001/*
002 * JScience - Java(TM) Tools and Libraries for the Advancement of Sciences.
003 * Copyright (C) 2006 - JScience (http://jscience.org/)
004 * All rights reserved.
005 * 
006 * Permission to use, copy, modify, and distribute this software is
007 * freely granted, provided that this notice is preserved.
008 */
009package javax.measure.quantity;
010import javax.measure.unit.SI;
011import javax.measure.unit.Unit;
012
013/**
014 * This interface represents the number of elementary entities (molecules, for
015 * example) of a substance. The system unit for this quantity is "mol" (mole).
016 * 
017 * @author  <a href="mailto:jean-marie@dautelle.com">Jean-Marie Dautelle</a>
018 * @version 1.0, January 14, 2006
019 */
020public interface AmountOfSubstance extends Quantity {
021
022    /**
023     * Holds the SI unit (Système International d'Unités) for this quantity.
024     */
025    public final static Unit<AmountOfSubstance> UNIT = SI.MOLE;
026
027}