1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.maven.internal.impl;
20
21 import java.util.AbstractList;
22 import java.util.List;
23 import java.util.function.Function;
24
25 public class MappedList<U, V> extends AbstractList<U> {
26 private final List<V> list;
27 private final Function<V, U> mapper;
28
29 public MappedList(List<V> list, Function<V, U> mapper) {
30 this.list = list;
31 this.mapper = mapper;
32 }
33
34 @Override
35 public U get(int index) {
36 return mapper.apply(list.get(index));
37 }
38
39 @Override
40 public int size() {
41 return list.size();
42 }
43 }