Package io.substrait.relation

Class Expand.SwitchingField

java.lang.Object

io.substrait.relation.Expand.SwitchingField

All Implemented Interfaces:

Expand.ExpandField

Direct Known Subclasses:

ImmutableExpand.SwitchingField

Enclosing class:

Expand

@Immutable
public abstract static class Expand.SwitchingField
extends Object
implements Expand.ExpandField

A field that may switch among duplicate expressions; nullability propagates if any duplicate is nullable.

Constructor Summary

Constructors

Constructor	Description
SwitchingField()

Method Summary

Modifier and Type	Method	Description
static ImmutableExpand.SwitchingField.Builder	builder()	Creates a builder for Expand.SwitchingField.
abstract List<Expression>	getDuplicates()	Returns the duplicate expressions this field may switch between.
Type	getType()	Returns the type derived from duplicates, adjusting nullability if needed.

Methods inherited from class java.lang.Object

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

Constructor Details

SwitchingField

public SwitchingField()

Method Details

getDuplicates

public abstract List<Expression> getDuplicates()

Returns the duplicate expressions this field may switch between.

Returns:

list of duplicate expressions

getType

public Type getType()

Returns the type derived from duplicates, adjusting nullability if needed.

Specified by:

getType in interface Expand.ExpandField

Returns:

the field type

builder

public static ImmutableExpand.SwitchingField.Builder builder()

Creates a builder for Expand.SwitchingField.

Returns:

a new immutable builder