/*
* Geotoolkit.org - An Open Source Java GIS Toolkit
* http://www.geotoolkit.org
*
* (C) 2001-2012, Open Source Geospatial Foundation (OSGeo)
* (C) 2009-2012, Geomatys
*
* 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.
*
* This package contains documentation from OpenGIS specifications.
* OpenGIS consortium's work is fully acknowledged here.
*/
package org.geotoolkit.referencing;
import java.util.Comparator;
import java.io.Serializable;
import java.io.ObjectStreamException;
import org.opengis.referencing.IdentifiedObject;
/**
* {@link IdentifiedObjects#REMARKS_COMPARATOR} implementation as a named class (rather than anonymous)
* for more predictable serialization.
*
* @author Martin Desruisseaux (IRD, Geomatys)
* @version 3.20
*
* @since 3.20 (derived from 1.2)
* @module
*/
final class RemarksComparator implements Comparator<IdentifiedObject>, Serializable {
/** For cross-version compatibility. */
private static final long serialVersionUID = -6675419613224162715L;
/** Compares the given identified objects for order. */
@Override public int compare(final IdentifiedObject o1, final IdentifiedObject o2) {
return IdentifiedObjects.doCompare(o1.getRemarks(), o2.getRemarks());
}
/** Canonicalizes to the singleton on deserialization. */
protected Object readResolve() throws ObjectStreamException {
return IdentifiedObjects.REMARKS_COMPARATOR;
}
}