Annotate Conditional Field Paper For Free

Be it to disable some beans during tests or to react to a certain property in the runtime environment. Spring has introduced the @Conditional annotation that allows us to define custom conditions to apply to parts of our application context.

Annotation Interface Conditional Indicates that a component is only eligible for registration when all specified conditions match. A condition is any state that can be determined programmatically before the bean definition is due to be registered (see Condition for details).

@Profile annotation should be used for loading application configuration based on conditional logic. @Profile annotation is restricted to write conditional checking based on predefined properties. @Conditional annotation does not have this restriction.

It allows you to setup features based upon certain conditions like presence of a class in classparth or a JAR File which is how Spring Boot Auto-configuration works. The majority of @Conditional annotation users are, Conditions based on Bean definition or object present in the application.

It allows you to setup features based upon certain conditions like presence of a class in classparth or a JAR File which is how Spring Boot Auto-configuration works. The majority of @Conditional annotation users are, Conditions based on Bean definition or object present in the application.

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.

@Conditional vs @Profile The use of @Conditional and Condition is is similar to selecting different profiles using @Profile but is more flexible because the conditions are specified in Java code rather than using some pre defined property flag or some system property.

Interface ConfigurationCondition For example, a condition that checks if a bean has already been registered might choose to only be evaluated during the REGISTER_BEAN ConfigurationCondition. ConfigurationPhase .