nowshad hossain

software engineer. #java #spring , some #react, some #redux.

[Maciej Walkowiak 🍃 @maciejwalkowiak]

@JavaCodeDaily @david_syer @javarevisited @starbuxman @springcentral @myfear @mkheck @saturnism @odrotbohm @andreasevers Extra note - after Spring 4.3 there is no need to use Autowired if class has a single constructor. Non-required beans can be inject wrapped in Java 8 Optional and thats my personal preference

[nowshad hossain @nowshad123]

Now you don’t need to use @autowire. I used @AllArgsConstructor for setting bean at constructor #spring #ioc #bean

[nowshad hossain @nowshad123]

To load lazy relation:
For collection: model.collection.size()
For entity:
Hibernate.initialize(model.anotherLazyObject)
#hibernate #hibernatePerformance

[nowshad hossain @nowshad123]

spring.jpa.open-in-view make it false, by default it is true which is an antipattern. #hibernate #spring #antipattern

[nowshad hossain @nowshad123]

N+1 problem, solve by join fetch. #hibernate

[nowshad hossain @nowshad123]

du -hs folderName
Check folder size
#linux

[nowshad hossain @nowshad123]

Checking out #Flutter and #vaadin

[nowshad hossain @nowshad123]

You can’t pass component in props. If you want to it is like High order component. #reactjs

[nowshad hossain @nowshad123]

We want a Bangladesh where the rights of garment workers are prioritized over the profits of global brands 🇧🇩
@SWC2020
#StartupWorldCup
#TEEKTAKA

[nowshad hossain @nowshad123]

Storm is for real-time big data analytics while hadoop and spark are for batch mode #storm #Hadoop #BigData

[nowshad hossain @nowshad123]

Hadoop is persistence storage

[nowshad hossain @nowshad123]

#howto Live reload when static resource changes in boot using gradle

add spring-boot-devtools and

bootRun {
sourceResources sourceSets.main
}

#springboot #gradle

[nowshad hossain @nowshad123]

Chef and puppet are old. Ansible and salt are new

[nowshad hossain @nowshad123]

Prevent failing test and lower code coverage being pushed to master by adding pre-receive git hooks.

[nowshad hossain @nowshad123]

Galera cluster is for replication. It is bit different than traditional mysql clustering. Galera allows write to be made in any node, this is how it eliminates lag between server and client.

[nowshad hossain @nowshad123]

comparing twitter with facebook