OnJava8-Examples/generics/SelfBoundingAndCovariantArguments.java

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2015-06-15 17:47:35 -07:00
//: generics/SelfBoundingAndCovariantArguments.java
// <20>2015 MindView LLC: see Copyright.txt
interface SelfBoundSetter<T extends SelfBoundSetter<T>> {
void set(T arg);
}
interface Setter extends SelfBoundSetter<Setter> {}
public class SelfBoundingAndCovariantArguments {
void testA(Setter s1, Setter s2, SelfBoundSetter sbs) {
s1.set(s2);
// s1.set(sbs); // Error:
// set(Setter) in SelfBoundSetter<Setter>
// cannot be applied to (SelfBoundSetter)
}
} ///:~