it.unibz.inf.ontop.model.term.functionsymbol.impl

Class AvgSPARQLFunctionSymbolImpl

java.lang.Object

it.unibz.inf.ontop.model.term.impl.PredicateImpl

it.unibz.inf.ontop.model.term.functionsymbol.impl.FunctionSymbolImpl

it.unibz.inf.ontop.model.term.functionsymbol.impl.SPARQLLikeFunctionSymbolImpl

it.unibz.inf.ontop.model.term.functionsymbol.impl.SPARQLFunctionSymbolImpl

it.unibz.inf.ontop.model.term.functionsymbol.impl.UnaryNumericSPARQLAggregationFunctionSymbolImpl

it.unibz.inf.ontop.model.term.functionsymbol.impl.AvgSPARQLFunctionSymbolImpl

All Implemented Interfaces:

AggregationFunctionSymbol, FunctionSymbol, Predicate, SPARQLAggregationFunctionSymbol, SPARQLFunctionSymbol

public class AvgSPARQLFunctionSymbolImpl
extends UnaryNumericSPARQLAggregationFunctionSymbolImpl

Nested Class Summary

Nested classes/interfaces inherited from interface it.unibz.inf.ontop.model.term.functionsymbol.SPARQLAggregationFunctionSymbol

SPARQLAggregationFunctionSymbol.AggregationSimplification

Nested classes/interfaces inherited from interface it.unibz.inf.ontop.model.term.functionsymbol.FunctionSymbol

FunctionSymbol.FunctionalTermNullability

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AvgSPARQLFunctionSymbolImpl(RDFTermType rootRdfTermType, boolean isDistinct)

Method Summary

Modifier and Type	Method and Description
protected ImmutableFunctionalTerm	createAggregate(ConcreteNumericRDFDatatype rdfType, ImmutableTerm dbTerm, TermFactory termFactory)
protected SPARQLAggregationFunctionSymbol.AggregationSimplification	decomposeMultityped(ImmutableTerm subTerm, it.unibz.inf.ontop.com.google.common.collect.ImmutableSet<RDFTermType> subTermPossibleTypes, boolean hasGroupBy, VariableNullability variableNullability, VariableGenerator variableGenerator, TermFactory termFactory) Here the aggregated value will be a DB decimal (we ignore the distinction between decimal, float and double) 3 possible XSD datatypes are possible for the output: DECIMAL, FLOAT and DOUBLE
Constant	evaluateEmptyBag(TermFactory termFactory)
protected ConcreteNumericRDFDatatype	inferTypeWhenNonEmpty(ConcreteNumericRDFDatatype inputNumericDatatype, TypeFactory typeFactory)

Methods inherited from class it.unibz.inf.ontop.model.term.functionsymbol.impl.UnaryNumericSPARQLAggregationFunctionSymbolImpl

buildTermAfterEvaluation, canBePostProcessed, createNonNumericRequest, decomposeIntoDBAggregation, decomposeUnityped, extractNonNumericTypes, inferType, isAggregation, isAlwaysInjectiveInTheAbsenceOfNonInjectiveFunctionalTerms, isDistinct, isNullable, tolerateNulls

Methods inherited from class it.unibz.inf.ontop.model.term.functionsymbol.impl.SPARQLFunctionSymbolImpl

getIRI, getOfficialName

Methods inherited from class it.unibz.inf.ontop.model.term.functionsymbol.impl.SPARQLLikeFunctionSymbolImpl

extractLexicalTerm, extractRDFTermTypeTerm, isRDFFunctionalTerm, mayReturnNullWithoutNullArguments

Methods inherited from class it.unibz.inf.ontop.model.term.functionsymbol.impl.FunctionSymbolImpl

analyzeInjectivity, canBeSafelyDecomposedIntoConjunction, decomposeInjectiveTopFunctionalTerm, enableIfElseNullLifting, evaluateIsNotNull, evaluateNullability, evaluateStrictEq, evaluateStrictEqWithFunctionalTerm, evaluateStrictEqWithNonNullConstant, getExpectedBaseType, getExpectedBaseTypes, isDeterministic, isInjective, proposeProvenanceVariables, simplify, simplifyAsGuaranteedToBeNonNull, transformIntoRegularArguments, tryToLiftMagicNumbers

Methods inherited from class it.unibz.inf.ontop.model.term.impl.PredicateImpl

equals, getArity, getName, hashCode, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface it.unibz.inf.ontop.model.term.functionsymbol.SPARQLFunctionSymbol

getIRI, getOfficialName

Methods inherited from interface it.unibz.inf.ontop.model.term.functionsymbol.FunctionSymbol

analyzeInjectivity, evaluateIsNotNull, evaluateNullability, evaluateStrictEq, getExpectedBaseType, isDeterministic, proposeProvenanceVariables, simplify, simplifyAsGuaranteedToBeNonNull

Methods inherited from interface it.unibz.inf.ontop.model.term.functionsymbol.Predicate

getArity, getName

Constructor Detail

AvgSPARQLFunctionSymbolImpl

protected AvgSPARQLFunctionSymbolImpl(RDFTermType rootRdfTermType,
                                      boolean isDistinct)

Method Detail

createAggregate

protected ImmutableFunctionalTerm createAggregate(ConcreteNumericRDFDatatype rdfType,
                                                  ImmutableTerm dbTerm,
                                                  TermFactory termFactory)

Specified by:

createAggregate in class UnaryNumericSPARQLAggregationFunctionSymbolImpl

inferTypeWhenNonEmpty

protected ConcreteNumericRDFDatatype inferTypeWhenNonEmpty(ConcreteNumericRDFDatatype inputNumericDatatype,
                                                           TypeFactory typeFactory)

Specified by:

inferTypeWhenNonEmpty in class UnaryNumericSPARQLAggregationFunctionSymbolImpl

decomposeMultityped

protected SPARQLAggregationFunctionSymbol.AggregationSimplification decomposeMultityped(ImmutableTerm subTerm,
                                                                                        it.unibz.inf.ontop.com.google.common.collect.ImmutableSet<RDFTermType> subTermPossibleTypes,
                                                                                        boolean hasGroupBy,
                                                                                        VariableNullability variableNullability,
                                                                                        VariableGenerator variableGenerator,
                                                                                        TermFactory termFactory)

Here the aggregated value will be a DB decimal (we ignore the distinction between decimal, float and double) 3 possible XSD datatypes are possible for the output: DECIMAL, FLOAT and DOUBLE

Specified by:

decomposeMultityped in class UnaryNumericSPARQLAggregationFunctionSymbolImpl

evaluateEmptyBag

public Constant evaluateEmptyBag(TermFactory termFactory)