| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
| BooleanList |
|
| 1.0;1 |
| 1 | /* | |
| 2 | * Licensed to the Apache Software Foundation (ASF) under one or more | |
| 3 | * contributor license agreements. See the NOTICE file distributed with | |
| 4 | * this work for additional information regarding copyright ownership. | |
| 5 | * The ASF licenses this file to You under the Apache License, Version 2.0 | |
| 6 | * (the "License"); you may not use this file except in compliance with | |
| 7 | * the License. You may obtain a copy of the License at | |
| 8 | * | |
| 9 | * 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 | package org.apache.commons.collections.primitives; | |
| 18 | ||
| 19 | /** | |
| 20 | * An ordered collection of <code>byte</code> values. | |
| 21 | * | |
| 22 | * @see org.apache.commons.collections.primitives.adapters.BooleanListList | |
| 23 | * @see org.apache.commons.collections.primitives.adapters.BooleanByteList | |
| 24 | * | |
| 25 | * @since Commons Primitives 1.1 | |
| 26 | * @version $Revision: 480460 $ $Date: 2006-11-29 03:14:21 -0500 (Wed, 29 Nov 2006) $ | |
| 27 | */ | |
| 28 | public interface BooleanList extends BooleanCollection { | |
| 29 | /** | |
| 30 | * Appends the specified element to the end of me (optional operation). | |
| 31 | * Returns <code>true</code> iff I changed as a result of this call. | |
| 32 | * <p/> | |
| 33 | * If a collection refuses to add the specified element for any reason | |
| 34 | * other than that it already contains the element, it <i>must</i> | |
| 35 | * throw an exception (rather than simply returning <tt>false</tt>). | |
| 36 | * This preserves the invariant that a collection always contains the | |
| 37 | * specified element after this call returns. | |
| 38 | * | |
| 39 | * @param element the value whose presence within me is to be ensured | |
| 40 | * @return <code>true</code> iff I changed as a result of this call | |
| 41 | * | |
| 42 | * @throws UnsupportedOperationException when this operation is not | |
| 43 | * supported | |
| 44 | * @throws IllegalArgumentException may be thrown if some aspect of the | |
| 45 | * specified element prevents it from being added to me | |
| 46 | */ | |
| 47 | boolean add(boolean element); | |
| 48 | ||
| 49 | /** | |
| 50 | * Inserts the specified element at the specified position (optional | |
| 51 | * operation). Shifts the element currently at that position (if any) | |
| 52 | * and any subsequent elements to the right, increasing their indices. | |
| 53 | * | |
| 54 | * @param index the index at which to insert the element | |
| 55 | * @param element the value to insert | |
| 56 | * | |
| 57 | * @throws UnsupportedOperationException when this operation is not | |
| 58 | * supported | |
| 59 | * @throws IllegalArgumentException if some aspect of the specified element | |
| 60 | * prevents it from being added to me | |
| 61 | * @throws IndexOutOfBoundsException if the specified index is out of range | |
| 62 | */ | |
| 63 | void add(int index, boolean element); | |
| 64 | ||
| 65 | /** | |
| 66 | * Inserts all of the elements in the specified collection into me, | |
| 67 | * at the specified position (optional operation). Shifts the | |
| 68 | * element currently at that position (if any) and any subsequent | |
| 69 | * elements to the right, increasing their indices. The new elements | |
| 70 | * will appear in the order that they are returned by the given | |
| 71 | * collection's {@link BooleanCollection#iterator iterator}. | |
| 72 | * | |
| 73 | * @param index the index at which to insert the first element from | |
| 74 | * the specified collection | |
| 75 | * @param collection the {@link BooleanCollection ByteCollection} of | |
| 76 | * elements to add | |
