Package com.pervasive.datarush.operators.group

Provides data aggregation components.

See: Description

Interface Summary

Interface	Description
Aggregator	Interface to be implemented by implementations of aggregations; consumers of the API should generally not need to implement this interface.
AggregatorFactory	Class responsible for creating aggregators.

Class Summary

Class	Description
Aggregation	A representation of an aggregation on a specific field in a record.
Group	Performs grouping (aggregation) of sorted input data.
ReadableStorage	Storage class by which a custom aggregator can load its internals.
RemoveDuplicates	Removes duplicate rows based on a specified set of group keys.
SortedGroupHandler	Common base class for all processes that need to detect group boundaries
WriteableStorage	Storage class by which a custom aggregator can storage its internals.

Exception Summary

Exception	Description
InvalidArgumentCountException	Thrown to indicate that an aggregator was constructed with an invalid number of arguments.

Package com.pervasive.datarush.operators.group Description

Provides data aggregation components.