| package org.apache.felix.dm.lambda.callbacks; |
| |
| import java.util.Objects; |
| |
| import org.osgi.framework.ServiceReference; |
| |
| /** |
| * Represents a callback(ServiceReference) on an Object instance. |
| * |
| * @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a> |
| */ |
| @FunctionalInterface |
| public interface CbRef<S> { |
| /** |
| * Handles the given argument |
| * @param ref a service reference |
| */ |
| void accept(ServiceReference<S> ref); |
| |
| default CbRef<S> andThen(CbRef<S> after) { |
| Objects.requireNonNull(after); |
| return (ServiceReference<S> ref) -> { |
| after.accept(ref); |
| }; |
| } |
| } |