| /* |
| * 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.metastore.rdbms.components.tables; |
| |
| import org.apache.drill.metastore.components.tables.TableMetadataUnit; |
| import org.apache.drill.metastore.components.tables.Tables; |
| import org.apache.drill.metastore.components.tables.TablesMetadataTypeValidator; |
| import org.apache.drill.metastore.operate.Metadata; |
| import org.apache.drill.metastore.operate.Modify; |
| import org.apache.drill.metastore.operate.Read; |
| import org.apache.drill.metastore.rdbms.QueryExecutorProvider; |
| import org.apache.drill.metastore.rdbms.RdbmsMetastoreContext; |
| import org.apache.drill.metastore.rdbms.operate.RdbmsMetadata; |
| import org.apache.drill.metastore.rdbms.operate.RdbmsModify; |
| import org.apache.drill.metastore.rdbms.operate.RdbmsRead; |
| import org.apache.drill.metastore.rdbms.transform.Transformer; |
| |
| /** |
| * Metastore Tables component which stores tables metadata in the corresponding RDBMS tables: |
| * TABLES, SEGMENTS, FILES, ROW_GROUPS, PARTITIONS. |
| * Provides methods to read and modify tables metadata. |
| */ |
| public class RdbmsTables implements Tables, RdbmsMetastoreContext<TableMetadataUnit> { |
| |
| private final QueryExecutorProvider executorProvider; |
| |
| public RdbmsTables(QueryExecutorProvider executorProvider) { |
| this.executorProvider = executorProvider; |
| } |
| |
| public RdbmsMetastoreContext<TableMetadataUnit> context() { |
| return this; |
| } |
| |
| @Override |
| public Metadata metadata() { |
| return new RdbmsMetadata(); |
| } |
| |
| @Override |
| public Read<TableMetadataUnit> read() { |
| return new RdbmsRead<>(TablesMetadataTypeValidator.INSTANCE, context()); |
| } |
| |
| @Override |
| public Modify<TableMetadataUnit> modify() { |
| return new RdbmsModify<>(TablesMetadataTypeValidator.INSTANCE, context()); |
| } |
| |
| @Override |
| public QueryExecutorProvider executorProvider() { |
| return executorProvider; |
| } |
| |
| @Override |
| public Transformer<TableMetadataUnit> transformer() { |
| return TablesTransformer.get(); |
| } |
| } |