How to check that an interface overrides methods in parent interface

[armandino]

First, thanks for such an awesome library!

I'm working on an API that allows method chaining and I have the following use case:

interface Base {
    Base baseOp();
}

interface Foo extends Base {
    @Override
    Foo baseOp(); // returns Foo instead of Base
    Foo fooOp();
}

interface Bar extends Base {
    @Override
    Bar baseOp(); // returns Bar instead of Base
    Bar barOp();
}

How can I verify that Foo and Bar override baseOp() with the specialised return type?

[hankem]

For now, you could define a custom check similar to the one that is currently being developed in #1040:

public boolean isOverridden(JavaMethod method) {
    return Stream.concat(method.getOwner().getAllRawSuperclasses().stream(), method.getOwner().getAllRawInterfaces().stream())
            .map(JavaClass::getAllMethods)
            .flatMap(Set<JavaMethod>::stream)
            .anyMatch(superMethod ->
                        superMethod.getName().equals(method.getName()) &&
                        superMethod.getParameterTypes().equals(method.getParameterTypes())
            );
}

[armandino]

@hankem, thank you. Will give it a try.