1   /* Copyright 2022-2025 Romain Serra
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.control.indirect.shooting.propagation;
18  
19  import org.hipparchus.CalculusFieldElement;
20  import org.hipparchus.Field;
21  import org.hipparchus.util.Binary64Field;
22  import org.orekit.propagation.conversion.ExplicitRungeKuttaIntegratorBuilder;
23  import org.orekit.propagation.conversion.FieldExplicitRungeKuttaIntegratorBuilder;
24  
25  /**
26   * Defines integration settings for indirect shooting methods. Gives standard and Field integrator builders.
27   *
28   * @author Romain Serra
29   * @since 12.2
30   * @see ShootingPropagationSettings
31   * @see ExplicitRungeKuttaIntegratorBuilder
32   * @see FieldExplicitRungeKuttaIntegratorBuilder
33   */
34  public interface ShootingIntegrationSettings {
35  
36      /**
37       * Returns an ODE integrator builder based on an explicit Runge Kutta scheme.
38       * @return builder
39       */
40      default ExplicitRungeKuttaIntegratorBuilder getIntegratorBuilder() {
41          return getFieldIntegratorBuilder(Binary64Field.getInstance()).toODEIntegratorBuilder();
42      }
43  
44      /**
45       * Returns a Field ODE integrator builder based on an explicit Runge Kutta scheme.
46       * @param field field for builder
47       * @return builder
48       * @param <T> field type
49       */
50      <T extends CalculusFieldElement<T>> FieldExplicitRungeKuttaIntegratorBuilder<T> getFieldIntegratorBuilder(Field<T> field);
51  }