public class SameTermFilterOptimizer extends Object implements QueryOptimizer
Filters with SameTerm operators in statement patterns as much as
possible. Operators like sameTerm(X, Y) are processed by renaming X to Y (or vice versa). Operators like sameTerm(X,
| Modifier and Type | Class and Description |
|---|---|
protected static class |
SameTermFilterOptimizer.BindingSetAssignmentCollector |
protected static class |
SameTermFilterOptimizer.SameTermFilterVisitor |
protected static class |
SameTermFilterOptimizer.VarBinder |
protected static class |
SameTermFilterOptimizer.VarRenamer |
| Constructor and Description |
|---|
SameTermFilterOptimizer() |
| Modifier and Type | Method and Description |
|---|---|
void |
optimize(TupleExpr tupleExpr,
Dataset dataset,
BindingSet bindings)
Applies generally applicable optimizations to the supplied query: variable assignments are inlined.
|
public void optimize(TupleExpr tupleExpr, Dataset dataset, BindingSet bindings)
optimize in interface QueryOptimizerCopyright © 2015-2020 Eclipse Foundation. All Rights Reserved.