delegation Questions
2
Solved
I want to use Kotlin delegation in a particular context.
The delegate should not be passed in the constructor.
I want to keep a reference to the delegate for later use in the code. From within the...
Meijer asked 21/4, 2022 at 13:18
3
Solved
class A:
__slots__ = ("a",)
def __init__(self) -> None:
self.a = 1
class B1:
__slots__ = ("b",)
def __init__(self, b) -> None:
self.b = b
def __getattr__(self, k)...
Metagalaxy asked 10/8, 2020 at 10:44
11
Solved
Why did the Python designers decide that subclasses' __init__() methods don't automatically call the __init__() methods of their superclasses, as in some other languages? Is the Pythonic and recomm...
Repetitious asked 23/9, 2010 at 21:56
7
Solved
From Apple's own website: "At the heart of Swift's design are two incredibly powerful ideas: protocol-oriented programming and first class value semantics."
Can someone please elaborate what exact...
Dielu asked 30/5, 2016 at 16:40
15
Solved
How does one go about making a delegate, i.e. NSUserNotificationCenterDelegate in swift?
Abruzzi asked 7/6, 2014 at 16:23
4
Solved
Given the code below:
(1) How would you go about writing a spec to test the :allow_nil => false option?
(2) Is it even worth writing a spec to test?
class Event < ActiveRecord::Base
belongs_...
Marked asked 3/2, 2012 at 3:7
3
Solved
How can I get the delegation class of a member property?
By this, I mean is it possible to complete such a function:
inline fun <reified T> delegationExample(t: T) {
for (prop in T::class....
Strake asked 10/9, 2016 at 1:18
1
I'm not sure there is a "proper" way, but before I just bodge together my own incompatible implementation, perhaps there's something in all the standards that can fit my need?
Here's the situation...
Esparto asked 16/6, 2020 at 7:16
5
Solved
I am facing a continuing problem distinguishing delegation, composition and aggregation from each other, and identifying the cases where it's the best to use one over the other.
I have consulted a...
Merriott asked 5/9, 2009 at 22:39
4
Solved
I was looking through the source to SensorManager in Android and found that when you register a SensorEventListener the SensorManager passes control of the listener to a ListenerDelegate.
I only ...
Kaffir asked 23/8, 2011 at 23:24
2
Solved
I have a Java web application which do SPNEGO authentication of clients in a Windows Active Directory environment.
To authenticate the user we use code from the good old SPNEGO SourceForge project....
Salita asked 28/9, 2016 at 9:43
2
Solved
I'm writing a small framework for orchestrating AWS clusters and there are some common hierarchical patterns that appear over and over again. One such pattern is gathering a collection of instances...
Commander asked 22/2, 2014 at 23:1
3
Solved
My view, TuneBook, has several child views of type ClosedTune. I also have separate full page views for each tune, OpenTune. The same events are bound within ClosedTune and OpenTune, so I've design...
Np asked 7/5, 2012 at 16:25
2
Solved
In OOP, a term delegation is mentioned. How is this modelled in a class? I searched on yahoo etc but got links to delegates.
Xerox asked 15/1, 2011 at 18:36
6
Solved
Could someone please explain when would I want to use delegation instead of inheritance?
Inca asked 7/5, 2009 at 1:37
1
Solved
The reason I ask this question is because I'm reading a tutorial that uses delegation. Based on what I've read from other tutorials/articles online, to my knowledge this specific tutorial hasn't cr...
Gareri asked 2/9, 2018 at 16:38
2
Solved
I have delegate methods, which I need to wrap by Delegate Proxy in RxSwift. I have done it using Bond and Reactive, but here, in RxSwift, I am not able to find the proper way to convert it.
Follo...
Agential asked 13/8, 2018 at 6:13
1
Solved
Let's say I have the following interfaces:
interface A
interface B
interface C
I want to create class with multiple upper bounds for types A and B:
class First<T>(val t: T) where T : A, T...
Hypophysis asked 27/6, 2018 at 14:44
1
As to my understanding, the idea of delegating an implementation in Kotlin is to avoid code that looks like this:
class MyClass(val delegate : MyInterface) : MyInterface
{
override fun myAbstract...
Mitten asked 1/1, 2018 at 23:29
0
Let's say I have this class and delegator
class MyObject
def foo
"foo #{bar}"
end
def bar
"bar"
end
end
class MyDelegator < SimpleDelegator
def bar
"decorated bar"
end
end
MyDelega...
Bent asked 12/4, 2018 at 23:11
3
Solved
Could anyone explain the meaning of someViewController.delegate = self and self.delegate? Where do they help us?
Hypothetical asked 18/11, 2010 at 5:27
4
Solved
I have been trying to learn how delegation with protocols work. I understood everything, but I can't think of when to use delegation other than when using table views and possibly scroll view...
Unparliamentary asked 9/11, 2016 at 7:19
1
Solved
Is there any possibility to pass this when delegating class in kotlin?
class SomeFlow : Flow, SmsAuthentication by DefaultSmsAuthentication(this)
It says this does not exist in this context. The...
Illustrational asked 23/11, 2017 at 21:10
1
Solved
From what I understand, class delegation is supposed to
allow object composition to achieve the same code reuse as
inheritance. [wikipedia]
Kotlin supports Class Delegation, and note the fol...
Bighead asked 23/10, 2017 at 9:23
3
Solved
I have the following classes implementing a "Delegation Design Pattern" with an additional DelegatorParent class:
class DelegatorParent():
def __init__(self):
self.a = 'whatever'
class Concre...
Pomade asked 10/10, 2017 at 22:54
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