/*
* Copyright 2011-2013 the original author or authors.
*
* Licensed 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 kr.debop4j.timeperiod;
import com.google.common.base.Objects;
import kr.debop4j.core.ValueObjectBase;
import lombok.Getter;
import lombok.Setter;
/**
* 년도와 월을 표현
*
* @author 배성혁 sunghyouk.bae@gmail.com
* @since 13. 5. 12. 오후 1:54
*/
public class YearAndMonth extends ValueObjectBase implements Comparable<YearAndMonth> {
private static final long serialVersionUID = -8352695673514932824L;
@Getter @Setter private Integer year;
@Getter @Setter private Integer monthOfYear;
/**
* Instantiates a new Year and month.
*
* @param year the year
* @param monthOfYear the month of year
*/
public YearAndMonth(Integer year, Integer monthOfYear) {
this.year = year;
this.monthOfYear = monthOfYear;
}
@Override
public int compareTo(YearAndMonth o) {
return hashCode() - o.hashCode();
}
@Override
public int hashCode() {
int y = (year != null) ? year : 0;
int m = (monthOfYear != null) ? monthOfYear : 0;
return y * 100 + m;
}
@Override
protected Objects.ToStringHelper buildStringHelper() {
return super.buildStringHelper()
.add("year", year)
.add("monthOfYear", monthOfYear);
}
}