org.wikidata.query.rdf.blazegraph.label

Class EmptyLabelServiceOptimizer

java.lang.Object

com.bigdata.rdf.sparql.ast.optimizers.AbstractJoinGroupOptimizer

org.wikidata.query.rdf.blazegraph.label.EmptyLabelServiceOptimizer

All Implemented Interfaces:

com.bigdata.rdf.sparql.ast.optimizers.IASTOptimizer

public class EmptyLabelServiceOptimizer
extends com.bigdata.rdf.sparql.ast.optimizers.AbstractJoinGroupOptimizer

Rewrites empty calls to the label service to attempt to resolve labels based on the query's projection.

Constructor Summary

Constructors

Constructor and Description
EmptyLabelServiceOptimizer()

Method Summary

Modifier and Type	Method and Description
protected void	optimizeJoinGroup(com.bigdata.rdf.sparql.ast.eval.AST2BOpContext ctx, com.bigdata.rdf.sparql.ast.StaticAnalysis sa, com.bigdata.bop.IBindingSet[] bSets, com.bigdata.rdf.sparql.ast.JoinGroupNode op)

Methods inherited from class com.bigdata.rdf.sparql.ast.optimizers.AbstractJoinGroupOptimizer

optimize

Methods inherited from class java.lang.Object

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

Constructor Detail

EmptyLabelServiceOptimizer

public EmptyLabelServiceOptimizer()

Method Detail

optimizeJoinGroup

protected void optimizeJoinGroup(com.bigdata.rdf.sparql.ast.eval.AST2BOpContext ctx,
                                 com.bigdata.rdf.sparql.ast.StaticAnalysis sa,
                                 com.bigdata.bop.IBindingSet[] bSets,
                                 com.bigdata.rdf.sparql.ast.JoinGroupNode op)

Specified by:

optimizeJoinGroup in class com.bigdata.rdf.sparql.ast.optimizers.AbstractJoinGroupOptimizer