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'databene commons' is an open source Java library by Volker Bergmann.
It provides extensions to the Java core library by utility classes, abstract concepts
and concrete implementations.
/*
* Copyright (C) 2004-2014 Volker Bergmann ([email protected]).
* All rights reserved.
*
* 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 org.databene.commons.version;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
/**
* Date-related implementation of the {@link VersionNumberComponent} interface,
* which exhibits the same ordinal behavior as a snapshot version.
* Created: 12.02.2010 09:50:06
* @since 0.6.0
* @author Volker Bergmann
*/
public class DateVersionNumberComponent extends VersionNumberComponent {
private static final long serialVersionUID = 6057638663166486859L;
private final String dateString;
private final Date date;
public DateVersionNumberComponent(String dateString) throws ParseException {
this.dateString = dateString;
this.date = new SimpleDateFormat("yyyyMMdd").parse(dateString);
}
@Override
public int compareTo(VersionNumberComponent that) {
if (that instanceof DateVersionNumberComponent)
return this.date.compareTo(((DateVersionNumberComponent) that).date);
else
return StringVersionNumberComponent.SNAPSHOT.compareTo(that);
}
public Date getDate() {
return date;
}
@Override
public String toString() {
return dateString;
}
@Override
public int hashCode() {
return date.hashCode();
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null || this.getClass() != obj.getClass())
return false;
DateVersionNumberComponent that = (DateVersionNumberComponent) obj;
return this.date.equals(that.date);
}
}