com.pervasive.datarush.operators.group

Interface AggregatorFactory

public interface AggregatorFactory

Class responsible for creating aggregators.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o)
String	getKey() Returns the key for the aggregator used by the output flow.
int	hashCode()
Aggregator	newAggregator(List<String> inputNames, ScalarTokenType[] inputs) Create a new aggregator for the given inputs.

Method Detail

getKey

String getKey()

Returns the key for the aggregator used by the output flow. This determines the prefix to use for output names.

Returns:

the key for the aggregator used by the output flow.

newAggregator

Aggregator newAggregator(List<String> inputNames,
                         ScalarTokenType[] inputs)

Create a new aggregator for the given inputs. Factory should return the implementation appropriate for the input types.

Parameters:

inputNames - The input names; used for error reporting

inputs - The inputs to the aggregator

Returns:

a new aggregator for the given inputs

equals

boolean equals(Object o)

Overrides:

equals in class Object

hashCode

int hashCode()

Overrides:

hashCode in class Object