CODEWITHSUNDEEP
javaannotationsannotation-processing
Michael
Michael

Reputation: 33297

Get Super Class from TypeElement without Generic?

I have a class: 

public class StartPagePresenter extends AbstractPresenter<String> {
...
}

Using Java Annotation Processing I got the TypeElement of the class: 

TypeElement startPagePresenterType = // get the TypeElement of StartPagePresenter

Now I need to get the super class which is done with: 

startPagePresenterType.getSuperclass();

Then I tried to check if the super class has the correct type with: 

if ( !startPagePresenterType.getSuperclass().toString().equals(
     AbstractPresenter.class.getCanonicalName()) ) {
 ...
}

Here is the problem: AbstractPresenter.class.getCanonicalName() leads to: 

core.mvp.AbstractPresenter

and startPagePresenterType.getSuperclass().toString() leads to: 

core.mvp.AbstractPresenter<java.lang.String>

When you compare these Strings they are never equal although the super classes are the same.

How can I get the super class from startPagePresenterType.getSuperclass() without the generic block?

Upvotes: 4

Views: 1322

Answers (1)

Michael
Michael

Reputation: 33297

I found the answer: 

TypeMirror superClassTypeMirror = startPagePresenterType.getSuperclass();
TypeElement superClassTypeElement = 
            (TypeElement)((DeclaredType)superClassTypeMirror).asElement();

That's it! superClassTypeElementthen is the TypeElement of the super class.

Upvotes: 8

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