org.testifyproject.glassfish.jersey.internal.guava.ReverseOrdering 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 a given order.
 */
final class ReverseOrdering extends Ordering implements Serializable {
    private static final long serialVersionUID = 0;
    private final Ordering forwardOrder;

    ReverseOrdering(Ordering forwardOrder) {
        this.forwardOrder = checkNotNull(forwardOrder);
    }

    @Override
    public int org.testifyproject.testifyprojectpare(T a, T b) {
        return forwardOrder.org.testifyproject.testifyprojectpare(b, a);
    }

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

    @SuppressWarnings("unchecked") // how to explain?
    @Override
    public  Ordering reverse() {
        return (Ordering) forwardOrder;
    }

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

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

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

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

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

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

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

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

    @Override
    public int hashCode() {
        return -forwardOrder.hashCode();
    }

    @Override
    public boolean equals(Object object) {
        if (object == this) {
            return true;
        }
        if (object instanceof ReverseOrdering) {
            ReverseOrdering that = (ReverseOrdering) object;
            return this.forwardOrder.equals(that.forwardOrder);
        }
        return false;
    }

    @Override
    public String toString() {
        return forwardOrder + ".reverse()";
    }
}