campbelltech

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@dipikabhagat5252 10 күн бұрын

Excellent tutorial .

@empathetic24671 12 күн бұрын

Very informative. <3

@edoreemmanuel4250 24 күн бұрын

The best tutorial I have seen so far. cheers mate

@campbelltech 24 күн бұрын

Thank you!

@igormixx Ай бұрын

You've missed a client isolation implemanaton which would isolate from growing list of your Branch classes. You should have something like Branches class which would compound of all branches, Basically O/C Principle.

@rsKayiira Ай бұрын

Excellent explanation thank you so much

@campbelltech Ай бұрын

You are welcome!

@NirmalRaj4d Ай бұрын

Wonderful lesson❤ Simple, and yet covered all important aspects.

@campbelltech Ай бұрын

Thank you Nirmal!

@abdullahbinmamun3803 Ай бұрын

your explanation is very helpful , but I think there is still chances of being the OCP violation. because, in the future we can add ApplePay, VisaCardPay, MastercardPay etc type of payment methods. then we will have to rewrite our enum (basically we will have to add new options in the PaymentMethod enum) and we will have to add more options in the "switch case" PaymentFactory.create method. in this case we can use the help of reflection. so, we won't have to add any more new options to any enum or swith case. Please correct me if I am wrong. I will be delighted to know my mistakes. Thanks a lot for you video. I hope and pray for your wellbeing.

@byronbaronv Ай бұрын

This only video resumed more than 6 hours in-person classes and three times more hours of study. At almost 50 my head is not that fast to understand these concepts, so thank you very much for this priceless piece!

@campbelltech Ай бұрын

You are welcome, Byron. Thank you for the amazing feedback. We love to simplify complexity.

@souvikdatta97 Ай бұрын

Amazing

@campbelltech Ай бұрын

Thanks!

@danielvisan3405 2 ай бұрын

thank you!

@campbelltech 16 күн бұрын

You're welcome

@m31coding 2 ай бұрын

Great video! The music and your commentary are very relaxing. You might be interested in my library, M31.FluentAPI, for generating builders via Roslyn source code generation. Keep up the great work!

@letsbye 2 ай бұрын

I've read that a global variable in python, natively behaves like a singleton, for instance like all the modules once imported, they don't make a difference when trying to re-import. Could you also touch base on that approach and hopefully explain us viewers pls. thanks in advance.

@letsbye 2 ай бұрын

Good one, also can you extend this to make it a thread safe one ? pls.

@susanfalk2148 2 ай бұрын

Great video! I was watching one of your other videos explaining abstract factory methods in C#, but halfway through it was marked as private, so I didn't get to see the rest. Will it come back up?

@tangomoocow 2 ай бұрын

A good straight forward example that gets the principle across, thanks for posting.

@campbelltech 2 ай бұрын

Thanks Colin, you are welcome

@Nobody-hs9cl 2 ай бұрын

A perfect example of the meaningful application of the Factory Design Pattern. I have seen dozens of videos. This is the only one that clearly shows the benefits of the Factory Pattern.

@campbelltech 2 ай бұрын

Thank you!

@RahulKashyap-yv5ox 3 ай бұрын

Please add more designs pattern in python and some advanced concepts of python . Your lectures are very good 😊

@campbelltech 3 ай бұрын

Thank you Rahul!

@RSWDev 3 ай бұрын

Low key one of the best explanations I’ve seen of this without BS and annoying editing.

@campbelltech 3 ай бұрын

Thank you for the awesome feedback.

@YARBROUGHBRUCE 3 ай бұрын

Best tutorial I have seen on this subject. The example classes were much easier to follow and therefor understand without 'abstract' examples such as foo / bar - thank you!

@campbelltech 3 ай бұрын

Thank you for the awesome feedback. I strive to simplify complexity.

