NAME

RDF::Query::Plan::Exists - Executable query plan for EXISTS blocks.

VERSION

This document describes RDF::Query::Plan::Exists version 2.902.

new ( $plan, $exists_plan, $not_flag )
execute ( $execution_context )
next
close
pattern: Returns the query plan that will be used to produce the data to be filtered.
exists_pattern: Returns the query plan that will be used as the negated pattern.
not_flag: Returns true if the EXISTS plan represents a negative query (NOT EXISTS).
distinct: Returns true if the pattern is guaranteed to return distinct results.
ordered: Returns true if the pattern is guaranteed to return ordered results.
plan_node_name: Returns the string name of this plan node, suitable for use in serialization.
plan_prototype: Returns a list of scalar identifiers for the type of the content (children) nodes of this plan node. See RDF::Query::Plan for a list of the allowable identifiers.
plan_node_data: Returns the data for this plan node that corresponds to the values described by the signature returned by plan_prototype.

Gregory Todd Williams <gwilliams@cpan.org>

To install RDF::Query, copy and paste the appropriate command in to your terminal.

cpanm RDF::Query

perl -MCPAN -e shell
install RDF::Query

For more information on module installation, please visit the detailed CPAN module installation guide.

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