| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
| MutableObject |
|
| 2.142857142857143;2.143 |
| 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 | ||
| 18 | package org.apache.commons.lang3.mutable; | |
| 19 | ||
| 20 | import java.io.Serializable; | |
| 21 | ||
| 22 | /** | |
| 23 | * A mutable <code>Object</code> wrapper. | |
| 24 | * | |
| 25 | * @since 2.1 | |
| 26 | * @version $Id: MutableObject.java 1436770 2013-01-22 07:09:45Z ggregory $ | |
| 27 | */ | |
| 28 | public class MutableObject<T> implements Mutable<T>, Serializable { | |
| 29 | ||
| 30 | /** | |
| 31 | * Required for serialization support. | |
| 32 | * | |
| 33 | * @see java.io.Serializable | |
| 34 | */ | |
| 35 | private static final long serialVersionUID = 86241875189L; | |
| 36 | ||
| 37 | /** The mutable value. */ | |
| 38 | private T value; | |
| 39 | ||
| 40 | /** | |
| 41 | * Constructs a new MutableObject with the default value of <code>null</code>. | |
| 42 | */ | |
| 43 | public MutableObject() { | |
| 44 | 3 | super(); |
| 45 | 3 | } |
| 46 | ||
| 47 | /** | |
| 48 | * Constructs a new MutableObject with the specified value. | |
| 49 | * | |
| 50 | * @param value the initial value to store | |
| 51 | */ | |
| 52 | public MutableObject(final T value) { | |
| 53 | 31 | super(); |
| 54 | 31 | this.value = value; |
| 55 | 31 | } |
| 56 | ||
| 57 | //----------------------------------------------------------------------- | |
| 58 | /** | |
| 59 | * Gets the value. | |
| 60 | * | |
| 61 | * @return the value, may be null | |
| 62 | */ | |
| 63 | @Override | |
| 64 | public T getValue() { | |
| 65 | 9 | return this.value; |
| 66 | } | |
| 67 | ||
| 68 | /** | |
| 69 | * Sets the value. | |
| 70 | * | |
| 71 | * @param value the value to set | |
| 72 | */ | |
| 73 | @Override | |
| 74 | public void setValue(final T value) { | |
| 75 | 2 | this.value = value; |
| 76 | 2 | } |
| 77 | ||
| 78 | //----------------------------------------------------------------------- | |
| 79 | /** | |
| 80 | * <p> | |
| 81 | * Compares this object against the specified object. The result is <code>true</code> if and only if the argument | |
| 82 | * is not <code>null</code> and is a <code>MutableObject</code> object that contains the same <code>T</code> | |
| 83 | * value as this object. | |
| 84 | * </p> | |
| 85 | * | |
| 86 | * @param obj the object to compare with, <code>null</code> returns <code>false</code> | |
| 87 | * @return <code>true</code> if the objects are the same; | |
| 88 | * <code>true</code> if the objects have equivalent <code>value</code> fields; | |
| 89 | * <code>false</code> otherwise. | |
| 90 | */ | |
| 91 | @Override | |
| 92 | public boolean equals(final Object obj) { | |
| 93 | 12 | if (obj == null) { |
| 94 | 1 | return false; |
| 95 | } | |
| 96 | 11 | if (this == obj) { |
| 97 | 4 | return true; |
| 98 | } | |
| 99 | 7 | if (this.getClass() == obj.getClass()) { |
| 100 | 5 | final MutableObject<?> that = (MutableObject<?>) obj; |
| 101 | 5 | return this.value.equals(that.value); |
| 102 | } else { | |
| 103 | 2 | return false; |
| 104 | } | |
| 105 | } | |
| 106 | ||
| 107 | /** | |
| 108 | * Returns the value's hash code or <code>0</code> if the value is <code>null</code>. | |
| 109 | * | |
| 110 | * @return the value's hash code or <code>0</code> if the value is <code>null</code>. | |
| 111 | */ | |
| 112 | @Override | |
| 113 | public int hashCode() { | |
| 114 | 10 | return value == null ? 0 : value.hashCode(); |
| 115 | } | |
| 116 | ||
| 117 | //----------------------------------------------------------------------- | |
| 118 | /** | |
| 119 | * Returns the String value of this mutable. | |
| 120 | * | |
| 121 | * @return the mutable value as a string | |
| 122 | */ | |
| 123 | @Override | |
| 124 | public String toString() { | |
| 125 | 16 | return value == null ? "null" : value.toString(); |
| 126 | } | |
| 127 | ||
| 128 | } |