Package org.apache.flink.table.types.inference

Class TypeInferenceUtil.Result

java.lang.Object

org.apache.flink.table.types.inference.TypeInferenceUtil.Result

Enclosing class:

TypeInferenceUtil

@Internal
public static final class TypeInferenceUtil.Result
extends Object

The result of a type inference run. It contains information about how arguments need to be adapted in order to comply with the function's signature.

This includes casts that need to be inserted, reordering of arguments (*), or insertion of default values (*) where (*) is future work.

Constructor Summary

Constructors

Constructor	Description
Result(List<DataType> expectedArgumentTypes, DataType accumulatorDataType, DataType outputDataType)

Method Summary

Modifier and Type	Method	Description
Optional<DataType>	getAccumulatorDataType()
List<DataType>	getExpectedArgumentTypes()
DataType	getOutputDataType()

Methods inherited from class java.lang.Object

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

Constructor Details

Result

public Result(List<DataType> expectedArgumentTypes,
 @Nullable
 DataType accumulatorDataType,
 DataType outputDataType)

Method Details

getExpectedArgumentTypes

public List<DataType> getExpectedArgumentTypes()

getAccumulatorDataType

public Optional<DataType> getAccumulatorDataType()

getOutputDataType

public DataType getOutputDataType()