Class RegexAsStringFunctionOptimizer
- java.lang.Object
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- org.eclipse.rdf4j.query.algebra.evaluation.optimizer.RegexAsStringFunctionOptimizer
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- All Implemented Interfaces:
QueryOptimizer
- Direct Known Subclasses:
RegexAsStringFunctionOptimizer
public class RegexAsStringFunctionOptimizer extends java.lang.Object implements QueryOptimizer
A query optimizer that replaces REGEX withFunctionCall
s that are equivalent operators
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Nested Class Summary
Nested Classes Modifier and Type Class Description private static class
RegexAsStringFunctionOptimizer.RegexAsStringFunctionVisitor
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Field Summary
Fields Modifier and Type Field Description private ValueFactory
vf
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Constructor Summary
Constructors Constructor Description RegexAsStringFunctionOptimizer(ValueFactory vf)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
optimize(TupleExpr tupleExpr, Dataset dataset, BindingSet bindings)
Applies generally applicable optimizations to the supplied query: variable assignments are inlined.
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Field Detail
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vf
private final ValueFactory vf
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Constructor Detail
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RegexAsStringFunctionOptimizer
public RegexAsStringFunctionOptimizer(ValueFactory vf)
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Method Detail
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optimize
public void optimize(TupleExpr tupleExpr, Dataset dataset, BindingSet bindings)
Applies generally applicable optimizations to the supplied query: variable assignments are inlined.- Specified by:
optimize
in interfaceQueryOptimizer
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