| /* |
| * 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.execution.operator.window; |
| |
| import org.apache.iotdb.tsfile.read.common.block.TsBlock; |
| import org.apache.iotdb.tsfile.read.common.block.column.Column; |
| |
| public abstract class AbstractVariationWindow implements IWindow { |
| |
| private final double delta; |
| private final int controlColumnIndex; |
| private final boolean outputEndTime; |
| private final boolean ignoreNull; |
| |
| protected long startTime; |
| protected long endTime; |
| protected boolean initializedHeadValue; |
| protected boolean valueIsNull = false; |
| |
| protected AbstractVariationWindow(VariationWindowParameter variationWindowParameter) { |
| this.controlColumnIndex = variationWindowParameter.getControlColumnIndex(); |
| this.ignoreNull = variationWindowParameter.isIgnoringNull(); |
| this.outputEndTime = variationWindowParameter.isNeedOutputEndTime(); |
| this.delta = variationWindowParameter.getDelta(); |
| } |
| |
| @Override |
| public Column getControlColumn(TsBlock tsBlock) { |
| return tsBlock.getColumn(controlColumnIndex); |
| } |
| |
| @Override |
| public boolean contains(Column column) { |
| return false; |
| } |
| |
| public abstract void updatePreviousValue(); |
| |
| 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 void setInitializedHeadValue(boolean initializedHeadValue) { |
| this.initializedHeadValue = initializedHeadValue; |
| } |
| |
| public boolean ignoreNull() { |
| return ignoreNull; |
| } |
| |
| public boolean valueIsNull() { |
| return valueIsNull; |
| } |
| |
| public boolean isOutputEndTime() { |
| return outputEndTime; |
| } |
| |
| public double getDelta() { |
| return delta; |
| } |
| } |