@of_youtube 3 ай бұрын

Why not this.Teacher.MemberwiseClone() as Teacher in 17:52? I liked the video

@botyironcastle 3 ай бұрын

what if you have huge data like 100000000comments in Post object. I don't think you can init a domain object with that much... looks useless to me when dealing with large chunks of data. Thoughts?

@manuelgilsitio 3 ай бұрын

Thanks, great tutorial!!!

@campbelltech 3 ай бұрын

Glad you enjoyed it!

@anurag3487 3 ай бұрын

I think we need to return the individual factories from the provider methods, and not the interfaces.

@thesandboxgamingvideos Ай бұрын

Like this right ? IInternationalFactory internationalFactory = InternationalProvider.CreateCountry(Country.England); ILanguage language = internationalFactory.CreateLanguage(); ICapitalCity capitalCity = internationalFactory.CreateCapitalCity();

@TheIsraelMendoza 3 ай бұрын

Not that it matters too much, since Python is a dynamically typed language. I'm not even sure if a tool like mypy would even catch this. But in 4:15 you want to specify the actual "type" of the method's return type, and not an instance of the expected type: @abstractmethod def list_top_attraction(self) -> list[str]: ...

@adilkhatri7475 4 ай бұрын

can you add all the design pattern for python.

@chrollokillua3945 4 ай бұрын

Hello sir, would like to ask a question regarding the code in the GitHub repository. In the product class (email_message.py) I see that youve placed a setter method for 'to', which is def set_to. But in the video and the repository, the builder class makes use of the get_to method to get the argument passed to provide the value for 'to'. I may have overlooked it on my part, but I dont see the set_to method being used and I'm kind of confused regarding its purpose. I'd just kindly like to know where the set_to method is being used. Thank you very much!

@definitions 4 ай бұрын

would be great if the example shows use case for multiple interfaces in a builder pattern..

@preslaviliev6843 4 ай бұрын

So easy to grasp .

@campbelltech 4 ай бұрын

Thank you Preslav!

@preslaviliev6843 4 ай бұрын

Really helpful !

@campbelltech 4 ай бұрын

Glad it was helpful!

@preslaviliev6843 4 ай бұрын

So simple . Thanks a lot !

@campbelltech 4 ай бұрын

Thanks Preslav!

@user-rm5qq1gd4q 4 ай бұрын

Hello Coach, Hope this message finds you well. I'm reaching out to you today because I believe your courses have the potential to attract a significant number of students and generate positive reviews. Would you be interested in proceeding further? Here are my marketing plan to promote your Udemy course to attract more students and gain many positive 5 stars reviews: 1. Offering free Coupon: Provide a taste of your course content with a free coupon to enroll 1000 students in 5 days. 2. Utilizing Social Media 3. Email Marketing Campaign 4. And possibly running ads. I am looking forward to hearing from you soon.

@campbelltech 4 ай бұрын

Thank you

@user-rm5qq1gd4q 4 ай бұрын

@@campbelltech Hello coach, There are several benefits in promoting your courses and getting positive reviews . Firstly, having thousands of students enrolled in your courses can significantly increase your visibility on the platform, making it easier for new students to discover and enroll in your courses. Additionally, positive 5-star reviews can help establish your credibility as an instructor and encourage more students to enroll in your courses. On the other hand, not having thousands of students and many positive reviews can have some disadvantages. For example, your courses may not be as visible to potential students, making it harder to attract new enrollments. Additionally, having fewer reviews, especially if they are not positive, can make it harder to establish credibility and trust with potential students. Overall, while there are some challenges and disadvantages to consider, the benefits of reaching thousands of students and generating many positive reviews can greatly outweigh them. I look forward to your response, and please let me know if you have any questions on how you can get started.

