content: /*
   * 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.bookkeeper.versioning;
  
  import lombok.EqualsAndHashCode;
  
  /**
   * A version object holds integer version.
   */
  @EqualsAndHashCode
  public class LongVersion implements Version {
      protected long version;
  
      public LongVersion(long v) {
          this.version = v;
      }
  
      @Override
      public Occurred compare(Version v) {
          if (null == v) {
              throw new NullPointerException("Version is not allowed to be null.");
          }
          if (v == Version.NEW) {
              return Occurred.AFTER;
          } else if (v == Version.ANY) {
              return Occurred.CONCURRENTLY;
          } else if (!(v instanceof LongVersion)) {
              throw new IllegalArgumentException("Invalid version type");
          }
          LongVersion zv = (LongVersion) v;
          int res = Long.compare(version, zv.version);
          if (res == 0) {
              return Occurred.CONCURRENTLY;
          } else if (res < 0) {
              return Occurred.BEFORE;
          } else {
              return Occurred.AFTER;
          }
      }
  
      public long getLongVersion() {
          return version;
      }
  
      public LongVersion setLongVersion(long v) {
          this.version = v;
          return this;
      }
  
      @Override
      public String toString() {
          return Long.toString(version, 10);
      }
  }
  