1 /*
2 * Copyright 2022 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.buffer.api.internal;
17
18 import io.netty5.buffer.api.Drop;
19
20 import java.util.function.Function;
21
22 /**
23 * Utility class to capture or hold on to a drop instance.
24 *
25 * @param <T> The type argument to {@link Drop}.
26 */
27 public final class DropCaptor<T> implements Function<Drop<T>, Drop<T>> {
28 private Drop<T> drop;
29
30 public Drop<T> capture(Drop<T> drop) {
31 this.drop = drop;
32 return drop;
33 }
34
35 @Override
36 public Drop<T> apply(Drop<T> drop) {
37 return capture(drop);
38 }
39
40 public Drop<T> getDrop() {
41 return drop;
42 }
43 }