com.bigdata.rdf.rules

Class RDFJoinNexusFactory

java.lang.Object

com.bigdata.relation.rule.eval.AbstractJoinNexusFactory

com.bigdata.rdf.rules.RDFJoinNexusFactory

All Implemented Interfaces:

IJoinNexusFactory, Serializable

public class RDFJoinNexusFactory
extends AbstractJoinNexusFactory

Factory for RDFJoinNexus objects.

Version:

$Id$

Author:

Bryan Thompson

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected static org.apache.log4j.Logger	log

Constructor Summary

Constructors

Constructor and Description
RDFJoinNexusFactory(ActionEnum action, long writeTimestamp, long readTimestamp, Properties properties, int solutionFlags, IElementFilter<?> filter, IEvaluationPlanFactory planFactory, IRuleTaskFactory defaultRuleTaskFactory, RuleContextEnum ruleContext, boolean justify, boolean backchain, boolean isOwlSameAsUsed)

Method Summary

Methods

Modifier and Type	Method and Description
protected IJoinNexus	newJoinNexus(IIndexManager indexManager) Factory for IJoinNexus instances used by AbstractJoinNexusFactory.newInstance(IIndexManager) as past of its singleton pattern.
protected void	toString(StringBuilder sb) Allows extension of AbstractJoinNexusFactory.toString() by derived classes.

Methods inherited from class com.bigdata.relation.rule.eval.AbstractJoinNexusFactory

getAction, getDefaultRuleTaskFactory, getEvaluationPlanFactory, getProperties, getReadTimestamp, getSolutionFilter, getSolutionFlags, getWriteTimestamp, newInstance, setReadTimestamp, toString

Methods inherited from class java.lang.Object

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

Field Detail

log

protected static final transient org.apache.log4j.Logger log

Constructor Detail

RDFJoinNexusFactory

public RDFJoinNexusFactory(ActionEnum action,
                   long writeTimestamp,
                   long readTimestamp,
                   Properties properties,
                   int solutionFlags,
                   IElementFilter<?> filter,
                   IEvaluationPlanFactory planFactory,
                   IRuleTaskFactory defaultRuleTaskFactory,
                   RuleContextEnum ruleContext,
                   boolean justify,
                   boolean backchain,
                   boolean isOwlSameAsUsed)

Parameters:

justify - if justifications are required.

backchain - Normally true for high level query and false for database-at-once-closure and Truth Maintenance. When true, query time inferences are included when reading on an IAccessPath for the SPORelation using the InferenceEngine to "backchain" any necessary entailments.

isOwlSameAsUsed - true iff Axioms.isOwlSameAs() AND (x owl:sameAs y) is not empty in the data.

Method Detail

toString

protected void toString(StringBuilder sb)

Description copied from class: AbstractJoinNexusFactory

Allows extension of AbstractJoinNexusFactory.toString() by derived classes.

Overrides:

toString in class AbstractJoinNexusFactory

newJoinNexus

protected IJoinNexus newJoinNexus(IIndexManager indexManager)

Description copied from class: AbstractJoinNexusFactory

Factory for IJoinNexus instances used by AbstractJoinNexusFactory.newInstance(IIndexManager) as past of its singleton pattern.

Specified by:

newJoinNexus in class AbstractJoinNexusFactory