Locate PsiClass elements in project scope

IntelliJ Platform
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1

How do I locate all PsiElement(PsiClass) elements of classes that annotate @Component and implement or inherit from java.util.function.Consumer<org.springframework.messaging.Message<?>> within the project scope?

2

You probably need Java plugin APIs such as:

  • AnnotatedElementsSearch
  • ClassInheritorsSearch
  • DirectClassInheritorsSearch

And if you know exact FQN of a class and need its PsiClass then JavaPsiFacade.findClass should do it.

There are many usage examples on intellij-community sources in Java plugin