RDF::Core::Evaluator - gets a query object that RDF::Core::Query parsed and evaluates the query.

- NAME
- SYNOPSIS
- DESCRIPTION

- Interface

- LICENSE
- AUTHOR
- SEE ALSO

# NAME

RDF::Core::Evaluator - gets a query object that RDF::Core::Query parsed and evaluates the query.

# SYNOPSIS

      my %namespaces = (Default => 'http://myApp.gingerall.org/ns#',
                        ns     => 'http://myApp.gingerall.org/ns#',
                       );
      my $evaluator = new RDF::Core::Evaluator
        (Model => $model,            #an instance of RDF::Core::Model
         Factory => $factory,        #an instance of RDF::Core::NodeFactory
         Namespaces => \%namespaces,
        );
      my $query = new RDF::Core::Query(Evaluator=> $evaluator);

# DESCRIPTION

The evaluator is just to be created and passed to query object, that uses it to evaluate the query.

## Interface

- `new(%options)`
Available options are:

- Model
RDF::Core::Model object that contains data to be queried.

- Functions
RDF::Core::Function object is a functions library.

- Factory
RDF::Core::NodeFactory object, that produces resource and literal objects.

- Namespaces
A hash containing namespace prefixes as keys and URIs as values. See more in paragraph Names and URIs in RDF::Core::Query,

- Row
A code reference that is called every time a result row is found. The row elements are passed as parameters of the call. They can be undefined, RDF::Core::Resource or RDF::Core::Literal value. If Row is omitted, result is returned as a reference to array of rows

# LICENSE

This package is subject to the MPL (or the GPL alternatively).

# AUTHOR

Ginger Alliance, rdf@gingerall.cz

# SEE ALSO

RDF::Core::Query