| /* |
| * 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.iotdb.db.queryengine.plan.statement.component; |
| |
| import org.apache.iotdb.db.queryengine.plan.statement.StatementNode; |
| import org.apache.iotdb.tsfile.utils.TimeDuration; |
| |
| /** This class maintains information of {@code GROUP BY} clause. */ |
| public class GroupByTimeComponent extends StatementNode { |
| |
| // [startTime, endTime) |
| private long startTime; |
| private long endTime; |
| |
| // time interval |
| private TimeDuration interval; |
| |
| // sliding step |
| private TimeDuration slidingStep; |
| |
| private String originalInterval; |
| |
| private String originalSlidingStep; |
| |
| // if it is left close and right open interval |
| private boolean leftCRightO = true; |
| |
| public GroupByTimeComponent() { |
| // do nothing |
| } |
| |
| public boolean isLeftCRightO() { |
| return leftCRightO; |
| } |
| |
| public void setLeftCRightO(boolean leftCRightO) { |
| this.leftCRightO = leftCRightO; |
| } |
| |
| public TimeDuration getInterval() { |
| return interval; |
| } |
| |
| public void setInterval(TimeDuration interval) { |
| this.interval = interval; |
| } |
| |
| public long getStartTime() { |
| return startTime; |
| } |
| |
| public void setStartTime(long startTime) { |
| this.startTime = startTime; |
| } |
| |
| public long getEndTime() { |
| return endTime; |
| } |
| |
| public void setEndTime(long endTime) { |
| this.endTime = endTime; |
| } |
| |
| public TimeDuration getSlidingStep() { |
| return slidingStep; |
| } |
| |
| public void setSlidingStep(TimeDuration slidingStep) { |
| this.slidingStep = slidingStep; |
| } |
| |
| public String getOriginalInterval() { |
| return originalInterval; |
| } |
| |
| public void setOriginalInterval(String originalInterval) { |
| this.originalInterval = originalInterval; |
| } |
| |
| public void setOriginalSlidingStep(String originalSlidingStep) { |
| this.originalSlidingStep = originalSlidingStep; |
| } |
| |
| public String toSQLString() { |
| StringBuilder sqlBuilder = new StringBuilder(); |
| sqlBuilder.append("GROUP BY TIME").append(' '); |
| sqlBuilder.append('('); |
| if (startTime != 0 || endTime != 0) { |
| if (isLeftCRightO()) { |
| sqlBuilder |
| .append('[') |
| .append(startTime) |
| .append(',') |
| .append(' ') |
| .append(endTime) |
| .append(')'); |
| } else { |
| sqlBuilder |
| .append('(') |
| .append(startTime) |
| .append(',') |
| .append(' ') |
| .append(endTime) |
| .append(']'); |
| } |
| sqlBuilder.append(',').append(' '); |
| } |
| sqlBuilder.append(originalInterval); |
| if (!originalSlidingStep.equals(originalInterval)) { |
| sqlBuilder.append(',').append(' '); |
| sqlBuilder.append(originalSlidingStep); |
| } |
| sqlBuilder.append(')'); |
| return sqlBuilder.toString(); |
| } |
| } |