org.openrdf.sail.rdbms.optimizers
Class RdbmsQueryOptimizer

java.lang.Object
  org.openrdf.sail.rdbms.optimizers.RdbmsQueryOptimizer

Direct Known Subclasses:

PgSqlQueryOptimizer

public class RdbmsQueryOptimizer
extends Object

Facade to the underlying RDBMS optimizations.

Author:

James Leigh

Constructor Summary

RdbmsQueryOptimizer()

Method Summary

TupleExpr	optimize(TupleExpr expr, Dataset dataset, BindingSet bindings, EvaluationStrategy strategy)
protected void	rdbmsOptimizations(TupleExpr expr, Dataset dataset, BindingSet bindings)
void	setBnodeTable(BNodeTable bnodes)
void	setHashTable(HashTable hashTable)
void	setLiteralTable(LiteralTable literals)
void	setSelectQueryOptimizerFactory(SelectQueryOptimizerFactory factory)
void	setUriTable(URITable uris)
void	setValueFactory(RdbmsValueFactory vf)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RdbmsQueryOptimizer

public RdbmsQueryOptimizer()

Method Detail

setSelectQueryOptimizerFactory

public void setSelectQueryOptimizerFactory(SelectQueryOptimizerFactory factory)

setValueFactory

public void setValueFactory(RdbmsValueFactory vf)

setUriTable

public void setUriTable(URITable uris)

setBnodeTable

public void setBnodeTable(BNodeTable bnodes)

setLiteralTable

public void setLiteralTable(LiteralTable literals)

setHashTable

public void setHashTable(HashTable hashTable)

optimize

public TupleExpr optimize(TupleExpr expr,
                          Dataset dataset,
                          BindingSet bindings,
                          EvaluationStrategy strategy)

rdbmsOptimizations

protected void rdbmsOptimizations(TupleExpr expr,
                                  Dataset dataset,
                                  BindingSet bindings)