接口的使用
org.apache.flink.table.catalog.DataTypeFactory

使用DataTypeFactory的程序包

程序包	说明
org.apache.flink.table.functions
org.apache.flink.table.functions.python
org.apache.flink.table.types
org.apache.flink.table.types.extraction
org.apache.flink.table.types.inference
org.apache.flink.table.types.inference.utils

org.apache.flink.table.functions中DataTypeFactory的使用

参数类型为DataTypeFactory的org.apache.flink.table.functions中的方法

限定符和类型	方法和说明
TypeInference	ScalarFunction.getTypeInference(DataTypeFactory typeFactory)
TypeInference	TableFunction.getTypeInference(DataTypeFactory typeFactory)
TypeInference	BuiltInFunctionDefinition.getTypeInference(DataTypeFactory typeFactory)
TypeInference	TableAggregateFunction.getTypeInference(DataTypeFactory typeFactory)
TypeInference	AggregateFunction.getTypeInference(DataTypeFactory typeFactory)
TypeInference	FunctionDefinition.getTypeInference(DataTypeFactory typeFactory) Returns the logic for performing type inference of a call to this function definition.
TypeInference	AsyncTableFunction.getTypeInference(DataTypeFactory typeFactory)
TypeInference	AggregateFunctionDefinition.getTypeInference(DataTypeFactory typeFactory)
abstract TypeInference	UserDefinedFunction.getTypeInference(DataTypeFactory typeFactory) Returns the logic for performing type inference of a call to this function definition.
TypeInference	TableAggregateFunctionDefinition.getTypeInference(DataTypeFactory typeFactory)
TypeInference	ScalarFunctionDefinition.getTypeInference(DataTypeFactory factory)
TypeInference	TableFunctionDefinition.getTypeInference(DataTypeFactory typeFactory)

org.apache.flink.table.functions.python中DataTypeFactory的使用

参数类型为DataTypeFactory的org.apache.flink.table.functions.python中的方法

限定符和类型	方法和说明
TypeInference	PythonTableFunction.getTypeInference(DataTypeFactory typeFactory)
TypeInference	PythonAggregateFunction.getTypeInference(DataTypeFactory typeFactory)
TypeInference	PythonScalarFunction.getTypeInference(DataTypeFactory typeFactory)

org.apache.flink.table.types中DataTypeFactory的使用

参数类型为DataTypeFactory的org.apache.flink.table.types中的方法

限定符和类型	方法和说明
DataType	UnresolvedDataType.toDataType(DataTypeFactory factory) Converts this instance to a resolved DataType possibly enriched with additional nullability and conversion class information.

类型变量类型为DataTypeFactory的org.apache.flink.table.types中的构造器参数

构造器和说明
UnresolvedDataType(java.util.function.Supplier<String> description, java.util.function.Function<DataTypeFactory,DataType> resolutionFactory)

org.apache.flink.table.types.extraction中DataTypeFactory的使用

参数类型为DataTypeFactory的org.apache.flink.table.types.extraction中的方法

限定符和类型	方法和说明
static DataType	DataTypeExtractor.extractFromGeneric(DataTypeFactory typeFactory, Class<?> baseClass, int genericPos, Type contextType) Extracts a data type from a type variable at genericPos of baseClass using the information of the most specific type contextType.
static DataType	DataTypeExtractor.extractFromMethodOutput(DataTypeFactory typeFactory, Class<?> baseClass, Method method) Extracts a data type from a method return type by considering surrounding classes and method annotation.
static DataType	DataTypeExtractor.extractFromMethodParameter(DataTypeFactory typeFactory, Class<?> baseClass, Method method, int paramPos) Extracts a data type from a method parameter by considering surrounding classes and parameter annotation.
static DataType	DataTypeExtractor.extractFromType(DataTypeFactory typeFactory, org.apache.flink.table.types.extraction.DataTypeTemplate template, Type type) Extracts a data type from a type without considering surrounding classes but templates.
static DataType	DataTypeExtractor.extractFromType(DataTypeFactory typeFactory, Type type) Extracts a data type from a type without considering surrounding classes or templates.
static TypeInference	TypeInferenceExtractor.forAggregateFunction(DataTypeFactory typeFactory, Class<? extends AggregateFunction<?,?>> function) Extracts a type inference from a AggregateFunction.
static TypeInference	TypeInferenceExtractor.forAsyncTableFunction(DataTypeFactory typeFactory, Class<? extends AsyncTableFunction<?>> function) Extracts a type inference from a AsyncTableFunction.
static TypeInference	TypeInferenceExtractor.forScalarFunction(DataTypeFactory typeFactory, Class<? extends ScalarFunction> function) Extracts a type inference from a ScalarFunction.
static TypeInference	TypeInferenceExtractor.forTableAggregateFunction(DataTypeFactory typeFactory, Class<? extends TableAggregateFunction<?,?>> function) Extracts a type inference from a TableAggregateFunction.
static TypeInference	TypeInferenceExtractor.forTableFunction(DataTypeFactory typeFactory, Class<? extends TableFunction<?>> function) Extracts a type inference from a TableFunction.

org.apache.flink.table.types.inference中DataTypeFactory的使用

返回DataTypeFactory的org.apache.flink.table.types.inference中的方法

限定符和类型	方法和说明
DataTypeFactory	CallContext.getDataTypeFactory() Enables to lookup types in a catalog and resolve RAW types.

org.apache.flink.table.types.inference.utils中DataTypeFactory的使用

返回DataTypeFactory的org.apache.flink.table.types.inference.utils中的方法

限定符和类型	方法和说明
DataTypeFactory	UnknownCallContext.getDataTypeFactory()
DataTypeFactory	AdaptedCallContext.getDataTypeFactory()

参数类型为DataTypeFactory的org.apache.flink.table.types.inference.utils中的构造器

构造器和说明
UnknownCallContext(DataTypeFactory typeFactory, String name, FunctionDefinition functionDefinition, int argumentCount)