001/* 002 * Units of Measurement Implementation for Java SE 003 * Copyright (c) 2005-2017, Jean-Marie Dautelle, Werner Keil, V2COM. 004 * 005 * All rights reserved. 006 * 007 * Redistribution and use in source and binary forms, with or without modification, 008 * are permitted provided that the following conditions are met: 009 * 010 * 1. Redistributions of source code must retain the above copyright notice, 011 * this list of conditions and the following disclaimer. 012 * 013 * 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions 014 * and the following disclaimer in the documentation and/or other materials provided with the distribution. 015 * 016 * 3. Neither the name of JSR-363 nor the names of its contributors may be used to endorse or promote products 017 * derived from this software without specific prior written permission. 018 * 019 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 020 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 021 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 022 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE 023 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 024 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 025 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 026 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 027 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 028 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 029 */ 030package tec.uom.se.function; 031 032import javax.measure.Quantity; 033import javax.measure.Unit; 034 035/** 036 * Represents an operation to convert values. 037 * <p> 038 * This is a <a href= "http://docs.oracle.com/javase/8/docs/api/java/util/function/package-summary.html#package.description" >functional interface</a> 039 * whose functional method is {@link #to()}. 040 * 041 * @author <a href="mailto:units@catmedia.us">Werner Keil</a> 042 * @version 1.0, 2016-10-11 043 * @param <Q> 044 * The type to convert to. 045 * @see <a href="http://en.wikipedia.org/wiki/Data_conversion">Wikipedia: Data Conversion</a> 046 * @since 1.0 047 */ 048@FunctionalInterface 049public interface QuantityConverter<Q extends Quantity<Q>> { 050 051 /** 052 * Returns a quantity converted into another unit. 053 * 054 * @param type 055 * @return the converted result. 056 */ 057 Quantity<Q> to(Unit<Q> type); 058}