| /* |
| * JScience - Java(TM) Tools and Libraries for the Advancement of Sciences. |
| * Copyright (C) 2006 - JScience (http://jscience.org/) |
| * All rights reserved. |
| * |
| * Permission to use, copy, modify, and distribute this software is |
| * freely granted, provided that this notice is preserved. |
| */ |
| package javax.measure.unit; |
| |
| import java.util.Set; |
| |
| /** |
| * <p> This class represents a system of units, it groups units together |
| * for historical or cultural reasons. Nothing prevents a unit from |
| * belonging to several system of units at the same time |
| * (for example an imperial system would have many of the units |
| * held by {@link NonSI}).</p> |
| * |
| * @author <a href="mailto:jean-marie@dautelle.com">Jean-Marie Dautelle</a> |
| * @version 4.2, August 26, 2007 |
| */ |
| public abstract class SystemOfUnits { |
| |
| /** |
| * Returns a read only view over the units defined in this system. |
| * |
| * @return the collection of units. |
| */ |
| public abstract Set<Unit<?>> getUnits(); |
| |
| } |
