How to implement a Java stream?

Question

I want to implement a Stream.

I don\'t want to just use implements Stream, because I would have to implement a ton of met

Answer 1

Others have answered how to provide a general-purpose Stream implementation. Regarding your specific requirement, just do this:

class Foo {

    T t1, t2, t3;

    Foo(T t1, T t2, T t3) {
        this.t1 = t1;
        this.t2 = t2;
        this.t3 = t3;
    }

    Stream stream() {
        return Stream.of(t1, t2, t3);
    }
}