Package io.substrait.relation

Class AbstractUpdate.TransformExpression

java.lang.Object

io.substrait.relation.AbstractUpdate.TransformExpression

Direct Known Subclasses:

ImmutableTransformExpression

Enclosing class:

AbstractUpdate

@Immutable
public abstract static class AbstractUpdate.TransformExpression
extends Object

Represents a transformation applied to a specific column during an update.

Constructor Summary

Constructors

Constructor	Description
TransformExpression()

Method Summary

Modifier and Type	Method	Description
static ImmutableTransformExpression.Builder	builder()	Creates a builder for AbstractUpdate.TransformExpression.
abstract int	getColumnTarget()	Returns the index of the target column to update.
abstract Expression	getTransformation()	Returns the expression that computes the new value for the column.

Methods inherited from class java.lang.Object

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

Constructor Details

TransformExpression

public TransformExpression()

Method Details

getTransformation

public abstract Expression getTransformation()

Returns the expression that computes the new value for the column.

Returns:

transformation expression

getColumnTarget

public abstract int getColumnTarget()

Returns the index of the target column to update.

Returns:

column index

builder

public static ImmutableTransformExpression.Builder builder()

Creates a builder for AbstractUpdate.TransformExpression.

Returns:

builder instance