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

Class AbstractNodeConstructorScalarEvaluator

java.lang.Object

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

org.apache.vxquery.runtime.functions.node.AbstractNodeConstructorScalarEvaluator

All Implemented Interfaces:

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

Direct Known Subclasses:

AttributeNodeConstructorScalarEvaluator, CommentNodeConstructorScalarEvaluator, ElementNodeConstructorScalarEvaluator, PINodeConstructorScalarEvaluator, TextNodeConstructorScalarEvaluator

public abstract class AbstractNodeConstructorScalarEvaluator
extends AbstractTaggedValueArgumentScalarEvaluator

Field Summary

Fields

Modifier and Type	Field	Description
protected org.apache.hyracks.api.context.IHyracksTaskContext	ctx

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

ppool

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method	Description
protected abstract void	constructNode(DictionaryBuilder db, TaggedValuePointable[] args, org.apache.hyracks.data.std.api.IMutableValueStorage mvs)
protected abstract boolean	createsDictionary()
protected void	evaluate(TaggedValuePointable[] args, org.apache.hyracks.data.std.api.IPointable result)

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

Field Detail

ctx

protected final org.apache.hyracks.api.context.IHyracksTaskContext ctx

Constructor Detail

AbstractNodeConstructorScalarEvaluator

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

Method Detail

evaluate

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

Specified by:

evaluate in class AbstractTaggedValueArgumentScalarEvaluator

Throws:

SystemException

constructNode

protected abstract void constructNode(DictionaryBuilder db,
                                      TaggedValuePointable[] args,
                                      org.apache.hyracks.data.std.api.IMutableValueStorage mvs)
                               throws IOException,
                                      SystemException

Throws:

IOException

SystemException

createsDictionary

protected abstract boolean createsDictionary()