| package org.apache.felix.dm.lambda.callbacks; |
| |
| import java.util.Objects; |
| |
| import org.osgi.framework.ServiceReference; |
| |
| /** |
| * Represents a callback(Service, ServiceReference) on an Object instance. |
| * |
| * <p> The type of the service passed in argument to the callback is defined by the "S" generic parameter. |
| * |
| * @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a> |
| */ |
| @FunctionalInterface |
| public interface InstanceCbServiceRef<S> { |
| /** |
| * Handles the given arguments. |
| * @param ref a Service Reference |
| * @param service a Service |
| */ |
| void accept(S service, ServiceReference<S> ref); |
| |
| default InstanceCbServiceRef<S> andThen(InstanceCbServiceRef<S> after) { |
| Objects.requireNonNull(after); |
| return (S service, ServiceReference<S> ref) -> { |
| accept(service, ref); |
| after.accept(service, ref); |
| }; |
| } |
| } |