/hazelcast/src/main/java/com/hazelcast/impl/concurrentmap/LRUMapEntryComparator.java

https://bitbucket.org/gabral6_gmailcom/hazelcast · Java · 29 lines · 10 code · 4 blank · 15 comment · 1 complexity · 18741a8d19098589fb565840bfa4c612 MD5 · raw file

  1. /*
  2. * Copyright (c) 2008-2013, Hazelcast, Inc. All Rights Reserved.
  3. *
  4. * Licensed under the Apache License, Version 2.0 (the "License");
  5. * you may not use this file except in compliance with the License.
  6. * You may obtain a copy of the License at
  7. *
  8. * http://www.apache.org/licenses/LICENSE-2.0
  9. *
  10. * Unless required by applicable law or agreed to in writing, software
  11. * distributed under the License is distributed on an "AS IS" BASIS,
  12. * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13. * See the License for the specific language governing permissions and
  14. * limitations under the License.
  15. */
  16. package com.hazelcast.impl.concurrentmap;
  17. import com.hazelcast.core.MapEntry;
  18. import java.util.Comparator;
  19. public class LRUMapEntryComparator implements Comparator<MapEntry> {
  20. public int compare(MapEntry r1, MapEntry r2) {
  21. final long t1 = Math.max(r1.getLastAccessTime(), Math.max(r1.getLastUpdateTime(), r1.getCreationTime()));
  22. final long t2 = Math.max(r2.getLastAccessTime(), Math.max(r2.getLastUpdateTime(), r2.getCreationTime()));
  23. return t1 > t2 ? 1 : t1 == t2 ? 0 : -1;
  24. }
  25. }