XMLNumber.java

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00001 
00002 //
00003 // XML storage classes version 1.2
00004 //
00005 // XMLNumber.java
00006 //
00007 // Copyright (c) 2004, 2005, 2007 Martin Fuchs <martin-fuchs@gmx.net>
00008 //
00009 
00010 
00011 /*
00012 
00013  All rights reserved.
00014 
00015  Redistribution and use in source and binary forms, with or without
00016  modification, are permitted provided that the following conditions are met:
00017 
00018  * Redistributions of source code must retain the above copyright
00019     notice, this list of conditions and the following disclaimer.
00020  * Redistributions in binary form must reproduce the above copyright
00021     notice, this list of conditions and the following disclaimer in
00022     the documentation and/or other materials provided with the
00023     distribution.
00024 
00025  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
00026  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00027  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00028  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
00029  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
00030  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
00031  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
00032  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
00033  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
00034  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
00035  POSSIBILITY OF SUCH DAMAGE.
00036 
00037 */
00038 
00039 package de.mfuchs.xmlstorage;
00040 
00041 import java.math.BigDecimal;
00042 
00043 import de.mfuchs.xmlstorage.stream.XMLStreamReader;
00044 
00045 
00046 /**
00047  * XMLNumber is the type converter for numeric data in XMLStorage.
00048  */
00049 public class XMLNumber
00050 {
00051     public XMLNumber(BigDecimal value)
00052     {
00053         _value = value;
00054     }
00055 
00056     public XMLNumber(final String value)
00057     {
00058         this(value, new BigDecimal(0.));
00059     }
00060 
00061     public XMLNumber(final String value, BigDecimal def/*=0*/)
00062     {
00063         if (value!=null && value.length()>0)
00064             _value = new BigDecimal(value);
00065         else
00066             _value = def;
00067     }
00068 
00069 
00070     public XMLNumber(final AbstractXMLNode node, final String attrName)
00071     {
00072         this(node, attrName, new BigDecimal(0.));
00073     }
00074 
00075     public XMLNumber(final XMLPos pos, final String attrName)
00076     {
00077         this(pos.cur(), attrName, new BigDecimal(0.));
00078     }
00079 
00080     public XMLNumber(final XMLPos pos, final String attrName, BigDecimal def/*=0*/)
00081     {
00082         this(pos.cur(), attrName, def);
00083     }
00084 
00085     public XMLNumber(final XMLStreamReader reader, final String attrName)
00086     {
00087         this(reader.getNode(), attrName, new BigDecimal(0.));
00088     }
00089 
00090     public XMLNumber(final XMLStreamReader reader, final String attrName, BigDecimal def/*=0*/)
00091     {
00092         this(reader.getNode(), attrName, def);
00093     }
00094 
00095 
00096     public XMLNumber(final AbstractXMLNode node, final String attrName, BigDecimal def/*=0*/)
00097     {
00098         final String value = node.get(attrName);
00099 
00100         if (value.length() > 0)
00101             _value = new BigDecimal(value);
00102         else
00103             _value = def;
00104     }
00105 
00106     public BigDecimal bigDecimalValue()
00107     {
00108         return _value;
00109     }
00110 
00111     public String toString()
00112     {
00113         return String.valueOf(_value);
00114     }
00115 
00116     protected BigDecimal _value;
00117 }