def _lock_workflow_execution(wf_exec_id):
# NOTE: Workflow execution object must be locked before
# loading the object itself into the session (either with
# 'get_XXX' or 'load_XXX' methods). Otherwise, there can be
# multiple parallel transactions that see the same state
# and hence the rest of the method logic would not be atomic.
db_api.acquire_lock(db_models.WorkflowExecution, wf_exec_id)
def _lock_workflow_execution(wf_exec_id):
# NOTE: Workflow execution object must be locked before
# loading the object itself into the session (either with
# 'get_XXX' or 'load_XXX' methods). Otherwise, there can be
# multiple parallel transactions that see the same state
# and hence the rest of the method logic would not be atomic.
db_api.acquire_lock(db_models.WorkflowExecution, wf_exec_id)
def lock_workflow_execution(wf_ex_id):
# Locks a workflow execution using the db_api.acquire_lock function.
# The method expires all session objects and returns the up-to-date
# workflow execution from the DB.
return db_api.acquire_lock(db_models.WorkflowExecution, wf_ex_id)
def lock(self):
assert self.wf_ex
return db_api.acquire_lock(db_models.WorkflowExecution, self.wf_ex.id)
def lock(self):
assert self.wf_ex
return db_api.acquire_lock(db_models.WorkflowExecution, self.wf_ex.id)
