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jeremybenn |
/* RoundingMode.java -- An Enum to replace BigDecimal rounding constants.
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Copyright (C) 1999, 2000, 2002, 2004, 2005 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package java.math;
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/**
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* An enum to specify rounding behaviour for numerical operations that may
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* discard precision.
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* @author Anthony Balkissoon abalkiss at redhat dot com
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*
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*/
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public enum RoundingMode
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{
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UP, DOWN, CEILING, FLOOR, HALF_UP, HALF_DOWN, HALF_EVEN, UNNECESSARY;
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/**
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* For compatability with Sun's JDK
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*/
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private static final long serialVersionUID = 432302042773881265L;
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/**
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* Returns the RoundingMode object corresponding to the legacy rounding modes
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* in BigDecimal.
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* @param rm the legacy rounding mode
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* @return the corresponding RoundingMode
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*/
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public static RoundingMode valueOf(int rm)
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{
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switch (rm)
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{
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case BigDecimal.ROUND_CEILING:
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return CEILING;
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case BigDecimal.ROUND_FLOOR:
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return FLOOR;
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case BigDecimal.ROUND_DOWN:
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return DOWN;
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case BigDecimal.ROUND_UP:
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return UP;
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case BigDecimal.ROUND_HALF_UP:
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return HALF_UP;
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case BigDecimal.ROUND_HALF_DOWN:
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return HALF_DOWN;
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case BigDecimal.ROUND_HALF_EVEN:
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return HALF_EVEN;
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case BigDecimal.ROUND_UNNECESSARY:
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return UNNECESSARY;
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default:
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throw new
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IllegalArgumentException("invalid argument: " + rm +
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". Argument should be one of the " +
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"rounding modes defined in BigDecimal.");
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}
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}
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}
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