1   /* Copyright 2002-2025 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  package org.orekit.propagation;
18  
19  import org.hipparchus.CalculusFieldElement;
20  import org.orekit.time.FieldAbsoluteDate;
21  
22  /** This interface is intended for ephemerides valid only during a time range.
23   *
24   * <p>This interface provides a mean to retrieve orbital parameters at
25   * any time within a given range. It should be implemented by orbit readers
26   * based on external data files and by continuous models built after numerical
27   * integration has been completed and dense output data as been
28   * gathered.</p>
29   * @param <T> the type of the field elements
30   *
31   * @author Luc Maisonobe
32   *
33   */
34  public interface FieldBoundedPropagator<T extends CalculusFieldElement<T>> extends FieldPropagator<T> {
35  
36      /** Get the first date of the range.
37       * @return the first date of the range
38       */
39      FieldAbsoluteDate<T> getMinDate();
40  
41      /** Get the last date of the range.
42       * @return the last date of the range
43       */
44      FieldAbsoluteDate<T> getMaxDate();
45  
46  }