Interface Closeable

vertx-core/src/main/java/io/vertx/core/Closeable.java:21–29

A closeable resource. This interface is mostly used for internal resource management of Vert.x. @author Tim Fox

 * @author <a href="http://tfox.org">Tim Fox</a>
 */
public interface Closeable {

  /**
   * Close this resource, the {@code completion} promise must be notified when the operation has completed.
   *
   * @param completion the promise to signal when close has completed
   */
  void close(Completable<Void> completion);
}