| # 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. |
| |
| from abc import ABC, abstractmethod |
| |
| |
| class BaseSessionContext(ABC): |
| """ |
| Abstraction defining all methods, properties, and common functionality |
| shared amongst implementations using DataFusion as their SQL Parser/Engine |
| """ |
| |
| @abstractmethod |
| def register_table( |
| self, |
| table_name: str, |
| path: str, |
| **kwargs, |
| ): |
| pass |
| |
| # TODO: Remove abstraction, this functionality can be shared |
| # between all implementing classes since it just prints the |
| # logical plan from DataFusion |
| @abstractmethod |
| def explain(self, sql): |
| pass |
| |
| @abstractmethod |
| def sql(self, sql): |
| pass |