| 77 | * @return <code>true</code> iff I changed as a result of this call | |
| 78 | * | |
| 79 | * @throws UnsupportedOperationException when this operation is not | |
| 80 | * supported | |
| 81 | * @throws IndexOutOfBoundsException if the specified index is out of range | |
| 82 | */ | |
| 83 | boolean addAll(int index, BooleanCollection collection); | |
| 84 | ||
| 85 | /** | |
| 86 | * Returns <code>true</code> iff <i>that</i> is an <code>BooleanList</code> | |
| 87 | * that contains the same elements in the same order as me. | |
| 88 | * In other words, returns <code>true</code> iff <i>that</i> is | |
| 89 | * a <code>BooleanList</code> that has the same {@link #size() size} as me, | |
| 90 | * and for which the elements returned by its | |
| 91 | * {@link BooleanList#iterator iterator} are equal (<code>==</code>) to | |
| 92 | * the corresponding elements within me. | |
| 93 | * (This contract ensures that this method works properly across | |
| 94 | * different implementations of the <code>BooleanList</code> interface.) | |
| 95 | * | |
| 96 | * @param that the object to compare to me | |
| 97 | * @return <code>true</code> iff <i>that</i> is an <code>BooleanList</code> | |
| 98 | * that contains the same elements in the same order as me | |
| 99 | */ | |
| 100 | boolean equals(Object that); | |
| 101 | ||
| 102 | /** | |
| 103 | * Returns the value of the element at the specified position | |
| 104 | * within me. | |
| 105 | * | |
| 106 | * @param index the index of the element to return | |
| 107 | * @return the value of the element at the specified position | |
| 108 | * @throws IndexOutOfBoundsException if the specified index is out of range | |
| 109 | */ | |
| 110 | boolean get(int index); | |
| 111 | ||
| 112 | /** | |
| 113 | * @todo figure something out for this | |
| 114 | * Returns my hash code. | |
| 115 | * <p /> | |
| 116 | * The hash code of an <code>BooleanList</code> is defined to be the | |
| 117 | * result of the following calculation: | |
| 118 | * <pre> int hash = 1; | |
| 119 | * for(BooleanIterator iter = iterator(); iter.hasNext(); ) { | |
| 120 | * boolean value = iter.next(); | |
| 121 | * hash = 31*hash + (int)(value ^ (value >>> 32)); | |
| 122 | * }</pre> | |
| 123 | * <p /> | |
| 124 | * This contract ensures that this method is consistent with | |
| 125 | * {@link #equals equals} and with the | |
| 126 | * {@link java.util.List#hashCode hashCode} | |
| 127 | * method of a {@link java.util.List List} of {@link Boolean}s. | |
| 128 | * | |
| 129 | * @return my hash code | |
| 130 | */ | |
| 131 | int hashCode(); | |
| 132 | ||
| 133 | /** | |
| 134 | * Returns the index of the first occurrence of the specified element | |
| 135 | * within me, or <code>-1</code> if I do not contain the element. | |
| 136 | * | |
| 137 | * @param element the element to search for | |
| 138 | * @return the smallest index of an element matching the specified value, | |
| 139 | * or <code>-1</code> if no such matching element can be found | |
| 140 | */ | |
| 141 | int indexOf(boolean element); | |
| 142 | ||
| 143 | /** | |
| 144 | * Returns an {@link BooleanIterator iterator} over all my elements, | |
| 145 | * in the appropriate sequence. | |
| 146 | * @return an {@link BooleanIterator iterator} over all my elements. | |
| 147 | */ | |
| 148 | BooleanIterator iterator(); | |
| 149 | ||
| 150 | /** | |
| 151 | * Returns the index of the last occurrence of the specified element | |
| 152 | * within me, or -1 if I do not contain the element. | |
| 153 | * | |
| 154 | * @param element the element to search for | |
| 155 | * @return the largest index of an element matching the specified value, | |
| 156 | * or <code>-1</code> if no such matching element can be found | |
| 157 | */ | |
| 158 | int lastIndexOf(boolean element); | |
| 159 | ||
| 160 | /** | |
