How to create custom @Conditional Annotations in Spring Boot with examples

In this tutorial, we’ll take a look at the @Conditional annotation. It’s used to indicate whether a given component is eligible for registration based on a defined condition.

How it is useful for us?

Similar to how Spring Boot magically loads default configuration, we also sometime want to load beans and modules into Spring application context based on custom conditions. We can now define and apply these custom conditions using @Conditional annotation.

Creating a custom @Conditional annotation in Spring can provide fine-grained control over how beans are conditionally loaded in your configuration, enabling advanced configuration setups that are specific to your application’s needs. Spring provides a @Conditional annotation, which allows you to specify conditions for when a bean should be created or not. However, you may want to create your own custom conditions for specific use cases, such as checking system properties, environment variables, or other business-specific logic.

Here’s how you can create custom @Conditional annotations:

1. Create a Custom Condition

First, you need to create a class that implements Condition from…