public class AggCount extends AggregatorBase
Constructor and Description |
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AggCount() |
Modifier and Type | Method and Description |
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String |
asSparqlExpr(SerializationContext sCxt)
Format as an (extended) SPARQL expression
|
Aggregator |
copy(ExprList expr) |
Accumulator |
createAccumulator()
Create an accumulator for this aggregator
|
boolean |
equals(Object other) |
Expr |
getExpr()
Many aggergate use a single expression.
|
Node |
getValueEmpty()
Value if there are no elements in any group : return null for no result
|
int |
hashCode() |
String |
toPrefixString() |
String |
toString() |
copyTransform, getExprList, getName, getValue, key
public Aggregator copy(ExprList expr)
public Expr getExpr()
AggregatorBase
public Accumulator createAccumulator()
Aggregator
createAccumulator
in interface Aggregator
createAccumulator
in class AggregatorBase
public String asSparqlExpr(SerializationContext sCxt)
Aggregator
asSparqlExpr
in interface Aggregator
asSparqlExpr
in class AggregatorBase
public String toString()
toString
in class AggregatorBase
public String toPrefixString()
toPrefixString
in interface Aggregator
toPrefixString
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(Object other)
equals
in interface Aggregator
equals
in class AggregatorBase
Licenced under the Apache License, Version 2.0