DefaultComparator xref

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    1   /***
    2    *
    3    * Copyright 2004 Protique Ltd
    4    *
    5    * Licensed under the Apache License, Version 2.0 (the "License");
    6    * you may not use this file except in compliance with the License.
    7    * You may obtain a copy of the License at
    8    *
    9    * http://www.apache.org/licenses/LICENSE-2.0
    10   *
    11   * Unless required by applicable law or agreed to in writing, software
    12   * distributed under the License is distributed on an "AS IS" BASIS,
    13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14   * See the License for the specific language governing permissions and
    15   * limitations under the License.
    16   *
    17   **/
    18  package org.codehaus.activemq.util;
    19
    20  import java.io.Serializable;
    21  import java.util.Comparator;
    22
    23  /***
    24   * A trivial default {@link Comparator} which only works on objects
    25   * which are {@link Comparable}
    26   *
    27   * @version $Revision: 1.1 $
    28   */
    29  public class DefaultComparator implements Comparator, Serializable {
    30      final static long serialVersionUID = 1L;
    31
    32      public int compare(Object o1, Object o2) {
    33          Comparable c1 = (Comparable) o1;
    34          return c1.compareTo(o2);
    35      }
    36  }