2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2020-2022 Nordix Foundation
4 * Modifications Copyright (C) 2022-2023 TechMahindra Ltd.
5 * ================================================================================
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
18 * SPDX-License-Identifier: Apache-2.0
19 * ============LICENSE_END=========================================================
22 package org.onap.cps.api;
24 import java.util.Collection;
25 import org.onap.cps.spi.FetchDescendantsOption;
26 import org.onap.cps.spi.model.DataNode;
29 * Query interface for handling cps queries.
31 public interface CpsQueryService {
34 * Get data nodes for the given dataspace and anchor by cps path.
36 * @param dataspaceName dataspace name
37 * @param anchorName anchor name
38 * @param cpsPath cps path
39 * @param fetchDescendantsOption defines whether the descendants of the node(s) found by the query should be
40 * included in the output
41 * @return a collection of data nodes
43 Collection<DataNode> queryDataNodes(String dataspaceName, String anchorName,
44 String cpsPath, FetchDescendantsOption fetchDescendantsOption);
47 * Get data nodes for the given dataspace across all anchors by cps path.
49 * @param dataspaceName dataspace name
50 * @param cpsPath CPS path
51 * @param fetchDescendantsOption defines whether the descendants of the node(s) found by the query should be
52 * included in the output
53 * @return a collection of data nodes
55 Collection<DataNode> queryDataNodesAcrossAnchors(String dataspaceName, String cpsPath,
56 FetchDescendantsOption fetchDescendantsOption);