Spring Boot @ConditionalOnBean Annotation Example
In this section we will learn about @ConditionalOnBean Annotation. The @ConditionalOnBean annotation let a bean be loaded based on the presence of specific bean inside Spring container. The @ConditionalOnBean annotation may be used on any class annotated with @Component , @Service & @Repository or on methods annotated with @Bean . 1. Using @ConditionalOnBean on @Bean method For example, @ConditionalOnBean (name = "emailNotificationProvider" ) , when the Bean of name "emailNotificationProvider" exists in the container, the bean emailNotification will be loaded. @Bean ( "emailNotification" ) @ConditionalOnBean (name = "emailNotificationProvider" ) public EmailNotificationService emailNotificationService () { return new EmailNotificationService(); } 2. Using @ConditionalOnBean on @Service class For example, @ConditionalOnBean (name = "smsNotificationProvider" ) , when the Bean of name "smsNotificationProvi