#192 - Added linkTo(Class<?>, Method, Object...) to MethodLinkBuilderFactory.

The newly introduced method is needed to make sure the correct mappings are looked up if the method given is actually not declared on the class the method shall eventually be invoked on.

This is basically allowing to try to build links, similar to the dummy invocation mechanism but effectively avoiding the overhead of creating such invocation manually (as it would usually require reflection to be used).

src/main/java/org/springframework/hateoas/mvc/ControllerLinkBuilder.java

@@ -88,10 +88,24 @@ public class ControllerLinkBuilder extends LinkBuilderSupport<ControllerLinkBuil
 		return builder.slash(expandedComponents);
 	}
 
+	/*
+	 * @see org.springframework.hateoas.MethodLinkBuilderFactory#linkTo(Method, Object...)
+	 */
 	public static ControllerLinkBuilder linkTo(Method method, Object... parameters) {
+		return linkTo(method.getDeclaringClass(), method);
+	}
 
-		UriTemplate template = new UriTemplate(DISCOVERER.getMapping(method));
+	/*
+	 * @see org.springframework.hateoas.MethodLinkBuilderFactory#linkTo(Class<?>, Method, Object...)
+	 */
+	public static ControllerLinkBuilder linkTo(Class<?> controller, Method method, Object... parameters) {
+
+		Assert.notNull(controller, "Controller type must not be null!");
+		Assert.notNull(method, "Method must not be null!");
+
+		UriTemplate template = new UriTemplate(DISCOVERER.getMapping(controller, method));
 		URI uri = template.expand(parameters);
+
 		return new ControllerLinkBuilder(getBuilder()).slash(uri);
 	}
 

src/main/java/org/springframework/hateoas/mvc/ControllerLinkBuilderFactory.java

@@ -90,6 +90,15 @@ public class ControllerLinkBuilderFactory implements MethodLinkBuilderFactory<Co
 		return ControllerLinkBuilder.linkTo(controller, parameters);
 	}
 
+	/* 
+	 * (non-Javadoc)
+	 * @see org.springframework.hateoas.MethodLinkBuilderFactory#linkTo(java.lang.Class, java.lang.reflect.Method, java.lang.Object[])
+	 */
+	@Override
+	public ControllerLinkBuilder linkTo(Class<?> controller, Method method, Object... parameters) {
+		return ControllerLinkBuilder.linkTo(controller, method, parameters);
+	}
+
 	/* 
 	 * (non-Javadoc)
 	 * @see org.springframework.hateoas.MethodLinkBuilderFactory#linkTo(java.lang.Object)