32. All Structural Design Patterns | Decorator, Proxy, Composite, Adapter, Bridge, Facade, FlyWeight

[@ElpyazYasarla]

Hi, it should be like this. Controller / anyother -> Facade -> (Service1, service2 .. ) -> Dao. Here, service may have complex logic and may activities where client does not need to know. So, we can use Facade infront of service. So, client can use Facade

[@Oooluuuu]

Thanks again for this, it's absolutely wonderful

[@ConceptandCoding]

thanks

[@kanyakumari7514]

Before starting up with this video, coding examples available in this video?

[@gautampahwa1894]

Hello sir , Thanks for such a wonderful content. Please add more required content to HLD & LLD playlist.

[@ConceptandCoding]

Sure buddy

[@lucygaming9726]

The first example of Facade pattern looks similar to the Proxy Pattern. The second example made the pattern more clear.

[@prabhatkashyap8333]

Shreyansh bhai, please also make All creational and behaviour Design Patterns in 1 video just like this,

[@ConceptandCoding]

All Creational I have already made, pls check video no 27 i think. All behavioral i will make

[@aspiredifferent8085]

Thank You Sir, Very Helpful Content

[@ayushgoyal773]

A very helpful video, please also create one for all behavioural design patterns in a single video.

[@ConceptandCoding]

Yes

[@ayushgoyal773]

@@ConceptandCoding Thanks for replying, I was wondering, by when can we expect the video for all behavioural design patterns. P.S. - I have interviews starting next week.

[@ConceptandCoding]

@@ayushgoyal773 videos are already there, so do check out buddy

[@sergiocosta3471]

Thanks for the good examples and the way that they where explained!

[@ConceptandCoding]

Thanks

[@qR7pK9sJ2t]

Excellent !!!

[@ConceptandCoding]

Thanks

[@chandanshringi1154]

What is the difference between facade and service?

[@dev-rock]

Keep up this great work!

[@ConceptandCoding]

Thank you

[@ankitcode99]

Hi Shreyansh, thanks a lot for the effort you put in making these videos, can you please make a video based on LLD creation of stock brokerage platform like Zerodha, Groww. It would be a good real-life problem to solve.

[@ConceptandCoding]

Sure buddy

[@Vasudha-e9m]

Thanks for the video... But I have a doubt that what is the difference between decorator and composite pattern

[@nehachoudhary9912]

The implementation of "FlyWeight" and "Singleton" kind of looks same. Is there a need to make "flyweight" thread safe too?

[@SuvamSinha-ii5ul]

In Flyweight pattern example, if the same object is returned everytime, wouldn't humanoidRobot1 and humanoidRobot2 just refers to the same object and it would just update the position rather than creation of two objects in two different positions ?

[@nikhilsingh-xu5mi]

If we see decorator pattern the final price will be 215 right as there will be a function override?

[@unemployedcse3514]

Awesome ❤

[@ConceptandCoding]

thanks

[@sivaprasadk3384]

⁠please 🙏🏻 provide this notes as a pdf Thank you 🙏🏻

[@anantjain1263]

Can you make video where multiple patterns are used on same example

[@ConceptandCoding]

Sure

[@yuvraj3728]

Is this lld playlist complete?I am final yr student so doing lld would be fine or hld is also required?Sorry for asking this silly question but i am going to start as i have heard positive reviews abt ur playlist

[@ConceptandCoding]

Start with LLD first buddy, HLD theory you can learn but HLD in interview come after 1 or 2 yr of experience. LLD some videos are left

[@rkreddy2699]

hey what's the difference between bridge and strategy?

[@OMSitapara]

Hi I have a question, in the flyweight pattern instead of caching cant we just use a singleton object to keep the intrinsic data?

[@ConceptandCoding]

umm i dont think it will work out. because then you might have to create so many singleton classes. even object with minor change, you have to create a singleton for it.

[@supratikdutta6612]

I have taken the subscription to this channel. Can i get the link for the code

[@raoraman64]

Can you tell me difference between bridge and decorator pattern

[@stockgeeky9992]

good video

[@ConceptandCoding]

Thanks

[@stockgeeky9992]

@@ConceptandCoding can you make one video that summarizes behaviour patterns as well?

