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

Class ElementTransformer

java.lang.Object

org.apache.jena.sparql.syntax.syntaxtransform.ElementTransformer

public class ElementTransformer
extends java.lang.Object

A bottom-up application of a transformation of SPARQL syntax Elements. QueryTransformOps.transform(org.apache.jena.query.Query, java.util.Map<org.apache.jena.sparql.core.Var, ? extends org.apache.jena.graph.Node>) provides the mechanism to apply to a Query.

See Also:

ElementTransformCopyBase, UpdateTransformOps.transform(org.apache.jena.update.Update, java.util.Map<org.apache.jena.sparql.core.Var, org.apache.jena.graph.Node>)

Method Summary

Modifier and Type	Method	Description
static ElementTransformer	get()	Get the current transformer
static void	set(ElementTransformer value)	Set the current transformer - use with care
static Element	transform(Element element, ElementTransform transform)	Transform an algebra expression
static Element	transform(Element element, ElementTransform transform, ExprTransform exprTransform)	Transformation with specific ElementTransform and ExprTransform
static Element	transform(Element element, ElementTransform transform, ExprTransform exprTransform, ElementVisitor beforeVisitor, ElementVisitor afterVisitor)

Methods inherited from class java.lang.Object

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

Method Detail

get

public static ElementTransformer get()

Get the current transformer

set

public static void set(ElementTransformer value)

Set the current transformer - use with care

transform

public static Element transform(Element element,
                                ElementTransform transform)

Transform an algebra expression

transform

public static Element transform(Element element,
                                ElementTransform transform,
                                ExprTransform exprTransform)

Transformation with specific ElementTransform and ExprTransform

transform

public static Element transform(Element element,
                                ElementTransform transform,
                                ExprTransform exprTransform,
                                ElementVisitor beforeVisitor,
                                ElementVisitor afterVisitor)