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.PaginationOption;
27 import org.onap.cps.spi.model.DataNode;
30 * Query interface for handling cps queries.
32 public interface CpsQueryService {
35 * Get data nodes for the given dataspace and anchor by cps path.
37 * @param dataspaceName dataspace name
38 * @param anchorName anchor name
39 * @param cpsPath cps path
40 * @param fetchDescendantsOption defines whether the descendants of the node(s) found by the query should be
41 * included in the output
42 * @return a collection of data nodes
44 Collection<DataNode> queryDataNodes(String dataspaceName, String anchorName,
45 String cpsPath, FetchDescendantsOption fetchDescendantsOption);
48 * Get data nodes for the given dataspace across all anchors by cps path.
50 * @param dataspaceName dataspace name
51 * @param cpsPath CPS path
52 * @param fetchDescendantsOption defines whether the descendants of the node(s) found by the query should be
53 * included in the output
54 * @param paginationOption pagination option
55 * @return a collection of data nodes
57 Collection<DataNode> queryDataNodesAcrossAnchors(String dataspaceName, String cpsPath,
58 FetchDescendantsOption fetchDescendantsOption,
59 PaginationOption paginationOption);
62 * Query total number of anchors for given dataspace name and cps path.
63 * @param dataspaceName dataspace name
64 * @param cpsPath cps path
65 * @return total number of anchors for given dataspace name and cps path.
67 Integer countAnchorsForDataspaceAndCpsPath(String dataspaceName, String cpsPath);