org.topbraid.shacl.expr

Class AbstractSPARQLExpression

java.lang.Object

org.topbraid.shacl.expr.AbstractNodeExpression

org.topbraid.shacl.expr.ComplexNodeExpression

org.topbraid.shacl.expr.AbstractInputExpression

org.topbraid.shacl.expr.AbstractSPARQLExpression

All Implemented Interfaces:

NodeExpression

Direct Known Subclasses:

AskExpression, SelectExpression

public abstract class AbstractSPARQLExpression
extends AbstractInputExpression

Node expressions based on a SPARQL query, identified by sh:select or sh:ask. This node expression type is not part of the SHACL-AF 1.0 document, but a candidate for 1.1.

Author:

Holger Knublauch

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractSPARQLExpression(org.apache.jena.rdf.model.Resource expr, org.apache.jena.query.Query query, NodeExpression input, String queryString)

Method Summary

Modifier and Type	Method and Description
org.apache.jena.util.iterator.ExtendedIterator<org.apache.jena.rdf.model.RDFNode>	eval(org.apache.jena.rdf.model.RDFNode focusNode, NodeExpressionContext context) Produces an iterator of value nodes for a given focus node.
List<String>	getFunctionalSyntaxArguments()
String	getQueryString()

Methods inherited from class org.topbraid.shacl.expr.AbstractInputExpression

evalInput, getInput, getInputExpressions

Methods inherited from class org.topbraid.shacl.expr.ComplexNodeExpression

getFunctionalSyntax, getFunctionalSyntaxName

Methods inherited from class org.topbraid.shacl.expr.AbstractNodeExpression

evalReverse, getOutputShape, getRDFNode, isReversible, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.topbraid.shacl.expr.NodeExpression

getTypeId, visit

Constructor Detail

AbstractSPARQLExpression

protected AbstractSPARQLExpression(org.apache.jena.rdf.model.Resource expr,
                                   org.apache.jena.query.Query query,
                                   NodeExpression input,
                                   String queryString)

Method Detail

eval

public org.apache.jena.util.iterator.ExtendedIterator<org.apache.jena.rdf.model.RDFNode> eval(org.apache.jena.rdf.model.RDFNode focusNode,
                                                                                              NodeExpressionContext context)

Description copied from interface: NodeExpression

Produces an iterator of value nodes for a given focus node.

Parameters:

focusNode - the focus node

context - the context

Returns:

an iterator (never null)

getFunctionalSyntaxArguments

public List<String> getFunctionalSyntaxArguments()

Overrides:

getFunctionalSyntaxArguments in class AbstractInputExpression

getQueryString

public String getQueryString()