RDF::Query::Plan - Executable query plan nodes.
This document describes RDF::Query::Plan version 2.908.
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.
$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.
$label
$value
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.
$type
isa
$block
Gregory Todd Williams <gwilliams@cpan.org>
To install RDF::Query, copy and paste the appropriate command in to your terminal.
cpanm
cpanm RDF::Query
CPAN shell
perl -MCPAN -e shell install RDF::Query
For more information on module installation, please visit the detailed CPAN module installation guide.