2 * Copyright (c) 2019 PANTHEON.tech, s.r.o. 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.model.api.meta;
10 import static java.util.Objects.requireNonNull;
12 import com.google.common.base.MoreObjects;
13 import java.util.Optional;
14 import org.eclipse.jdt.annotation.NonNull;
15 import org.eclipse.jdt.annotation.Nullable;
16 import org.opendaylight.yangtools.concepts.Immutable;
17 import org.opendaylight.yangtools.yang.common.QName;
20 * Definition of an argument to a YANG statement.
22 public abstract sealed class ArgumentDefinition implements Immutable {
23 private static final class YinAttribute extends ArgumentDefinition {
24 YinAttribute(final QName argumentName) {
29 public boolean isYinElement() {
34 private static final class YinElement extends ArgumentDefinition {
35 YinElement(final QName argumentName) {
40 public boolean isYinElement() {
45 private final @NonNull QName argumentName;
47 ArgumentDefinition(final QName argumentName) {
48 this.argumentName = requireNonNull(argumentName);
51 public static @NonNull ArgumentDefinition of(final QName argumentName, final boolean yinElement) {
52 return yinElement ? new YinElement(argumentName) : new YinAttribute(argumentName);
55 public static @NonNull Optional<ArgumentDefinition> ofNullable(final @Nullable QName argumentName,
56 final boolean yinElement) {
57 return argumentName == null ? Optional.empty() : Optional.of(of(argumentName, yinElement));
60 public final @NonNull QName argumentName() {
65 * Returns true, if argument of statement is represented as value of YIN element. If argument of statement is
66 * represented as argument of YIN element, returns false.
68 * @return returns true, if statement argument is represented as value of YIN element, otherwise returns false.
70 public abstract boolean isYinElement();
73 public final int hashCode() {
74 return Boolean.hashCode(isYinElement()) * 31 + argumentName.hashCode();
78 public final boolean equals(final Object obj) {
79 return this == obj || obj instanceof ArgumentDefinition other && isYinElement() == other.isYinElement()
80 && argumentName.equals(other.argumentName);
84 public final String toString() {
85 return MoreObjects.toStringHelper(ArgumentDefinition.class)
86 .add("argumentName", argumentName)
87 .add("yinElement", isYinElement())