Spring Beans Showdown: Unraveling the Mystery of @Component vs @Bean!

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  • Опубліковано 21 лис 2024

КОМЕНТАРІ • 81

  • @satyarajawasthismart
    @satyarajawasthismart Рік тому +32

    Can you make a crash course on Microservices too ?
    Really love to learn from your experience and way of explaining things. You really inspire me to teach others. Thank you for being there Mr. Vega.

  • @SeTrous
    @SeTrous 11 місяців тому +5

    This is an ABSOLUTE banger
    Finally i have no misunderstandings on beans, components and even spring container

  • @meilyn22
    @meilyn22 7 місяців тому +2

    Thank you. Best explanation. I've been hearing those terms and using them, but I never took the time to understand what they mean. Beans put methods in the application context, mostly used with the @Configuration annotation. @Component put classes into the application context. You are awesome!

  • @peachezprogramming
    @peachezprogramming 7 місяців тому +2

    Great video. Thanks for making!

    • @DanVega
      @DanVega  7 місяців тому

      Thanks for watching

  • @shreypatel9379
    @shreypatel9379 10 місяців тому +1

    This is THE explanation. Like you explained everything in a much simpler way than all the other sources I have referred to. Thanks for such a wonderful tutorial!

  • @christopherreif3624
    @christopherreif3624 Рік тому +9

    I absolutely love your videos, please don’t stop making!

  • @Anonymous-zo9qr
    @Anonymous-zo9qr 26 днів тому

    Understood clearly. Thanks!

  • @angelmotta
    @angelmotta Місяць тому

    Thanks Dan! your example was clear and helped me to solidify my knowledge!

  • @donglaizhang7895
    @donglaizhang7895 7 місяців тому +1

    Hi Dan, this is fantastic!! A lot of of these detailed information is hard to be found easily. With most of the tutorials and examples online, they only tell you what/how to do, but not why. Thank you!!

    • @DanVega
      @DanVega  7 місяців тому

      I feel the same way and I am often trying to answer the questions that I have as well. Really glad you enjoyed it and thank you for the kind words.

  • @connor8875
    @connor8875 7 місяців тому

    Finally! Finally a video that explains this without ramming meaningless jargon down my ears 😁 You've got yourself a new subscriber!

  • @myst.youtube
    @myst.youtube 9 місяців тому

    no joke this tutorial of bean and component 100% clear than water.

  • @shahinrajaei1666
    @shahinrajaei1666 2 місяці тому +1

    youre tutorials are bot deep enough, i stii do nit know what beans

    • @enerjiCS
      @enerjiCS Місяць тому

      read Spring Start Here chapters 1-4 and then come back, you'll understand it better. that book is worth reading and not too long.

  • @codingwithraphael
    @codingwithraphael Рік тому

    You are a true hero Dan!! You’ve just breakdown it so understandable that I’m very impressive.. thank you thank you

  • @libraniel
    @libraniel Рік тому +1

    You're great Dan, thank you and happy coding! 😃

  • @flow_987
    @flow_987 Рік тому

    Incredibly illuminating. Thank you!

  • @samarthurs8000
    @samarthurs8000 Рік тому +1

    As always, very valuable content for free. Much Appreciated!

  • @mehnaazmohiuddin
    @mehnaazmohiuddin Рік тому

    Very Cool video @Dan ! For anyone who can't see spring plugin, Spring plugin is available in Ultimate Edition , not the free one.

  • @yasminaitmaksene5230
    @yasminaitmaksene5230 Рік тому

    Thank's a lot ! Your explanations really helped me to understand how Spring Beans work :D

  • @moonly3781
    @moonly3781 Рік тому

    Finally!!! Thank you, Dan. You're the best✌

  • @nikhilxxsharma
    @nikhilxxsharma 10 місяців тому

    This is gold, brilliant Dan, you are amazing.

  • @itsjaylogan
    @itsjaylogan Рік тому

    Thank you so much. I’m just getting started with Spring and Spring Boot and this video helped me confirm some things I suspected! I will start your Spring training video 🎉

  • @munnieswaroop
    @munnieswaroop 6 місяців тому

    Excellent explanation, got some things cleared

  • @brayanmnz
    @brayanmnz Рік тому +1

    Nice shirt, I got mine from Devnexus!

