Package org.eclipse.rdf4j.federated.optimizer

Class ServiceOptimizer

java.lang.Object

org.eclipse.rdf4j.query.algebra.helpers.AbstractSimpleQueryModelVisitor<OptimizationException>

org.eclipse.rdf4j.federated.optimizer.ServiceOptimizer

All Implemented Interfaces:

FedXOptimizer, QueryModelVisitor<OptimizationException>

public class ServiceOptimizer
extends AbstractSimpleQueryModelVisitor<OptimizationException>
implements FedXOptimizer

Optimizer for SERVICE nodes.

Author:

Andreas Schwarte

Field Summary

Fields

Modifier and Type	Field	Description
protected final QueryInfo	queryInfo

Constructor Summary

Constructors

Constructor	Description
ServiceOptimizer(QueryInfo queryInfo)

Method Summary

Modifier and Type	Method	Description
void	meet(Service service)
void	optimize(TupleExpr tupleExpr)	Optimize the provided tuple expression
protected TupleExpr	optimizeService(Service service)

Methods inherited from class org.eclipse.rdf4j.query.algebra.helpers.AbstractSimpleQueryModelVisitor

meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meetBinaryTupleOperator, meetBinaryValueOperator, meetCompareSubQueryValueOperator, meetNAryValueOperator, meetOther, meetSubQueryValueOperator, meetUnaryTupleOperator, meetUnaryValueOperator, meetUnsupported, meetUpdateExpr

Methods inherited from class java.lang.Object

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

Field Details

queryInfo

protected final QueryInfo queryInfo

Constructor Details

ServiceOptimizer

public ServiceOptimizer(QueryInfo queryInfo)

Parameters:

queryInfo -

Method Details

optimize

public void optimize(TupleExpr tupleExpr)

Description copied from interface: FedXOptimizer

Optimize the provided tuple expression

Specified by:

optimize in interface FedXOptimizer

Parameters:

tupleExpr -

meet

public void meet(Service service)

Specified by:

meet in interface QueryModelVisitor<OptimizationException>

Overrides:

meet in class AbstractSimpleQueryModelVisitor<OptimizationException>

optimizeService

protected TupleExpr optimizeService(Service service)