http4k / org.http4k.lens / MultiLensSpec
interface MultiLensSpec<IN : Any, OUT>
Represents a uni-directional extraction of a list of entities from a target.
| Name | Summary |
|---|---|
| defaulted | Make a concrete Lens for this spec that fall back to the default list of values if no values are found in the target.abstract fun defaulted(name: String, default: List<OUT>, description: String? = null): Lens<IN, List<OUT>>Make a concrete Lens for this spec that falls back to another lens if no values are found in the target. abstract fun defaulted(name: String, default: Lens<IN, List<OUT>>, description: String? = null): Lens<IN, List<OUT>> |
| optional | Make a concrete Lens for this spec that looks for an optional list of values in the target.abstract fun optional(name: String, description: String? = null): Lens<IN, List<OUT>?> |
| required | Make a concrete Lens for this spec that looks for a required list of values in the target.abstract fun required(name: String, description: String? = null): Lens<IN, List<OUT>> |
| Name | Summary |
|---|---|
| BiDiMultiLensSpec | Represents a bi-directional extraction of a list of entities from a target, or an insertion into a target.interface BiDiMultiLensSpec<IN : Any, OUT> : MultiLensSpec<IN, OUT> |