2 * Copyright (c) 2021 PANTHEON.tech, 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.yang.parser.spi.meta;
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.NonNull;
16 import org.opendaylight.yangtools.concepts.Immutable;
17 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
20 * Effective summary of a {@link EffectiveStatement}'s implementation state. This class serves as a shared concept
21 * between {@link StatementFactory} and common reactor, driving statement reuse.
24 * {@link StatementFactory} implementations are expected to subclass {@link EffectiveStatementState}, adding whatever
25 * additional state is needed and implement {@link #hashCode()} and {@link #equals(Object)} accordingly.
28 public abstract class EffectiveStatementState implements Immutable {
29 private final @NonNull Immutable identity;
31 protected EffectiveStatementState(final @NonNull Immutable identity) {
32 this.identity = requireNonNull(identity);
35 protected final @NonNull Immutable identity() {
40 public abstract int hashCode();
43 public abstract boolean equals(Object obj);
46 public final String toString() {
47 return addToStringAttributes(MoreObjects.toStringHelper(this)).toString();
50 protected @NonNull ToStringHelper addToStringAttributes(final @NonNull ToStringHelper helper) {
51 return helper.add("identity", identity);