org.aksw.sparqlify.core.cast

Class TypeSystemImpl

java.lang.Object

org.aksw.sparqlify.core.cast.TypeSystemImpl

All Implemented Interfaces:

SparqlFunctionProvider, TypeSystem

public class TypeSystemImpl
extends Object
implements TypeSystem

Constructor Summary

Constructors

Constructor and Description
TypeSystemImpl()

Method Summary

Methods

Modifier and Type	Method and Description
com.hp.hpl.jena.sparql.expr.NodeValue	cast(com.hp.hpl.jena.sparql.expr.NodeValue value, TypeToken targetTypeToken)
SqlValue	cast(SqlValue value, TypeToken targetTypeToken)
Factory1<SqlExpr>	cast(TypeToken fromTypeUri, TypeToken toTypeUri) Return a factory for creating cast-expressions between the given datatypes Null if no such cast exists.
SqlValue	convertSql(com.hp.hpl.jena.sparql.expr.NodeValue value) Convert an RDF literal into a corresponding SQL literal
static TypeSystemImpl	create(Map<String,String> typeHierarchy, Map<String,String> rawPhysicalTypeMap)
static org.aksw.commons.collections.multimaps.IBiSetMultimap<TypeToken,TypeToken>	createHierarchyMap(Map<String,String> typeHierarchy)
org.aksw.sparqlify.core.cast.CoercionSystem<TypeToken,org.aksw.sparqlify.core.cast.SqlValueTransformer>	getCoercionSystem()
Collection<TypeToken>	getDirectSuperTypes(TypeToken name)
org.aksw.commons.collections.multimaps.IBiSetMultimap<TypeToken,TypeToken>	getPhysicalTypeMap()
SparqlFunction	getSparqlFunction(String name)
com.google.common.collect.Multimap<String,String>	getSparqlSqlDecls()
FunctionModelMeta	getSqlFunctionMetaModel()
FunctionModel<TypeToken>	getSqlFunctionModel()
Map<String,SqlExprEvaluator>	getSqlImpls()
SqlTypeMapper	getSqlTypeMapper()
org.aksw.commons.collections.multimaps.IBiSetMultimap<TypeToken,TypeToken>	getTypeHierarchy()
com.hp.hpl.jena.datatypes.TypeMapper	getTypeMapper() An object that can convert between Java Objects and NodeValues
boolean	isSuperClassOf(TypeToken a, TypeToken b)
org.aksw.sparqlify.core.cast.SqlValueTransformer	lookupCast(TypeToken sourceTypeName, TypeToken targetTypeName)
static <T> CandidateMethod<T>	lookupSqlCandidate(FunctionModel<T> functionModel, com.google.common.collect.Multimap<String,String> nameToDecls, String sparqlFnName, List<T> argTypes)
void	registerCoercion(XMethod method) Deprecated.
void	registerLiteralMapper(String typeUri, SqlLiteralMapper mapper) This mapper converts from NodeValues to SQL Literals and vice versa.
void	registerSparqlFunction(SparqlFunction sparqlFunction)
void	registerSqlFunction(XMethod sqlFunction) Makes an SQL function known to the system
XClass	resolve(String typeName)
Set<TypeToken>	supremumDatatypes(TypeToken from, TypeToken to)

Methods inherited from class java.lang.Object

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

Constructor Detail

TypeSystemImpl

public TypeSystemImpl()

Method Detail

getSparqlSqlDecls

public com.google.common.collect.Multimap<String,String> getSparqlSqlDecls()

Specified by:

getSparqlSqlDecls in interface TypeSystem

getSqlFunctionModel

public FunctionModel<TypeToken> getSqlFunctionModel()

Specified by:

getSqlFunctionModel in interface TypeSystem

getSqlImpls

public Map<String,SqlExprEvaluator> getSqlImpls()

Specified by:

getSqlImpls in interface TypeSystem

getPhysicalTypeMap

public org.aksw.commons.collections.multimaps.IBiSetMultimap<TypeToken,TypeToken> getPhysicalTypeMap()

Specified by:

getPhysicalTypeMap in interface TypeSystem

getSqlFunctionMetaModel

public FunctionModelMeta getSqlFunctionMetaModel()

