Java Records Unleashed: Validation Best Practices

Published: 19 August 2024
on channel: Tales from the jar side

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Simplifying RESTful Web Service Constraints in Java

In this episode of 'Tales from the Jar Side,' Ken Kousen guides Java developers through the process of simplifying constraints when interacting with a RESTful web service. Using a text-to-speech service example, Ken demonstrates four steps to enforce input restrictions programmatically. He covers using Java records, defining constants and enums, utilizing compact constructors for validation and transformation, and applying Bean Validation annotations. The episode also includes practical coding examples and a final test to ensure proper service utilization. All code is available in the accompanying GitHub repository.

00:00 Why do you we need to do this?
02:40 A basic request class
03:30 Defining constants
03:56 Adding enums
06:13 Overloaded constructors
07:44 Compact constructors
09:16 Bean Validation
11:17 Adding the validation dependency
12:01 Bean Validation Annotations
13:50 Testing
15:14 What have we learned?
16:41 Generating audio from text

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