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package rasj;
/*
* This file is part of rasdaman community.
*
* Rasdaman community is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Rasdaman community 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with rasdaman community. If not, see <http://www.gnu.org/licenses/>.
*
* Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 Peter Baumann /
rasdaman GmbH.
*
* For more information please see <http://www.rasdaman.org>
* or contact Peter Baumann via <baumann@rasdaman.com>.
*/
/** ***********************************************************
* <pre>
*
* PURPOSE:
* This class is used to express the storage options for MDD objects.
* In the current version, either the tile-size (for example 256000 bytes) or the
* tiling-domain (for example "[0:127,0:511]") can be specified. If
* neither is done, the default tile-size will be 128 kBytes.
*
* @version $Revision: 1.10 $
*
*
*
* COMMENTS:
*
* </pre>
*********************************************************** */
public class RasStorageLayout
{
static final String rcsid = "@(#)Package rasj.odmg, class RasStorageLayout: $Header: /home/rasdev/CVS-repository/rasdaman/java/rasj/RasStorageLayout.java,v 1.10 2003/12/10 21:04:23 rasdev Exp $";
/**
* Default tile size in kBytes. This value is currently set
* to 128000 and is used if the user has not specified
* a tile size explicitly.
**/
static final int DEFAULT_TILE_SIZE = 128000;
/**
* the spatial domain of the current storageLayout
**/
private RasMInterval spatialDomain;
/**
* the current tile size in bytes
**/
private int tileSize;
/**
* Default constructor.
**/
public RasStorageLayout()
{
spatialDomain = null;
tileSize = DEFAULT_TILE_SIZE;
}
/**
* Copy constructor taking another storage layout object as a parameter.
* @param stl the sorage layout object to be copied
**/
public RasStorageLayout(RasStorageLayout stl)
{
spatialDomain = stl.getSpatialDomain();
tileSize = stl.getTileSize();
}
/**
* Returns the current tiling-domain of this storage layout object.
* @return the tiling-domain of this storage layout object
**/
public final RasMInterval getSpatialDomain()
{
return spatialDomain;
}
/**
* Sets the tile-size (in bytes) and resets the tiling-domain to null.
* @param size the tile-size (in bytes)
**/
public void setTileSize(int size)
{
tileSize = size;
spatialDomain = null;
}
/**
* Returns the current tile-size (in bytes).
* @return the tile-size
**/
public final int getTileSize()
{
return tileSize;
}
/**
* Sets the tiling-domain for this storage layout object and resets the tile-size
* to null.
* @param domain the tiling-domain
**/
public void setTileDomain(String domain)
throws RasResultIsNoIntervalException, RasStreamInputOverflowException, RasIndexOutOfBoundsException
{
spatialDomain = new RasMInterval(domain);
tileSize = 0;
}
/**
* This method tests if the current storageLayout object is compatible to a given domain.
* @param domain the domain to be compared
* @return true if the tiling-domain of this storage layout object is either null or
* has the same number of dimensions as the given domain, otherwise false
**/
public boolean isCompatible(RasMInterval domain)
{
if(spatialDomain == null)
return true;
else
return (domain.dimension() == spatialDomain.dimension());
}
/**
* Returns a string representation of this class.
**/
public String toString()
{
if(spatialDomain != null)
return "\nTileDomain: " + spatialDomain + "\n";
else
return "\nTileSize: " + tileSize + "\n";
}
}
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