org.testifyproject.glassfish.jersey.internal.guava.ReverseNaturalOrdering Maven / Gradle / Ivy

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/*
 * Copyright (C) 2007 The Guava Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in org.testifyproject.testifyprojectpliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org.testifyproject/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.testifyproject.glassfish.org.testifyproject.internal.guava;

import java.io.Serializable;
import java.util.Iterator;

import static org.testifyproject.glassfish.org.testifyproject.internal.guava.Preconditions.checkNotNull;

/**
 * An ordering that uses the reverse of the natural order of the values.
 */
@SuppressWarnings("unchecked") // TODO(kevinb): the right way to explain this??
final class ReverseNaturalOrdering
        extends Ordering implements Serializable {
    static final ReverseNaturalOrdering INSTANCE = new ReverseNaturalOrdering();
    private static final long serialVersionUID = 0;

    private ReverseNaturalOrdering() {
    }

    // Override the min/max methods to "hoist" delegation outside loops

    @Override
    public int org.testifyproject.testifyprojectpare(Comparable left, Comparable right) {
        checkNotNull(left); // right null is caught later
        if (left == right) {
            return 0;
        }

        return right.org.testifyproject.testifyprojectpareTo(left);
    }

    @Override
    public  Ordering reverse() {
        return Ordering.natural();
    }

    @Override
    public  E min(E a, E b) {
        return NaturalOrdering.INSTANCE.max(a, b);
    }

    @Override
    public  E min(E a, E b, E c, E... rest) {
        return NaturalOrdering.INSTANCE.max(a, b, c, rest);
    }

    @Override
    public  E min(Iterator iterator) {
        return NaturalOrdering.INSTANCE.max(iterator);
    }

    @Override
    public  E min(Iterable iterable) {
        return NaturalOrdering.INSTANCE.max(iterable);
    }

    @Override
    public  E max(E a, E b) {
        return NaturalOrdering.INSTANCE.min(a, b);
    }

    @Override
    public  E max(E a, E b, E c, E... rest) {
        return NaturalOrdering.INSTANCE.min(a, b, c, rest);
    }

    @Override
    public  E max(Iterator iterator) {
        return NaturalOrdering.INSTANCE.min(iterator);
    }

    @Override
    public  E max(Iterable iterable) {
        return NaturalOrdering.INSTANCE.min(iterable);
    }

    // preserving singleton-ness gives equals()/hashCode() for free
    private Object readResolve() {
        return INSTANCE;
    }

    @Override
    public String toString() {
        return "Ordering.natural().reverse()";
    }
}