Source code

001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *   http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied.  See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019package org.apache.reef.wake.time;
020
021/**
022 * Time object.
023 */
024public abstract class Time implements Comparable<Time> {
025
026  private final long timestamp;
027
028  public Time(final long timestamp) {
029    this.timestamp = timestamp;
030  }
031
032  public final long getTimeStamp() {
033    return this.timestamp;
034  }
035
036  @Override
037  public final String toString() {
038    return this.getClass().getName() + "[" + this.timestamp + "]";
039  }
040
041  @Override
042  public final int compareTo(final Time o) {
043    if (this.timestamp < o.timestamp) {
044      return -1;
045    }
046    if (this.timestamp > o.timestamp) {
047      return 1;
048    }
049    if (this.hashCode() < o.hashCode()) {
050      return -1;
051    }
052    if (this.hashCode() > o.hashCode()) {
053      return 1;
054    }
055    return 0;
056  }
057
058  @Override
059  public final boolean equals(final Object o) {
060    if (o instanceof Time) {
061      return compareTo((Time) o) == 0;
062    }
063    return false;
064  }
065
066  @Override
067  public final int hashCode() {
068    return super.hashCode();
069  }
070}