eVision

  Pattern: Saga  https://microservices.io/patterns/data/saga.html Pattern: Transactional outbox https://microservices.io/patterns/data/transactional-outbox.html Multi-Tenant Architecture https://www.gooddata.com/blog/multi-tenant-architecture/ CQRS https://medium.com/@jpssasadara1995/cqrs-pattern-49fa3fafc825 https://waytoeasylearn.com/learn/cqrs-pattern-performance/ The Catalog of Design Patterns https://refactoring.guru/design-patterns/catalog https://waytoeasylearn.com/learn/cqrs-pattern-performance/ SN :  https://www.se.rit.edu/~swen-383/resources/RefCardz/designpatterns.pdf          https://mcdonaldland.info/files/designpatterns/designpatternscard.pdf

SN :  https://drive.google.com/file/d/1qBOFXGed_4v01WX8wG73mMF0yeJ0Putu/view?usp=drive_link                          AWS LB & Route53 https://towardsaws.com/network-in-aws-route53-vpc-bbf18a2ab054#:~:text=Route%2053%20is%20used%20for,user's%20location%20or%20other%20criteria.                                                              AWS IAM https://awsfundamentals.com/blog/aws-iam-roles-terms-concepts-and-examples#heading-aws-identity-center-and-federation

  When to Use Immutable vs. Mutable Data Structures in Java Choosing between immutable and mutable data structures depends on the specific use case, performance considerations, and how the data will be used. 1. Immutable Data Structures Immutable data structures cannot be modified after creation. If you need to "modify" them, you create a new instance instead. When to Use Immutable Structures? ✅ Thread Safety → No race conditions or concurrent modification issues. ✅ Safe Sharing → Can be safely shared across multiple parts of the program. ✅ Predictability → No accidental modifications. ✅ Cache-Friendly → Can be safely cached without worrying about changes. Examples of Immutable Structures Immutable Records (Java 14+) javaCopyEditpublic record Person(String name, int age) {} public class Main {     public static void main(String[] args) {         Person person = new Person("Alice", 30);     ...

  Optimistic vs. Pessimistic Locking in Spring Boot & JPA https://medium.com/@jpssasadara1995/optimistic-vs-e21af7c31de3