allow contravariant use of Subscriber

rkuhn · rkuhn · commit d76e5e4daa45 · 2014-09-02T10:13:25.000+02:00
fixes reactive-streams#104
diff --git a/api/src/main/java/org/reactivestreams/Publisher.java b/api/src/main/java/org/reactivestreams/Publisher.java
@@ -16,5 +16,5 @@ public interface Publisher<T> {
      * 
      * @param s the {@link Subscriber} that will consume signals from this {@link Publisher}
      */
-    public void subscribe(Subscriber<T> s);
+    public void subscribe(Subscriber<? super T> s);
 }

Original file line number	Diff line number	Diff line change
`@@ -16,5 +16,5 @@ public interface Publisher<T> {`
`16`	`16`	`*`
`17`	`17`	`* @param s the {@link Subscriber} that will consume signals from this {@link Publisher}`
`18`	`18`	`*/`
`19`		`- public void subscribe(Subscriber<T> s);`
	`19`	`+ public void subscribe(Subscriber<? super T> s);`
`20`	`20`	`}`