org.geotools.feature.FeatureImplUtils Maven / Gradle / Ivy
/*
* 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.
*
* This class is only for use internally and is not meant to be called by client code.
*
* @author Justin Deoliveira, The Open Planning Project
*/
public class FeatureImplUtils {
/**
* Wraps a collection in an umodifiable collection based on the interface the collection
* implements.
*
*
A list will result in an umodifiable list, a set in an unmodifiable set, etc..
*/
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);
}
}