1   /* Copyright 2020-2025 Exotrail
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  package org.orekit.propagation.conversion.averaging;
18  
19  import org.orekit.frames.Frame;
20  import org.orekit.time.AbsoluteDate;
21  
22  /**
23   * Abstract class representing averaged orbital state. It is used to define the frame and the date.
24   *
25   * @author Romain Serra
26   * @see AveragedOrbitalState
27   * @since 12.1
28   */
29  public abstract class AbstractAveragedOrbitalState implements AveragedOrbitalState {
30  
31      /** Reference (inertial) frame. */
32      private final Frame frame;
33      /** Orbit epoch. */
34      private final AbsoluteDate date;
35  
36      /**
37       * Protected constructor.
38       * @param date epoch
39       * @param frame reference frame
40       */
41      protected AbstractAveragedOrbitalState(final AbsoluteDate date, final Frame frame) {
42          this.date = date;
43          this.frame = frame;
44      }
45  
46      /** {@inheritDoc} */
47      @Override
48      public Frame getFrame() {
49          return frame;
50      }
51  
52      /** {@inheritDoc} */
53      @Override
54      public AbsoluteDate getDate() {
55          return date;
56      }
57  }