Knowledge Factory

1. What does JPA stand for? Java Persistence API 2. What's the difference between JPA and Spring Data JPA? JPA is a specification that standardizes the way Java Objects are mapped to a relational database system. Being just a specification, JPA consists of a set of interfaces, like EntityManagerFactory, EntityManager, and annotations that avail you to map a Java entity object to a database table. There are several JPA providers, like Hibernate, EclipseLink, or Open JPA which you can utilize. Spring Data JPA is not an implementation or JPA provider, it's just an abstraction used to significantly minimize the quantity of boilerplate code required to implement data access layers for various persistence stores. 3. What Is the Difference Between Hibernate and Spring Data JPA? Hibernate is a JPA implementation, while Spring Data JPA is a JPA Data Access Abstraction. Spring Data offers a solution to GenericDao custom implementations. It can withal engender JPA queries on your behalf t

More Java interview questions and answers... Spring Boot actuator interview questions and answers Spring Webflux Interview Questions and Answers Spring Core - Interview Questions Top Spring Cloud Interview Questions Spring Security Interview Questions Spring MVC - Interview Questions Spring Webflux Interview Questions Top Spring Boot Interview Questions Spring Data JPA Interview Questions and Answers Top Mockito Interview Questions and Answers Java Collections Interview Questions Java Stream API Interview Questions and Answers - Frequently asked Quarkus - Interview questions and answers   Spring Interview questions and answers What is Spring Security? Spring Security is a powerful and highly customizable Java web framework that focuses on providing authentication, authorization, and protection against common attacks. "Authentication" is the process of establishing a user, also known as the principle ."Authorization" refers to the process of deciding whether a princi

More Spring WebFlux related Topics, Building Reactive Rest APIs using Spring Boot, WebFlux, and Reactive MongoDB Building Reactive CRUD APIs Using Spring WebFlux & R2DBC Spring Boot - WebFlux - Video Streaming example 1. What is Reactive Programming? Reactive programming is a programming paradigm that deals with asynchronous data streams and the specific propagation of change, which means it implements modifications to the execution environment in a certain order. The primary benefits of reactive programming are: Incremented utilization of computing resources on multicore and multi-CPU hardware Incremented performance by truncating serialization 2. What is Spring Web flux ? Spring WebFlux is Spring's reactive-stack web framework, and it's an alternative to Spring MVC. Spring WebFlux is a web framework that’s built on top of Project Reactor, to give you asynchronous I/O, and sanction our application to perform better. Reactive web programming is great for applications that h