2 * Copyright (c) 2013 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
8 package org.opendaylight.yangtools.concepts;
10 import static java.util.Objects.requireNonNull;
12 import javax.annotation.Nonnull;
15 * Utility registration handle. It is a convenience for register-style method
16 * which can return an AutoCloseable realized by a subclass of this class.
17 * Invoking the close() method triggers unregistration of the state the method
20 public abstract class AbstractObjectRegistration<T> extends AbstractRegistration implements ObjectRegistration<T> {
21 private final T instance;
23 protected AbstractObjectRegistration(final @Nonnull T instance) {
24 this.instance = requireNonNull(instance);
28 public final T getInstance() {
33 public String toString() {
34 return "AbstractObjectRegistration{instance=" + instance + '}';