1   /* Copyright 2002-2026 CS GROUP
2    * Licensed to CS GROUP (CS) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * CS licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *   http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  
18  package org.orekit.files.ccsds.ndm.odm.ocm;
19  
20  import java.util.Collections;
21  import java.util.List;
22  
23  import org.orekit.files.ccsds.utils.Initializer;
24  
25  /** Covariance history.
26   * @author Luc Maisonobe
27   * @since 11.0
28   */
29  public class OrbitCovarianceHistory {
30  
31      /** Metadata. */
32      private final OrbitCovarianceHistoryMetadata metadata;
33  
34      /** Covariance. */
35      private final List<OrbitCovariance> covariances;
36  
37      /** Simple constructor.
38       * @param metadata metadata
39       * @param covariances covariances
40       */
41      public OrbitCovarianceHistory(final OrbitCovarianceHistoryMetadata metadata,
42                               final List<OrbitCovariance> covariances) {
43          this.metadata    = metadata;
44          this.covariances = Initializer.emptyListIfNull(covariances);
45      }
46  
47      /** Get metadata.
48       * @return metadata
49       */
50      public OrbitCovarianceHistoryMetadata getMetadata() {
51          return metadata;
52      }
53  
54      /** Get the covariances.
55       * @return covariances
56       */
57      public List<OrbitCovariance> getCovariances() {
58          return Collections.unmodifiableList(covariances);
59      }
60  
61  }