IsTripleFunction (RDF4J: Query algebra - evaluation 4.3.6 API)

java.lang.Object
- org.eclipse.rdf4j.query.algebra.evaluation.function.triple.IsTripleFunction

All Implemented Interfaces:

Function
```
public class IsTripleFunction
extends Object
implements Function
```
Function that return "true"^^xsd:boolean if its argument is RDF-star Triple otherwise return "false"^^xsd:boolean the function's IRI uses RDF namespace to match the other functions in the package

Author:

damyan.ognyanov

Constructor Summary

Constructors
Constructor Description

IsTripleFunction()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`org.eclipse.rdf4j.model.Value`	`evaluate(org.eclipse.rdf4j.model.ValueFactory vf, org.eclipse.rdf4j.model.Value... args)`	Evaluate the function over the supplied input arguments, using the supplied `ValueFactory` to produce the result.
`String`	`getURI()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.eclipse.rdf4j.query.algebra.evaluation.function.Function
evaluate, mustReturnDifferentResult

- Constructor Detail
  - IsTripleFunction
```
public IsTripleFunction()
```
- Method Detail
  - getURI
```
public String getURI()
```
    Specified by:
    
    getURI in interface Function
  - evaluate
```
public org.eclipse.rdf4j.model.Value evaluate(org.eclipse.rdf4j.model.ValueFactory vf,
                                              org.eclipse.rdf4j.model.Value... args)
                                       throws ValueExprEvaluationException
```
    Description copied from interface: Function
    
    Evaluate the function over the supplied input arguments, using the supplied ValueFactory to produce the result.
    
    Specified by:
    
    evaluate in interface Function
    
    Parameters:
    
    vf - a ValueFactory to use for producing the function result.
    
    args - the function input arguments.
    
    Returns:
    
    the function result value.
    
    Throws:
    
    ValueExprEvaluationException