Package org.apache.vxquery.runtime.functions.step

Class DescendantOrSelfPathStepUnnestingEvaluator

java.lang.Object

org.apache.vxquery.runtime.functions.base.AbstractTaggedValueArgumentUnnestingEvaluator

org.apache.vxquery.runtime.functions.step.DescendantOrSelfPathStepUnnestingEvaluator

All Implemented Interfaces:

org.apache.hyracks.algebricks.runtime.base.IUnnestingEvaluator

public class DescendantOrSelfPathStepUnnestingEvaluator
extends AbstractTaggedValueArgumentUnnestingEvaluator

Field Summary

Fields inherited from class org.apache.vxquery.runtime.functions.base.AbstractTaggedValueArgumentUnnestingEvaluator

ppool, tvps

Constructor Summary

Constructors

Constructor	Description
DescendantOrSelfPathStepUnnestingEvaluator(org.apache.hyracks.api.context.IHyracksTaskContext ctx, org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator[] args)

Method Summary

Modifier and Type	Method	Description
protected void	init(TaggedValuePointable[] args)
boolean	step(org.apache.hyracks.data.std.api.IPointable result)

Methods inherited from class org.apache.vxquery.runtime.functions.base.AbstractTaggedValueArgumentUnnestingEvaluator

init

Methods inherited from class java.lang.Object

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

Constructor Detail

DescendantOrSelfPathStepUnnestingEvaluator

public DescendantOrSelfPathStepUnnestingEvaluator(org.apache.hyracks.api.context.IHyracksTaskContext ctx,
                                                  org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator[] args)

Method Detail

step

public boolean step(org.apache.hyracks.data.std.api.IPointable result)
             throws org.apache.hyracks.algebricks.common.exceptions.AlgebricksException

Throws:

org.apache.hyracks.algebricks.common.exceptions.AlgebricksException

init

protected void init(TaggedValuePointable[] args)
             throws SystemException

Specified by:

init in class AbstractTaggedValueArgumentUnnestingEvaluator

Throws:

SystemException