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!
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.
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!
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!!
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)
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 🎉
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...
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.
This is done through reflection. Reflection is like magic indeed. You can access private fields of one class from another class with the help of reflection. If it simplifies our lives, it is a good thing.
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!
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.
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. :)
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.
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?
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.
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
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?
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.
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...
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.
This video removed all my confusions. Thanks Dan. Great work.
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!
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.
This is an ABSOLUTE banger
Finally i have no misunderstandings on beans, components and even spring container
Great video. Thanks for making!
Thanks for watching
I absolutely love your videos, please don’t stop making!
This is gold, brilliant Dan, you are amazing.
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!
Thanks Dan! your example was clear and helped me to solidify my knowledge!
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!!
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.
As always, very valuable content for free. Much Appreciated!
Finally! Finally a video that explains this without ramming meaningless jargon down my ears 😁 You've got yourself a new subscriber!
You are a true hero Dan!! You’ve just breakdown it so understandable that I’m very impressive.. thank you thank you
Finally!!! Thank you, Dan. You're the best✌
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)
Incredibly illuminating. Thank you!
Understood clearly. Thanks!
Thank's a lot ! Your explanations really helped me to understand how Spring Beans work :D
You're great Dan, thank you and happy coding! 😃
Very Cool video @Dan ! For anyone who can't see spring plugin, Spring plugin is available in Ultimate Edition , not the free one.
youre tutorials are bot deep enough, i stii do nit know what beans
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.
no joke this tutorial of bean and component 100% clear than water.
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 🎉
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...
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.
😂
This is done through reflection. Reflection is like magic indeed. You can access private fields of one class from another class with the help of reflection.
If it simplifies our lives, it is a good thing.
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!
Thanks @dan, i find it useful. Thanks
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.
Excellent explanation, got some things cleared
Can you create a spring security crash course as well please ?
My goodness yes! This would be so helpful.
He has a playlist on spring security
also he recommended Laur Spilca on that particular topic
Thak you for the tutorial. I have a question. How can i get the same UI of the Intellij IDEA like yours?
Thanks Dan, it was helpful!
Thank you, Dan!! So helpful 💪
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. :)
Wow! It is Ken! 😮
@@DineshkumarPuli Snicker. No, it's Dan :-)
Hey Dan what's the theme you are using?
Nice shirt, I got mine from Devnexus!
Which theme are you using in your IntelliJ?
Thank you for the video!
Thanks for the great content! Could you share the font you're using?
i think it's cascadia-code font of microsoft
Nicely done!
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.
Can you cover spring beans and concurrency?
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?
is beans closer to classes or instance of classes ?
Awesome explanation!
Thank you!
Very good and dense content! Thx
which vscode theme were you using here? I find yours way less cluttery looking than mine.
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.
Thank you Dan! Quality content!!!
It's really helpful explanation. Thanks Dan!
Thanks Dan, these are very helpful.👍
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
what is the shortcut for emoji please? 😄
Thanks , it is really helpful.
Nice video ! how do i get spring in tool window . Is it only on ultimate edition ?
Why does @Bean doesn't work if you are returning a Collection type and you have to use @Resource?
Thanks ❤️
Why do you use a CommandLineRunner instead of just running System.out.println()
Nice job!
You didn't show how to get that spring view tool
Thank you, really helped
Dude, you explain it so well, that when I have questions about Spring, I go to your channel. Thanks for your work!
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?
He literally explained it in this video. It's not rocket science.
Good Tutorial
Really clear!3ku
我不会英语，但是通过字幕我学习的很慢但是我会坚持的
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.
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...
What's wrong with your camera? Adjust the focus before recording a video
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.
/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/