  • @ddarkodev2923
    @ddarkodev2923 Рік тому

    Thank you, Dan!! So helpful 💪

  • @meysam.85
    @meysam.85 Рік тому

    Thanks @dan, i find it useful. Thanks

  • @KennethKousen
    @KennethKousen Рік тому +7

    Nice job. A couple of quick comments:
    1. I had no idea that IntellIJ had a Spring view. Seems obvious in retrospect, but thanks for that.
    2. I'm surprised you didn't autowire the `RestTemplateBuilder` into the `@Bean` method rather than instantiate it yourself. The builder is available in the application context already, so make it an argument to your configuration method and it'll be autowired in automatically.
    3. Even though autowiring works as long as you have only a single constructor in a class, I usually add `@Autowired` anyway, partly as documentation, and partly as protection in case someone else adds a default constructor, at which point the automatic autowiring wouldn't work any more.
    Just a thought. :)

  • @rajkumarvb5197
    @rajkumarvb5197 9 місяців тому

    Thanks Dan, it was helpful!

  • @ornelfranck
    @ornelfranck Рік тому

    Nicely done!

  • @israelduarte1326
    @israelduarte1326 Рік тому

    Thank you for the video!

  • @random-characters4162
    @random-characters4162 Рік тому

    Very good and dense content! Thx

  • @rapasebastian5678
    @rapasebastian5678 Рік тому

    Great content Dan! I was pretty familiar with all the concepts mentioned here, still the content was refreshing. Love the way you dive into things. Keep it up!

  • @xyvadimxy
    @xyvadimxy Рік тому

    It's really helpful explanation. Thanks Dan!

  • @crillin570
    @crillin570 Рік тому

    Thanks Dan, these are very helpful.👍

  • @petersteel7735
    @petersteel7735 Рік тому

    Thank you Dan! Quality content!!!

  • @gauthamfz19
    @gauthamfz19 Рік тому

    Awesome explanation!

  • @FranklyTerrible
    @FranklyTerrible 10 місяців тому +8

    Not going to lie, this example about beans only confused me more. How does Spring make that vague connection to the Resttemplate method? That seems like dark magic to me...

    • @ИвоСпасов-й5ш
      @ИвоСпасов-й5ш 9 місяців тому +1

      I have been working on Spring projects and gathered some valuable knowledge! Spring basically has the so-called IoC container, which is associated with the dependency injection system it has been integrated with. In simple words, instead of trying to make new objects with the keyword "new" like "new User();", Spring will automatically inject this dependency for you. This can be done in 3 ways: through field, constructor or setter injection. That's it. Also, by default, the instances provided by spring are singleton, namely, only one instance is provided for the entire application context, which of course can be changed if you want.

    • @smadarsh3635
      @smadarsh3635 2 місяці тому

      😂

  • @ravipandey29
    @ravipandey29 8 місяців тому

    Thanks , it is really helpful.

  • @kreativcity
    @kreativcity Рік тому

    Nice job!

  • @MrRexxarHell
    @MrRexxarHell Рік тому

    Dude, you explain it so well, that when I have questions about Spring, I go to your channel. Thanks for your work!

  • @Dina-Barbur
    @Dina-Barbur Рік тому

    thank you, Dan! would you please tell about @component vs @repository. Both annotations are used in infrastructure layer of any REST app (storage or repository packages). I'm slightly confused by such diversity.

  • @adityavardhanagarwal495
    @adityavardhanagarwal495 Рік тому +6

    Can you create a spring security crash course as well please ?

  • @davemerkury
    @davemerkury Рік тому

    Dan! Thank you for your content! It helps me to understand Springboot a lot better! Would you recommend goign through the documentation? I always seem to have trouble with creating queries to retrieve data from mysql.

  • @enesb4797
    @enesb4797 9 місяців тому +1

    should we not use "new" keyword in classes even if they are just regular classes and not beans or components? let's say I have a helper class for math operations, shouldn't I use "new" keyword in its dependencies? (since you said you should stay away from using "new" keyword 6:54)

  • @codex8797
    @codex8797 10 місяців тому

    Thank you, really helped

  • @zakariyaechmaili5647
    @zakariyaechmaili5647 Рік тому

    Thanks ❤️

  • @iterator
    @iterator Рік тому

    Thanks for the great content! Could you share the font you're using?

    • @fatihkobacik
      @fatihkobacik Рік тому

      i think it's cascadia-code font of microsoft

  • @FredrikRambris
    @FredrikRambris Рік тому +1

    How about factories? Is there a way to register a factory that will return a bean when needed. Say a bean with generics. Is there such a way to easily register a bean factory?

