Udo Kohlmeyer created GEODE-9077:
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Summary: GFSH commands invoke functions using execute(Function)
rather than execute(ID)
Key: GEODE-9077
URL: https://issues.apache.org/jira/browse/GEODE-9077
Project: Geode
Issue Type: Improvement
Components: gfsh
Reporter: Udo Kohlmeyer
GFSH currently executes functions using the method, `execute(Function)` rather
than a more acceptable `execute(ID)`.
In both cases the function is required to be on the server-side, BUT the main
difference is that for the first case the function does not need to be
registered. Which makes no sense, as the function as to be present on the
server side.
This approach makes it difficult to move functions (package) or replace them
with better versions at runtime, as the function versions have to match up for
it to be able to deserialize correctly.
In the approach of `execute(ID)` the problem exists that the functions need to
be registered which means that possibly they might become "public" when listing
them with `list functions`.
But the benefits are larger, as they are registered by name and thus invocation
from the client side is against the ID and not the Function itself. In
addition, this approach allows for the updating of the function, without having
to update the client, as the implementation does not have to live in GFSH.
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