GridNodeOrderComparator.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/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.apache.ignite.internal;

import java.io.Serializable;
import java.util.Comparator;
import org.apache.ignite.cluster.ClusterNode;

/**
 * Node order comparator.
 */
public class GridNodeOrderComparator implements Comparator<ClusterNode>, Serializable {
    /** */
    private static final long serialVersionUID = 0L;

    /** */
    public static final Comparator<ClusterNode> INSTANCE = new GridNodeOrderComparator();

    /**
     * Private constructor. Don't create this class, use {@link #INSTANCE}.
     */
    private GridNodeOrderComparator() {

    }

    /** {@inheritDoc} */
    @Override public int compare(ClusterNode n1, ClusterNode n2) {
        return n1.order() < n2.order() ? -1 : n1.order() > n2.order() ? 1 : n1.id().compareTo(n2.id());
    }
}