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# XMLBigDecimal.hpp

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    00001 /*
    00002  * The Apache Software License, Version 1.1
    00003  *
    00004  * Copyright (c) 2001 The Apache Software Foundation.  All rights
    00005  * reserved.
    00006  *
    00007  * Redistribution and use in source and binary forms, with or without
    00008  * modification, are permitted provided that the following conditions
    00009  * are met:
    00010  *
    00011  * 1. Redistributions of source code must retain the above copyright
    00012  *    notice, this list of conditions and the following disclaimer.
    00013  *
    00014  * 2. Redistributions in binary form must reproduce the above copyright
    00015  *    notice, this list of conditions and the following disclaimer in
    00016  *    the documentation and/or other materials provided with the
    00017  *    distribution.
    00018  *
    00019  * 3. The end-user documentation included with the redistribution,
    00020  *    if any, must include the following acknowledgment:
    00021  *       "This product includes software developed by the
    00022  *        Apache Software Foundation (http://www.apache.org/)."
    00023  *    Alternately, this acknowledgment may appear in the software itself,
    00024  *    if and wherever such third-party acknowledgments normally appear.
    00025  *
    00026  * 4. The names "Xerces" and "Apache Software Foundation" must
    00027  *    not be used to endorse or promote products derived from this
    00028  *    software without prior written permission. For written
    00029  *    permission, please contact apache\@apache.org.
    00030  *
    00031  * 5. Products derived from this software may not be called "Apache",
    00032  *    nor may "Apache" appear in their name, without prior written
    00033  *    permission of the Apache Software Foundation.
    00034  *
    00035  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
    00036  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
    00037  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
    00038  * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
    00039  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    00040  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    00041  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
    00042  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
    00043  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
    00044  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
    00045  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
    00046  * SUCH DAMAGE.
    00047  * ====================================================================
    00048  *
    00049  * This software consists of voluntary contributions made by many
    00050  * individuals on behalf of the Apache Software Foundation, and was
    00051  * originally based on software copyright (c) 2001, International
    00052  * Business Machines, Inc., http://www.ibm.com .  For more information
    00053  * on the Apache Software Foundation, please see
    00054  * <http://www.apache.org/>.
    00055  */
    00056
    00057 /*
    00058  * $Id: XMLBigDecimal.hpp,v 1.3 2002/08/13 22:11:23 peiyongz Exp $
    00059  */
    00060
    00061 #ifndef XML_BIGDECIMAL_HPP
    00062 #define XML_BIGDECIMAL_HPP
    00063
    00064 #include <xercesc/util/XercesDefs.hpp>
    00065 #include <xercesc/util/XMLNumber.hpp>
    00066 #include <xercesc/util/XMLBigInteger.hpp>
    00067
    00068 class  XMLBigDecimal : public XMLNumber
    00069 {
    00070 public:
    00071
    00081
    00082     XMLBigDecimal(const XMLCh* const strValue);
    00083
    00084     ~XMLBigDecimal();
    00085
    00086     XMLBigDecimal(const XMLBigDecimal& toCopy);
    00087
    00092     XMLBigDecimal(const XMLBigDecimal& toCopy, const int addExponent);
    00093
    00094     static void           parseBigDecimal(const XMLCh* const strValue
    00095                                         , XMLCh* const       retValue
    00096                                         , unsigned int&      scaleValue);
    00097
    00098     static int            compareValues(const XMLBigDecimal* const lValue
    00099                                       , const XMLBigDecimal* const rValue);
    00100
    00101     static void           matchScale(XMLBigDecimal* const lValue
    00102                                    , XMLBigDecimal* const rValue);
    00103
    00104
    00105     virtual XMLCh*        toString() const;
    00106
    00107     virtual int           getSign() const;
    00108
    00109     XMLBigInteger*        getValue() const;
    00110
    00111     unsigned int          getScale() const;
    00112
    00113     unsigned int          getTotalDigit() const;
    00114
    00115
    00116
    00127     bool operator==(const XMLBigDecimal& toCompare) const;
    00128
    00129 private:
    00130
    00131     void         reScale(unsigned int newValue);
    00132
    00133     // -----------------------------------------------------------------------
    00134     //  Private data members
    00135     //
    00136     //  fIntVal
    00137     //     the XMLBigInteger holding the value of this BigDecimal.
    00138     //
    00139     //  fScale
    00140     //     the number of digits to the right of the decimal point
    00141     //
    00142     //  fRawData
    00143     //     to preserve the original string used to construct this object,
    00144     //     needed for pattern matching.
    00145     //
    00146     // -----------------------------------------------------------------------
    00147
    00148     XMLBigInteger*   fIntVal;
    00149     unsigned int     fScale;
    00150     XMLCh*           fRawData;
    00151 };
    00152
    00153 inline XMLBigDecimal::~XMLBigDecimal()
    00154 {
    00155     delete fIntVal;
    00156     if (fRawData)
    00157         delete [] fRawData;
    00158 }
    00159
    00160 inline int XMLBigDecimal::getSign() const
    00161 {
    00162     return fIntVal->getSign();
    00163 }
    00164
    00165 inline XMLBigInteger* XMLBigDecimal::getValue() const
    00166 {
    00167     return fIntVal;
    00168 }
    00169
    00170 inline unsigned int XMLBigDecimal::getScale() const
    00171 {
    00172     return fScale;
    00173 }
    00174
    00175 inline unsigned int XMLBigDecimal::getTotalDigit() const
    00176 {
    00177     return fIntVal->getTotalDigit();
    00178 }
    00179
    00180 inline bool XMLBigDecimal::operator==(const XMLBigDecimal& toCompare) const
    00181 {
    00182     return ( XMLBigInteger::compareValues(this->fIntVal, toCompare.fIntVal) == 0 ? true : false);
    00183 }
    00184
    00185 #endif

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