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0
votes
1answer
80 views

Implement RPC via SIP

Look at the following use case. I have a client (Java) application, which wants to get/set the state of another, remote application (C). The communication between them is done via SIP, which is run ...
2
votes
1answer
78 views

Message Passing: How to detect and/or handle “dead ends”

I'm playing with a mental model for distributed actor system that communicates using messages. In this, it is possible for an actor to create another actor. I've encountered one specific situation ...
0
votes
2answers
165 views

Is often using int constants as parameters in communication between objects considered bad design?

An app I'm working on is designed with MVC. The components often interacts with each other by passing int constants, which then have to be interpreted with if statements. I'm wondering if this is ...
4
votes
4answers
299 views

Design pattern for bidirectional signals/events

This problem feels rather basic, yet I've never known a great solution. I'm looking for a way for components in an application to notify each other while being as decoupled as possible (both at ...
0
votes
1answer
198 views

In objective C, where does the inheritance chain end? [closed]

In objective C, classes are objects, but what object owns the class objects? I am trying to get as detailed an understanding of iOS programming as I can, and this question popped into my head, so I ...
2
votes
1answer
205 views

Objective C - nested messages … confusion about

Wonder if anyone could shed some light on this messaging construct: The documentation says that messages appear btwn brackets [] and that the msg target/object is on the left, whilst the msg itself ...
1
vote
1answer
653 views

How to implement session state in a backend web application?

When using a non-MVC service-oriented/Interactor pattern approach to decoupled system architecture, how is session state implemented? I've been thinking of building the frontend of an application ...
2
votes
1answer
258 views

UI message passing programming paradigm [closed]

I recently (about two months ago) read an article that explained some user interface paradigm that I can't remember the name of and I also can't find the article anymore. The paradigm allows for ...
0
votes
4answers
556 views

Objective-C message passing related queries

I am learning objective-C after having good knowledge of C/C++. I have 2 questions: Are Obj-C message passing and C++ vtable, two different ways of implementing polymorphism or Are they two very ...
10
votes
6answers
3k views

Merits of a “Message Passing” system vs. an “Event Based” system

My question is coming from an somewhat uneducated perspective. What are the relative merits of a "message passing" system vs an "event based" system. Why would one choose one over the other? What ...
3
votes
2answers
991 views

Entity-Component-System architecture: interaction between systems

I am studying the Entity-Component-System architecture philosophy. As I have read about it, a typical entity system has: 1) Entities - which are merely ID tags which have a number of components 2) ...