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#556 Add value_serializer parameter to table and collection definit… #659

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##556 Add value_serializer parameter to table and collection definit…
degerahmet Mar 18, 2025
ce6fad4
Refactor value_serializer parameter handling in App and Collection cl…
degerahmet Mar 20, 2025
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4 changes: 3 additions & 1 deletion faust/app/base.py
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Original file line number Diff line number Diff line change
Expand Up @@ -477,7 +477,7 @@ def __init__(
# for the web server.
self._monitor = monitor

# Any additional asyncio.Task's specified using @app.task decorator.
# Any additional asyncio.Tasks specified using @app.task decorator.
self._app_tasks = []

# Called as soon as the a worker is fully operational.
Expand Down Expand Up @@ -1138,6 +1138,7 @@ def Table(
window: Optional[WindowT] = None,
partitions: Optional[int] = None,
help: Optional[str] = None,
value_serializer: str = None, # Add this line
**kwargs: Any,
) -> TableT:
"""Define new table.
Expand Down Expand Up @@ -1169,6 +1170,7 @@ def Table(
beacon=self.tables.beacon,
partitions=partitions,
help=help,
value_serializer=value_serializer, # Add this line
**kwargs,
),
)
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5 changes: 3 additions & 2 deletions faust/tables/base.py
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Expand Up @@ -124,6 +124,7 @@ def __init__(
on_window_close: Optional[WindowCloseCallback] = None,
is_global: bool = False,
synchronize_all_active_partitions: bool = False,
value_serializer: Optional[CodecArg] = None, # Add this line
**kwargs: Any,
) -> None:
Service.__init__(self, loop=app.loop, **kwargs)
Expand Down Expand Up @@ -157,7 +158,7 @@ def __init__(
# Possible values json and raw
# Fallback to json
self.key_serializer = self._serializer_from_type(self.key_type)
self.value_serializer = self._serializer_from_type(self.value_type)
self.value_serializer = value_serializer # Add this line
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@dada-engineer dada-engineer Mar 19, 2025

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why do you comment add this line everywhere? seems like a rather invaluable comment

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@degerahmet degerahmet Mar 19, 2025

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That comment made me remember what I should do. Can I remove these comments if that works for you?

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@dada-engineer dada-engineer Mar 19, 2025

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I'd recommend it as this is not useful anymore IMO

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@degerahmet degerahmet Mar 20, 2025

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Thanks, I've removed them.


# Table key expiration
self._partition_timestamp_keys = defaultdict(set)
Expand Down Expand Up @@ -199,7 +200,7 @@ def _new_store_by_url(self, url: Union[str, URL]) -> StoreT:
table_name=self.name,
key_type=self.key_type,
key_serializer=self.key_serializer,
value_serializer=self.value_serializer,
value_serializer=self.value_serializer, # Add this line
value_type=self.value_type,
loop=self.loop,
options=self.options,
Expand Down