/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2003-2008, Open Source Geospatial Foundation (OSGeo)
*
* This library 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;
* version 2.1 of the License.
*
* This library 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.
*/
package org.geotools.data.vpf.io;
import java.io.IOException;
import org.geotools.data.vpf.ifc.VPFHeader;
import org.geotools.data.vpf.ifc.VPFRow;
/**
* SpatialIndexInputStream.java Created: Mon Feb 24 22:25:15 2003
*
* @author <a href="mailto:kobit@users.sourceforge.net">Artur Hefczyc</a>
* @source $URL$
* @version $Id$
*/
public class SpatialIndexInputStream extends VPFInputStream {
/** Variable constant <code>SPATIAL_INDEX_ROW_SIZE</code> keeps value of */
public static final long SPATIAL_INDEX_ROW_SIZE = 8;
/**
* Creates a new <code>SpatialIndexInputStream</code> instance.
*
* @param file a <code>String</code> value
* @param byteOrder a <code>char</code> value
*
* @exception IOException if an error occurs
*/
public SpatialIndexInputStream(String file, char byteOrder)
throws IOException {
super(file, byteOrder);
}
/**
* Describe <code>tableSize</code> method here.
*
* @return an <code>int</code> value
*/
public int tableSize() {
return -1;
}
/**
* Describe <code>readHeader</code> method here.
*
* @return a <code>VPFHeader</code> value
*
* @exception IOException if an error occurs
*/
public VPFHeader readHeader() throws IOException {
return new SpatialIndexHeader(readInteger(), readFloat(), readFloat(),
readFloat(), readFloat(), readInteger());
}
/**
* Describe <code>readRow</code> method here.
*
* @return a <code>VPFRow</code> value
*
* @exception IOException if an error occurs
*/
public VPFRow readRow() throws IOException {
return null;
}
/**
* Describe <code>setPosition</code> method here.
*
* @param pos a <code>long</code> value
*
* @exception IOException if an error occurs
*/
public void setPosition(long pos) throws IOException {
seek(SPATIAL_INDEX_ROW_SIZE * pos);
}
}