Programming - What is... Inversion of Control

[@EdwardVarner]

THANK YOU! The best summary I have heard yet: Why IoC is important "Most of the time programmers don't get to choose the DAL, they are handed one" How to solve the why issue "The class no longer creates the DAL. It relies on something else to tell it what data access to use"

[@sebastiankumlin9542]

Second best video on KZbin ever.

[@delcoker3]

Thank you sooooooooooooo much... After 5 years i know what this means

[@toyokenstudio]

Very clear and straight to the point explanation. Thanks!

[@ThemisTheotokatos]

Excellent video thank you. Where is the Dependency Injection video?

[@arugollu]

You made the idea very clear and the way you explained about the control word, I remember the concept better now. Thanks.

[@enricosaccheggiani3192]

Thanks a lot , you have helped me so much . I begin a new job next week and i must explain in details what is inversion of control. Thanks so much All the best regards

[@pavanimmadisetty8481]

Have you made any video for "Dependency Injection" ??

[@creative-commons-videos]

how to resolve dependencies if implementation has circular dependencies ? like Class A need to has instance of Class B, Class B require Class C but Class C require Class A ?

[@madurangawalakuluarachchi7797]

excellent explanation.Nice example. simply IC is outsource to an object factory.

[@scienceblossom6197]

I've just followed you because of this very video. It was awesome, explained with a really good example. Thanks. I wish you were my mentor :D

[@JaidevKhatri12]

I was trying to understand dependency injection in a simple real-world way, this is the perfect example of the same. I would suggest understanding interface thoroughly in order to know Dependency Injection.

[@irfandyjip3246]

Hello @Christian Richards! Could you make the same video about the *Dependency Injection?* It has been 5 years since you made this one. And I love your way of explaining things!

[@vizenzovin]

Short, precise and good explanation of IoC. Thank you

[@NasserTabook]

Could you.. do the Dependency Injection video, in the same simple way..

[@irfandyjip3246]

It has been 5 years since the video is made, yet the 'Dependency Injection' video isn't available yet :(

[@ashishjain871]

Clear and lucid explanation. Thank you.

[@AlbertVilaCalvo]

You should change the video's title to "What is... Dependency Injection" rather than "What is.. Inversion of Control". Dependency Injection is one form of (or one implementation of) Inversion of Control, but there are others. Take a look at the Wikipedia article: en.wikipedia.org/wiki/Inversion_of_control#Implementation_techniques

[@aguilar.fael1992]

Thank you for your comment.

[@kevmac9967]

isn't it inversion?

[@jesseg7841]

You basically explained dependency injection

[@federicocreti7308]

your comment what exactly what I was thinking!!

[@VCSekharParepalli]

Thanks for making this video, but wondering term - "inversion" of control when it looks like it's about transferring the control.

[@KimDamGrnhj]

Very very nice simple explanation! Thanks

[@rayx8916]

I thought there would be more videos in the what is series/playlist. This was a good explanation

[@sunil24sunil]

Well so simply you tightly coupled dal to program .. is that IOC meant to be ?

[@sahawndada]

great vid. Wish you did the DI video

[@maxosall6972]

Simple but clear I hope you do a design patterns tutorial

[@kamlesh3039]

Thank You. It is really very easy to understand. Great Job.

[@naokmoon1487]

Bravo! This is really well explained in very short time! I'm learning about IoC Container that using IoC, DI, actually since I work in WPF MVVM frameworks like MVVM Light and Caliburn Micro. Every frameworks seems to rely totally on IoC and DI principles. I would like to learn more about IoC Container and DI

[@bbabak2]

A minor point, IoC is a principle DI is a pattern under IoC principle

[@premkirankatinedi4479]

This made my head clear. Thanks a lot sir

[@tribet84]

crystal clear, thanks Chris!

[@karthikragunaths]

Thanks for the video. I'm about to start on Spring & this video is going to help me a lot. Great work.

[@aguilar.fael1992]

Nice explanation. Thanks for sharing!

[@syltis1994]

Great explanation, thank you!

[@WebelOne]

Great lecture, thanks for the video!

[@badrulhussain5545]

thanks!!! this is one of the simplest video i seen on the topic. (y)

[@patrickgomes15]

Excellent explanation that clearly brings out the benefits of IoC through DI!

[@FranckMercado]

Great explanation on Inversion of Control, thanks! ... Dependancy Injection please :)

[@ShawkatOsm]

Thanks! I've been doing IoC for long time, but didn't know this step is IoC! And, today in an interview I said- no I haven't done! The interviewer wanna play with terms to gauge your level! :(

[@NasserTabook]

Christian .. thank you ... really I learned a lot from this video and am looking forward to see more videos

[@mansaha9288]

Looking at the example, IoC is simply a kind of Refactoring. The example also lacks of the whole picture because after he “extracts” or refactors the conditional check, the conditional is then replaced by nothing but simple injection of dalType thru Program Class, which at early video was placed in User Class. So, why are you giving us the conditional case, which I think necessary step to allow the use of types of dal (not just inflexibly hardcoding 1 dal type) and then you remove it at the end of the video? Yes you invert it but you also remove the conditional making your video confusing.

[@paulostradioti]

Great video, straight to the point!

[@mritunjayshanker8870]

Thanks for this video.

[@elpirato5428]

thx u r the best

[@youandusprogramming5652]

very well explained!

[@Quynn-Oneal]

thank you very much

[@yangxia9562]

Nice, easy to understand.

[@rajesh35hsp]

thanks

[@OurTechRoom]

I have learn nothing :(

[@abdulhannan1889]

Great Explanation. btw you sound like Steve Jobs a Little :P

[@boonshajayan]

Excellent..!!

[@utubesift]

nice

[@federicocreti7308]

This is Dependency Injection, not IOC

[@amitamit6564]

User user = new User(new MySQLDAL()) is Where Dependency is injected. And In User class constructor public User(IDal dal){...} Control is inverted . i.e. User class no longer controls is DAL .instead calling program is.

[@JorgePicco]

I agree.

[@manchusandy1]

beauty..

[@drcl7429]

Finally the penny has dropped!

[@jahangeershaik8361]

nice than q

[@antonrukhlin2270]

please don't say "sequel". it just sounds weird

[@Kevin5279]

SQL is pronounced as sequel. I guess you already know that. It takes a while to get used to it. I would still prefer the 2 syllable 'sequel' in contrast to saying S-Q-L

[@saswatsenapati7870]

your voice sounds like bill gates...