de.dhke.projects.cutil.collections.immutable.GenericImmutableSortedSet.java Source code

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Here is the source code for de.dhke.projects.cutil.collections.immutable.GenericImmutableSortedSet.java

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/**
 * (c) 2009-2014 Peter Wullinger
 *
 * $Id$
 *
 * Use, modification and restribution of this file are covered by the
 * terms of the Artistic License 2.0.
 *
 * You should have received a copy of the license terms in a file named
 * "LICENSE" together with this software package.
 *
 * Disclaimer of Warranty: THE PACKAGE IS PROVIDED BY THE COPYRIGHT
 * HOLDER AND CONTRIBUTORS "AS IS' AND WITHOUT ANY EXPRESS OR IMPLIED
 * WARRANTIES. THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR
 * A PARTICULAR PURPOSE, OR NON-INFRINGEMENT ARE DISCLAIMED TO THE
 * EXTENT PERMITTED BY YOUR LOCAL LAW. UNLESS REQUIRED BY LAW, NO
 * COPYRIGHT HOLDER OR CONTRIBUTOR WILL BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING IN ANY WAY OUT
 * OF THE USE OF THE PACKAGE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGE.
 **/
package de.dhke.projects.cutil.collections.immutable;

import java.util.Comparator;
import java.util.SortedSet;
import org.apache.commons.collections15.Transformer;

/**
 *
 * @param <T> 
 * @param <S> 
 * @author Peter Wullinger <java@dhke.de>
 */
public class GenericImmutableSortedSet<T, S extends SortedSet<T>> extends GenericImmutableSet<T, S>
        implements SortedSet<T> {
    protected GenericImmutableSortedSet(final S baseSet, Transformer<T, T> valueTransformer) {
        super(baseSet, valueTransformer);
    }

    public static <T, S extends SortedSet<T>> SortedSet<T> decorate(final S baseSet) {
        return new GenericImmutableSortedSet<>(baseSet, null);
    }

    public static <T, S extends SortedSet<T>> SortedSet<T> decorate(final S baseSet,
            final Transformer<T, T> valueTransformer) {
        return new GenericImmutableSortedSet<>(baseSet, valueTransformer);
    }

    @Override
    public Comparator<? super T> comparator() {
        throw new UnsupportedOperationException("Not supported yet.");
    }

    @Override
    public SortedSet<T> subSet(T fromElement, T toElement) {
        return GenericImmutableSortedSet.decorate(getDecoratee().subSet(fromElement, toElement),
                getValueTransformer());
    }

    @Override
    public SortedSet<T> headSet(T toElement) {
        return GenericImmutableSortedSet.decorate(getDecoratee().headSet(toElement), getValueTransformer());
    }

    @Override
    public SortedSet<T> tailSet(T fromElement) {
        return GenericImmutableSortedSet.decorate(getDecoratee().tailSet(fromElement), getValueTransformer());
    }

    @Override
    public T first() {
        return getValueTransformer().transform(getDecoratee().first());
    }

    @Override
    public T last() {
        return getValueTransformer().transform(getDecoratee().last());
    }
}