001 /* 002 * Created on Mar 30, 2009 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except 005 * in compliance with the License. You may obtain a copy of the License at 006 * 007 * http://www.apache.org/licenses/LICENSE-2.0 008 * 009 * Unless required by applicable law or agreed to in writing, software distributed under the License 010 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express 011 * or implied. See the License for the specific language governing permissions and limitations under 012 * the License. 013 * 014 * Copyright @2009 the original author or authors. 015 */ 016 package org.fest.assertions; 017 018 /** 019 * Understands a finite increment in a variable. 020 * @since 1.1 021 * 022 * @author Alex Ruiz 023 */ 024 public final class Delta { 025 026 /** 027 * Creates a new <code>{@link Delta}</code>. 028 * @param value the value of the delta. 029 * @return the created <code>Delta</code>. 030 */ 031 public static Delta delta(double value) { 032 return new Delta(value); 033 } 034 035 /** 036 * Creates a new <code>{@link Delta}</code>. 037 * @param value the value of the delta. 038 * @return the created <code>Delta</code>. 039 */ 040 public static Delta delta(float value) { 041 return new Delta(value); 042 } 043 044 private final Double value; 045 046 private Delta(double value) { 047 this.value = value; 048 } 049 050 /** 051 * Returns the value of this delta. 052 * @return the value of this delta. 053 * @deprecated use <code>{@link #doubleValue()}</code> instead. 054 */ 055 @Deprecated 056 public double value() { 057 return doubleValue(); 058 } 059 060 /** 061 * Returns the value of this delta as a <code>double</code>. 062 * @return the value of this delta as a <code>double</code>. 063 * @since 1.2 064 */ 065 public double doubleValue() { 066 return value.doubleValue(); 067 } 068 069 /** 070 * Returns the value of this delta as a <code>float</code>. 071 * @return the value of this delta as a <code>float</code>. 072 * @since 1.2 073 */ 074 public float floatValue() { 075 return value.floatValue(); 076 } 077 }