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

Class AggregationSplitterImpl.AggregationUnionLifterTransformer

java.lang.Object

it.unibz.inf.ontop.iq.transform.impl.DefaultRecursiveIQTreeVisitingTransformer

it.unibz.inf.ontop.iq.optimizer.impl.AggregationSplitterImpl.AggregationUnionLifterTransformer

All Implemented Interfaces:

IQTreeTransformer, IQTreeVisitingTransformer

Enclosing class:

AggregationSplitterImpl

protected static class AggregationSplitterImpl.AggregationUnionLifterTransformer
extends DefaultRecursiveIQTreeVisitingTransformer

Assumes that the tree is normalized

Field Summary

Fields inherited from class it.unibz.inf.ontop.iq.transform.impl.DefaultRecursiveIQTreeVisitingTransformer

iqFactory

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AggregationUnionLifterTransformer(CoreSingletons coreSingletons, VariableGenerator variableGenerator)

Method Summary

Modifier and Type	Method	Description
protected IQTree	liftUnion(it.unibz.inf.ontop.com.google.common.collect.ImmutableList<it.unibz.inf.ontop.com.google.common.collect.ImmutableSet<IQTree>> groups, Optional<ConstructionNode> childConstructionNode, Optional<DistinctNode> distinctDescendantNode, Optional<ConstructionNode> subConstructionDescendantNode, AggregationNode initialAggregationNode, it.unibz.inf.ontop.com.google.common.collect.ImmutableMultiset<IQTree> unionChildren)
IQTree	transformAggregation(IQTree tree, AggregationNode rootNode, IQTree child)

Methods inherited from class it.unibz.inf.ontop.iq.transform.impl.DefaultRecursiveIQTreeVisitingTransformer

transformBinaryNonCommutativeNode, transformConstruction, transformDistinct, transformEmpty, transformExtensionalData, transformFilter, transformInnerJoin, transformIntensionalData, transformLeaf, transformLeftJoin, transformNaryCommutativeNode, transformNonStandardBinaryNonCommutativeNode, transformNonStandardLeafNode, transformNonStandardNaryNode, transformNonStandardUnaryNode, transformOrderBy, transformSlice, transformTrue, transformUnaryNode, transformUnion, transformValues

Methods inherited from class java.lang.Object

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

Methods inherited from interface it.unibz.inf.ontop.iq.transform.IQTreeVisitingTransformer

transform

Constructor Detail

AggregationUnionLifterTransformer

protected AggregationUnionLifterTransformer(CoreSingletons coreSingletons,
                                            VariableGenerator variableGenerator)

Method Detail

transformAggregation

public IQTree transformAggregation(IQTree tree,
                                   AggregationNode rootNode,
                                   IQTree child)

Specified by:

transformAggregation in interface IQTreeVisitingTransformer

Overrides:

transformAggregation in class DefaultRecursiveIQTreeVisitingTransformer

liftUnion

protected IQTree liftUnion(it.unibz.inf.ontop.com.google.common.collect.ImmutableList<it.unibz.inf.ontop.com.google.common.collect.ImmutableSet<IQTree>> groups,
                           Optional<ConstructionNode> childConstructionNode,
                           Optional<DistinctNode> distinctDescendantNode,
                           Optional<ConstructionNode> subConstructionDescendantNode,
                           AggregationNode initialAggregationNode,
                           it.unibz.inf.ontop.com.google.common.collect.ImmutableMultiset<IQTree> unionChildren)