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Free Java Reporting Library
/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2022 TIBCO Software Inc. All rights reserved.
* http://www.jaspersoft.com
*
* Unless you have purchased a commercial license agreement from Jaspersoft,
* the following license terms apply:
*
* This program is part of JasperReports.
*
* JasperReports is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* JasperReports is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with JasperReports. If not, see .
*/
package net.sf.jasperreports.data.cache;
import java.io.IOException;
import java.io.Serializable;
import java.math.BigDecimal;
import java.math.BigInteger;
import net.sf.jasperreports.engine.JRConstants;
/**
* @author Lucian Chirita ([email protected])
*/
public class BigDecimalValues implements ColumnValues, Serializable
{
private static final long serialVersionUID = JRConstants.SERIAL_VERSION_UID;
private ColumnValues unscaledValues;
private ColumnValues scaleValues;
public BigDecimalValues(ColumnValues unscaledValues,
ColumnValues scaleValues)
{
if (unscaledValues.size() != scaleValues.size())
{
throw new IllegalArgumentException();
}
this.unscaledValues = unscaledValues;
this.scaleValues = scaleValues;
}
private void writeObject(java.io.ObjectOutputStream out) throws IOException
{
out.writeUnshared(unscaledValues);
out.writeUnshared(scaleValues);
}
private void readObject(java.io.ObjectInputStream in) throws IOException, ClassNotFoundException
{
this.unscaledValues = (ColumnValues) in.readUnshared();
this.scaleValues = (ColumnValues) in.readUnshared();
}
@Override
public int size()
{
return unscaledValues.size();
}
@Override
public ColumnValuesIterator iterator()
{
ColumnValuesIterator unscaledIterator = unscaledValues.iterator();
ColumnValuesIterator scaleIterator = scaleValues.iterator();
return new BigDecimalValuesIterator(unscaledIterator, scaleIterator);
}
}
class BigDecimalValuesIterator implements ColumnValuesIterator
{
private final ColumnValuesIterator unscaledIterator;
private final ColumnValuesIterator scaleIterator;
public BigDecimalValuesIterator(ColumnValuesIterator unscaledIterator,
ColumnValuesIterator scaleIterator)
{
this.unscaledIterator = unscaledIterator;
this.scaleIterator = scaleIterator;
}
@Override
public void moveFirst()
{
unscaledIterator.moveFirst();
scaleIterator.moveFirst();
}
@Override
public boolean next()
{
return unscaledIterator.next() && scaleIterator.next();
}
@Override
public Object get()
{
BigInteger unscaled = (BigInteger) unscaledIterator.get();
int scale = ((Number) scaleIterator.get()).intValue();
return new BigDecimal(unscaled, scale);
}
}