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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,
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    00041  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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    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 1.6 2003/02/02 23:54:43 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 XERCES_CPP_NAMESPACE_BEGIN
    00069
    00070 class  XMLBigDecimal : public XMLNumber
    00071 {
    00072 public:
    00073
    00084     XMLBigDecimal(const XMLCh* const strValue);
    00085
    00086     ~XMLBigDecimal();
    00087
    00088     XMLBigDecimal(const XMLBigDecimal& toCopy);
    00089
    00094     XMLBigDecimal(const XMLBigDecimal& toCopy, const int addExponent);
    00095
    00096     static void           parseBigDecimal(const XMLCh* const strValue
    00097                                         , XMLCh* const       retValue
    00098                                         , unsigned int&      scaleValue);
    00099
    00100     static int            compareValues(const XMLBigDecimal* const lValue
    00101                                       , const XMLBigDecimal* const rValue);
    00102
    00103     static void           matchScale(XMLBigDecimal* const lValue
    00104                                    , XMLBigDecimal* const rValue);
    00105
    00106
    00107     virtual XMLCh*        toString() const;
    00108
    00109     virtual XMLCh*        getRawData() const;
    00110
    00111     virtual const XMLCh*  getFormattedString() const;
    00112
    00113     virtual int           getSign() const;
    00114
    00115     XMLBigInteger*        getValue() const;
    00116
    00117     unsigned int          getScale() const;
    00118
    00119     unsigned int          getTotalDigit() const;
    00120
    00121
    00122
    00133     bool operator==(const XMLBigDecimal& toCompare) const;
    00134
    00135 private:
    00136
    00137     void         reScale(unsigned int newValue);
    00138
    00139     // -----------------------------------------------------------------------
    00140     //  Private data members
    00141     //
    00142     //  fIntVal
    00143     //     the XMLBigInteger holding the value of this BigDecimal.
    00144     //
    00145     //  fScale
    00146     //     the number of digits to the right of the decimal point
    00147     //
    00148     //  fRawData
    00149     //     to preserve the original string used to construct this object,
    00150     //     needed for pattern matching.
    00151     //
    00152     // -----------------------------------------------------------------------
    00153
    00154     XMLBigInteger*   fIntVal;
    00155     unsigned int     fScale;
    00156     XMLCh*           fRawData;
    00157 };
    00158
    00159 inline XMLBigDecimal::~XMLBigDecimal()
    00160 {
    00161     delete fIntVal;
    00162     if (fRawData)
    00163         delete [] fRawData;
    00164 }
    00165
    00166 inline int XMLBigDecimal::getSign() const
    00167 {
    00168     return fIntVal->getSign();
    00169 }
    00170
    00171 inline XMLBigInteger* XMLBigDecimal::getValue() const
    00172 {
    00173     return fIntVal;
    00174 }
    00175
    00176 inline unsigned int XMLBigDecimal::getScale() const
    00177 {
    00178     return fScale;
    00179 }
    00180
    00181 inline unsigned int XMLBigDecimal::getTotalDigit() const
    00182 {
    00183     return fIntVal->getTotalDigit();
    00184 }
    00185
    00186 inline bool XMLBigDecimal::operator==(const XMLBigDecimal& toCompare) const
    00187 {
    00188     return ( XMLBigInteger::compareValues(this->fIntVal, toCompare.fIntVal) == 0 ? true : false);
    00189 }
    00190
    00191 XERCES_CPP_NAMESPACE_END
    00192
    00193 #endif

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