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RDF::Query::Plan - Executable query plan nodes.
This document describes RDF::Query::Plan version 2.918.
newexecute ( $execution_context )nextget_allReturns all remaining rows.
closestate ( [ $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_keysexplainReturns a string serialization of the query plan appropriate for display on the command line.
sseserializeReturn a serialization of the query plan.
delegateReturns the delegate object if available.
referenced_variablesReturns 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_updateReturns 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_labelsgenerate_plans ( $algebra,
$execution_context,
%args )Returns a list of equivalent query plan objects for the given algebra object.
plan_node_nameReturns the string name of this plan node, suitable for use in serialization.
plan_prototypeReturns 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_dataReturns 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.
Gregory Todd Williams <gwilliams@cpan.org>
