Package org.apache.vxquery.runtime.functions.node

Class AbstractNodePositionalCheckEvaluator

java.lang.Object

org.apache.vxquery.runtime.functions.base.AbstractTaggedValueArgumentScalarEvaluator

org.apache.vxquery.runtime.functions.node.AbstractNodePositionalCheckEvaluator

All Implemented Interfaces:

org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator

Direct Known Subclasses:

OpNodeAfterEvaluator, OpNodeBeforeEvaluator

public abstract class AbstractNodePositionalCheckEvaluator
extends AbstractTaggedValueArgumentScalarEvaluator

Field Summary

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

ppool

Constructor Summary

Constructors

Constructor	Description
AbstractNodePositionalCheckEvaluator(org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator[] args)

Method Summary

Modifier and Type	Method	Description
protected void	evaluate(TaggedValuePointable[] args, org.apache.hyracks.data.std.api.IPointable result)
protected abstract boolean	nodeCompare(int firstId, int secondId)

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

evaluate

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractNodePositionalCheckEvaluator

public AbstractNodePositionalCheckEvaluator(org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator[] args)

Method Detail

evaluate

protected void evaluate(TaggedValuePointable[] args,
                        org.apache.hyracks.data.std.api.IPointable result)
                 throws SystemException

Specified by:

evaluate in class AbstractTaggedValueArgumentScalarEvaluator

Throws:

SystemException

nodeCompare

protected abstract boolean nodeCompare(int firstId,
                                       int secondId)