overriding

What is the right way to override a setter method in Ruby on Rails?

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I am using Ruby on Rails 3.2.2 and I would like to know if the following is a “proper”https://stackoverflow.com/”correct”https://stackoverflow.com/”sure” way to override a setter method for a my class attribute. attr_accessible :attribute_name def attribute_name=(value) … # Some custom operation. self[:attribute_name] = value end The above code seems to work as expected. However, I would like … Read more

maven command line how to point to a specific settings.xml for a single command?

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Is it possible to point to a specific settings file in order to override the default settings.xml being used by maven for a single command? Example: mvn clean install -Dparam # -> pass specific settings file path as param to override default “home/.m2/settings.xml” 2 Answers 2

In Python, how do I indicate I’m overriding a method?

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In Java, for example, the @Override annotation not only provides compile-time checking of an override but makes for excellent self-documenting code. I’m just looking for documentation (although if it’s an indicator to some checker like pylint, that’s a bonus). I can add a comment or docstring somewhere, but what is the idiomatic way to indicate … Read more

Why does an overridden function in the derived class hide other overloads of the base class?

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Consider the code : #include <stdio.h> class Base { public: virtual void gogo(int a){ printf(” Base :: gogo (int) \n”); }; virtual void gogo(int* a){ printf(” Base :: gogo (int*) \n”); }; }; class Derived : public Base{ public: virtual void gogo(int* a){ printf(” Derived :: gogo (int*) \n”); }; }; int main(){ Derived obj; … Read more