org.eclipse.rdf4j.query.algebra.evaluation.impl

Class AbstractEvaluationStrategyFactory

java.lang.Object

org.eclipse.rdf4j.query.algebra.evaluation.impl.AbstractEvaluationStrategyFactory

All Implemented Interfaces:

EvaluationStrategyFactory

Direct Known Subclasses:

ExtendedEvaluationStrategyFactory, StrictEvaluationStrategyFactory

public abstract class AbstractEvaluationStrategyFactory
extends Object
implements EvaluationStrategyFactory

Abstract base class for ExtendedEvaluationStrategy.

Author:

Jeen Broekstra

Constructor Summary

Constructors

Constructor and Description
AbstractEvaluationStrategyFactory()

Method Summary

Modifier and Type	Method and Description
long	getQuerySolutionCacheThreshold() Get the number of query solutions the EvaluationStrategy will keep in main memory before it attempts to sync to a temporary disk cache.
void	setQuerySolutionCacheThreshold(long threshold) Set the number of query solutions the EvaluationStrategy will keep in main memory before it attempts to sync to a temporary disk cache.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.rdf4j.query.algebra.evaluation.EvaluationStrategyFactory

createEvaluationStrategy

Constructor Detail

AbstractEvaluationStrategyFactory

public AbstractEvaluationStrategyFactory()

Method Detail

setQuerySolutionCacheThreshold

public void setQuerySolutionCacheThreshold(long threshold)

Description copied from interface: EvaluationStrategyFactory

Set the number of query solutions the EvaluationStrategy will keep in main memory before it attempts to sync to a temporary disk cache. If set to 0, no disk caching will occur. EvaluationStrategies that provide no disk caching functionality are free to ignore this parameter.

Specified by:

setQuerySolutionCacheThreshold in interface EvaluationStrategyFactory

Parameters:

threshold - the number of query solutions that the EvaluationStrategy can cache in main memory before attempting disk sync.

getQuerySolutionCacheThreshold

public long getQuerySolutionCacheThreshold()

Description copied from interface: EvaluationStrategyFactory

Get the number of query solutions the EvaluationStrategy will keep in main memory before it attempts to sync to a temporary disk cache. If set to 0, no disk caching will occur. EvaluationStrategies that provide no disk caching functionality are free to ignore this parameter.

Specified by:

getQuerySolutionCacheThreshold in interface EvaluationStrategyFactory