NAME

RDF::Query::Algebra::Union - Algebra class for Union patterns

VERSION

This document describes RDF::Query::Algebra::Union version 2.201, released 30 January 2010.

new ( $left, $right ): Returns a new Union structure.
construct_args: Returns a list of arguments that, passed to this class' constructor, will produce a clone of this algebra pattern.
first: Returns the first pattern (LHS) of the union.
second: Returns the second pattern (RHS) of the union.
patterns: Returns the two patterns belonging to the UNION pattern.
sse: Returns the SSE string for this alegbra expression.
as_sparql: Returns the SPARQL string for this alegbra expression.
type: Returns the type of this algebra expression.
referenced_variables: Returns a list of the variable names used in this algebra expression.
binding_variables: Returns a list of the variable names used in this algebra expression that will bind values during execution.
definite_variables: Returns a list of the variable names that will be bound after evaluating this algebra expression.
fixup ( $query, $bridge, $base, \%namespaces ): Returns a new pattern that is ready for execution using the given bridge. This method replaces generic node objects with bridge-native objects.

Gregory Todd Williams <gwilliams@cpan.org>

To install RDF::Query, copy and paste the appropriate command in to your terminal.

cpanm RDF::Query

perl -MCPAN -e shell
install RDF::Query

For more information on module installation, please visit the detailed CPAN module installation guide.

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