2 * Copyright (c) 2019 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 com.google.common.collect.ImmutableCollection;
12 import java.util.List;
13 import java.util.Optional;
14 import org.eclipse.jdt.annotation.NonNull;
15 import org.eclipse.jdt.annotation.Nullable;
16 import org.opendaylight.yangtools.yang.binding.BindingObject;
17 import org.opendaylight.yangtools.yang.binding.DataObject;
18 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
19 import org.opendaylight.yangtools.yang.common.Empty;
20 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
23 public interface BindingDataObjectCodecTreeNode<T extends DataObject>
24 extends BindingDataObjectCodecTreeParent<Empty>, BindingObjectCodecTreeNode<T>, BindingNormalizedNodeCodec<T> {
27 * Returns binding class of interface which represents API of current schema node. The result is same as invoking
28 * {@link DataObject#implementedInterface()} on instance of data.
30 * @return interface which defines API of binding representation of data.
33 @NonNull Class<T> getBindingClass();
36 * Returns child context as if it was walked by {@link BindingStreamEventWriter}. This means that to enter case,
37 * one must issue getChild(ChoiceClass).getChild(CaseClass).
40 * This method differs from {@link #streamChild(Class)}, that is less strict for interfaces representing
41 * augmentation and cases, that may return {@link BindingCodecTreeNode} even if augmentation interface containing
42 * same data was supplied and does not represent augmentation of this node.
44 * @param childClass Child class by Binding Stream navigation
45 * @return Context of child or Optional.empty is supplied class is not
46 * applicable in context.
48 <E extends DataObject> Optional<? extends BindingDataObjectCodecTreeNode<E>> possibleStreamChild(
49 @NonNull Class<E> childClass);
52 * Returns nested node context using supplied YANG Instance Identifier.
55 * Yang Instance Identifier Argument
56 * @return Context of child
57 * @throws IllegalArgumentException
58 * If supplied argument does not represent valid child.
60 @NonNull BindingCodecTreeNode yangPathArgumentChild(YangInstanceIdentifier.@NonNull PathArgument child);
63 * Returns nested node context using supplied Binding Instance Identifier and adds YANG instance identifiers to
67 * Binding Instance Identifier Argument
69 * Mutable instance of list, which is appended by YangInstanceIdentifiers
70 * as tree is walked. Use null if such side-product is not needed.
71 * @return Context of child
72 * @throws IllegalArgumentException
73 * If supplied argument does not represent valid child.
75 @NonNull BindingDataObjectCodecTreeNode<?> bindingPathArgumentChild(InstanceIdentifier.@NonNull PathArgument arg,
76 @Nullable List<YangInstanceIdentifier.PathArgument> builder);
79 * Serializes path argument for current node.
81 * @param arg Binding Path Argument, may be null if Binding Instance Identifier does not have
82 * representation for current node (e.g. choice or case).
83 * @return Yang Path Argument, may be null if Yang Instance Identifier does not have
84 * representation for current node (e.g. case).
85 * @throws IllegalArgumentException If supplied {@code arg} is not valid.
88 YangInstanceIdentifier.@Nullable PathArgument serializePathArgument(InstanceIdentifier.@Nullable PathArgument arg);
91 * Deserializes path argument for current node.
93 * @param arg Yang Path Argument, may be null if Yang Instance Identifier does not have
94 * representation for current node (e.g. case).
95 * @return Binding Path Argument, may be null if Binding Instance Identifier does not have
96 * representation for current node (e.g. choice or case).
97 * @throws IllegalArgumentException If supplied {@code arg} is not valid.
100 InstanceIdentifier.@Nullable PathArgument deserializePathArgument(
101 YangInstanceIdentifier.@Nullable PathArgument arg);
105 * Return a summary of addressability of potential children. Binding specification does not allow all DOM tree
106 * elements to be directly addressed, which means some recursive tree operations, like data tree changes do not
107 * have a one-to-one mapping from DOM to binding in all cases. This method provides an optimization hint to guide
108 * translation of data structures, allowing for fast paths when all children are known to either be addressable
109 * or non-addressable.
111 * @return Summary children addressability.
113 @NonNull ChildAddressabilitySummary getChildAddressabilitySummary();
116 * Returns codec which uses caches serialization / deserialization results.
119 * Caching may introduce performance penalty to serialization / deserialization
120 * but may decrease use of heap for repetitive objects.
122 * @param cacheSpecifier Set of objects, for which cache may be in place
123 * @return Codec which uses cache for serialization / deserialization.
125 @NonNull BindingNormalizedNodeCachingCodec<T> createCachingCodec(
126 @NonNull ImmutableCollection<Class<? extends BindingObject>> cacheSpecifier);
129 * Enumeration of possible addressability attribute of all children.
131 enum ChildAddressabilitySummary {
133 * All children are addressable.
137 * All children are non-addressable, including the case when this node does not have any children.
141 * Mixed children, some are addressable and some are not.