/* * Copyright 1998-2014 University Corporation for Atmospheric Research/Unidata * * Portions of this software were developed by the Unidata Program at the * University Corporation for Atmospheric Research. * * Access and use of this software shall impose the following obligations * and understandings on the user. The user is granted the right, without * any fee or cost, to use, copy, modify, alter, enhance and distribute * this software, and any derivative works thereof, and its supporting * documentation for any purpose whatsoever, provided that this entire * notice appears in all copies of the software, derivative works and * supporting documentation. Further, UCAR requests that the user credit * UCAR/Unidata in any publications that result from the use of this * software or in any product that includes this software. The names UCAR * and/or Unidata, however, may not be used in any advertising or publicity * to endorse or promote any products or commercial entity unless specific * written permission is obtained from UCAR/Unidata. The user also * understands that UCAR/Unidata is not obligated to provide the user with * any support, consulting, training or assistance of any kind with regard * to the use, operation and performance of this software nor to provide * the user with any updates, revisions, new versions or "bug fixes." * * THIS SOFTWARE IS PROVIDED BY UCAR/UNIDATA "AS IS" AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL UCAR/UNIDATA BE LIABLE FOR ANY SPECIAL, * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION * WITH THE ACCESS, USE OR PERFORMANCE OF THIS SOFTWARE. */ package ucar.units; /** * Interface for "base" entities like base units or base quantities. * * @author Steven R. Emmerson */ public interface Base { /** * Indicates if this base entity is dimensionless. * * @return <code>true</code> if and only if the base entity is dimensionless * (e.g. (BaseQuantity.SOLID_ANGLE</code>). */ public boolean isDimensionless(); /** * Returns the identifier for the base entity. * * @return The base entity's identifier (i.e. symbol or name). */ public String getID(); /** * Indicates if this base entity is semantically the same as another object. * * @param object * The other object. * @return <code>true</code> if and only if this base entity is semantically * the same as <code>object</code>. */ public boolean equals(Object object); }