Specified by:

getSqlFunctionMetaModel in interface TypeSystem

getCoercionSystem

public org.aksw.sparqlify.core.cast.CoercionSystem<TypeToken,org.aksw.sparqlify.core.cast.SqlValueTransformer> getCoercionSystem()

Specified by:

getCoercionSystem in interface TypeSystem

getTypeHierarchy

public org.aksw.commons.collections.multimaps.IBiSetMultimap<TypeToken,TypeToken> getTypeHierarchy()

registerSparqlFunction

public void registerSparqlFunction(SparqlFunction sparqlFunction)

Specified by:

registerSparqlFunction in interface TypeSystem

registerLiteralMapper

public void registerLiteralMapper(String typeUri,
                         SqlLiteralMapper mapper)

This mapper converts from NodeValues to SQL Literals and vice versa.

Specified by:

registerLiteralMapper in interface TypeSystem

getTypeMapper

public com.hp.hpl.jena.datatypes.TypeMapper getTypeMapper()

Description copied from interface: TypeSystem

An object that can convert between Java Objects and NodeValues

Specified by:

getTypeMapper in interface TypeSystem

Returns:

registerCoercion

@Deprecated
public void registerCoercion(XMethod method)

Deprecated.

Specified by:

registerCoercion in interface TypeSystem

getSparqlFunction

public SparqlFunction getSparqlFunction(String name)

Specified by:

getSparqlFunction in interface SparqlFunctionProvider

convertSql

public SqlValue convertSql(com.hp.hpl.jena.sparql.expr.NodeValue value)

Convert an RDF literal into a corresponding SQL literal

Specified by:

convertSql in interface TypeSystem

cast

public SqlValue cast(SqlValue value,
            TypeToken targetTypeToken)

Specified by:

cast in interface TypeSystem

cast

public com.hp.hpl.jena.sparql.expr.NodeValue cast(com.hp.hpl.jena.sparql.expr.NodeValue value,
                                         TypeToken targetTypeToken)

lookupCast

public org.aksw.sparqlify.core.cast.SqlValueTransformer lookupCast(TypeToken sourceTypeName,
                                                          TypeToken targetTypeName)

isSuperClassOf

public boolean isSuperClassOf(TypeToken a,
                     TypeToken b)

Specified by:

isSuperClassOf in interface TypeSystem

resolve

public XClass resolve(String typeName)

getDirectSuperTypes

public Collection<TypeToken> getDirectSuperTypes(TypeToken name)

cast

public Factory1<SqlExpr> cast(TypeToken fromTypeUri,
                     TypeToken toTypeUri)

Description copied from interface: TypeSystem

Return a factory for creating cast-expressions between the given datatypes Null if no such cast exists. Constant folding may be performed, but do not rely on it. So cast(string, int).create(NodeValue.makeString('666')) may return Cast((string, int), NodeValue('666')) rather than NodeValue.makeInteger(666)

Specified by:

cast in interface TypeSystem

registerSqlFunction

public void registerSqlFunction(XMethod sqlFunction)

Description copied from interface: TypeSystem

Makes an SQL function known to the system

Specified by:

registerSqlFunction in interface TypeSystem

createHierarchyMap

public static org.aksw.commons.collections.multimaps.IBiSetMultimap<TypeToken,TypeToken> createHierarchyMap(Map<String,String> typeHierarchy)

create

public static TypeSystemImpl create(Map<String,String> typeHierarchy,
                    Map<String,String> rawPhysicalTypeMap)

supremumDatatypes

public Set<TypeToken> supremumDatatypes(TypeToken from,
                               TypeToken to)

Specified by:

supremumDatatypes in interface TypeSystem

getSqlTypeMapper

public SqlTypeMapper getSqlTypeMapper()

Specified by:

getSqlTypeMapper in interface TypeSystem

lookupSqlCandidate

public static <T> CandidateMethod<T> lookupSqlCandidate(FunctionModel<T> functionModel,
                                        com.google.common.collect.Multimap<String,String> nameToDecls,
                                        String sparqlFnName,
                                        List<T> argTypes)