Package io.substrait.expression

Class ImmutableMapKey.Builder

java.lang.Object

io.substrait.expression.ImmutableMapKey.Builder

Enclosing class:

ImmutableMapKey

public static final class ImmutableMapKey.Builder
extends Object

Builds instances of type ImmutableMapKey. 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
ImmutableMapKey	build()	Builds a new ImmutableMapKey.
final ImmutableMapKey.Builder	from(FieldReference.MapKey instance)	Fill a builder with attribute values from the provided MapKey instance.
final ImmutableMapKey.Builder	key(Expression.Literal key)	Initializes the value for the key attribute.

Methods inherited from class java.lang.Object

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

Method Details

from

public final ImmutableMapKey.Builder from(FieldReference.MapKey instance)

Fill a builder with attribute values from the provided MapKey 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

key

public final ImmutableMapKey.Builder key(Expression.Literal key)

Initializes the value for the key attribute.

Parameters:

key - The value for key

Returns:

this builder for use in a chained invocation

build

public ImmutableMapKey build()

Builds a new ImmutableMapKey.

Returns:

An immutable instance of MapKey

Throws:

IllegalStateException - if any required attributes are missing