectly” override a dict?
...inimal version that shuts the ABC up.
from collections.abc import MutableMapping
class TransformedDict(MutableMapping):
"""A dictionary that applies an arbitrary key-altering
function before accessing the keys"""
def __init__(self, *args, **kwargs):
self.store = dict()
...
What is the maven-shade-plugin used for, and why would you want to relocate Java packages?
...e you will need only one big JAR instead of tons of small JARs to run your app. It also ease distribution in some case.
Just a side-note. Avoid using uber-jar as Maven dependency, as it is ruining the dependency resolution feature of Maven. Normally we create uber-jar only for the final artifact...
Monad in plain English? (For the OOP programmer with no FP background)
... int and returns a Nullable<int> can now have the nullable semantics applied to it.
Furthermore: suppose you have two methods
Nullable<int> X(int q) { ... }
Nullable<int> Y(int r) { ... }
and you want to compose them:
Nullable<int> Z(int s) { return X(Y(s)); }
That is...
Can unit testing be successfully added into an existing production project? If so, how and is it wor
...n a code base with 230 000 + production LOC (real time financial Win-Forms application). That may sound low, but the result was a significant improvement in code quality and defect rate - plus improved morale and profitability.
It can be done when you have both an accurate understanding and commitm...
Understanding PrimeFaces process/update and JSF f:ajax execute/render attributes
...through the entire JSF lifecycle upon (partial) form submit.
JSF will then apply the request values (finding HTTP request parameter based on component's own client ID and then either setting it as submitted value in case of EditableValueHolder components or queueing a new ActionEvent in case of Acti...
Differences between Ant and Maven [closed]
...works. Even though, I'm very much convinced that Maven makes sense, I'd happily use Ant + Ivy with a project team that had a very sharp build engineer. That being said, I do think you'll end up missing out on a number of valuable plugins such as the Jetty plugin and that you'll end up doing a w...
Is Java really slow?
...ages (if they use standard libraries).
There is no excuse for "slow" Java applications now. Developers and legacy code/libraries are to blame, far more than the language. Also, blame anything 'enterprise.'
In fairness to the "Java is slow" crowd, here are areas where it is still slow (updated for ...
Daylight saving time and time zone best practices [closed]
...MT. Therefore, plan to convert UTC timestamps to a local time zone before applying application logic.
Remember that time zones and offsets are not fixed and may change. For instance, historically US and UK used the same dates to 'spring forward' and 'fall back'. However, in 2007 the US changed the ...
Why should I use a pointer rather than the object itself?
...inters?
The important take-home message is that you should always use the appropriate tool for the job. In almost all situations, there is something more appropriate and safer than performing manual dynamic allocation and/or using raw pointers.
Dynamic allocation
In your question, you've demonstr...
Role-based access control (RBAC) vs. Claims-based access control (CBAC) in ASP.NET MVC
...to update all of your MVC Action methods Authorize attribute, compile your application, test and deploy. Some days later, you decided, not marketing but some other role should be allowed to do the task, so you search in your codebase and delete all 'Marketing' from Authorize attribute and add your n...