tenant-api/viaduct.api.select/SelectionSet/NoSelections

NoSelections

object NoSelections : SelectionSet<CompositeOutput.NotComposite> (source)

A marker object that defines a SelectionSet for a type that does not support selections. NoSelections can be used in places where a SelectionSet is required but cannot be defined.

Properties

type

open override val type: Type<CompositeOutput.NotComposite>

the type condition of this SelectionSet

Functions

contains

open override fun contains(field: Field): Boolean

Returns true if this SelectionSet includes the provided Field.

isEmpty

open override fun isEmpty(): Boolean

Returns true if this SelectionSet contains no fields for any valid type projection.

requestsType

open override fun requestsType(type: Type): Boolean

Returns true if the provided type is requested in this SelectionSet.

selectionSetFor

open override fun selectionSetFor(field: CompositeField<U, R>): SelectionSet<R>

Return a SelectionSet describing the selections at the provided field. If the current SelectionSet does not include the provided field, then an empty SelectionSet will be returned.

open override fun selectionSetFor(type: Type): SelectionSet

Return a SelectionSet that is a projection of the selections on the provided type. The returned SelectionSet may include fields that are selected on a parent interface or union -- if you need to know if a projected SelectionSet contains non-inherited selections for a type, see requestsType