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.propagation.conversion;
18  
19  import org.hipparchus.ode.nonstiff.FixedStepRungeKuttaIntegrator;
20  
21  /**
22   * Abstract class for fixed-step, single-step integrator builder.
23   *
24   * @param <T> field type
25   * @see org.hipparchus.ode.nonstiff.FixedStepRungeKuttaIntegrator
26   * @since 13.0
27   * @author Romain Serra
28   */
29  public abstract class AbstractFixedSingleStepIntegratorBuilder<T extends FixedStepRungeKuttaIntegrator>
30          extends AbstractIntegratorBuilder<T> implements ExplicitRungeKuttaIntegratorBuilder {
31  
32      /** Default step-size. */
33      private final double step;
34  
35      /**
36       * Constructor.
37       * @param step default step-size
38       */
39      protected AbstractFixedSingleStepIntegratorBuilder(final double step) {
40          this.step = step;
41      }
42  
43      /**
44       * Getter for the step size.
45       * @return step
46       */
47      public double getStep() {
48          return step;
49      }
50  }