| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
| BooleanCollection |
|
| 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 | * A collection of <code>boolean</code> values. | |
| 21 | * | |
| 22 | * @see org.apache.commons.collections.primitives.adapters.BooleanCollectionCollection | |
| 23 | * @see org.apache.commons.collections.primitives.adapters.CollectionBooleanCollection | |
| 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 BooleanCollection | |
| 29 | { | |
| 30 | /** | |
| 31 | * Ensures that I contain the specified element (optional operation). | |
| 32 | * Returns <code>true</code> iff I changed as a result of this call. | |
| 33 | * <p/> | |
| 34 | * If a collection refuses to add the specified element for any reason | |
| 35 | * other than that it already contains the element, it <i>must</i> | |
| 36 | * throw an exception (rather than simply returning <tt>false</tt>). | |
| 37 | * This preserves the invariant that a collection always contains the | |
| 38 | * specified element after this call returns. | |
| 39 | * | |
| 40 | * @param element the value whose presence within me is to be ensured | |
| 41 | * @return <code>true</code> iff I changed as a result of this call | |
| 42 | * | |
| 43 | * @throws UnsupportedOperationException when this operation is not | |
| 44 | * supported | |
| 45 | * @throws IllegalArgumentException may be thrown if some aspect of the | |
| 46 | * specified element prevents it from being added to me | |
| 47 | */ | |
| 48 | boolean add(boolean element); | |
| 49 | ||
| 50 | /** | |
| 51 | * {@link #add Adds} all of the elements in the specified collection to | |
| 52 | * me (optional operation). | |
| 53 | * | |
| 54 | * @param c the collection of elements whose presence within me is to | |
| 55 | * be ensured | |
| 56 | * @return <code>true</code> iff I changed as a result of this call | |
| 57 | * | |
| 58 | * @throws UnsupportedOperationException when this operation is not | |
| 59 | * supported | |
| 60 | * @throws IllegalArgumentException may be thrown if some aspect of some | |
| 61 | * specified element prevents it from being added to me | |
| 62 | */ | |
| 63 | boolean addAll(BooleanCollection c); | |
| 64 | ||
| 65 | /** | |
| 66 | * Removes all my elements (optional operation). I will be | |
| 67 | * {@link #isEmpty empty} after this method successfully returns. | |
| 68 | * | |
| 69 | * @throws UnsupportedOperationException when this operation is not | |
| 70 | * supported | |
| 71 | */ | |
| 72 | void clear(); | |
| 73 | ||
| 74 | /** | |
| 75 | * Returns <code>true</code> iff I contain | |
| 76 | * the specified element. | |
| 77 | * | |
| 78 | * @param element the value whose presence within me is to be tested | |
| 79 | * @return <code>true</code> iff I contain the specified element | |
| 80 | */ | |
| 81 | boolean contains(boolean element); | |
| 82 | ||
| 83 | /** | |
| 84 | * Returns <code>true</code> iff I {@link #contains contain} | |
| 85 | * all of the elements in the given collection. | |
| 86 | * | |
| 87 | * @param c the collection of elements whose presence within me is to | |
| 88 | * be tested | |
| 89 | * @return <code>true</code> iff I contain the all the specified elements | |
| 90 | */ | |
| 91 | boolean containsAll(BooleanCollection c); | |
| 92 | ||
| 93 | /** | |
| 94 | * Returns <code>true</code> iff I contain no elements. | |
| 95 | * @return <code>true</code> iff I contain no elements. | |
| 96 | */ | |
| 97 | boolean isEmpty(); | |
| 98 | ||
| 99 | /** | |
| 100 | * Returns an {@link BooleanIterator iterator} over all my elements. | |
| 101 | * This base interface places no constraints on the order in which the | |
| 102 | * elements are returned by the returned iterator. | |
| 103 | * @return an {@link BooleanIterator iterator} over all my elements. | |
| 104 | */ | |
| 105 | BooleanIterator iterator(); | |
| 106 | ||
| 107 | /** | |
