Package org.eclipse.rdf4j.query.algebra.evaluation.iterator
Implementations of
Iteration
relevant to query evaluation.-
Class Summary Class Description BadlyDesignedLeftJoinIterator BindingSetHashKey Compact and efficient representation of a binding set for use as a key in hash maps.CrossProductIteration Iteration which forms the cross product of a list of materialized input bindings with each result obtained from the inner iteration.DescribeIteration Iteration that implements a simplified version of Symmetric Concise Bounded Description (omitting reified statements).ExtensionIterator FilterIterator FilterIterator.RetainedVariableFilteredQueryEvaluationContext This is used to make sure that no variable is seen by the filter that are not in scope.GroupIterator HashJoinIteration Generic hash join implementation suitable for use by Sail implementations.JoinIterator Interleaved join iterator.LeftJoinIterator MultiProjectionIterator OrderIterator Sorts the input and optionally applies limit and distinct.PathIteration PathIteration.ValuePair ProjectionIterator QueryContextIteration Makes aQueryContext
available during iteration.SPARQLMinusIteration An Iteration that returns the results of an Iteration (the left argument) MINUS any results that are compatible with results of another Iteration (the right argument) or that have no shared variables.ZeroLengthPathIteration