2 * Copyright (c) 2015 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.yang.model.api.meta;
10 import javax.annotation.Nonnull;
11 import javax.annotation.Nullable;
12 import org.opendaylight.yangtools.concepts.Immutable;
13 import org.opendaylight.yangtools.yang.common.QName;
16 * Definition / model of YANG {@link DeclaredStatement} and {@link EffectiveStatement}.
19 * Statement concept is defined in RFC6020 section 6.3: <blockquote> A YANG
20 * module contains a sequence of statements. Each statement starts with a
21 * keyword, followed by zero or one argument </blockquote>
24 * Source: <a href="https://tools.ietf.org/html/rfc6020#section-6.3"> </a>
26 public interface StatementDefinition extends Immutable {
28 * Returns name of the statement.
30 * @return Name of the statement
33 QName getStatementName();
36 * Returns name of statement argument or null, if statement does not have
39 * @return argument name or null, if statement does not take argument.
42 QName getArgumentName();
45 * Returns class which represents declared version of statement associated
46 * with this definition.
49 * This class should be interface, which provides convenience access to
50 * declared substatements.
52 * @return class which represents declared version of statement associated
53 * with this definition.
56 Class<? extends DeclaredStatement<?>> getDeclaredRepresentationClass();
59 * Returns class which represents derived behaviour from supplied statement.
62 * This class should be interface, which defines convenience access to
63 * statement properties, namespace items and substatements.
65 * @return class which represents effective version of statement associated
66 * with this definition
69 Class<? extends EffectiveStatement<?, ?>> getEffectiveRepresentationClass();
72 * Returns true, if argument of statement is represented as value of yin
73 * element. If argument of statement is represented as argument of yin
74 * element, returns false.
76 * @return returns true, if statement argument is represented as value of
77 * yin element, otherwise returns false.
79 boolean isArgumentYinElement();