[@ConceptandCoding]

will do, 3 patterns left, will cover those first, then will club all behaviour in 1 video

[@elvishdadhaniya9953]

Hi, so in the flyweight example once we store body in map and assuming everytime i get it from the cache then memory used will be 31 * 2 = 62 kb only, right? or am i missing something here? @ConceptandCoding

[@ConceptandCoding]

Right. 62KB + for any extrinsic data

[@ayushgoyal773]

@@ConceptandCoding 62KB part will be allocated for each flyweight object that we are going to create. If there are only 3 variations in the intrinsic property, we will only need to create only 3 flyweight objects. Rest we will be using the same objects and just passing different params in a function.

[@ConceptandCoding]

@@ayushgoyal773 yes

[@dheerajkrgoyal]

What is the difference between bridge and strategy pattern?

[@argha5017]

Please create a video for all behavioral design patterns in single video. I couldnt find it.

[@ConceptandCoding]

yes i need to create that

[@abhishekpattnaik8531]

@24:19 , The client creates adaptor by using WeightMachineAdaptor wm = new WeightMachineAdaptor(new WeightMachineImpl()). Here client is also able to give the adaptee implementation. But client should not be able to use the adaptee, right? Can you help with this?

[@gunjanyadu865]

Could you please share the link of the notes of community section. I am not able to find it there

[@ConceptandCoding]

its there, pls check, i have double checked

[@rjarora]

Bhai, you should give some real-world examples. All these examples like Pizza, Shape etc are only in theory and won't be appreciated during interviews for senior roles.

[@ankush1681]

Sir by which month are we finishing java and will be starting with spring boot.

[@ConceptandCoding]

Collection is going on and after that Multithreading and unit tests are left after that I will start buddy . By which month, i can not say, if I get some free time, i will complete within a month if little busy then it might get little extend too

[@yelugulavenkatanagaprathap-k5u]

what is farmhouse object here ???

[@suryanshraghuvanshi9761]

bridge is similar to strategy design pattern isn't it?

[@ktprasanth007]

Bro when will u upload the remaining SD questions from the topic list that u have provided??

[@ConceptandCoding]

This month I will try to upload 2-3 HLD topocs

[@ktprasanth007]

@@ConceptandCoding But there are still some questions left from LLD right? What abt them?

[@ConceptandCoding]

@@ktprasanth007 covering them buddy, i need to switch between LLD, HLD and Java

[@ktprasanth007]

@@ConceptandCoding ohh okay! Thanks for ur content BTW ❤❤

[@akshatgoyal1246]

wrong arrow direction for interfaces and its implementations. Also it won't be a solid line, it will be a dotted arrow line.

[@harshitagarwal2682]

👍👍

[@billion_dreams__7787]

Bhaiya multithreading java me Kitta week ke bad aayega

[@ConceptandCoding]

I will finish the collections soon and then start multi threading

[@billion_dreams__7787]

@@ConceptandCoding how many week we can expect to start ??

[@yajatdhawan1865]

Hi bhaiya is this lld playlist complete?

[@ConceptandCoding]

No pls check the roadmap video, few videos are left

[@yajatdhawan1865]

@@ConceptandCoding ok and for freshers should we learn lld?

[@ConceptandCoding]

@@yajatdhawan1865 definitely yes

[@techmannih]

26 Lakhs ki salary mil rhi hai tas main, ek video bana do Tata imagination challenge par

[@ConceptandCoding]

Checking buddy

[@yourinstincts]

As part of Bridge Pattern example, Since all Fisth, Dog, Trees are implementing the same function of calling breatheImplementor.breatheProcess() why not keep this function inside LivingThings class itself?

[@rahulkhandelwal7034]

Factory design pattern is missing ig

[@ConceptandCoding]

its creational design pattern buddy

[@rahulkhandelwal7034]

@@ConceptandCoding oh yeah sorry 😐

[@sivaprasadk3384]

@@ConceptandCodingplease 🙏🏻provide this notes as a pdf Thank you 🙏🏻

[@kamalakantabehera3010]

Pizza decorator is not a pizza itself. So PizzaDecorator extending pizza doesn't sound correct