Package | Description |
---|---|
org.eclipse.rdf4j.federated.optimizer |
Modifier and Type | Class and Description |
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class |
ExclusiveTupleExprOptimizer
A specialized optimizer which identifies and marks
ExclusiveTupleExpr . |
class |
FilterOptimizer
Filter optimizer to push down FILTER expressions as far as possible.
|
class |
GenericInfoOptimizer
Generic optimizer
Tasks: - Collect information (hasUnion, hasFilter, hasService) - Collect all statements in a list (for source
selection), do not collect SERVICE expressions - Collect all Join arguments and group them in the NJoin structure for
easier optimization (flatten)
|
class |
LimitOptimizer
An optimizer that attempts to push upper limits into BGPs of the query.
|
class |
ServiceOptimizer
Optimizer for SERVICE nodes.
|
class |
StatementGroupAndJoinOptimizer
Optimizer with the following tasks:
1.
|
class |
UnionOptimizer
Optimizer to flatten the UNION operations.
|
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