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Free Java Reporting Library
/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2019 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 ByteArrayValues implements ColumnValues, Serializable
{
private static final long serialVersionUID = JRConstants.SERIAL_VERSION_UID;
private byte[] values;
private long linearFactor;
private long linearOffset;
public ByteArrayValues(byte[] values, long linearFactor, long linearOffset)
{
this.values = values;
this.linearFactor = linearFactor;
this.linearOffset = linearOffset;
}
private void writeObject(java.io.ObjectOutputStream out) throws IOException
{
out.writeLong(linearFactor);
out.writeLong(linearOffset);
out.writeInt(values.length);// TODO lucianc write this as short?
for (int i = 0; i < values.length; i++)
{
out.writeByte(values[i]);
}
}
private void readObject(java.io.ObjectInputStream in) throws IOException, ClassNotFoundException
{
linearFactor = in.readLong();
linearOffset = in.readLong();
int size = in.readInt();
values = new byte[size];
for (int i = 0; i < size; i++)
{
values[i] = in.readByte();
}
}
@Override
public int size()
{
return values.length;
}
@Override
public ColumnValuesIterator iterator()
{
return new ValuesIterator();
}
protected class ValuesIterator extends IndexColumnValueIterator
{
public ValuesIterator()
{
super(values.length);
}
@Override
public Object get()
{
return (values[currentIndex] & 0xFF) * linearFactor + linearOffset;
}
}
}