Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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.apache.phoenix.expression.function; import java.util.List; import org.apache.phoenix.expression.Expression; import org.joda.time.DateTime; /** * * Floor function that rounds up the {@link DateTime} to start of year. */ public class FloorYearExpression extends RoundJodaDateExpression { public FloorYearExpression() { super(); } public FloorYearExpression(List<Expression> children) { super(children); } @Override public long roundDateTime(DateTime datetime) { return datetime.year().roundFloorCopy().getMillis(); } }