org.aksw.jena_sparql_api.mapper

Class AggTransform<I,O>

java.lang.Object

org.aksw.jena_sparql_api.mapper.AggTransform<I,O>

All Implemented Interfaces:

Agg<O>

public class AggTransform<I,O>
extends Object
implements Agg<O>

Constructor Summary

Constructors

Constructor and Description
AggTransform(Agg<I> subAgg, com.google.common.base.Function<I,O> transform)

Method Summary

Methods

Modifier and Type	Method and Description
static <I,O> AggTransform<I,O>	create(Agg<I> subAgg, com.google.common.base.Function<I,O> transform)
Acc<O>	createAccumulator()
Set<com.hp.hpl.jena.sparql.core.Var>	getDeclaredVars() An accumulator may declare the variable it references.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AggTransform

public AggTransform(Agg<I> subAgg,
            com.google.common.base.Function<I,O> transform)

Method Detail

createAccumulator

public Acc<O> createAccumulator()

Specified by:

createAccumulator in interface Agg<O>

getDeclaredVars

public Set<com.hp.hpl.jena.sparql.core.Var> getDeclaredVars()

Description copied from interface: Agg

An accumulator may declare the variable it references. The variables can be derived from e.g. underlying Sparql expressions or sub aggregators.

Specified by:

getDeclaredVars in interface Agg<O>

Returns:

create

public static <I,O> AggTransform<I,O> create(Agg<I> subAgg,
                             com.google.common.base.Function<I,O> transform)