org.teiid

Interface UserDefinedAggregate<T>

Type Parameters:

T -

public interface UserDefinedAggregate<T>

Interface to be implemented by a user defined aggregate function.

Method Summary

Modifier and Type	Method and Description
T	getResult(CommandContext commandContext) Called to get the current value.
void	reset() Called when state from the current partition can be forgotten

Method Detail

reset

void reset()

Called when state from the current partition can be forgotten

getResult

T getResult(CommandContext commandContext)

Called to get the current value. May be called multiple times in the same partition for windowed aggregates.

Parameters:

commandContext -

Returns: