Should you ever use protected member variables?
Should you ever use protected member variables? What are the the advantages and what issues can this cause? ...
protected
Should protected attributes always be banned ?
I seldom use inheritance, but when I do, I never use protected attributes because I think it breaks the encapsulation of the inherited classes. Do you use protected attributes ? what do you use them for ? ...
Fighting with Protected Mode in Vista
Our application commonly used an ActiveX control to download and install our client on IE (XP and prior), however as our user base has drifted towards more Vista boxes with "Protected Mode" on, we are required to investigate. So going forward, is it worth the headache of trying to use the protected mode API? Is this going to result in ...
Inheritance trees and protected constructors in C#
Given the following inheritance tree, what would be the best way of implementing it in a way that works? abstract class Foo<T> : IEnumerable<T> { public abstract Bar CreateBar(); } class Bar<T> : Foo<T> { // Bar's provide a proxy interface to Foo's and limit access nicely. // The general public shouldn't be making these tho...
In Java, what's the difference between public, default, protected, and private?
Are there clear rules on when to use each of these when making classes and interfaces and dealing with inheritance? ...
What's the best way to unit test protected & private methods in Ruby?
What's the best way to unit test protected and private methods in Ruby, using the standard Ruby Test::Unit framework? I'm sure somebody will pipe up and dogmatically assert that "you should only unit test public methods; if it needs unit testing, it shouldn't be a protected or private method", but I'm not really interested in debating t...
Can you have protected nested classes in C++?
I have a class that only really ever needed by classes in a certain class hierarchy. I wanted to know if it is possible to nest the class in the highest class's protected section and have all the other classes automatically inherit it? ...
In C++ why is grouping not forced by the language on public, private and protected members of a class/struct?
Is it only to allow logical grouping? ...
Can you ever have too many "protected virtual" methods?
Here's a question for those of you with experience in larger projects and API/framework design. I am working on a framework that will be used by many other projects in the future, so I want to make it nice and extensible, but at the same time it needs to be simple and easy to understand. I know that a lot of people complain that the .N...
Java Protected Access Not Working
In java, there's three levels of access: Public - Open to the world Private - Open only to the class Protected - Open only to the class and its subclasses (inheritance). So why does the java compiler allow this to happen? TestBlah.java: public class TestBlah { public static void main(String[] args) { Blah a = new Blah...
Detecting Vista IE7 Protected Mode with Javascript
I'd like to be able to detect Vista IE7 Protected Mode within a page using javascript, preferably. My thinking is to perform an action that would violate protected mode, thus exposing it. The goal is to give appropriate site help messaging to IE7 Vista users. ...
c# using setters or getters from base class
Is it recommended to set member variables of a base class to protected, so that subclasses can access these variables? Or is it more recommended to set the member variables to private and let the subclasses get or set the varible by getters and setters? And if it is recommended to use the getters and setters method, when are protected v...
Private/protected inheritance
In C++, I can't think of a case in which I would like to inherit private/protected from a base class: class Base; class Derived1 : private Base; class Derived2 : protected Base; Is it really useful? ...
mocking superclass protected variable using jmockit
Hi, I couldnt able to mock the protected varibale defined in the superclass.i could able to mock the protected method in superclass but couldnt to mock the protected variable in to the subclass ,wherein am writing the testcase for subclass,Please if anybody out there has any soluton for it .please reply. Thanks Shashi ...
How are java.lang.Object's protected methods protected from subclasses?
The keyword protected grants access to classes in the same package and subclasses (http://java.sun.com/docs/books/tutorial/java/javaOO/accesscontrol.html). Now, every class has java.lang.Object as superclass (http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html). Hence I conclude that every class may access java.lang.Object's ...
Data corruption in protected access in c++
Variables "protected" are prone to be malicious changed by derived class? Should I use "private" in base class variables instead of "protected"? ...
Why can't I have protected interface members?
What is the argument against declaring protected-access members on interfaces? This, for example, is invalid: public interface IOrange { public OrangePeel Peel { get; } protected OrangePips Seeds { get; } } In this example, the interface IOrange would guarantee that implementors at least provide an OrangePips instance to their...
Why can't I access C# protected members except like this?
This code: abstract class C { protected abstract void F(D d); } class D : C { protected override void F(D d) { } void G(C c) { c.F(this); } } Generates this error: Cannot access protected member 'C.F(D)' via a qualifier of type 'C'; the qualifier must be of type 'D' (or derived from it) What in ...
Is the use of protected methods a bad thing?
A friend of mine has just posited that protected methods (yes, methods) constitute a code smell. That is, they're indicative of potential bad programming practice. My gut says he's wrong, but I'm struggling to come up with a good example of where they're a good, legitimate solution. For example, I might be tempted to put the protected m...
Get flv file with PHP for embedded swf control
So would like to do: get an flv file from a protected directory and feed it to a swf embedded player as a parameter using PHP. Is this possible? Sending the contents of the file to the embedded player does not seem to work. ...