/**

 * Annotation to inform users of how much to rely on a particular package,

 * class or method not changing over time.

 */

public class InterfaceStability {

  /**

   * Stable APIs that retain source and binary compatibility within a major release.

   * These interfaces can change from one major release to another major release

   * (e.g. from 1.0 to 2.0).

   */

  @Documented

  public @interface Stable {};

  /**

   * APIs that are meant to evolve towards becoming stable APIs, but are not stable APIs yet.

   * Evolving interfaces can change from one feature release to another release (i.e. 2.1 to 2.2).

   */

  @Documented

  public @interface Evolving {};

  /**

   * Unstable APIs, with no guarantee on stability.

   * Classes that are unannotated are considered Unstable.

   */

  @Documented

  public @interface Unstable {};

}