@javarj6650 4 ай бұрын

Thanks

@campbelltech 4 ай бұрын

You're welcome

@mgaschenbeck 4 ай бұрын

Thanks for this video, it's very helpful! One question, however. Using the example at 19:00, what is the correct way to accept a parameter on line 7? We may need to accept "South" or "North" as parameters of SpainFactory constructor to make sure language changes from "Spanish" or "Catalan" respectively. Is there a better pattern for this or do we simply make custom constructors in SpainFactory?

@edoardogribaldo1058 4 ай бұрын

greatly helpful video thanks!

@campbelltech 4 ай бұрын

Glad it was helpful!

@youmnahamdan4438 4 ай бұрын

Clearly, perfectly explained

@campbelltech 4 ай бұрын

Thank you!

@Benndot97 4 ай бұрын

What extension is he using to get that dropdown menu for creating new C# documents quickly?

@sewcyde 4 ай бұрын

DOTNET DEV KIT EXTENSION

@campbelltech 4 ай бұрын

And C# Extensions by JosKreativ

@InderjeetSingh-lb5rk 5 ай бұрын

UNDERSTOOD EVERYTHING. THANKS MAN!!

@campbelltech 5 ай бұрын

Thanks. You're welcome!

@T0g3ly 5 ай бұрын

Hi I’m learning design patterns I like your videos but can you possibly make a video of when I should maybe use factory method vs abstract. I understand there isn’t a simple answer but maybe a “Look for these signs answer”

@campbelltech 4 ай бұрын

Thanks for the request. I will consider it.

@Guillen8606 5 ай бұрын

Great video. What font are you using on vsCode?

@campbelltech 4 ай бұрын

I use the Material Theme on Linux Ubuntu 22.04.

@biotexcom5464 5 ай бұрын

your video so top. respect from Ukraine. keep making videos.

@campbelltech 5 ай бұрын

Thank you very much!

@lukasberteska8794 5 ай бұрын

SUPER!!! Clear and easy-to-understand example. Thank you Sir !!!!

@campbelltech 5 ай бұрын

Thank you Lukas!

@mohamednassermohamed4431 5 ай бұрын

first: thanks for explanation, second: what is the diagram tool?

@campbelltech 5 ай бұрын

Thanks, I used draw.io for the diagrams.

@ayanesuarezromero4222 5 ай бұрын

Very educational example. Thank you!

@campbelltech 5 ай бұрын

Thanks! You're welcome

@gefirson 6 ай бұрын

When you refactored to use ENUMS, you forgot the factory pattern. You've should have instantiated EnglandFactory/SpainFactory on your provider.

@campbelltech 5 ай бұрын

You are right. I realized this and fixed in our Udemy course that is based on this video. Will have to update it here also.

@szymaniuk1983 6 ай бұрын

sheeeet man. That was a great vid. ❤❤❤

@campbelltech 6 ай бұрын

Thank you 🙂

@user-of3sh4cg7q 6 ай бұрын

Hi can you please tell which keyboard you use the model please

@manikandan027 6 ай бұрын

Excellent Explantion with example

@campbelltech 6 ай бұрын

Thank you for the awesome feedback.

@NewQuietBear 7 ай бұрын

You violate the open/closed principle. Everytime u have to add a new payment method to the factory and enum.

@campbelltech 7 ай бұрын

The client code, however, remains unchanged and follows the open-closed principle. Many would argue that adding the enums and extending the factory method only, still remain within the boundaries of the open-closed principle. If you want to comply on all levels, you will have to use reflection, possibly compromising on performance.

@kylebrault4414 7 ай бұрын

What do you do if CreditCard has a method GetStatement that returns a CreditCardStatementModel object, but GetStatement for paypal returns a PayPalStatementModel object with different fields? Since methods have the same name but a different return type, you couldn't implement a common interface.

@abdullahbinmamun3803 Ай бұрын

In this case we can use abstract class instead of using an interface. which can have an abstract method named "Statement" which will return a statement. other classes like GooglePay, PayPal and CreditCard will override and implement the same "Statement" method but will return different statements. I hope, I explained it correctly.

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