blob: 0368c8ad081d12b4a1725f8c9e8ace76a4815ed1 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
/*
* ============LICENSE_START====================================
* DCAEGEN2-SERVICES-SDK
* =========================================================
* Copyright (C) 2019 Nokia. All rights reserved.
* =========================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ============LICENSE_END=====================================
*/
package org.onap.dcaegen2.services.sdk.rest.services.cbs.client.api.listener;
import io.vavr.collection.List;
import io.vavr.control.Option;
import java.util.function.Consumer;
/**
* The listener for changes of the {@link MerkleTree} subtree.
*
* @author <a href="mailto:piotr.jaszczyk@nokia.com">Piotr Jaszczyk</a>
* @since 1.1.2
*/
@FunctionalInterface
public interface TreeChangeListener<V> extends Consumer<Option<MerkleTree<V>>> {
/**
* Will be called when a change in a subtree has been detected. Default implementation will extract the changed subtree
* from the root and call {@link #accept(Option)}.
*
* @param updatedTree new, updated root tree
* @param path a changed path
*/
default void accept(MerkleTree<V> updatedTree, List<String> path) {
accept(updatedTree.subtree(path));
}
/**
* Will be called when a change in a subtree has been detected.
*
* @param updatedSubtree new, updated subtree or None when branch has been removed
*/
@Override
void accept(Option<MerkleTree<V>> updatedSubtree);
}
|