Pierre De Rop | 1152750 | 2016-02-18 21:07:16 +0000 | [diff] [blame^] | 1 | package org.apache.felix.dm.lambda.callbacks; |
| 2 | |
| 3 | import java.util.Map; |
| 4 | import java.util.Objects; |
| 5 | |
| 6 | /** |
| 7 | * Represents a callback(Service, Map) on an Object instance. |
| 8 | * |
| 9 | * <p> The type of the service passed in argument to the callback is defined by the "S" generic parameter. |
| 10 | * |
| 11 | * @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a> |
| 12 | */ |
| 13 | @FunctionalInterface |
| 14 | public interface InstanceCbServiceMap<S> { |
| 15 | /** |
| 16 | * Handles the given arguments. |
| 17 | * @param service a Service |
| 18 | * @param properties a Map |
| 19 | */ |
| 20 | void accept(S service, Map<String, Object> properties); |
| 21 | |
| 22 | default InstanceCbServiceMap<S> andThen(InstanceCbServiceMap<S> after) { |
| 23 | Objects.requireNonNull(after); |
| 24 | return (S service, Map<String, Object> properties) -> { |
| 25 | accept(service, properties); |
| 26 | after.accept(service, properties); |
| 27 | }; |
| 28 | } |
| 29 | } |