Immutable Collections in Java with Sealed Types

Thu, 10 Dec 2020 03:02:00 +0000

Designing Immutable Collection using Sealed Types in JDK 15{#caption-attachment-36538}

How to define contractual, structural, and verifiable immutable Java collections.

Introducing Sealed Types

JDK 15 was released on September 15, 2020. JEP 360 Sealed Types was included as a preview feature in this release, with its second preview in JDK 16. Sealed Types is part of Project Amber . Sealed classes or interfaces can be used to restrict the interfaces or classes that are allowed to extend them. This is accomplished by using the sealed, non-sealed, and permits modifiers.{#297e}

Don Raab on foojay.io - Friends of OpenJDK

Immutable Collections in Java with Sealed Types

Introducing Sealed Types