01 /*
02 * Java Genetic Algorithm Library (jenetics-1.6.0).
03 * Copyright (c) 2007-2014 Franz Wilhelmstötter
04 *
05 * Licensed under the Apache License, Version 2.0 (the "License");
06 * you may not use this file except in compliance with the License.
07 * You may obtain a copy of the License at
08 *
09 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 * Author:
18 * Franz Wilhelmstötter (franz.wilhelmstoetter@gmx.at)
19 */
20 package org.jenetics.util;
21
22 import static java.util.Objects.requireNonNull;
23
24 import java.util.AbstractList;
25 import java.util.RandomAccess;
26
27 /**
28 * @author <a href="mailto:franz.wilhelmstoetter@gmx.at">Franz Wilhelmstötter</a>
29 * @since 1.0
30 * @version 1.0 — <em>$Date: 2014-02-15 $</em>
31 */
32 class ArraySeqList<T> extends AbstractList<T>
33 implements RandomAccess
34 {
35 final ArraySeq<T> _array;
36
37 public ArraySeqList(final ArraySeq<T> array) {
38 _array = requireNonNull(array, "ArrayBase");
39 }
40
41 @Override
42 public T get(final int index) {
43 return _array.get(index);
44 }
45
46 @Override
47 public int size() {
48 return _array.length();
49 }
50
51 @Override
52 public int indexOf(final Object element) {
53 return _array.indexOf(element);
54 }
55
56 @Override
57 public boolean contains(final Object element) {
58 return indexOf(element) != -1;
59 }
60
61 @Override
62 public Object[] toArray() {
63 return _array.toArray();
64 }
65
66 @SuppressWarnings("unchecked")
67 @Override
68 public <E> E[] toArray(final E[] array) {
69 if (array.length < _array.length()) {
70 final E[] copy = (E[])java.lang.reflect.Array.newInstance(
71 array.getClass().getComponentType(), _array.length()
72 );
73 for (int i = 0; i < _array.length(); ++i) {
74 copy[i] = (E)_array.get(i);
75 }
76
77 return copy;
78 }
79
80 System.arraycopy(_array._array, _array._start, array, 0, array.length);
81 return array;
82 }
83
84 }
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