| 161 | * Returns a {@link BooleanListIterator bidirectional iterator} over | |
| 162 | * all my elements, in the appropriate sequence. | |
| 163 | */ | |
| 164 | BooleanListIterator listIterator(); | |
| 165 | ||
| 166 | /** | |
| 167 | * Returns a {@link BooleanListIterator bidirectional iterator} over all | |
| 168 | * my elements, in the appropriate sequence, starting at the specified | |
| 169 | * position. The specified <i>index</i> indicates the first element that | |
| 170 | * would be returned by an initial call to the {@link | |
| 171 | * BooleanListIterator#next next} method. An initial call to the {@link | |
| 172 | * BooleanListIterator#previous previous} method would return the element | |
| 173 | * with the specified <i>index</i> minus one. | |
| 174 | * | |
| 175 | * @throws IndexOutOfBoundsException if the specified index is out of range | |
| 176 | */ | |
| 177 | BooleanListIterator listIterator(int index); | |
| 178 | ||
| 179 | /** | |
| 180 | * Removes the element at the specified position in | |
| 181 | * (optional operation). Any subsequent elements | |
| 182 | * are shifted to the left, subtracting one from their | |
| 183 | * indices. Returns the element that was removed. | |
| 184 | * | |
| 185 | * @param index the index of the element to remove | |
| 186 | * @return the value of the element that was removed | |
| 187 | * | |
| 188 | * @throws UnsupportedOperationException when this operation is not | |
| 189 | * supported | |
| 190 | * @throws IndexOutOfBoundsException if the specified index is out of range | |
| 191 | */ | |
| 192 | boolean removeElementAt(int index); | |
| 193 | ||
| 194 | /** | |
| 195 | * Replaces the element at the specified position in me with the specified | |
| 196 | * element (optional operation). | |
| 197 | * | |
| 198 | * @param index the index of the element to change | |
| 199 | * @param element the value to be stored at the specified position | |
| 200 | * @return the value previously stored at the specified position | |
| 201 | * | |
| 202 | * @throws UnsupportedOperationException when this operation is not | |
| 203 | * supported | |
| 204 | * @throws IndexOutOfBoundsException if the specified index is out of range | |
| 205 | */ | |
| 206 | boolean set(int index, boolean element); | |
| 207 | ||
| 208 | /** | |
| 209 | * Returns a view of the elements within me between the specified | |
| 210 | * <i>fromIndex</i>, inclusive, and <i>toIndex</i>, exclusive. The | |
| 211 | * returned <code>BooleanList</code> is backed by me, so that any changes | |
| 212 | * in the returned list are reflected in me, and vice-versa. The returned | |
| 213 | * list supports all of the optional operations that I support. | |
| 214 | * <p/> | |
| 215 | * Note that when <code><i>fromIndex</i> == <i>toIndex</i></code>, the | |
| 216 | * returned list is initially empty, and when <code><i>fromIndex</i> == 0 | |
| 217 | * && <i>toIndex</i> == {@link #size() size()}</code> the returned list is | |
| 218 | * my "improper" sublist, containing all my elements. | |
| 219 | * <p/> | |
| 220 | * The semantics of the returned list become undefined if I am structurally | |
| 221 | * modified in any way other than via the returned list. | |
| 222 | * | |
| 223 | * @param fromIndex the smallest index (inclusive) in me that appears in | |
| 224 | * the returned list | |
| 225 | * @param toIndex the largest index (exclusive) in me that appears in the | |
| 226 | * returned list | |
| 227 | * @return a view of this list from <i>fromIndex</i> (inclusive) to | |
| 228 | * <i>toIndex</i> (exclusive) | |
| 229 | * | |
| 230 | * @throws IndexOutOfBoundsException if either specified index is out of range | |
| 231 | */ | |
| 232 | BooleanList subList(int fromIndex, int toIndex); | |
| 233 | ||
| 234 | } |