Java tutorial
/** * Copyright (C) 2010-2012 LShift Ltd. * * 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 net.lshift.diffa.config; import org.joda.time.DateTime; import org.joda.time.Interval; public class DailyPeriodUnit extends PeriodUnit { DailyPeriodUnit() { super("daily"); } @Override public boolean isCovering(Interval interval) { return interval != null && floor(interval.getEnd()).minusDays(1).compareTo(ceiling(interval.getStart())) >= 0; } @Override protected DateTime floor(DateTime instant) { return instant.dayOfYear().roundFloorCopy(); } @Override protected DateTime ceiling(DateTime instant) { return instant.dayOfYear().roundCeilingCopy(); } @Override protected DateTime subtractOneUnit(DateTime from) { return from.minusDays(1); } }