1RDF::Query::Algebra::SeUrsveirceC(o3n)tributed Perl DocuRmDeFn:t:aQtuieorny::Algebra::Service(3)
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6 RDF::Query::Algebra::Service - Algebra class for SERVICE (federation)
7 patterns
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10 This document describes RDF::Query::Algebra::Service version 2.918.
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13 Beyond the methods documented below, this class inherits methods from
14 the RDF::Query::Algebra class.
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16 "new ( $endpoint, $pattern, $silent )"
17 Returns a new Service structure.
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19 "construct_args"
20 Returns a list of arguments that, passed to this class'
21 constructor, will produce a clone of this algebra pattern.
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23 "endpoint"
24 Returns the endpoint resource of the named graph expression.
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26 "pattern"
27 Returns the graph pattern of the named graph expression.
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29 "silent"
30 Returns true if the service operation is to ignore errors during
31 execution.
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33 "lhs"
34 If the SERVCE operation uses a variable endpoint, then it is
35 considered a binary operator, executing the left-hand-side pattern
36 first, and using results from it to bind endpoint URL values to use
37 in SERVICE evaluation.
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39 "sse"
40 Returns the SSE string for this algebra expression.
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42 "as_sparql"
43 Returns the SPARQL string for this algebra expression.
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45 "as_hash"
46 Returns the query as a nested set of plain data structures (no
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49 "type"
50 Returns the type of this algebra expression.
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52 "referenced_variables"
53 Returns a list of the variable names used in this algebra
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56 "potentially_bound"
57 Returns a list of the variable names used in this algebra
58 expression that will bind values during execution.
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60 "definite_variables"
61 Returns a list of the variable names that will be bound after
62 evaluating this algebra expression.
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64 "qualify_uris ( \%namespaces, $base_uri )"
65 Returns a new algebra pattern where all referenced Resource nodes
66 representing QNames (ns:local) are qualified using the supplied
67 %namespaces.
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70 Gregory Todd Williams <gwilliams@cpan.org>
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74perl v5.38.0 2023-07-21 RDF::Query::Algebra::Service(3)