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Asked: 2026-05-17T02:27:05+00:00

I have an abstract generic class. public abstract class FieldHandlerWithData<DataType extends Parcelable> extends FieldHandler

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I have an abstract generic class.

public abstract class FieldHandlerWithData<DataType extends Parcelable> 
    extends FieldHandler

Now I have an object c

Class<? extends FieldHandler> c = getHandlerClass(type);

and now I want to test if c inherits FieldHandlerWithData (directly or indirectly).
How to determine whether c inherits FieldHandlerWithData?

c.isAssignableFrom(FieldHandlerWithData.class) – returns false.

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1 Answer

  1. Editorial Team

    It’s the other way around – FieldHandlerWithData.class.isAssignableFrom(c)

    Determines if the class or interface represented by this Class object is either the same as, or is a superclass or superinterface of, the class or interface represented by the specified Class parameter

    So this class (the one on which the method is invoked) should be the superclass/superinterface

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