/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2002-2008, 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.feature;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.Set;
import java.util.SortedSet;
/**
* Utility class used by feature model implementation.
* <p>
* This class is only for use internally and is not meant to be called by
* client code.
* </p>
* @author Justin Deoliveira, The Open Planning Project
*
*
*
* @source $URL$
*/
public class FeatureImplUtils {
/**
* Wraps a collection in an umodifiable collection based on the interface
* the collection implements.
* <p>
* A list will result in an umodifiable list, a set in an unmodifiable set,
* etc..
* </p>
*
*/
public static Collection unmodifiable( Collection original ) {
if ( original instanceof Set ) {
if ( original instanceof SortedSet ) {
return Collections.unmodifiableSortedSet((SortedSet) original);
}
return Collections.unmodifiableSet((Set)original);
}
else if ( original instanceof List ) {
return Collections.unmodifiableList((List)original);
}
return Collections.unmodifiableCollection(original);
}
}