Attean::API::Binding - Name to term bindings
This document describes Attean::API::Binding version 0.008
The Attean::API::Binding role defines a common API for all objects that map names to Attean::API::Term objects. This includes triples, quads, and SPARQL results (variable bindings).
Classes consuming this role must provide the following methods:
value( $name )
Returns the Attean::API::Term object mapped to the variable named $name, or undef if no such term is mapped.
$name
undef
variables
Returns a list of the variable names mapped to Attean::API::Term objects in this mapping.
apply_map( $mapper )
Returns a new mapping object (of the same class as the referent) with term objects rewritten using the supplied Attean::Mapper object $mapper.
$mapper
This role provides default implementations of the following methods:
mapping
Returns a HASH mapping variable names to Attean::API::Term objects.
values
Returns a list of Attean::API::Term objects corresponding to the variable names returned by the referent's variables method.
tuples_string
Returns a string serialization of the Attean::API::Term objects in the order they are returned by the referent's values method.
as_string
Returns a string serialization of the variable bindings.
has_blanks
Returns true if any variable is bound to an Attean::API::Blank term, false otherwise.
Please report any bugs or feature requests to through the GitHub web interface at https://github.com/kasei/attean/issues.
http://www.perlrdf.org/
Gregory Todd Williams <gwilliams@cpan.org>
<gwilliams@cpan.org>
Copyright (c) 2014 Gregory Todd Williams. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
To install Attean, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Attean
CPAN shell
perl -MCPAN -e shell install Attean
For more information on module installation, please visit the detailed CPAN module installation guide.