Module org.apache.jena.arq

Package org.apache.jena.sparql.syntax.syntaxtransform

Class ElementTransformCleanGroupsOfOne

java.lang.Object

org.apache.jena.sparql.syntax.syntaxtransform.ElementTransformCopyBase

org.apache.jena.sparql.syntax.syntaxtransform.ElementTransformCleanGroupsOfOne

All Implemented Interfaces:

ElementTransform

public class ElementTransformCleanGroupsOfOne
extends ElementTransformCopyBase

Clean a SPARQL and ARQ syntax. This applies after using OpAsQuery.

• Unwrap groups of one where they do not matter.
• Merge adjacent ElementPathBlock

Groups of one do matter for OPTIONAL { { ?s ?p ?o FILTER(?foo) } }.

Constructor Summary

Constructors

Constructor	Description
ElementTransformCleanGroupsOfOne()

Method Summary

Modifier and Type	Method	Description
Element	transform(ElementGroup eltGroup, List<Element> elts)
Element	transform(ElementOptional eltOptional, Element transformedElt)
Element	transform(ElementUnion eltUnion, List<Element> elts)

Methods inherited from class org.apache.jena.sparql.syntax.syntaxtransform.ElementTransformCopyBase

transform, transform, transform, transform, transform, transform, transform, transform, transform, transform, transform, transform, transform, transform, transform, transform, transform, transform, transform

Methods inherited from class java.lang.Object

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

Constructor Details

ElementTransformCleanGroupsOfOne

public ElementTransformCleanGroupsOfOne()

Method Details

transform

public Element transform(ElementGroup eltGroup,
 List<Element> elts)

Specified by:

transform in interface ElementTransform

Overrides:

transform in class ElementTransformCopyBase

transform

public Element transform(ElementUnion eltUnion,
 List<Element> elts)

Specified by:

transform in interface ElementTransform

Overrides:

transform in class ElementTransformCopyBase

transform

public Element transform(ElementOptional eltOptional,
 Element transformedElt)

Specified by:

transform in interface ElementTransform

Overrides:

transform in class ElementTransformCopyBase