---
name: "RDF::Query::Expression::Function"
section: "3pm"
platform: "linux"
package: "librdf-query-perl"
version: "2.919-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/RDF::Query::Expression::Function"
---

# RDF::Query::Expression::Function(3pm)

Class for Function expressions

## NAME

RDF::Query::Expression::Function - Class for Function expressions

## VERSION

This document describes RDF::Query::Expression::Function version 2.919.

## METHODS

Beyond the methods documented below, this class inherits methods from the RDF::Query::Expression class.

- "new ( $uri, @arguments )"

  Returns a new Expr structure.

- "uri"

  Returns the URI of the function.

- "arguments"

  Returns a list of the arguments to the function.

- "sse"

  Returns the SSE string for this algebra expression.

- "as\_sparql"

  Returns the SPARQL string for this algebra expression.

- "type"

  Returns the type of this algebra expression.

- "qualify\_uris ( \\%namespaces, $base\_uri )"

  Returns a new algebra pattern where all referenced Resource nodes representing QNames (ns:local) are qualified using the supplied `%namespaces`.

- "evaluate ( $query, \\%bound, $context )"

  Evaluates the expression using the supplied bound variables. Will return a RDF::Query::Node object.

## AUTHOR

```
 Gregory Todd Williams <gwilliams@cpan.org>
```