org.eclipse.rdf4j.query.algebra.evaluation.function.string

Class Concat

java.lang.Object

org.eclipse.rdf4j.query.algebra.evaluation.function.string.Concat

All Implemented Interfaces:

Function

public class Concat
extends Object
implements Function

The SPARQL built-in Function CONCAT, as defined in SPARQL Query Language for RDF

Author:

Jeen Broekstra

Constructor Summary

Constructors

Constructor and Description
Concat()

Method Summary

Modifier and Type	Method and Description
Literal	evaluate(ValueFactory valueFactory, 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

Constructor Detail

Concat

public Concat()

Method Detail

getURI

public String getURI()

Specified by:

getURI in interface Function

evaluate

public Literal evaluate(ValueFactory valueFactory,
                        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:

valueFactory - a ValueFactory to use for producing the function result.

args - the function input arguments.

Returns:

the function result value.

Throws:

ValueExprEvaluationException