Package com.eccenca.access_control.triple_based.core

Class ElementTransformTripleRewrite

java.lang.Object

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

com.eccenca.access_control.triple_based.core.ElementTransformTripleBasedRewrite

com.eccenca.access_control.triple_based.core.ElementTransformTripleRewrite

All Implemented Interfaces:

ElementTransform

public class ElementTransformTripleRewrite
extends ElementTransformTripleBasedRewrite

Field Summary

Fields

Modifier and Type	Field	Description
protected GenericLayer	genericLayer
protected PathRewriter	pathRewriter
protected int	triplePatternCounter
protected org.aksw.commons.collections.generator.Generator<org.apache.jena.sparql.core.Var>	varGen

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

alwaysCopy

Constructor Summary

Constructors

Constructor	Description
ElementTransformTripleRewrite(GenericLayer genericLayer)
ElementTransformTripleRewrite(GenericLayer genericLayer, org.aksw.commons.collections.generator.Generator<org.apache.jena.sparql.core.Var> varGen)

Method Summary

Modifier and Type	Method	Description
static org.apache.jena.sparql.syntax.Element	applyTransform(org.apache.jena.graph.Triple triple, Fragment3 filter, org.aksw.commons.collections.PolaritySet<org.apache.jena.sparql.engine.binding.Binding> valueSet, org.aksw.commons.collections.generator.Generator<org.apache.jena.sparql.core.Var> varGen)	Returns null if no transformation needed to be applied
org.apache.jena.sparql.syntax.Element	applyTriplePathTransform(org.apache.jena.sparql.core.TriplePath tp)
org.apache.jena.sparql.syntax.Element	applyTripleTransform(org.apache.jena.graph.Triple t)
static org.apache.jena.sparql.core.Var	prefixVar(String prefix, org.apache.jena.sparql.core.Var var)
static String	prefixVarName(String prefix, String name)	Prefix a var name while being aware of special prefixes by the jena system.
static org.apache.jena.query.Query	transform(org.apache.jena.query.Query query, GenericLayer conceptLayer, boolean cloneOnChange)
static org.apache.jena.sparql.syntax.Element	transform(org.apache.jena.sparql.syntax.Element element, GenericLayer conceptLayer)

Methods inherited from class com.eccenca.access_control.triple_based.core.ElementTransformTripleBasedRewrite

transform, transform, valueSetToExpr

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, transform

Methods inherited from class java.lang.Object

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

Field Details

triplePatternCounter

protected int triplePatternCounter

genericLayer

protected GenericLayer genericLayer

varGen

protected org.aksw.commons.collections.generator.Generator<org.apache.jena.sparql.core.Var> varGen

pathRewriter

protected transient PathRewriter pathRewriter

Constructor Details

ElementTransformTripleRewrite

public ElementTransformTripleRewrite(GenericLayer genericLayer)

ElementTransformTripleRewrite

public ElementTransformTripleRewrite(GenericLayer genericLayer,
 org.aksw.commons.collections.generator.Generator<org.apache.jena.sparql.core.Var> varGen)

Method Details

applyTriplePathTransform

public org.apache.jena.sparql.syntax.Element applyTriplePathTransform(org.apache.jena.sparql.core.TriplePath tp)

Specified by:

applyTriplePathTransform in class ElementTransformTripleBasedRewrite

Returns:

A substituting element for the argument or null to retain the original TriplePath

prefixVarName

public static String prefixVarName(String prefix,
 String name)

Prefix a var name while being aware of special prefixes by the jena system. For example, in the query syntax, a blank node denoted by '[]' is converted into a variable of the form '?0'

Parameters:

prefix - The prefix to prepend

name - The variable name

Returns:

A var name with a valid serialization by Jena (if the prefix was valid)

prefixVar

public static org.apache.jena.sparql.core.Var prefixVar(String prefix,
 org.apache.jena.sparql.core.Var var)

applyTripleTransform

public org.apache.jena.sparql.syntax.Element applyTripleTransform(org.apache.jena.graph.Triple t)

Specified by:

applyTripleTransform in class ElementTransformTripleBasedRewrite

Returns:

A substituting element for the argument or null to retain the original Triple

applyTransform

public static org.apache.jena.sparql.syntax.Element applyTransform(org.apache.jena.graph.Triple triple,
 Fragment3 filter,
 org.aksw.commons.collections.PolaritySet<org.apache.jena.sparql.engine.binding.Binding> valueSet,
 org.aksw.commons.collections.generator.Generator<org.apache.jena.sparql.core.Var> varGen)

Returns null if no transformation needed to be applied

Parameters:

triple -

filter -

varGen -

Returns:

transform

public static org.apache.jena.query.Query transform(org.apache.jena.query.Query query,
 GenericLayer conceptLayer,
 boolean cloneOnChange)

transform

public static org.apache.jena.sparql.syntax.Element transform(org.apache.jena.sparql.syntax.Element element,
 GenericLayer conceptLayer)