| /* |
| * 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.processors.cache; |
| |
| import org.apache.ignite.internal.processors.cache.version.GridCacheVersion; |
| |
| /** |
| * Atomic cache version comparator. |
| */ |
| public class GridCacheAtomicVersionComparator { |
| /** |
| * Compares two cache versions. |
| * |
| * @param one First version. |
| * @param other Second version. |
| * @return Comparison value. |
| */ |
| public int compare(GridCacheVersion one, GridCacheVersion other) { |
| int topVer = one.topologyVersion(); |
| int otherTopVer = other.topologyVersion(); |
| |
| if (topVer == otherTopVer) { |
| long locOrder = one.order(); |
| long otherLocOrder = other.order(); |
| |
| if (locOrder == otherLocOrder) { |
| int nodeOrder = one.nodeOrder(); |
| int otherNodeOrder = other.nodeOrder(); |
| |
| return nodeOrder == otherNodeOrder ? 0 : nodeOrder < otherNodeOrder ? -1 : 1; |
| } |
| else |
| return locOrder > otherLocOrder ? 1 : -1; |
| } |
| else |
| return topVer > otherTopVer ? 1 : -1; |
| } |
| } |