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

Class TypeTransformations

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

Method Summary

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 Details

TO_INTERNAL_CLASS

public static final TypeTransformation TO_INTERNAL_CLASS

Transformation that uses internal data structures for all conversion classes.

Method Details

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.