public class AggNull extends AggregatorBase
Constructor and Description |
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AggNull() |
Modifier and Type | Method and Description |
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Aggregator |
copy(ExprList exprs) |
static Accumulator |
createAccNull() |
Accumulator |
createAccumulator()
Create an accumulator for this aggregator
|
boolean |
equals(Aggregator other,
boolean bySyntax)
Consider this 'protected'
|
Node |
getValueEmpty()
Value if there are no elements in any group : return null for no result
|
int |
hashCode() |
asSparqlExpr, copyTransform, equals, getExprList, getName, getValue, key, toPrefixString, toString
public Aggregator copy(ExprList exprs)
public Accumulator createAccumulator()
Aggregator
createAccumulator
in interface Aggregator
createAccumulator
in class AggregatorBase
public Node getValueEmpty()
Aggregator
getValueEmpty
in interface Aggregator
getValueEmpty
in class AggregatorBase
public int hashCode()
hashCode
in interface Aggregator
hashCode
in class AggregatorBase
public boolean equals(Aggregator other, boolean bySyntax)
Aggregator
public static Accumulator createAccNull()
Licenced under the Apache License, Version 2.0