| /* |
| * 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.transformation.dag.adapter; |
| |
| import org.apache.iotdb.commons.udf.utils.UDFBinaryTransformer; |
| import org.apache.iotdb.commons.udf.utils.UDFDataTypeTransformer; |
| import org.apache.iotdb.db.queryengine.transformation.api.LayerPointReader; |
| import org.apache.iotdb.tsfile.common.conf.TSFileConfig; |
| import org.apache.iotdb.udf.api.access.Row; |
| import org.apache.iotdb.udf.api.type.Binary; |
| import org.apache.iotdb.udf.api.type.Type; |
| |
| import java.io.IOException; |
| |
| public class LayerPointReaderBackedSingleColumnRow implements Row { |
| |
| private final LayerPointReader layerPointReader; |
| |
| public LayerPointReaderBackedSingleColumnRow(LayerPointReader layerPointReader) { |
| this.layerPointReader = layerPointReader; |
| } |
| |
| @Override |
| public long getTime() throws IOException { |
| return layerPointReader.currentTime(); |
| } |
| |
| @Override |
| public int getInt(int columnIndex) throws IOException { |
| return layerPointReader.currentInt(); |
| } |
| |
| @Override |
| public long getLong(int columnIndex) throws IOException { |
| return layerPointReader.currentLong(); |
| } |
| |
| @Override |
| public float getFloat(int columnIndex) throws IOException { |
| return layerPointReader.currentFloat(); |
| } |
| |
| @Override |
| public double getDouble(int columnIndex) throws IOException { |
| return layerPointReader.currentDouble(); |
| } |
| |
| @Override |
| public boolean getBoolean(int columnIndex) throws IOException { |
| return layerPointReader.currentBoolean(); |
| } |
| |
| @Override |
| public Binary getBinary(int columnIndex) throws IOException { |
| return UDFBinaryTransformer.transformToUDFBinary(layerPointReader.currentBinary()); |
| } |
| |
| @Override |
| public String getString(int columnIndex) throws IOException { |
| return layerPointReader.currentBinary().getStringValue(TSFileConfig.STRING_CHARSET); |
| } |
| |
| @Override |
| public Type getDataType(int columnIndex) { |
| return UDFDataTypeTransformer.transformToUDFDataType(layerPointReader.getDataType()); |
| } |
| |
| @Override |
| public boolean isNull(int columnIndex) { |
| try { |
| return layerPointReader.isCurrentNull(); |
| } catch (IOException e) { |
| throw new IllegalStateException(e); |
| } |
| } |
| |
| @Override |
| public int size() { |
| return 1; |
| } |
| } |