NAME¶
Attean::API::Binding - Name to term bindings
VERSION¶
This document describes Attean::API::Binding version 0.002
DESCRIPTION¶
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).
REQUIRED METHODS¶
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.
- "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.
METHODS¶
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.
BUGS¶
Please report any bugs or feature requests to through the GitHub web interface
at <
https://github.com/kasei/attean/issues>.
SEE ALSO¶
<
http://www.perlrdf.org/>
AUTHOR¶
Gregory Todd Williams "<gwilliams@cpan.org>"
COPYRIGHT¶
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.