  • @keithlockey7129
    @keithlockey7129 Рік тому

    Hi, I like your videos. I found a mistake on your Recent Articles page on your blog. You put "I like to write about anything thta I am currently working or something new that interests me." You misspelled the word "that". Thanks.

  • @mlensment
    @mlensment Рік тому

    Can you cover spring beans and concurrency?

  • @KatarinaClaes-q1p
    @KatarinaClaes-q1p Місяць тому

    which vscode theme were you using here? I find yours way less cluttery looking than mine.

  • @crlychar
    @crlychar 11 місяців тому

    Thak you for the tutorial. I have a question. How can i get the same UI of the Intellij IDEA like yours?

  • @anyname8803
    @anyname8803 Рік тому

    Hello Dan,
    defining beans with @Bean annotation isn't truly an inversion of control, since we are returning a new bean explicitly with the "new" keyword like so:
    @Bean
    public SomeObject myBean(){
    return NEW SomeObject()
    }
    Please correct my understanding.
    Thanks

  • @ningw5169
    @ningw5169 Рік тому

    Hey Dan what's the theme you are using?

  • @francogiulianopertile279
    @francogiulianopertile279 Рік тому

    Good Tutorial

  • @shashanksurekhapapde6143
    @shashanksurekhapapde6143 Рік тому

    Nice video ! how do i get spring in tool window . Is it only on ultimate edition ?

  • @Curiosidades-ki2oi
    @Curiosidades-ki2oi Рік тому

    Which theme are you using in your IntelliJ?

  • @kyleryxn
    @kyleryxn 8 місяців тому

    I like this video, but I think you cold update it with more clarification on best use cases for each. Like, when is it better to use @Component vs. @Bean?

    • @meilyn22
      @meilyn22 7 місяців тому

      He literally explained it in this video. It's not rocket science.

  • @GoodBoy-lr7up
    @GoodBoy-lr7up 5 місяців тому

    Really clear!3ku

  • @mzlobecki
    @mzlobecki Рік тому

    what is the shortcut for emoji please? 😄

  • @USONOFAV
    @USONOFAV Рік тому

    Why does @Bean doesn't work if you are returning a Collection type and you have to use @Resource?

  • @Keteku.
    @Keteku. Рік тому

    Why do you use a CommandLineRunner instead of just running System.out.println()

  • @annyeong987
    @annyeong987 10 місяців тому

    You didn't show how to get that spring view tool

  • @qzf4928
    @qzf4928 Рік тому +2

    我不会英语,但是通过字幕我学习的很慢但是我会坚持的

  • @kevinmaltby4202
    @kevinmaltby4202 21 день тому

    2:00 I think here you first imply that simply creating an instance of a class means one gets a Spring bean. You then go on to correctly state that a Spring bean is an object that is _managed_ by the spring runtime. Call me a pedant but I think you need to be clear what is and what isn't a Spring bean afterall you are trying to explain what a Spring Bean is.

  • @mTsp4ce
    @mTsp4ce 4 місяці тому

    2:15 is a logical fallacy (affirming the consequent). A spring bean is an instance of a class, but not every instance of a class is a spring bean. Not off to a good start there, buddy...

  • @hypekg5719
    @hypekg5719 Рік тому

    What's wrong with your camera? Adjust the focus before recording a video

  • @otaxhu
    @otaxhu Рік тому

    spring boot and all that thing of beans are bullshit dude it isn't declarative, I builded an application with jax-rs and it hasn't all this "magic things" of the spring runtime handling all the instances in the limbo, jax-rs (now called jakarta-rs) gives you more freedom.

  • @paulhetherington3854
    @paulhetherington3854 5 місяців тому

    /krch dsk bean < R'(4''tvk''btx ruch)< ~tmp2''kf(2 inch 824x) @ rdsk~II tmp p''TdDxn gml rul txt tun//J namz krch 4''Rtvk abv + 2''UI' kol rul vd sim LN'' < rdacht~tmp p''2'(xvtn) rtun bean/
    /rbean dsk~tmp snd ruch vF8''btz dach txt tn R2''p~ K' rch + frch vktd rbean rul~tmp < txt tun ad cmd~gml + wn ml//+ hlf ruch < 28''frch contnt fiji kalchz rdsk - 4''tvk - fz 2''UI' id - txt tun - verifcate/