Package io.substrait.relation

Class ImmutableTransformExpression.Builder

java.lang.Object

io.substrait.relation.ImmutableTransformExpression.Builder

Enclosing class:

ImmutableTransformExpression

public static final class ImmutableTransformExpression.Builder
extends Object

Builds instances of type ImmutableTransformExpression. Initialize attributes and then invoke the build() method to create an immutable instance.

Builder is not thread-safe and generally should not be stored in a field or collection, but instead used immediately to create instances.

Method Summary

Modifier and Type	Method	Description
ImmutableTransformExpression	build()	Builds a new ImmutableTransformExpression.
final ImmutableTransformExpression.Builder	columnTarget(int columnTarget)	Initializes the value for the columnTarget attribute.
final ImmutableTransformExpression.Builder	from(AbstractUpdate.TransformExpression instance)	Fill a builder with attribute values from the provided TransformExpression instance.
final ImmutableTransformExpression.Builder	transformation(Expression transformation)	Initializes the value for the transformation attribute.

Methods inherited from class java.lang.Object

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

Method Details

from

public final ImmutableTransformExpression.Builder from(AbstractUpdate.TransformExpression instance)

Fill a builder with attribute values from the provided TransformExpression instance. Regular attribute values will be replaced with those from the given instance. Absent optional values will not replace present values.

Parameters:

instance - The instance from which to copy values

Returns:

this builder for use in a chained invocation

transformation

public final ImmutableTransformExpression.Builder transformation(Expression transformation)

Initializes the value for the transformation attribute.

Parameters:

transformation - The value for transformation

Returns:

this builder for use in a chained invocation

columnTarget

public final ImmutableTransformExpression.Builder columnTarget(int columnTarget)

Initializes the value for the columnTarget attribute.

Parameters:

columnTarget - The value for columnTarget

Returns:

this builder for use in a chained invocation

build

public ImmutableTransformExpression build()

Builds a new ImmutableTransformExpression.

Returns:

An immutable instance of TransformExpression

Throws:

IllegalStateException - if any required attributes are missing