2 * Copyright (c) 2018 Pantheon Technologies, s.r.o. 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 com.google.common.annotations.Beta;
13 import com.google.common.base.MoreObjects;
14 import com.google.common.base.MoreObjects.ToStringHelper;
15 import org.eclipse.jdt.annotation.NonNullByDefault;
18 * Simple base class for classes which wish to implement {@link Delegator} interface and are not otherwise constrained
19 * in their class hierarchy.
21 * @param <T> Type of delegate
25 public abstract class AbstractDelegator<T> implements Delegator<T> {
26 private final T delegate;
28 protected AbstractDelegator(final T delegate) {
29 this.delegate = requireNonNull(delegate);
33 public final T getDelegate() {
38 public final String toString() {
39 return addToString(MoreObjects.toStringHelper(this).omitNullValues()).toString();
42 protected ToStringHelper addToString(final ToStringHelper helper) {
43 return helper.add("delegate", delegate);