2 * Copyright (c) 2014 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.controller.md.sal.binding.api;
10 import org.opendaylight.controller.md.sal.common.api.data.AsyncWriteTransaction;
11 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
12 import org.opendaylight.yangtools.yang.binding.DataObject;
13 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
16 * A transaction that provides mutation capabilities on a data tree.
18 * For more information on usage and examples, please see the documentation in {@link AsyncWriteTransaction}.
20 public interface WriteTransaction extends AsyncWriteTransaction<InstanceIdentifier<?>, DataObject> {
23 * Stores a piece of data at the specified path. This acts as an add / replace
24 * operation, which is to say that whole subtree will be replaced by the specified data.
26 * This method does not automatically create missing parent nodes. It is equivalent to invoking
27 * {@link #put(LogicalDatastoreType, InstanceIdentifier, DataObject, boolean)}
28 * with <code>createMissingParents</code> set to false.
30 * For more information on usage and examples, please see the documentation in {@link AsyncWriteTransaction}.
32 * If you need to make sure that a parent object exists but you do not want modify
33 * its pre-existing state by using put, consider using {@link #merge} instead.
36 * the logical data store which should be modified
38 * the data object path
40 * the data object to be written to the specified path
41 * @throws IllegalStateException
42 * if the transaction has already been submitted
44 <T extends DataObject> void put(LogicalDatastoreType store, InstanceIdentifier<T> path, T data);
48 * Stores a piece of data at the specified path. This acts as an add /
49 * replace operation, which is to say that whole subtree will be replaced by
52 * For more information on usage and examples, please see the documentation
53 * in {@link AsyncWriteTransaction}.
55 * If you need to make sure that a parent object exists but you do not want
56 * modify its pre-existing state by using put, consider using {@link #merge}
59 * Note: Using <code>createMissingParents</code> with value true, may
60 * introduce garbage in data store, or recreate nodes, which were deleted by
61 * previous transaction.
64 * the logical data store which should be modified
66 * the data object path
68 * the data object to be written to the specified path
69 * @param createMissingParents
70 * if {@link #CREATE_MISSING_PARENTS} ({@code true}), any missing
71 * parent nodes will be automatically created using a merge
73 * @throws IllegalStateException
74 * if the transaction has already been submitted
76 <T extends DataObject> void put(LogicalDatastoreType store, InstanceIdentifier<T> path, T data,
77 boolean createMissingParents);
80 * Merges a piece of data with the existing data at a specified path. Any pre-existing data
81 * which is not explicitly overwritten will be preserved. This means that if you store a container,
82 * its child lists will be merged.
84 * This method does not automatically create missing parent nodes. It is equivalent to invoking
85 * {@link #merge(LogicalDatastoreType, InstanceIdentifier, DataObject, boolean)}
86 * with <code>createMissingParents</code> set to false.
88 * For more information on usage and examples, please see the documentation in {@link AsyncWriteTransaction}.
90 * If you require an explicit replace operation, use {@link #put} instead.
92 * the logical data store which should be modified
94 * the data object path
96 * the data object to be merged to the specified path
97 * @throws IllegalStateException
98 * if the transaction has already been submitted
100 <T extends DataObject> void merge(LogicalDatastoreType store, InstanceIdentifier<T> path, T data);
103 * Merges a piece of data with the existing data at a specified path. Any
104 * pre-existing data which is not explicitly overwritten will be preserved.
105 * This means that if you store a container, its child lists will be merged.
107 * For more information on usage and examples, please see the documentation
108 * in {@link AsyncWriteTransaction}.
110 * If you require an explicit replace operation, use {@link #put} instead.
113 * the logical data store which should be modified
115 * the data object path
117 * the data object to be merged to the specified path
118 * @param createMissingParents
119 * if {@link #CREATE_MISSING_PARENTS} ({@code true}), any missing
120 * parent nodes will be automatically created using a merge
122 * @throws IllegalStateException
123 * if the transaction has already been submitted
125 <T extends DataObject> void merge(LogicalDatastoreType store, InstanceIdentifier<T> path, T data,
126 boolean createMissingParents);
129 void delete(LogicalDatastoreType store, InstanceIdentifier<?> path);
132 * Flag value indicating that missing parents should be created.
134 boolean CREATE_MISSING_PARENTS = true;
137 * Flag value indicating that missing parents should cause an error.
139 boolean FAIL_ON_MISSING_PARENTS = false;