NAME

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

VERSION

       This document describes Attean::API::Binding version 0.035

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.

       sameTerms( $other )
       equals( $other )
       "blanks"
           Returns all the values in this mapping (recursively, if any values are embedded  bindings)  that  are
           blank nodes.

       "referenced_variables"
           Returns  a list of the names of any variable values that are referenced in this binding (recursively,
           if any values are embedded bindings).

       "is_ground"
           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.

       "tree_attributes"
           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.

BUGS

       Please  report  any   bugs   or   feature   requests   to   through   the   GitHub   web   interface   at
       <https://github.com/kasei/attean/issues>.

SEE ALSO

AUTHOR

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

COPYRIGHT

       Copyright  (c)  2014--2022 Gregory Todd Williams.  This program is free software; you can redistribute it
       and/or modify it under the same terms as Perl itself.

perl v5.40.0                                       2025-01-26                          Attean::API::Binding(3pm)