| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
| IsWithinRange |
|
| 2.8333333333333335;2.833 |
| 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.functor.core.comparator; | |
| 18 | ||
| 19 | import java.io.Serializable; | |
| 20 | import org.apache.commons.functor.UnaryPredicate; | |
| 21 | ||
| 22 | /** | |
| 23 | * A {@link UnaryPredicate} that tests whether a {@link Comparable} object is | |
| 24 | * within a range. The range is defined in the constructor. | |
| 25 | * | |
| 26 | * @since 1.0 | |
| 27 | * @version $Revision: 1171154 $ $Date: 2011-09-15 17:58:38 +0200 (Thu, 15 Sep 2011) $ | |
| 28 | * @author Jason Horman (jason@jhorman.org) | |
| 29 | */ | |
| 30 | ||
| 31 | 0 | public class IsWithinRange<A extends Comparable<A>> implements UnaryPredicate<A>, Serializable { |
| 32 | /** | |
| 33 | * serialVersionUID declaration. | |
| 34 | */ | |
| 35 | private static final long serialVersionUID = -7584005207181667878L; | |
| 36 | ||
| 37 | /** Hashcode of the name of this Predicate. */ | |
| 38 | 2 | private static final int NAME_HASH_CODE = "IsWithinRange".hashCode(); |
| 39 | ||
| 40 | /** Base Hashcode. */ | |
| 41 | private static final int BASE_HASH_CODE = 29; | |
| 42 | ||
| 43 | /*************************************************** | |
| 44 | * Instance variables | |
| 45 | ***************************************************/ | |
| 46 | ||
| 47 | /** The minimum value of the range. */ | |
| 48 | private final A min; | |
| 49 | /** The maximum value of the range. */ | |
| 50 | private final A max; | |
| 51 | ||
| 52 | /*************************************************** | |
| 53 | * Constructors | |
| 54 | ***************************************************/ | |
| 55 | ||
| 56 | /** | |
| 57 | * Create a new IsWithinRange by passing in the range that will | |
| 58 | * be used in the {@link #test}. | |
| 59 | * @param min Comparable | |
| 60 | * @param max Comparable | |
| 61 | */ | |
| 62 | 24 | public IsWithinRange(A min, A max) { |
| 63 | 24 | if (min == null || max == null) { |
| 64 | 2 | throw new IllegalArgumentException("min and max must not be null"); |
| 65 | } | |
| 66 | 22 | if (min.compareTo(max) > 0) { |
| 67 | 2 | throw new IllegalArgumentException("min must be <= max"); |
| 68 | } | |
| 69 | 20 | this.min = min; |
| 70 | 20 | this.max = max; |
| 71 | 20 | } |
| 72 | ||
| 73 | /*************************************************** | |
| 74 | * Instance methods | |
| 75 | ***************************************************/ | |
| 76 | ||
| 77 | /** | |
| 78 | * {@inheritDoc} | |
| 79 | * Test if the passed in object is within the specified range. | |
| 80 | */ | |
| 81 | public final boolean test(A o) { | |
| 82 | 32 | return o.compareTo(min) >= 0 && o.compareTo(max) <= 0; |
| 83 | } | |
| 84 | ||
| 85 | /** | |
| 86 | * {@inheritDoc} | |
| 87 | */ | |
| 88 | public final boolean equals(Object o) { | |
| 89 | 16 | if (this == o) { |
| 90 | 2 | return true; |
| 91 | } | |
| 92 | 14 | if (!(o instanceof IsWithinRange<?>)) { |
| 93 | 2 | return false; |
| 94 | } | |
| 95 | 12 | final IsWithinRange<?> isWithinRange = (IsWithinRange<?>) o; |
| 96 | 12 | return max.equals(isWithinRange.max) && min.equals(isWithinRange.min); |
| 97 | } | |
| 98 | ||
| 99 | /** | |
| 100 | * {@inheritDoc} | |
| 101 | */ | |
| 102 | public int hashCode() { | |
| 103 | 14 | return BASE_HASH_CODE * min.hashCode() + max.hashCode() + NAME_HASH_CODE; |
| 104 | } | |
| 105 | ||
| 106 | /** | |
| 107 | * {@inheritDoc} | |
| 108 | */ | |
| 109 | public String toString() { | |
| 110 | 6 | return "IsWithinRange(" + min + ", " + max + ")"; |
| 111 | } | |
| 112 | ||
| 113 | /** | |
| 114 | * Obtain an IsWithinRange instance. | |
| 115 | * @param <A> | |
| 116 | * @param min A | |
| 117 | * @param max A | |
| 118 | * @return IsWithinRange<A> | |
| 119 | */ | |
| 120 | public static <A extends Comparable<A>> IsWithinRange<A> instance(A min, A max) { | |
| 121 | 2 | return new IsWithinRange<A>(min, max); |
| 122 | } | |
| 123 | } |