chain-of-responsibility Questions
3
Solved
How Chain of Responsibility Pattern Differs from Decorator Pattern..?
Gutsy asked 15/9, 2010 at 19:49
5
Solved
Recently, I was discussing with another programmer the best way to refactor a huge(1000 lines) method full of "if" statements.
The code is written in Java, but I guess this issue could happen in o...
Penalize asked 28/6, 2009 at 17:59
8
Solved
I'm raising this question because of another question I asked here on SO some days ago.
I had to solve an specific problem, and after two replies I got, I realized two patterns can help to solve th...
Aalst asked 18/2, 2011 at 8:20
10
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Having a chain of "instanceof" operations is considered a "code smell". The standard answer is "use polymorphism". How would I do it in this case?
There are a number of subclasses of a base class;...
Selfdiscipline asked 7/5, 2010 at 16:37
3
Solved
In my current project, I'm using quite a few Chain of Responsibility patterns.
However, I find it a bit awkward to configure the chain via dependency injection.
Given this model:
public interfac...
Matheny asked 2/4, 2019 at 13:45
4
I noticed my code looks really ugly, and is hard to maintain. Basically I need do to some person check. Pseudo code is like this (BTW I can't "cut" anything in query, and it's not really ...
Trelliswork asked 30/3, 2018 at 13:56
2
I am looking into django middleware codebase. I looked into following diagram
So, the diagram is quite clear.
But I have some questions
What happens when exception comes in process_request() m...
Vivisection asked 19/3, 2018 at 14:46
6
Solved
Could somebody provide a simple explanation of the chain of responsibility pattern? I found the wiki article a bit confusing.
Finnell asked 8/2, 2012 at 14:8
3
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I am implementing a chain of responsibility pattern.
I have different policies that can be combined in a list and I have a Processor that processes the list of policies. Each policy can process th...
Autosuggestion asked 3/12, 2013 at 14:52
2
Solved
I'm trying to implement the Chain of Responsibility design pattern in Rust:
pub trait Policeman<'a> {
fn set_next(&'a mut self, next: &'a Policeman<'a>);
}
pub struct Officer...
Colb asked 14/10, 2017 at 10:13
1
Solved
How would you implement Chain of Responsibility pattern using Lambda in Java 8?
I only found a paragraph in this article:
Chain of responsibility
A lambda that may or may not delegate to an...
Muffler asked 7/4, 2016 at 18:33
10
Solved
I'm just reading up on the Chain of Responsibility pattern and I'm having trouble imagining a scenario when I would prefer its use over that of decorator.
What do you think? Does CoR have a niche ...
Radium asked 14/4, 2009 at 14:38
1
Solved
I browsed the web but I couldn't find an answer to my question...
Lets say I have 3 chains. I want the request to pass all 3 chains (it doesn't matter if the chain can handle the request or not). ...
Thallus asked 30/11, 2015 at 20:57
2
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So as I am a bit of electrician and programmer I thought I knew FSM design pattern very well. It is:
We have set of Nodes,
Each Node knows, what to do, when program is in this node,
Each Node con...
Hoopen asked 4/11, 2015 at 20:41
2
Solved
Consider you got several validations. Those validations should only take effect if the object to be inspected is of a certain type. Why would I use a chain of responsibility over a switch-statement...
Terceira asked 19/10, 2015 at 14:44
1
Solved
I am exploring different concepts in python and I happened to read upon an example of coroutines which can be used for the chain of responsibility design pattern. I wrote the following code:
from ...
Pademelon asked 23/2, 2015 at 5:48
1
Solved
I was just looking up Chain Of Responsibility the other day, and I came across this example.
Basically, there is an abstract handler, and then are concrete handlers, each of which implement the ha...
Dacoity asked 22/5, 2014 at 9:38
2
I need to build a process which will validate a record against ~200 validation rules. A record can be one of ~10 types. There is some segmentation from validation rules to record types but there ex...
Bedight asked 1/5, 2014 at 13:42
2
Solved
I've been struggling with the following problem. I have a series of function objects, each with it's own input and output types defined via generic type arguments in java. I would like to arrange t...
Hadji asked 30/12, 2011 at 14:46
1
Solved
I saw a tutorial video explain the chain of responsibility design pattern, and I think I understand how it works but I'm not sure when I would really use it. What are some common usages of the chai...
Binford asked 23/8, 2013 at 15:48
1
Solved
I have to implement a flow diagram structure in C#. I will pass in data to the first node, it will check some data item (boolean) then route the data on to one of two subsequent nodes and so on.
Th...
Cyst asked 13/7, 2013 at 15:20
2
Solved
I'd like to implement a Chain of Responsibility pattern, taking care of the 'broken link' problem as follows:
public abstract class Handler{
private Handler m_successor;
public void setSucces...
Recce asked 20/1, 2012 at 16:54
3
Solved
For my understanding purpose i have implemented Chain-Of-Responsibility pattern.
//Abstract Base Type
public abstract class CustomerServiceDesk
{
protected CustomerServiceDesk _nextHandler;
pub...
Apospory asked 14/4, 2010 at 8:21
3
Solved
I'm building a multiprocess architecture that seems to be a strange meld of a pipeline and a chain of responsibility. Essentially, I have a chain of handlers linked up by queues. Each handler will ...
Honshu asked 5/1, 2010 at 20:44
6
Solved
I have a code that parses some template files and when it finds a placeholder, it replaces it with a value. Something like:
<html>
<head>
<title>%title%</title>
</head&...
Diffractometer asked 18/3, 2009 at 18:38
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