Spring Boot - @Autowired, @Qualifier, @Primary, @Required | Simple Programming

Welcome to Simple Programming
We are going to cover on the most important topics in spring, and its the most sought topic in interviews that often confuses the candidates.
Autowire on Properties / Autowire by name
Autowire on Setters / Autowire by type
Autowire on Constructors
along with the above we will also look at,
@Qualifier, @Primary, and @Required

[@minor12828]

Sir you are dropping thousand dollars knowledge on this video. Very very very helpful. Thank you very much.🤝

[@jasper5016]

It cannot be simpler than that. Thanks a lot. Rooting for your upcoming videos.

[@omkarmarbhal]

Very Simple and good explanation with a practical approach. Thank You Sir.

[@prajyotlawande193]

I mean I've known all this for years but this video hit differently 👍🏼

[@samimahmed3822]

Very important points learned even after working for 1.5 years. Thank You.

[@pratikbondarkar5128]

🙏🙏🙏

[@mohamedtaboubi]

Very good explained, thx

[@maruthidanda2364]

Very easy to understand with ur words sir.thank you so much and I hope will continue with this way

[@RanjitKumar-kb7zt]

I'm glad that I found this channel :)

[@kathiravanbalakrishnan3149]

Thank you for your awesome explanation sir.

[@sreddy8141]

Thanks a ton, so cleared a lot of confusions ,keep going sir.

[@ABTEJA]

Crisp and clear explanation bro..

[@akki7949]

Hats off.. so many important concept in simple way

[@dynamicdeveloper6658]

Sir your explanation skills are great.
Keep uploading such knowledgeable contents.

[@PathikDave]

the most simplest with practical explanation and we understood the concept. Thanks you.

[@venkateshbabua1453]

Great explanation keep continue your great work

[@satheeshguru6080]

Clear explanation. Thanks much 🙏

[@joelchabzola8870]

Thanks for sharing your knowledge. You saved my work.

[@dhirajchand3659]

OMG.. Thank you so much for this video..

[@AmeyChittar]

Best and simplest example for primary and qualifier.. subscribed. Thank you. Will be waiting for more videos😊

[@jonsnow9246]

Thank you! Good explanation

[@sachinkumarsingh538]

Thank you. You made my day, you have cleared my doubts

[@divinity5250]

This video easily explains the very tiny difference between use of @Autowire in constructor injection and setter injection.

[@ashisswarn2781]

Well explained.!! appreciated!!!

[@prithvisinh]

Very good explanation.

[@satria78ful]

Thank you sir, nice video. Your explanation helped me to understand it.

[@cloud_Engineer]

Absolute gold ...!!!!

[@surya5064]

wow what a great explanation...!!

[@ranjan098]

Super explanation !!! thank you !!!

[@atlantagroup3382]

great explaination!

[@akshayteli5613]

Thanks for making the video. Good explanation. When do we use required=false as it will always take us to nullpointerexception?.

[@rahulraj-hu5xr]

Excellent explanation!!!!

[@balakrishnab9256]

very nice explanation. Thank you

[@srikanthjanapati4247]

Great explation

[@petervalencic5485]

Thank you!

[@sparrownature9189]

Very good explaination

[@89dillip]

good depth explanation

[@aurojitbasak3249]

Great explanation.... Liked it.

[@krishnasuripaka2480]

Super Explanation

[@Ravikumar-gj6qw]

Great info 👍

[@emilefeltesse]

What are the spring boot params to use before this (group/artifact/...)?

[@Rash1987nus]

highly appreciable.... explained various scenarios of autowiring in simple manner

[@vickyanand5898]

what do you mean by autowiring here ?

[@multicellular2]

@@vickyanand5898 he very clearly means auto wiring the beans for DI. Ok?

[@kirankumar-vz6jj]

Thanks so much ...Time saved

[@GoogleUser-id4sj]

Good video!

[@ajaysrinivasan2759]

Fully understood Thankyou sire

[@anandbharadwaj]

We also have to put @Qualtifier ("value") in component class so right ,where as in case if multiple implementations.

[@fairozahmed6888]

Awesome

[@Anushaaa_]

Very good explanation...

[@prithvik8448]

Great demo

[@furkankamaci6180]

Great explanation

[@SurajSingh-fn2ib]

Thank you

[@dfytq]

is it possible to make the qualifier("dog") value dynamic? So that I can set the dog/cat based on user input?

[@ahmetdemir8036]

thank youuuuuu

[@divyeshprajapati8562]

Simple explanation 🙃, as name suggests:)

[@karthiky898989]

Super topic. One suggestion is please change the title to Spring Core so that youtube can catch it easily. I assume this is the #primary topic #qualified in commonly #required Spring core terminologies.

[@shaleenmadlapure1405]

excellent👍

[@sureshdhulipudi600]

Super 😍😍😍

[@vivekguptacs]

Nice explanation.
I want to add one thing here.
Create Empty constructor. with Autowired Constructor with Animal Param ( having qualifier ("dog")
then it will work.

[@jonsnow9246]

Why is that so? Can you please explain?

[@PrabhunathYadav]

Thanks

[@mahaveersingh2984]

super-duper explanation

[@biswajitbaidya4650]

Nice content

[@satyateja5719]

Gud explanation

[@parisiprem6342]

that's beautifully explained with a simple scenario ..... many thanks

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[@jackbrian6210]

@Harlem Joey Instablaster ;)

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[@jackbrian6210]

@Harlem Joey no problem xD

[@urmilkapadia9427]

What is by default type or scope for autowire? byName or bytype

[@KazakovVsevolod]

Is your code available in git repo ?

[@momskitchen906]

Sir i m new to spring can u suggest from where i need to start

[@karamjitsinghsehdev3451]

Well explained

[@dhivyakuppusamy6034]

what is the difference between constructor injection and setter injection with required=true

[@roysayantansunny1]

super like

[@ShekharGupta-de8jr]

Thanks for addding good points and explanation. I have one doubt. If we use @Qualifer and give be bean ID. Doesn't it violate runtime polymorphism of our interface?

[@prajapati-parmod]

Hi,
Based on the scenario I want to use both of them(dog and cat) in different methods.
How we can achieve (@Qualifier and @Primary) only point Cat if I use.
in Controller I have 2 endpoints
@GetMapping("/cat") same for dog
Should I declare 2 variables
@Qaulifier("cat")
@Autowired
Animal cat
Please suggest

[@manikantaammula9279]

May we know the tutor name??

[@vishalgaikwad873]

Sir N & C explanation , with all the conditions, except your video no one explained each & every condition of @autowired, specially parameter of constructor and setter method...
TYSM

[@HattieAschan]

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[@Rahulverma-zt3sx]

I think you have stopped making videos. Please don't stop. I request all to subscribe to motivate him.

[@Homelander007]

Appreciate that you tried to explain this but you are missing the key points and the basics - what does each annotation do and their utility. but good effort overall.

[@darthvadar2915]

I agree

[@brahminiannamaneni2171]

Instaed of autowring Animal why cant we autowired driectly ca service or dog service

[@rahulbhagwat4010]

This is a good question which kept me wondering too
Did you get the answer for this?

[@rahulbhagwat4010]

This is a good question which kept me wondering too
Did you get the answer for this?

[@wewe-fx6un]

White ide hurts my eyes