Dan Smith created GEODE-1577:
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Summary: Unhelpful generic types on Execution.execute
Key: GEODE-1577
URL: https://issues.apache.org/jira/browse/GEODE-1577
Project: Geode
Issue Type: Bug
Components: functions
Reporter: Dan Smith
The execute methods of the function service Execution class returns a
ResultCollector with wildcards for the type.
{code}
public ResultCollector<?, ?> execute(
Function function) throws FunctionException;
{code}
Wildcards are supposed to be used in APIs where the type doesn't matter, for
example counting the elements in a list. By returning a ResultCollector with
wildcards, we're essentially forcing the user to cast the result collector.
At a minimum they should be able to pick the type of result collector
{code}
public <T,S> ResultCollector<T, S> execute(
Function function) throws FunctionException;
{code}
But maybe it would make more sense to parameterize Execution itself. Then the
compiler could ensure that the types used by withCollector and the types used
by execute match.
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