InigoSJ commented on a change in pull request #11943:
URL: https://github.com/apache/beam/pull/11943#discussion_r438952009
##########
File path: sdks/python/apache_beam/transforms/combiners.py
##########
@@ -66,8 +66,21 @@ class Mean(object):
"""Combiners for computing arithmetic means of elements."""
class Globally(ptransform.PTransform):
"""combiners.Mean.Globally computes the arithmetic mean of the elements."""
+ def __init__(self, has_defaults=True, *args, **kwargs):
+ super(Mean.Globally, self).__init__()
+ self.has_defaults = has_defaults
+ self.args = args
+ self.kwargs = kwargs
+
def expand(self, pcoll):
- return pcoll | core.CombineGlobally(MeanCombineFn())
+ if self.has_defaults:
+ return pcoll | core.CombineGlobally(MeanCombineFn())
+ else:
+ return pcoll | core.CombineGlobally(MeanCombineFn()).without_defaults()
+
+ def without_defaults(self):
+ self.has_defaults = False
Review comment:
Another way could be doing `Mean.Globally(without_defaults=True)`, but
I'd say it's against the standard use of `CombineGlobally().without_defaults()`
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
