RowData.FieldGetter (Flink : Table : Common 2.1.0 API)

All Superinterfaces:

Serializable

Enclosing interface:

RowData
```
@PublicEvolving
public static interface RowData.FieldGetter
extends Serializable
```
Accessor for getting the field of a row during runtime.

See Also:

RowData.createFieldGetter(LogicalType, int)

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  Object getFieldOrNull(RowData row)
  Converters and serializers always support nullability.

- Method Detail
  - getFieldOrNull
```
@Nullable
Object getFieldOrNull(RowData row)
```
    Converters and serializers always support nullability. The NOT NULL constraint is only considered on SQL semantic level but not data transfer. E.g. partial deletes (i.e. key-only upserts) set all non-key fields to null, regardless of logical type.