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RDF::QUERY::PLAN - reference manual online

Executable query plan nodes.

Chapter
2015-10-16
RDF::Query::Plan(3pm)          User Contributed Perl Documentation          RDF::Query::Plan(3pm)

NAME RDF::Query::Plan - Executable query plan nodes.
VERSION This document describes RDF::Query::Plan version 2.916.
METHODS "new" "execute ( $execution_context )" "next" "get_all" Returns all remaining rows. "close" "state ( [ $state ] )" Returns the current state of the plan (either READY, OPEN, or CLOSED). If $state is provided, updates the plan to a new state. "logging_keys" "explain" Returns a string serialization of the query plan appropriate for display on the command line. "sse" "serialize" Return a serialization of the query plan. "delegate" Returns the delegate object if available. "referenced_variables" Returns a list of variable names that are referenced by this plan. "as_iterator ( $context )" Returns an RDF::Trine::Iterator object for the current (already executed) plan. "is_update" Returns true if the plan represents an update operation. "label ( $label => $value )" Sets the named $label to $value for this plan object. If no $value is given, returns the current label value, or undef if none exists. "graph_labels" "generate_plans ( $algebra, $execution_context, %args )" Returns a list of equivalent query plan objects for the given algebra object. "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. These identifiers are recognized: * 'A' - An RDF::Query::Algebra object * 'b' - A boolean integer value (0 or 1) * 'E' - An expression (either an RDF::Query::Expression object or an RDF node) * 'i' - An integer * 'J' - A valid Project node (an RDF::Query::Expression object or an Variable node) * 'N' - An RDF node * 'P' - A RDF::Query::Plan object * 'q' - A RDF::Query object * 'Q' - An RDF::Trine::Statement::Quad object * 's' - A string * 'T' - An RDF::Trine::Statement object * 'u' - A valid URI string * 'V' - A variable binding set (an object of type RDF::Query::VariableBindings) * 'w' - A bareword string * 'W' - An RDF node or wildcard ('*') * '*X' - A list of X nodes (where X is another identifier scalar) * '\X' - An array reference of X nodes (where X is another identifier scalar) "plan_node_data" Returns the data for this plan node that corresponds to the values described by the signature returned by "plan_prototype". "subplans_of_type ( $type [, $block] )" Returns a list of Plan objects matching $type (tested with "isa"). If $block is given, then matching stops descending a subtree if the current node is of type $block, continuing matching on other subtrees. This list includes the current plan object if it matches $type, and is generated in infix order.
AUTHOR Gregory Todd Williams <@cpan.org>
perl v5.20.2 2015-10-16 RDF::Query::Plan(3pm)