Package org.topbraid.shacl.arq

Class SHACLARQFunction

java.lang.Object

org.topbraid.shacl.arq.SHACLARQFunction

All Implemented Interfaces:

org.apache.jena.sparql.function.Function, org.apache.jena.sparql.function.FunctionFactory, DeclarativeFunctionFactory, OptionalArgsFunction

Direct Known Subclasses:

SHACLSPARQLARQFunction

public abstract class SHACLARQFunction
extends Object
implements org.apache.jena.sparql.function.Function, OptionalArgsFunction, DeclarativeFunctionFactory

An ARQ function that is based on a SHACL function definition.

Author:

Holger Knublauch

Field Summary

Fields

Modifier and Type	Field	Description
protected List<String>	paramNames

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	SHACLARQFunction(SHFunction shaclFunction)	Constructs a new SHACLARQFunction based on a given sh:Function.

Method Summary

Modifier and Type	Method	Description
protected void	addParameters(SHParameterizable parameterizable)
void	build(String uri, org.apache.jena.sparql.expr.ExprList args)
org.apache.jena.sparql.function.Function	create(String uri)
org.apache.jena.sparql.expr.NodeValue	exec(org.apache.jena.sparql.engine.binding.Binding binding, org.apache.jena.sparql.expr.ExprList args, String uri, org.apache.jena.sparql.function.FunctionEnv env)
abstract org.apache.jena.sparql.expr.NodeValue	executeBody(org.apache.jena.query.Dataset dataset, org.apache.jena.rdf.model.Model model, org.apache.jena.query.QuerySolution bindings)
String[]	getParamNames()	Gets the names of the declared parameters, in order from left to right.
protected abstract String	getQueryString()
SHFunction	getSHACLFunction()	Gets the underlying sh:Function Model object for this ARQ function.
boolean	isOptionalArg(int index)

Methods inherited from class java.lang.Object

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

Field Detail

paramNames

protected List<String> paramNames

Constructor Detail

SHACLARQFunction

protected SHACLARQFunction(SHFunction shaclFunction)

Constructs a new SHACLARQFunction based on a given sh:Function. The shaclFunction must be associated with the Model containing the triples of its definition.

Parameters:

shaclFunction - the SHACL function

Method Detail

addParameters

protected void addParameters(SHParameterizable parameterizable)

build

public void build(String uri,
                  org.apache.jena.sparql.expr.ExprList args)

Specified by:

build in interface org.apache.jena.sparql.function.Function

create

public org.apache.jena.sparql.function.Function create(String uri)

Specified by:

create in interface org.apache.jena.sparql.function.FunctionFactory

exec

public org.apache.jena.sparql.expr.NodeValue exec(org.apache.jena.sparql.engine.binding.Binding binding,
                                                  org.apache.jena.sparql.expr.ExprList args,
                                                  String uri,
                                                  org.apache.jena.sparql.function.FunctionEnv env)

Specified by:

exec in interface org.apache.jena.sparql.function.Function

executeBody

public abstract org.apache.jena.sparql.expr.NodeValue executeBody(org.apache.jena.query.Dataset dataset,
                                                                  org.apache.jena.rdf.model.Model model,
                                                                  org.apache.jena.query.QuerySolution bindings)

getQueryString

protected abstract String getQueryString()

getSHACLFunction

public SHFunction getSHACLFunction()

Gets the underlying sh:Function Model object for this ARQ function.

Returns:

the sh:Function (may be null)

getParamNames

public String[] getParamNames()

Gets the names of the declared parameters, in order from left to right.

Returns:

the parameter names

isOptionalArg

public boolean isOptionalArg(int index)

Specified by:

isOptionalArg in interface OptionalArgsFunction