---
name: "RDF::Query::Expression::Unary"
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::Unary"
---

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

Class for unary expressions

## NAME

RDF::Query::Expression::Unary - Class for unary expressions

## VERSION

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

## METHODS

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

- "sse"

  Returns the SSE string for this algebra expression.

- "as\_sparql"

  Returns the SPARQL string for this algebra expression.

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

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

## AUTHOR

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