Annotate Conditional Field Log For Free

Conditional Annotations in Spring BootOverview.@Conditional. As a Method Level Annotation. As a Type (Class) Level Annotation.Custom Condition. Combine Conditions with Any Match. Combine Conditions with All Match.Predefined Conditional Annotations. @ConditionalOnProperty. @ConditionalOnExpression.Conclusion.Jun 11, 2021

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.

Spring has introduced the @Conditional annotation that allows us to define custom conditions to apply to parts of our application context. Spring Boot builds on top of that and provides some pre-defined conditions so we don't have to implement them ourselves.

In short, the @ConditionalOnProperty enables bean registration only if an environment property is present and has a specific value. By default, the specified property must be defined and not equal to false.

To apply the OR operator, we need to create a custom condition extending the AnyNestedCondition class. Inside it, we need to create an empty static class for each condition and annotate it with a proper @Conditional implementation.

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.

@Profile annotation should be used for loading application configuration based on conditional logic.