Module org.apache.jena.arq

Package org.apache.jena.sparql.expr.aggregate

Class AggCountVar

java.lang.Object

org.apache.jena.sparql.expr.aggregate.AggregatorBase

org.apache.jena.sparql.expr.aggregate.AggCountVar

All Implemented Interfaces:

Aggregator

public class AggCountVar
extends AggregatorBase

Constructor Summary

Constructors

Constructor	Description
AggCountVar(Expr expr)

Method Summary

Modifier and Type	Method	Description
Aggregator	copy(ExprList expr)
Accumulator	createAccumulator()	Create an accumulator for this aggregator
boolean	equals(Aggregator other, boolean bySyntax)	Consider this 'protected'
org.apache.jena.graph.Node	getValueEmpty()	Value if there are no groups : return null for no result
int	hashCode()

Methods inherited from class org.apache.jena.sparql.expr.aggregate.AggregatorBase

asSparqlExpr, copyTransform, equals, getExprList, getName, getValue, key, toPrefixString, toString

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Details

AggCountVar

public AggCountVar(Expr expr)

Method Details

copy

public Aggregator copy(ExprList expr)

createAccumulator

public Accumulator createAccumulator()

Description copied from interface: Aggregator

Create an accumulator for this aggregator

Specified by:

createAccumulator in interface Aggregator

Specified by:

createAccumulator in class AggregatorBase

hashCode

public int hashCode()

Specified by:

hashCode in interface Aggregator

Specified by:

hashCode in class AggregatorBase

equals

public boolean equals(Aggregator other,
 boolean bySyntax)

Description copied from interface: Aggregator

Consider this 'protected'

getValueEmpty

public org.apache.jena.graph.Node getValueEmpty()

Description copied from interface: Aggregator

Value if there are no groups : return null for no result

Specified by:

getValueEmpty in interface Aggregator

Specified by:

getValueEmpty in class AggregatorBase