AggregateFunction.Aggregate (apache-cassandra API)

Enclosing interface:: AggregateFunction

public static interface AggregateFunction.Aggregate

An aggregation operation.

Method Summary

Modifier and Type

Method

Description

void

addInput(Arguments arguments)

Adds the specified input to this aggregate.

ByteBuffer

compute(ProtocolVersion protocolVersion)

Computes and returns the aggregate current value.

void

reset()

Reset this aggregate.

Method Details
- addInput
  
  void addInput(Arguments arguments) throws InvalidRequestException
  
  Adds the specified input to this aggregate.
  
  Parameters:
  
  arguments - the values to add to the aggregate.
  
  Throws:
  
  InvalidRequestException
- compute
  
  ByteBuffer compute(ProtocolVersion protocolVersion) throws InvalidRequestException
  
  Computes and returns the aggregate current value.
  
  Parameters:
  
  protocolVersion - native protocol version
  
  Returns:
  
  the aggregate current value.
  
  Throws:
  
  InvalidRequestException
- reset
  
  void reset()
  
  Reset this aggregate.