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Learning Spring Boot 2.0

You're reading from   Learning Spring Boot 2.0 Simplify the development of lightning fast applications based on microservices and reactive programming

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Product type Paperback
Published in Nov 2017
Publisher Packt
ISBN-13 9781786463784
Length 370 pages
Edition 2nd Edition
Languages
Tools
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Author (1):
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Greg L. Turnquist Greg L. Turnquist
Author Profile Icon Greg L. Turnquist
Greg L. Turnquist
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Table of Contents (11) Chapters Close

Preface 1. Quick Start with Java FREE CHAPTER 2. Reactive Web with Spring Boot 3. Reactive Data Access with Spring Boot 4. Testing with Spring Boot 5. Developer Tools for Spring Boot Apps 6. AMQP Messaging with Spring Boot 7. Microservices with Spring Boot 8. WebSockets with Spring Boot 9. Securing Your App with Spring Boot 10. Taking Your App to Production with Spring Boot

Solving a problem

In this day and age, why are we still writing queries like this:

    SELECT * 
    FROM PERSON 
    WHERE FIRST_NAME = %1

That type of query must be thirty years old! The ANSI spec for SQL was released in 1986, and its effects can be seen in countless languages.

So, is it any better to write something more like this:

    SELECT e 
    FROM Employee e 
    WHERE e.firstName = :name 

The last bit of code is JPA (Java Persistence API), based upon the open source Hibernate project (which has become JPA's reference implementation). Is this Java's improvement over writing pure SQL?

Maybe this fragment below is an enhancement?

    create 
      .select() 
      .from(EMPLOYEE) 
      .where(EMPLOYEE.FIRST_NAME.equal(name)) 
      .fetch() 

That last code snippet is jOOQ, and can help with code completion, but it seems that we are, basically, doing the same...

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