airflow.models.skipmixin
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Module Contents¶
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class
airflow.models.skipmixin.
SkipMixin
[source]¶ Bases:
airflow.utils.log.logging_mixin.LoggingMixin
A Mixin to skip Tasks Instances
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skip
(self, dag_run: ‘DagRun’, execution_date: ‘timezone.DateTime’, tasks: ‘Iterable[BaseOperator]’, session: ‘Session’ = None)[source]¶ Sets tasks instances to skipped from the same dag run.
If this instance has a task_id attribute, store the list of skipped task IDs to XCom so that NotPreviouslySkippedDep knows these tasks should be skipped when they are cleared.
- Parameters
dag_run – the DagRun for which to set the tasks to skipped
execution_date – execution_date
tasks – tasks to skip (not task_ids)
session – db session to use
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skip_all_except
(self, ti: TaskInstance, branch_task_ids: Union[str, Iterable[str]])[source]¶ This method implements the logic for a branching operator; given a single task ID or list of task IDs to follow, this skips all other tasks immediately downstream of this operator.
branch_task_ids is stored to XCom so that NotPreviouslySkippedDep knows skipped tasks or newly added tasks should be skipped when they are cleared.
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