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