net.sf.jasperreports.data.cache.TransformedColumnValues 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.io.IOException;
import java.io.Serializable;
import net.sf.jasperreports.engine.JRConstants;
/**
* @author Lucian Chirita ([email protected])
*/
public class TransformedColumnValues implements ColumnValues, Serializable
{
private static final long serialVersionUID = JRConstants.SERIAL_VERSION_UID;
private ColumnValues rawValues;
private ValueTransformer transformer;
public TransformedColumnValues(ColumnValues rawValues,
ValueTransformer transformer)
{
this.rawValues = rawValues;
this.transformer = transformer;
}
private void writeObject(java.io.ObjectOutputStream out) throws IOException
{
out.writeUnshared(rawValues);
out.writeObject(transformer);
}
private void readObject(java.io.ObjectInputStream in) throws IOException, ClassNotFoundException
{
this.rawValues = (ColumnValues) in.readUnshared();
this.transformer = (ValueTransformer) in.readObject();
}
@Override
public int size()
{
return rawValues.size();
}
@Override
public ColumnValuesIterator iterator()
{
return new TransformedIterator();
}
protected class TransformedIterator implements ColumnValuesIterator
{
private final ColumnValuesIterator rawIterator;
public TransformedIterator()
{
rawIterator = rawValues.iterator();
}
@Override
public void moveFirst()
{
rawIterator.moveFirst();
}
@Override
public boolean next()
{
return rawIterator.next();
}
@Override
public Object get()
{
Object rawValue = rawIterator.get();
return transformer.get(rawValue);
}
}
}