Source code for airflow.example_dags.example_latest_only

#
# 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.
"""Example of the LatestOnlyOperator"""

from __future__ import annotations

import datetime

from airflow.models.dag import DAG
from airflow.operators.empty import EmptyOperator
from airflow.providers.standard.operators.latest_only import LatestOnlyOperator

with DAG(
    dag_id="latest_only",
    schedule=datetime.timedelta(hours=4),
    start_date=datetime.datetime(2021, 1, 1),
    catchup=False,
    tags=["example2", "example3"],
) as dag:
[docs] latest_only = LatestOnlyOperator(task_id="latest_only")
task1 = EmptyOperator(task_id="task1") latest_only >> task1

Was this entry helpful?