Package it.unibz.inf.ontop.iq.view.impl

Class OntopViewUnfolderImpl

java.lang.Object

it.unibz.inf.ontop.iq.view.impl.OntopViewUnfolderImpl

All Implemented Interfaces:

IQOptimizer, OntopViewUnfolder

public class OntopViewUnfolderImpl
extends Object
implements OntopViewUnfolder

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static class	OntopViewUnfolderImpl.MaxLevelViewUnfoldingTransformer

Field Summary

Fields

Modifier and Type	Field	Description
protected CoreSingletons	coreSingletons
protected IntermediateQueryFactory	iqFactory

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	OntopViewUnfolderImpl(CoreSingletons coreSingletons)

Method Summary

Modifier and Type	Method	Description
IQ	optimize(IQ query)
protected IQTree	transformTree(IQTree tree, VariableGenerator variableGenerator, int maxLevel)

Methods inherited from class java.lang.Object

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

Field Detail

coreSingletons

protected final CoreSingletons coreSingletons

iqFactory

protected final IntermediateQueryFactory iqFactory

Constructor Detail

OntopViewUnfolderImpl

@Inject
protected OntopViewUnfolderImpl(CoreSingletons coreSingletons)

Method Detail

optimize

public IQ optimize(IQ query)

Specified by:

optimize in interface IQOptimizer

transformTree

protected IQTree transformTree(IQTree tree,
                               VariableGenerator variableGenerator,
                               int maxLevel)