/*
*
* * 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.usergrid.persistence.graph.serialization.impl.shard.impl.comparators;
import java.util.Comparator;
import org.apache.usergrid.persistence.graph.MarkedEdge;
/**
* Sorts longs from high to low. High is "less than" the low values;
*
*/
public class DescendingTimestampComparator implements Comparator<MarkedEdge> {
public static final DescendingTimestampComparator INSTANCE = new DescendingTimestampComparator();
@Override
public int compare( final MarkedEdge o1, final MarkedEdge o2 ) {
return Long.compare( o1.getTimestamp(), o2.getTimestamp() )*-1;
}
}