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Chain Of Responsibility Design Pattern with Java Coding Example for Beginners
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Chain-of-responsibility design pattern lets more than one object handle a request without mutual knowledge. This pattern avoids coupling between the sender of a request and the possible receivers. We place all receivers in a chain which lets the receiving objects pass the request along to the next receiver in the chain until one receiver handles it, or the end of the chain is reached.
The Chain of Responsibility design pattern allows a number of classes to attempt to handle a request, without any of them knowing about the capabilities of the other classes. It provides a loose coupling between these classes; the only common link is the request that is passed between them.
Chain of responsibility is used when we have series of processing. So the request is taken up by the first handler, he either can handle part of it or cannot, once done he passes to the next handler down the chain. This goes on until the proper handler takes it up and completes the processing. Upon receiving a request, each handler decides either to process the request or to pass it to the next handler in the chain.
** Where to use Chain of Responsibility Design Pattern **
1. When more than one object may handle a request and the handler isn't known.
2. When you want to issue a request to one of several objects without specifying the receiver explicitly.
3. When the set of objects that can handle a request should be specified dynamically.
** Advantages of Chain of Responsibility Design Pattern **
1. It reduces coupling.
2. It increases the flexibility of handling a request.
** Topics Covered **
1. Recap of Iterator Design Pattern
2. Introduction of Chain of Responsibility Design Pattern
3. Usage of Chain of Responsibility Design Pattern
4. Example of Chain of Responsibility Design Pattern
5. Java Code Implementation of Chain of Responsibility Design Pattern
6. Advantage of Chain of Responsibility Design Pattern
7. Summary of Chain of Responsibility Pattern
#chainofresponsibilitypattern #chainofresponsibilitydesignpattern #designpatterns
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The Chain of Responsibility design pattern allows a number of classes to attempt to handle a request, without any of them knowing about the capabilities of the other classes. It provides a loose coupling between these classes; the only common link is the request that is passed between them.
Chain of responsibility is used when we have series of processing. So the request is taken up by the first handler, he either can handle part of it or cannot, once done he passes to the next handler down the chain. This goes on until the proper handler takes it up and completes the processing. Upon receiving a request, each handler decides either to process the request or to pass it to the next handler in the chain.
** Where to use Chain of Responsibility Design Pattern **
1. When more than one object may handle a request and the handler isn't known.
2. When you want to issue a request to one of several objects without specifying the receiver explicitly.
3. When the set of objects that can handle a request should be specified dynamically.
** Advantages of Chain of Responsibility Design Pattern **
1. It reduces coupling.
2. It increases the flexibility of handling a request.
** Topics Covered **
1. Recap of Iterator Design Pattern
2. Introduction of Chain of Responsibility Design Pattern
3. Usage of Chain of Responsibility Design Pattern
4. Example of Chain of Responsibility Design Pattern
5. Java Code Implementation of Chain of Responsibility Design Pattern
6. Advantage of Chain of Responsibility Design Pattern
7. Summary of Chain of Responsibility Pattern
#chainofresponsibilitypattern #chainofresponsibilitydesignpattern #designpatterns
** Full Video Link **
** Previous Video Links **
** GITHUB Project **
** CHECK OUT OUR OTHER VIDEOS **
** CHECK OUR PLAYLISTS **
Docker Containers Complete Tutorial
GITHUB Repository Tutorial | Complete Guide to GITHUB for Beginners
** ABOUT OUR CHANNEL **
CodeOneDigest is a youtube channel that produces videos on programming languages, cloud and container technologies, Software design principles, Java frameworks in English and Hindi languages.
Dosto, CodeOneDigest youtube channel pe aapko programming languages, container technology, cloud computing, software engineering se related videos milenge.
Check out our channel here:
Don’t forget to subscribe!
** OUR WEBSITE **
** GET IN TOUCH **
FOLLOW US ON SOCIAL - LIKE, SHARE & SUBSCRIBE
Get updates or reach out to Get updates on our Social Media Profiles!
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