1RDF::Query::Plan::ServiUcsee(r3)Contributed Perl DocumenRtDaFt:i:oQnuery::Plan::Service(3)
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NAME

6       RDF::Query::Plan::Service - Executable query plan for remote SPARQL
7       queries.
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VERSION

10       This document describes RDF::Query::Plan::Service version 2.918.
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METHODS

13       Beyond the methods documented below, this class inherits methods from
14       the RDF::Query::Plan class.
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16       "new ( $endpoint, $plan, $silent, $sparql, [ \%logging_keys ] )"
17           Returns a new SERVICE (remote endpoint call) query plan object.
18           "<$endpoint"> is the URL of the endpoint (as a node object).
19           "<$plan"> is the query plan representing the query to be sent to
20           the remote endpoint (needed for cost estimates). "<$sparql"> is the
21           serialized SPARQL query to be sent to the remote endpoint. Finally,
22           if present, "<%logging_keys"> is a HASH containing the keys to use
23           in logging the execution of this plan. Valid HASH keys are:
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25            * bf - The bound/free string representing C<<$plan>>
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27       "new_from_plan ( $endpoint, $plan, $context )"
28           Returns a new SERVICE query plan object. "<$endpoint"> is the URL
29           of the endpoint (as a string). "<$plan"> is the query plan
30           representing the query to be sent to the remote endpoint. The exact
31           SPARQL serialization that will be used is obtained by getting the
32           originating RDF::Query::Algebra object from "<$plan">, and
33           serializing it (with the aid of the RDF::Query::ExecutionContext
34           object "<$context">).
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36       "execute ( $execution_context )"
37       "next"
38       "close"
39       "endpoint"
40       "sparql"
41           Returns the SPARQL query (as a string) that will be sent to the
42           remote endpoint.
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44       "lhs"
45       "silent"
46           Returns a boolean value indicating whether the service plan will
47           ignore errors.
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49       "pattern"
50           Returns the query plan that will be used in the remote service
51           call.
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53       "distinct"
54           Returns true if the pattern is guaranteed to return distinct
55           results.
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57       "ordered"
58           Returns true if the pattern is guaranteed to return ordered
59           results.
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61       "plan_node_name"
62           Returns the string name of this plan node, suitable for use in
63           serialization.
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65       "plan_prototype"
66           Returns a list of scalar identifiers for the type of the content
67           (children) nodes of this plan node. See RDF::Query::Plan for a list
68           of the allowable identifiers.
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70       "plan_node_data"
71           Returns the data for this plan node that corresponds to the values
72           described by the signature returned by "plan_prototype".
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74       "graph ( $g )"
75       "explain"
76           Returns a string serialization of the query plan appropriate for
77           display on the command line.
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AUTHOR

80        Gregory Todd Williams <gwilliams@cpan.org>
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84perl v5.38.0                      2023-07-21      RDF::Query::Plan::Service(3)
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