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Why does calling a method in my derived class call the base class method?
.../override.
You can imagine, that a class, when instantiated, is nothing more than a table of pointers, pointing to the actual implementation of its methods. The following image should visualize this pretty well:
Now there are different ways, a method can be defined. Each behaves different when ...
SQLAlchemy: cascade delete
...s cascade options because I cannot get a simple cascade delete to operate correctly -- if a parent element is a deleted, the children persist, with null foreign keys.
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Pythonic way to check if a list is sorted or not
Is there a pythonic way to check if a list is already sorted in ASC or DESC
23 Answers
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Target elements with multiple classes, within one rule
...
.border-blue.background { ... } is for one item with multiple classes.
.border-blue, .background { ... } is for multiple items each with their own class.
.border-blue .background { ... } is for one item where '.background' is t...
Design Patterns: Abstract Factory vs Factory Method
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Hope this helps. It describes the various types of factories. I used Head First Design Patterns as my reference. I used yuml.me to diagram.
Static Factory
Is a class with a Static Method to product various sub types of Product.
Simple Factory
Is a class that can produce var...
Is asynchronous jdbc call possible?
...t understand how any of the proposed approaches that wrap JDBC calls in Actors, executors or anything else can help here - can someone clarify.
Surely the basic problem is that the JDBC operations block on socket IO. When it does this it blocks the Thread its running on - end of story. Whatever wra...
How do I create a self-signed certificate for code signing on Windows?
How do I create a self-signed certificate for code signing using tools from the Windows SDK?
5 Answers
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Difference between __getattr__ vs __getattribute__
I am trying to understand when to use __getattr__ or __getattribute__ . The documentation mentions __getattribute__ applies to new-style classes. What are new-style classes?
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How do I navigate in the results of Diff
...he code with the diff and it looks great. But how do I go to the next page or the next document.
5 Answers
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Overloading and overriding
... getStuff(int id)
{
//base.getStuff(id);
//or - Get stuff new location
}
}
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