#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>

CONTENTS