Package org.topbraid.shacl.expr.lib

Class IfExpression

java.lang.Object

org.topbraid.shacl.expr.AbstractNodeExpression

org.topbraid.shacl.expr.ComplexNodeExpression

org.topbraid.shacl.expr.AbstractInputExpression

org.topbraid.shacl.expr.lib.IfExpression

All Implemented Interfaces:

NodeExpression

public class IfExpression
extends AbstractInputExpression

Implements support for sh:if. 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

Constructor	Description
IfExpression(org.apache.jena.rdf.model.RDFNode expr, NodeExpression input, NodeExpression then, NodeExpression else_)

Method Summary

Modifier and Type	Method	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.
NodeExpression	getElse()
List<String>	getFunctionalSyntaxArguments()
protected String	getFunctionalSyntaxName()
List<NodeExpression>	getInputExpressions()
NodeExpression	getThen()
String	getTypeId()
void	visit(NodeExpressionVisitor visitor)

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

evalInput, getInput

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

getFunctionalSyntax

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

Constructor Detail

IfExpression

public IfExpression(org.apache.jena.rdf.model.RDFNode expr,
                    NodeExpression input,
                    NodeExpression then,
                    NodeExpression else_)

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)

getElse

public NodeExpression getElse()

getFunctionalSyntaxArguments

public List<String> getFunctionalSyntaxArguments()

Overrides:

getFunctionalSyntaxArguments in class AbstractInputExpression

getFunctionalSyntaxName

protected String getFunctionalSyntaxName()

Overrides:

getFunctionalSyntaxName in class ComplexNodeExpression

getInputExpressions

public List<NodeExpression> getInputExpressions()

Specified by:

getInputExpressions in interface NodeExpression

Overrides:

getInputExpressions in class AbstractInputExpression

getThen

public NodeExpression getThen()

getTypeId

public String getTypeId()

visit

public void visit(NodeExpressionVisitor visitor)