| Revision | 70 (tree) |
|---|---|
| Time | 2015-08-21 00:11:07 |
| Author | t_nakayama1971 |
(empty log message)
| @@ -1,172 +0,0 @@ | ||
| 1 | -package core.util.bean; | |
| 2 | - | |
| 3 | -import java.io.Serializable; | |
| 4 | -import java.util.Arrays; | |
| 5 | -import java.util.Iterator; | |
| 6 | -import java.util.NoSuchElementException; | |
| 7 | - | |
| 8 | -/** | |
| 9 | - * タプル | |
| 10 | - * | |
| 11 | - * @author Tadashi Nakayama | |
| 12 | - * @version 1.0.0 | |
| 13 | - * @param <T> ジェネリックス | |
| 14 | - */ | |
| 15 | -public final class Tuple<T> implements Iterable<T>, Serializable { | |
| 16 | - /** serialVersionUID */ | |
| 17 | - private static final long serialVersionUID = 5818916983288475733L; | |
| 18 | - | |
| 19 | - /** 値保持配列 */ | |
| 20 | - private final T[] value; | |
| 21 | - | |
| 22 | - /** | |
| 23 | - * コンストラクタ | |
| 24 | - * | |
| 25 | - * @param vals 値 | |
| 26 | - */ | |
| 27 | - @SafeVarargs | |
| 28 | - public Tuple(final T... vals) { | |
| 29 | - if (vals == null) { | |
| 30 | - throw new IllegalArgumentException(); | |
| 31 | - } | |
| 32 | - | |
| 33 | - this.value = Arrays.copyOf(vals, vals.length); | |
| 34 | - } | |
| 35 | - | |
| 36 | - /** | |
| 37 | - * 長さ取得 | |
| 38 | - * | |
| 39 | - * @return 長さ | |
| 40 | - */ | |
| 41 | - public int length() { | |
| 42 | - return this.value.length; | |
| 43 | - } | |
| 44 | - | |
| 45 | - /** | |
| 46 | - * 取得 | |
| 47 | - * | |
| 48 | - * @param loc 位置 | |
| 49 | - * @return 値 | |
| 50 | - */ | |
| 51 | - public T get(final int loc) { | |
| 52 | - if (loc < 0 || this.value.length <= loc) { | |
| 53 | - throw new ArrayIndexOutOfBoundsException(loc); | |
| 54 | - } | |
| 55 | - return this.value[loc]; | |
| 56 | - } | |
| 57 | - | |
| 58 | - /** | |
| 59 | - * @see java.lang.Object#toString() | |
| 60 | - */ | |
| 61 | - @Override | |
| 62 | - public String toString() { | |
| 63 | - return Arrays.toString(this.value); | |
| 64 | - } | |
| 65 | - | |
| 66 | - /** | |
| 67 | - * 配列化 | |
| 68 | - * | |
| 69 | - * @return 配列 | |
| 70 | - */ | |
| 71 | - public T[] toArray() { | |
| 72 | - return Arrays.copyOf(this.value, this.value.length); | |
| 73 | - } | |
| 74 | - | |
| 75 | - /** | |
| 76 | - * @see java.lang.Iterable#iterator() | |
| 77 | - */ | |
| 78 | - @Override | |
| 79 | - public Iterator<T> iterator() { | |
| 80 | - return new TupleIterator<>(this.value); | |
| 81 | - } | |
| 82 | - | |
| 83 | - /** | |
| 84 | - * 連結 | |
| 85 | - * | |
| 86 | - * @param <T> ジェネリックス | |
| 87 | - * @param val 値 | |
| 88 | - * @param tpl タプル | |
| 89 | - * @return 連結結果 | |
| 90 | - */ | |
| 91 | - public static <T> Tuple<T> cons(final T[] val, final Tuple<T> tpl) { | |
| 92 | - return cons(new Tuple<>(val), tpl); | |
| 93 | - } | |
| 94 | - | |
| 95 | - /** | |
| 96 | - * 連結 | |
| 97 | - * | |
| 98 | - * @param <T> ジェネリックス | |
| 99 | - * @param tpl タプル | |
| 100 | - * @param val 値 | |
| 101 | - * @return 連結結果 | |
| 102 | - */ | |
| 103 | - @SafeVarargs | |
| 104 | - public static <T> Tuple<T> cons(final Tuple<T> tpl, final T... val) { | |
| 105 | - return cons(tpl, new Tuple<>(val)); | |
| 106 | - } | |
| 107 | - | |
| 108 | - /** | |
| 109 | - * 連結 | |
| 110 | - * | |
| 111 | - * @param <T> ジェネリックス | |
| 112 | - * @param tpl1 タプル | |
| 113 | - * @param tpl2 タプル | |
| 114 | - * @return 連結結果 | |
| 115 | - */ | |
| 116 | - public static <T> Tuple<T> cons(final Tuple<T> tpl1, final Tuple<T> tpl2) { | |
| 117 | - T[] array = Arrays.copyOf(tpl1.value, tpl1.value.length + tpl2.value.length); | |
| 118 | - System.arraycopy(tpl2.value, 0, array, tpl1.length(), tpl2.length()); | |
| 119 | - return new Tuple<>(array); | |
| 120 | - } | |
| 121 | - | |
| 122 | - /** | |
| 123 | - * イテレータクラス | |
| 124 | - * | |
| 125 | - * @author Tadashi Nakayama | |
| 126 | - * @version 1.0.0 | |
| 127 | - * @param <E> ジェネリックス | |
| 128 | - */ | |
| 129 | - private static final class TupleIterator<E> implements Iterator<E> { | |
| 130 | - /** 現在位置 */ | |
| 131 | - private int loc = 0; | |
| 132 | - /** インスタンス */ | |
| 133 | - private final E[] value; | |
| 134 | - | |
| 135 | - /** | |
| 136 | - * コンストラクタ | |
| 137 | - * | |
| 138 | - * @param val インスタンス | |
| 139 | - */ | |
| 140 | - public TupleIterator(final E[] val) { | |
| 141 | - this.value = val; | |
| 142 | - } | |
| 143 | - | |
| 144 | - /** | |
| 145 | - * @see java.util.Iterator#hasNext() | |
| 146 | - */ | |
| 147 | - @Override | |
| 148 | - public boolean hasNext() { | |
| 149 | - return this.loc < this.value.length; | |
| 150 | - } | |
| 151 | - | |
| 152 | - /** | |
| 153 | - * @see java.util.Iterator#next() | |
| 154 | - */ | |
| 155 | - @Override | |
| 156 | - public E next() { | |
| 157 | - if (this.value.length <= this.loc) { | |
| 158 | - throw new NoSuchElementException(); | |
| 159 | - } | |
| 160 | - | |
| 161 | - return this.value[this.loc++]; | |
| 162 | - } | |
| 163 | - | |
| 164 | - /** | |
| 165 | - * @see java.util.Iterator#remove() | |
| 166 | - */ | |
| 167 | - @Override | |
| 168 | - public void remove() { | |
| 169 | - throw new UnsupportedOperationException(); | |
| 170 | - } | |
| 171 | - } | |
| 172 | -} |