AggregateOperator (Eclipse RDF4J 5.0.0-M2)

All Superinterfaces:: Cloneable, QueryModelNode, Serializable, ValueExpr

All Known Implementing Classes:: AbstractAggregateOperator, AggregateFunctionCall, Avg, Count, GroupConcat, Max, Min, Sample, Sum

public interface AggregateOperator extends ValueExpr

An operator that returns aggregates values.

Author:: David Huynh

Method Summary

Modifier and Type

Method

Description

AggregateOperator

clone()

Returns a (deep) clone of this query model node.

boolean

isDistinct()

void

setDistinct(boolean distinct)

Methods inherited from interface org.eclipse.rdf4j.query.algebra.QueryModelNode
equals, getCostEstimate, getParentNode, getResultSizeActual, getResultSizeEstimate, getSignature, getTotalTimeNanosActual, replaceChildNode, replaceWith, setCostEstimate, setParentNode, setResultSizeActual, setResultSizeEstimate, setTotalTimeNanosActual, toString, visit, visitChildren

Method Details
- isDistinct
  
  boolean isDistinct()
- setDistinct
  
  void setDistinct(boolean distinct)
- clone
  
  AggregateOperator clone()
  
  Description copied from interface: QueryModelNode
  
  Returns a (deep) clone of this query model node. This method recursively clones the entire node tree, starting from this nodes.
  
  Specified by:
  
  clone in interface QueryModelNode
  
  Specified by:
  
  clone in interface ValueExpr
  
  Returns:
  
  A deep clone of this query model node.