TypeStrategy (Flink : Table : Common 2.0-preview1 API)

All Known Implementing Classes:

ArgumentMappingTypeStrategy, ArrayAppendPrependTypeStrategy, ArrayElementTypeStrategy, CollectTypeStrategy, CommonTypeStrategy, ExplicitTypeStrategy, FirstTypeStrategy, ForceNullableTypeStrategy, HiveAggDecimalPlusTypeStrategy, ItemAtTypeStrategy, MappingTypeStrategy, MatchFamilyTypeStrategy, MissingTypeStrategy, NullableIfArgsTypeStrategy, RowtimeTypeStrategy, ToTimestampLtzTypeStrategy, VaryingStringTypeStrategy
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@PublicEvolving
public interface TypeStrategy
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Strategy for inferring the data type of a function call. The inferred type might describe the final result or an intermediate result (accumulation type) of a function.
Note: Implementations should implement Object.hashCode() and Object.equals(Object).

See Also:

TypeStrategies

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  Optional<DataType> inferType(CallContext callContext)
  Infers a type from the given function call.

- Method Detail
  - inferType
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Optional<DataType> inferType(CallContext callContext)
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    Infers a type from the given function call.