| /** |
| * 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 edu.uci.ics.hivesterix.serde.lazy.objectinspector; |
| |
| import java.io.Serializable; |
| import java.util.List; |
| |
| import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector; |
| import org.apache.hadoop.hive.serde2.objectinspector.StandardStructObjectInspector; |
| import org.apache.hadoop.hive.serde2.objectinspector.StructField; |
| |
| import edu.uci.ics.hivesterix.serde.lazy.LazyColumnar; |
| |
| /** |
| * ObjectInspector for LazyColumnar. |
| * |
| * @see LazyColumnar |
| */ |
| public class LazyColumnarObjectInspector extends StandardStructObjectInspector |
| implements Serializable { |
| |
| private static final long serialVersionUID = 1L; |
| |
| public LazyColumnarObjectInspector(List<String> structFieldNames, |
| List<ObjectInspector> structFieldObjectInspectors) { |
| super(structFieldNames, structFieldObjectInspectors); |
| } |
| |
| public LazyColumnarObjectInspector(List<StructField> fields) { |
| super(fields); |
| } |
| |
| @Override |
| public Object getStructFieldData(Object data, StructField fieldRef) { |
| if (data == null) { |
| return null; |
| } |
| LazyColumnar struct = (LazyColumnar) data; |
| MyField f = (MyField) fieldRef; |
| |
| int fieldID = f.getFieldID(); |
| assert (fieldID >= 0 && fieldID < fields.size()); |
| |
| Object column = struct.getField(fieldID); |
| return column; |
| } |
| |
| @Override |
| public List<Object> getStructFieldsDataAsList(Object data) { |
| if (data == null) { |
| return null; |
| } |
| LazyColumnar struct = (LazyColumnar) data; |
| return struct.getFieldsAsList(); |
| } |
| |
| public String toString() { |
| String str = ""; |
| for (MyField f : fields) { |
| str += f.getFieldName() + ":" |
| + f.getFieldObjectInspector().getTypeName() + " "; |
| } |
| return str; |
| } |
| } |