RDF::Query::Algebra::Union(3)
Algebra class for Union patterns
VERSION
This document describes RDF::Query::Algebra::Union version 2.916.
METHODS
Beyond the methods documented below, this class inherits methods from the
RDF::Query::Algebra class.
- "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 algebra expression.
- "as_sparql"
-
Returns the SPARQL string for this algebra expression.
- "as_hash"
-
Returns the query as a nested set of plain data structures (no objects).
- "type"
-
Returns the type of this algebra expression.
- "referenced_variables"
-
Returns a list of the variable names used in this algebra expression.
- "potentially_bound"
-
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.
