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

java.lang.Object
- org.apache.flink.table.types.inference.TypeTransformations

```
@Internal
public final class TypeTransformations
extends Object
```
Transformations for transforming one data type to another.

See Also:

TypeTransformation

Field Summary

Fields
Modifier and Type Field Description

static TypeTransformation TO_INTERNAL_CLASS
Transformation that uses internal data structures for all conversion classes.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static TypeTransformation`	`legacyRawToTypeInfoRaw()`	Returns a type transformation that transforms LEGACY('RAW', ...) type to the RAW(..., ?)
`static TypeTransformation`	`legacyToNonLegacy()`	Returns a type transformation that transforms LEGACY(...) type to a non-legacy type.
`static TypeTransformation`	`timeToSqlTypes()`	Returns a type transformation that transforms data type to a new data type whose conversion class is `Timestamp`/`Time`/`Date` if the original data type is TIMESTAMP/TIME/DATE.
`static TypeTransformation`	`toNullable()`	Returns a type transformation that transforms data type to nullable data type but keeps other information unchanged.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - TO_INTERNAL_CLASS
```
public static final TypeTransformation TO_INTERNAL_CLASS
```
    Transformation that uses internal data structures for all conversion classes.
- Method Detail
  - timeToSqlTypes
```
public static TypeTransformation timeToSqlTypes()
```
    Returns a type transformation that transforms data type to a new data type whose conversion class is Timestamp/Time/Date if the original data type is TIMESTAMP/TIME/DATE.
  - legacyRawToTypeInfoRaw
```
public static TypeTransformation legacyRawToTypeInfoRaw()
```
    Returns a type transformation that transforms LEGACY('RAW', ...) type to the RAW(..., ?) type.
  - legacyToNonLegacy
```
public static TypeTransformation legacyToNonLegacy()
```
    Returns a type transformation that transforms LEGACY(...) type to a non-legacy type.
  - toNullable
```
public static TypeTransformation toNullable()
```
    Returns a type transformation that transforms data type to nullable data type but keeps other information unchanged.