2 * Copyright (c) 2023 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.mdsal.binding.dom.codec.api;
10 import com.google.common.annotations.Beta;
11 import java.util.List;
12 import java.util.Optional;
13 import org.eclipse.jdt.annotation.NonNull;
14 import org.eclipse.jdt.annotation.Nullable;
15 import org.opendaylight.yangtools.yang.binding.DataObject;
16 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
17 import org.opendaylight.yangtools.yang.common.Empty;
18 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
21 * Common interface shared between {@link BindingDataObjectCodecTreeNode} and {@link BindingAugmentationCodecTreeNode}.
22 * This interface should never be implemented on its own.
24 * @param <T> DataObject type
27 public interface CommonDataObjectCodecTreeNode<T extends DataObject>
28 extends BindingDataObjectCodecTreeParent<Empty>, BindingObjectCodecTreeNode<T> {
30 * Returns binding class of interface which represents API of current schema node. The result is same as invoking
31 * {@link DataObject#implementedInterface()} on instance of data.
33 * @return interface which defines API of binding representation of data.
36 @NonNull Class<T> getBindingClass();
39 * Returns child context as if it was walked by {@link BindingStreamEventWriter}. This means that to enter case,
40 * one must issue getChild(ChoiceClass).getChild(CaseClass).
43 * This method differs from {@link #streamChild(Class)}, that is less strict for interfaces representing
44 * augmentation and cases, that may return {@link BindingCodecTreeNode} even if augmentation interface containing
45 * same data was supplied and does not represent augmentation of this node.
47 * @param childClass Child class by Binding Stream navigation
48 * @return Context of child or Optional.empty is supplied class is not
49 * applicable in context.
51 <E extends DataObject> Optional<? extends CommonDataObjectCodecTreeNode<E>> possibleStreamChild(
52 @NonNull Class<E> childClass);
55 * Returns nested node context using supplied YANG Instance Identifier.
58 * Yang Instance Identifier Argument
59 * @return Context of child
60 * @throws IllegalArgumentException
61 * If supplied argument does not represent valid child.
63 @NonNull BindingCodecTreeNode yangPathArgumentChild(YangInstanceIdentifier.@NonNull PathArgument child);
66 * Returns nested node context using supplied Binding Instance Identifier and adds YANG instance identifiers to
70 * Binding Instance Identifier Argument
72 * Mutable instance of list, which is appended by YangInstanceIdentifiers
73 * as tree is walked. Use null if such side-product is not needed.
74 * @return Context of child
75 * @throws IllegalArgumentException
76 * If supplied argument does not represent valid child.
78 @NonNull CommonDataObjectCodecTreeNode<?> bindingPathArgumentChild(InstanceIdentifier.@NonNull PathArgument arg,
79 @Nullable List<YangInstanceIdentifier.PathArgument> builder);
82 * Serializes path argument for current node.
84 * @param arg Binding Path Argument, may be null if Binding Instance Identifier does not have
85 * representation for current node (e.g. choice or case).
86 * @return Yang Path Argument, may be null if Yang Instance Identifier does not have
87 * representation for current node (e.g. case).
88 * @throws IllegalArgumentException If supplied {@code arg} is not valid.
91 YangInstanceIdentifier.@Nullable PathArgument serializePathArgument(InstanceIdentifier.@Nullable PathArgument arg);
94 * Deserializes path argument for current node.
96 * @param arg Yang Path Argument, may be null if Yang Instance Identifier does not have
97 * representation for current node (e.g. case).
98 * @return Binding Path Argument, may be null if Binding Instance Identifier does not have
99 * representation for current node (e.g. choice or case).
100 * @throws IllegalArgumentException If supplied {@code arg} is not valid.
103 InstanceIdentifier.@Nullable PathArgument deserializePathArgument(
104 YangInstanceIdentifier.@Nullable PathArgument arg);
107 * Return a summary of addressability of potential children. Binding specification does not allow all DOM tree
108 * elements to be directly addressed, which means some recursive tree operations, like data tree changes do not
109 * have a one-to-one mapping from DOM to binding in all cases. This method provides an optimization hint to guide
110 * translation of data structures, allowing for fast paths when all children are known to either be addressable
111 * or non-addressable.
113 * @return Summary children addressability.
115 @NonNull ChildAddressabilitySummary getChildAddressabilitySummary();
118 * Enumeration of possible addressability attribute of all children.
120 enum ChildAddressabilitySummary {
122 * All children are addressable.
126 * All children are non-addressable, including the case when this node does not have any children.
130 * Mixed children, some are addressable and some are not.