Provided by: libattean-perl_0.021-1_all bug


       Attean::API::Binding - Name to term bindings


       This document describes Attean::API::Binding version 0.021


       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


       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.

           Returns a list of the variable names mapped to Attean::API::Term objects in this

       "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.


       This role provides default implementations of the following methods:

           Returns a HASH mapping variable names to Attean::API::Term objects.

           Returns a list of Attean::API::Term objects corresponding to the variable names
           returned by the referent's "variables" method.

           Returns a string serialization of the Attean::API::Term objects in the order they are
           returned by the referent's "values" method.

           Returns a string serialization of the variable bindings.

           Returns true if any variable is bound to an Attean::API::Blank term, false otherwise.

           Returns tue is all the bound values consume Attean::API::Term, false otherwise.

       "values_consuming_role( $role )"
           Returns the list of bound values that consume $role.

           Returns the variables which are bound in this object.

       "apply_bindings( $binding )"
           Construct a new binding by replacing variables with their bound values from $binding.

       "parse ( $string )"
           Returns a triple or quad pattern object using the variables and/or terms parsed from
           $string in SPARQL syntax.

       "project( @keys )"
           Returns a new Attean::Result binding which contains variable-value mappings from the
           invocant for every variable name in @keys.


       Please report any bugs or feature requests to through the GitHub web interface at



       Gregory Todd Williams  "<>"


       Copyright (c) 2014--2018 Gregory Todd Williams.  This program is free software; you can
       redistribute it and/or modify it under the same terms as Perl itself.