| /* |
| * 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.drill.exec.store.hive; |
| |
| import org.apache.hadoop.hive.metastore.api.FieldSchema; |
| import org.apache.hadoop.hive.metastore.api.StorageDescriptor; |
| import org.apache.hadoop.hive.metastore.api.Table; |
| |
| import java.util.List; |
| import java.util.Map; |
| |
| /** |
| * This class is wrapper of {@link Table} class and used for |
| * storage of such additional information as column lists cache. |
| */ |
| @SuppressWarnings("serial") |
| public class HiveTableWithColumnCache extends Table { |
| |
| private ColumnListsCache columnListsCache; |
| |
| public HiveTableWithColumnCache() { |
| super(); |
| } |
| |
| public HiveTableWithColumnCache( |
| String tableName, |
| String dbName, |
| String owner, |
| int createTime, |
| int lastAccessTime, |
| int retention, |
| StorageDescriptor sd, |
| List<FieldSchema> partitionKeys, |
| Map<String,String> parameters, |
| String viewOriginalText, |
| String viewExpandedText, |
| String tableType, |
| ColumnListsCache columnListsCache) { |
| super(tableName, dbName, owner, createTime, lastAccessTime, retention, sd, |
| partitionKeys, parameters, viewOriginalText, viewExpandedText, tableType); |
| this.columnListsCache = columnListsCache; |
| } |
| |
| public HiveTableWithColumnCache(HiveTableWithColumnCache other) { |
| super(other); |
| columnListsCache = other.getColumnListsCache(); |
| } |
| |
| public HiveTableWithColumnCache(Table other, ColumnListsCache columnListsCache) { |
| super(other); |
| this.columnListsCache = columnListsCache; |
| } |
| |
| /** |
| * To reduce physical plan for Hive tables, unique partition lists of columns stored in the |
| * table's column lists cache. |
| * |
| * @return table's column lists cache |
| */ |
| public ColumnListsCache getColumnListsCache() { |
| return columnListsCache; |
| } |
| } |