| 108 | * Removes all of my elements that are contained in the specified | |
| 109 | * collection (optional operation). The behavior of this method is | |
| 110 | * unspecified if the given collection is modified while this method | |
| 111 | * is executing. Note that this includes the case in which the given | |
| 112 | * collection is this collection, and it is not empty. | |
| 113 | * | |
| 114 | * @param c the collection of elements to remove | |
| 115 | * @return <code>true</code> iff I contained the at least one of the | |
| 116 | * specified elements, in other words, returns <code>true</code> | |
| 117 | * iff I changed as a result of this call | |
| 118 | * | |
| 119 | * @throws UnsupportedOperationException when this operation is not | |
| 120 | * supported | |
| 121 | */ | |
| 122 | boolean removeAll(BooleanCollection c); | |
| 123 | ||
| 124 | /** | |
| 125 | * Removes a single occurrence of the specified element (optional | |
| 126 | * operation). | |
| 127 | * | |
| 128 | * @param element the element to remove, if present | |
| 129 | * @return <code>true</code> iff I contained the specified element, | |
| 130 | * in other words, iff I changed as a result of this call | |
| 131 | * | |
| 132 | * @throws UnsupportedOperationException when this operation is not | |
| 133 | * supported | |
| 134 | */ | |
| 135 | boolean removeElement(boolean element); | |
| 136 | ||
| 137 | /** | |
| 138 | * Removes all of my elements that are <i>not</i> contained in the | |
| 139 | * specified collection (optional operation). (In other words, | |
| 140 | * retains <i>only</i> my elements that are contained in the specified | |
| 141 | * collection.) The behavior of this method is unspecified if the given | |
| 142 | * collection is modified while this method is executing. | |
| 143 | * | |
| 144 | * @param c the collection of elements to retain | |
| 145 | * @return <code>true</code> iff I changed as a result of this call | |
| 146 | * | |
| 147 | * @throws UnsupportedOperationException when this operation is not | |
| 148 | * supported | |
| 149 | */ | |
| 150 | boolean retainAll(BooleanCollection c); | |
| 151 | ||
| 152 | /** | |
| 153 | * Returns the number of elements I contain. | |
| 154 | * @return the number of elements I contain | |
| 155 | */ | |
| 156 | int size(); | |
| 157 | ||
| 158 | /** | |
| 159 | * Returns an array containing all of my elements. The length of the | |
| 160 | * returned array will be equal to my {@link #size size}. | |
| 161 | * <p/> | |
| 162 | * The returned array will be independent of me, so that callers may | |
| 163 | * modify that returned array without modifying this collection. | |
| 164 | * <p/> | |
| 165 | * When I guarantee the order in which elements are returned by an | |
| 166 | * {@link #iterator iterator}, the returned array will contain elements | |
| 167 | * in the same order. | |
| 168 | * | |
| 169 | * @return an array containing all my elements | |
| 170 | */ | |
| 171 | boolean[] toArray(); | |
| 172 | ||
| 173 | /** | |
| 174 | * Returns an array containing all of my elements, using the given array | |
| 175 | * if it is large enough. When the length of the given array is larger | |
| 176 | * than the number of elements I contain, values outside of my range will | |
| 177 | * be unchanged. | |
| 178 | * <p/> | |
| 179 | * The returned array will be independent of me, so that callers may modify | |
| 180 | * that returned array without modifying this collection. | |
| 181 | * <p/> | |
| 182 | * When I guarantee the order in which elements are returned by an {@link | |
| 183 | * #iterator iterator}, the returned array will contain elements in the | |
| 184 | * same order. | |
| 185 | * | |
| 186 | * @param a an array that may be used to contain the elements | |
| 187 | * @return an array containing all my elements | |
| 188 | */ | |
| 189 | boolean[] toArray(boolean[] a); | |
| 190 | } |