Questions tagged [observer-pattern]
A software design pattern in which an object, called the subject, maintains a list of its dependents, called observers, and notifies them automatically of any state changes, usually by calling one of their methods.
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Scheduler built with observables v2 (follow-up)
It would probably be too easy if the old Scheduler worked as intended being that simple. But an eye-openig review showed that from time to time it'll miss one ...
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Scheduler built with observables
I sometimes have to schedule some tasks and wanted to have my own reusable scheduler. Since I like the Rx, I build it on top of it.
Follow-up
There is a newer version of the ...
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Threadsafe oneshot-event which fires on subscription if the event was fired in the past
Assumptions
Basically, a Connection class has a "Disconnect" event. Subscribing to this event isn't thread-safe, because the disconnection may fire from another thread right before I subscribe. So ...
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Message bus in C#
I wrote a MessageBus class whose only purpose is to deliver messages from object to object without direct link between them.
I encountered a problem with duplicate ...
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JS stopwatch using the observer pattern
I'm learning OOP and also trying to learn and implement some design patterns.
This question is a follow-up of Stopwatch interface OOP (Vanilla JS)
The app is available in https://nacho-p5.github.io/
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Observable template in modern C++
I'm trying to create a modern template class for a generic observable:
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Implementation of Observer Pattern in C++14
I have written a small class for implementing the observer pattern in C++(14). I would welcome any comments, corrections criticisms and suggestions.
Observable.h:
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Scheduling using System.IObservable 2.0
As a follow up to this first attempt to create and use my own IObservable<T> implementation, this is version 2.0. The goal has been to correct the code where ...
user73941
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Scheduler built with observables v3 (follow-up) - now testable
This is a 2nd follow-up to my previous one about a Scheduler built with observables.
Although the last one was working correctly, it was only possible to see this ...
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Scheduling using System.IObservable
With great inspiration from t3chb0ts ongoing work about scheduling, cron jobs etc. (last post here), I decided to make my own version of the Scheduler - using the observer pattern - as a learning ...
user73941
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java.util.Observable but with generics to avoid casts
This is an Observable class similar to java.util.Observable. The difference is that it uses generics to avoid casts. The ...
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Class simulating a connection among two pins
Following this post and the one before that, here I am asking for a review on another piece of code: the connection among two pins. As usual, be merciless in your review. Here it goes:
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Does Java need an Observable object with generics?
This is the follow-up question from here.
This is an Observable class similar to java.util.Observable. The difference is that ...
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