| .. 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. |
| |
| |
| |
| .. _howto/operator:LevelDBOperator: |
| |
| Google LevelDB Operator |
| ================================ |
| |
| `LevelDB <https://github.com/google/leveldb>`__ is a fast key-value storage library written at Google that provides |
| an ordered mapping from string keys to string values. |
| |
| .. note:: |
| |
| To use LevelDB hooks and operators you must requires installation of ``plyvel``. It will be |
| installed if you specify the extra ``apache-airflow-providers-google[leveldb]``. |
| |
| Put key |
| ^^^^^^^^^^^^^^^ |
| |
| Get, put, delete key or write_batch, create database with comparator or different options in LevelDB is performed with the |
| :class:`~airflow.providers.google.leveldb.operators.leveldb.LevelDBOperator` operator. |
| |
| .. exampleinclude:: /../../tests/system/providers/google/leveldb/example_leveldb.py |
| :language: python |
| :dedent: 4 |
| :start-after: [START howto_operator_leveldb_put_key] |
| :end-before: [END howto_operator_leveldb_put_key] |
| |
| |
| Reference |
| ^^^^^^^^^ |
| |
| For further information, look at: |
| |
| * `Product Documentation <https://github.com/google/leveldb/blob/master/doc/index.md>`__ |
| * `Client Library Documentation <https://plyvel.readthedocs.io/en/latest/>`__ |