1 /*
2 * Copyright 2015 The Netty Project
3 *
4 * The Netty Project licenses this file to you under the Apache License,
5 * version 2.0 (the "License"); you may not use this file except in compliance
6 * with the License. You may obtain a copy of the License at:
7 *
8 * https://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13 * License for the specific language governing permissions and limitations
14 * under the License.
15 */
16 package io.netty5.util;
17
18 import io.netty5.util.concurrent.Future;
19 import io.netty5.util.concurrent.Promise;
20
21 public interface AsyncMapping<IN, OUT> {
22
23 /**
24 * Returns the {@link Future} that will provide the result of the mapping. The given {@link Promise} will
25 * be fulfilled when the result is available.
26 */
27 Future<OUT> map(IN input, Promise<OUT> promise);
28 }