net.sf.jasperreports.data.cache.BigDecimalStore Maven / Gradle / Ivy
/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2014 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.math.BigDecimal;
import java.math.BigInteger;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* @author Lucian Chirita ([email protected])
*/
public class BigDecimalStore implements BufferColumnStore
{
private static final Log log = LogFactory.getLog(BigDecimalStore.class);
private final BigIntegerStore valueStore;
private final LongArrayStore scaleStore;
public BigDecimalStore(int size)
{
valueStore = new BigIntegerStore(size);
scaleStore = new LongArrayStore(size);
if (log.isDebugEnabled())
{
log.debug(this + ": created value store " + valueStore);
log.debug(this + ": created scale store " + scaleStore);
}
}
@Override
public Class getBaseValuesType()
{
return BigDecimal.class;
}
public void addValue(Object object)
{
if (!(object instanceof BigDecimal))
{
throw new IllegalArgumentException();
}
BigDecimal value = (BigDecimal) object;
BigInteger unscaledValue = value.unscaledValue();
int scale = value.scale();
valueStore.addValue(unscaledValue);
scaleStore.addValue(scale);
}
public boolean full()
{
return valueStore.full() || scaleStore.full();
}
public void resetValues()
{
valueStore.resetValues();
scaleStore.resetValues();
}
public ColumnValues createValues()
{
// TODO lucianc check empty
ColumnValues unscaledValues = valueStore.createValues();
ColumnValues scaleValues = scaleStore.createValues();
return new BigDecimalValues(unscaledValues, scaleValues);
}
public String toString()
{
return "BigDecimalStore@" + hashCode();
}
}