2 * Copyright 2005 the original author or authors.
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
17 package org.wamblee.crawler.kiss.guide;
23 public class TimeInterval {
36 * Construts the interval.
37 * @param aBegin Start time.
38 * @param aEnd End time.
40 public TimeInterval(Time aBegin, Time aEnd) {
46 * Gets the begin time.
49 public Time getBegin() {
57 public Time getEnd() {
64 * @see java.lang.Object#toString()
67 public String toString() {
68 return _begin + " - " + _end;
72 * Determines if there is an overlap between the current interval and given
76 * Interval to compare with.
77 * @return True iff there is overlap
79 public boolean overlap(TimeInterval aInterval) {
81 if (isUncertain() || aInterval.isUncertain()) {
82 // Optimistic assume there is no overlap if one of the intervals is
87 if (_end.asFloat() <= aInterval._begin.asFloat()
88 || aInterval._end.asFloat() <= _begin.asFloat()) {
96 * Determines if the actual time that the program corresponds to is
97 * uncertain due to the representation of a period of more than 24 hours
98 * using a 24 hour clock.
100 * @return True iff the interval is uncertain.
102 boolean isUncertain() {
103 return _begin.asFloat() > _end.asFloat();
107 * @see java.lang.Object#equals(java.lang.Object)j
110 public boolean equals(Object obj) {
111 if ( !(obj instanceof TimeInterval)) {
114 return obj.toString().equals(obj.toString());
118 * @see java.lang.Object#hashCode()
121 public int hashCode() {
122 return _begin.hashCode();